The test is motivated by the following observation:
Raise a signal, jump to signal handler. The ucontext_t structure dumped
by kernel to userspace has a uc_sigmask field having the mask of blocked
signals. If you run a fresh minimalistic program doing this, this field
is empty, even if you block some signals while registering the handler
with sigaction().
Here is what the man-pages have to say:
sigaction(2): "sa_mask specifies a mask of signals which should be blocked
(i.e., added to the signal mask of the thread in which the signal handler
is invoked) during execution of the signal handler. In addition, the
signal which triggered the handler will be blocked, unless the SA_NODEFER
flag is used."
signal(7): Under "Execution of signal handlers", (1.3) implies:
"The thread's current signal mask is accessible via the ucontext_t
object that is pointed to by the third argument of the signal handler."
But, (1.4) states:
"Any signals specified in act->sa_mask when registering the handler with
sigprocmask(2) are added to the thread's signal mask. The signal being
delivered is also added to the signal mask, unless SA_NODEFER was
specified when registering the handler. These signals are thus blocked
while the handler executes."
There clearly is no distinction being made in the man pages between
"Thread's signal mask" and ucontext_t; this logically should imply
that a signal blocked by populating struct sigaction should be visible
in ucontext_t.
Here is what the kernel code does (for Aarch64):
do_signal() -> handle_signal() -> sigmask_to_save(), which returns
¤t->blocked, is passed to setup_rt_frame() -> setup_sigframe() ->
__copy_to_user(). Hence, ¤t->blocked is copied to ucontext_t
exposed to userspace. Returning back to handle_signal(),
signal_setup_done() -> signal_delivered() -> sigorsets() and
set_current_blocked() are responsible for using information from
struct ksignal ksig, which was populated through the sigaction()
system call in kernel/signal.c:
copy_from_user(&new_sa.sa, act, sizeof(new_sa.sa)),
to update ¤t->blocked; hence, the set of blocked signals for the
current thread is updated AFTER the kernel dumps ucontext_t to
userspace.
Assuming that the above is indeed the intended behaviour, because it
semantically makes sense, since the signals blocked using sigaction()
remain blocked only till the execution of the handler, and not in the
context present before jumping to the handler (but nothing can be
confirmed from the man-pages), this patch introduces a test for
mangling with uc_sigmask.
The test asserts the relation between blocked signal, delivered signal,
and ucontext. The ucontext is mangled with, by adding a signal mask to
it; on return from the handler, the thread must block the corresponding
signal.
In the test description, I have also described signal delivery and blockage,
for ease of understanding what the test does.
Signed-off-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Rename sigaltstack to generic signal directory, to allow adding more
signal tests in the future.
Signed-off-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
In alarm_wkalm_set and alarm_wkalm_set_minute test, they use different
ioctl (RTC_ALM_SET/RTC_WKALM_SET) for alarm feature detection. They will
skip testing if RTC_ALM_SET/RTC_WKALM_SET ioctl returns an EINVAL error
code. This design may miss detecting real problems when the
efi.set_wakeup_time() return errors and then RTC_ALM_SET/RTC_WKALM_SET
ioctl returns an EINVAL error code with RTC_FEATURE_ALARM enabled.
In order to make rtctest more explicit and robust, we propose to use
RTC_PARAM_GET ioctl interface to check rtc alarm feature state before
running alarm related tests. If the kernel does not support RTC_PARAM_GET
ioctl interface, we will fallback to check the error number of
(RTC_ALM_SET/RTC_WKALM_SET) ioctl call for alarm feature detection.
Requires commit 101ca8d059 ("rtc: efi: Enable SET/GET WAKEUP services
as optional")
Reviewed-by: Koba Ko <kobak@nvidia.com>
Reviewed-by: Matthew R. Ochs <mochs@nvidia.com>
Signed-off-by: Joseph Jang <jjang@nvidia.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
timers tests defines CLOCKIDs locally. Remove all local CLOCKIDs except
CLOCK_HWSPECIFIC and use defines from time.h header file.
CLOCK_HWSPECIFIC and CLOCK_SGI_CYCLE are the same and CLOCK_SGI_CYCLE
is deprecated,
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
improve timer_create failure message with strerror() function
to give more information to the user.
Signed-off-by: Gianfranco Trad <gianf.trad@gmail.com>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Remove local NSEC_PER_SEC and USEC_PER_SEC defines. Pick them up from
include/vdso/time64.h. This requires -I $(top_srcdir) to the timers
Makefile to include the include/vdso/time64.h.
posix_timers test names the defines NSECS_PER_SEC and USECS_PER_SEC.
Change posix_timers test references to the defines to match the
defines in the header file.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: John Stultz <jstultz@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This kselftest update for Linux 6.12-rc3 consists of several fixes
for build, run-time errors, and reporting errors:
-- ftrace: regression test for a kernel crash when running function graph
tracing and then enabling function profiler.
-- rseq: fix for mm_cid test failure.
-- vDSO:
- fixes to reporting skip and other error conditions.
- changes unconditionally build chacha and getrandom tests on
all architectures to make it easier for them to run in CIs.
- build error when sched.h to bring in CLONE_NEWTIME define.
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Merge tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"Fixes for build, run-time errors, and reporting errors:
- ftrace: regression test for a kernel crash when running function
graph tracing and then enabling function profiler.
- rseq: fix for mm_cid test failure.
- vDSO:
- fixes to reporting skip and other error conditions
- changes unconditionally build chacha and getrandom tests on all
architectures to make it easier for them to run in CIs
- build error when sched.h to bring in CLONE_NEWTIME define"
* tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
ftrace/selftest: Test combination of function_graph tracer and function profiler
selftests/rseq: Fix mm_cid test failure
selftests: vDSO: Explicitly include sched.h
selftests: vDSO: improve getrandom and chacha error messages
selftests: vDSO: unconditionally build getrandom test
selftests: vDSO: unconditionally build chacha test
Masami reported a bug when running function graph tracing then the
function profiler. The following commands would cause a kernel crash:
# cd /sys/kernel/tracing/
# echo function_graph > current_tracer
# echo 1 > function_profile_enabled
In that order. Create a test to test this two to make sure this does not
come back as a regression.
Link: https://lore.kernel.org/172398528350.293426.8347220120333730248.stgit@devnote2
Link: https://lore.kernel.org/all/20241010165235.35122877@gandalf.local.home/
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Current release - regressions:
- dsa: sja1105: fix reception from VLAN-unaware bridges
- Revert "net: stmmac: set PP_FLAG_DMA_SYNC_DEV only if XDP is enabled"
- eth: fec: don't save PTP state if PTP is unsupported
Current release - new code bugs:
- smc: fix lack of icsk_syn_mss with IPPROTO_SMC, prevent null-deref
- eth: airoha: update Tx CPU DMA ring idx at the end of xmit loop
- phy: aquantia: AQR115c fix up PMA capabilities
Previous releases - regressions:
- tcp: 3 fixes for retrans_stamp and undo logic
Previous releases - always broken:
- net: do not delay dst_entries_add() in dst_release()
- netfilter: restrict xtables extensions to families that are safe,
syzbot found a way to combine ebtables with extensions that are
never used by userspace tools
- sctp: ensure sk_state is set to CLOSED if hashing fails in
sctp_listen_start
- mptcp: handle consistently DSS corruption, and prevent corruption
due to large pmtu xmit
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth and netfilter.
Current release - regressions:
- dsa: sja1105: fix reception from VLAN-unaware bridges
- Revert "net: stmmac: set PP_FLAG_DMA_SYNC_DEV only if XDP is
enabled"
- eth: fec: don't save PTP state if PTP is unsupported
Current release - new code bugs:
- smc: fix lack of icsk_syn_mss with IPPROTO_SMC, prevent null-deref
- eth: airoha: update Tx CPU DMA ring idx at the end of xmit loop
- phy: aquantia: AQR115c fix up PMA capabilities
Previous releases - regressions:
- tcp: 3 fixes for retrans_stamp and undo logic
Previous releases - always broken:
- net: do not delay dst_entries_add() in dst_release()
- netfilter: restrict xtables extensions to families that are safe,
syzbot found a way to combine ebtables with extensions that are
never used by userspace tools
- sctp: ensure sk_state is set to CLOSED if hashing fails in
sctp_listen_start
- mptcp: handle consistently DSS corruption, and prevent corruption
due to large pmtu xmit"
* tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
MAINTAINERS: Add headers and mailing list to UDP section
MAINTAINERS: consistently exclude wireless files from NETWORKING [GENERAL]
slip: make slhc_remember() more robust against malicious packets
net/smc: fix lacks of icsk_syn_mss with IPPROTO_SMC
ppp: fix ppp_async_encode() illegal access
docs: netdev: document guidance on cleanup patches
phonet: Handle error of rtnl_register_module().
mpls: Handle error of rtnl_register_module().
mctp: Handle error of rtnl_register_module().
bridge: Handle error of rtnl_register_module().
vxlan: Handle error of rtnl_register_module().
rtnetlink: Add bulk registration helpers for rtnetlink message handlers.
net: do not delay dst_entries_add() in dst_release()
mptcp: pm: do not remove closing subflows
mptcp: fallback when MPTCP opts are dropped after 1st data
tcp: fix mptcp DSS corruption due to large pmtu xmit
mptcp: handle consistently DSS corruption
net: netconsole: fix wrong warning
net: dsa: refuse cross-chip mirroring operations
net: fec: don't save PTP state if PTP is unsupported
...
are MM.
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Merge tag 'mm-hotfixes-stable-2024-10-09-15-46' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"12 hotfixes, 5 of which are c:stable. All singletons, about half of
which are MM"
* tag 'mm-hotfixes-stable-2024-10-09-15-46' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: zswap: delete comments for "value" member of 'struct zswap_entry'.
CREDITS: sort alphabetically by name
secretmem: disable memfd_secret() if arch cannot set direct map
.mailmap: update Fangrui's email
mm/huge_memory: check pmd_special() only after pmd_present()
resource, kunit: fix user-after-free in resource_test_region_intersects()
fs/proc/kcore.c: allow translation of physical memory addresses
selftests/mm: fix incorrect buffer->mirror size in hmm2 double_map test
device-dax: correct pgoff align in dax_set_mapping()
kthread: unpark only parked kthread
Revert "mm: introduce PF_MEMALLOC_NORECLAIM, PF_MEMALLOC_NOWARN"
bcachefs: do not use PF_MEMALLOC_NORECLAIM
meta iifname veth0 ip daddr ... fib daddr oif
... is expected to return "dummy0" interface which is part of same vrf
as veth0.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The hmm2 double_map test was failing due to an incorrect buffer->mirror
size. The buffer->mirror size was 6, while buffer->ptr size was 6 *
PAGE_SIZE. The test failed because the kernel's copy_to_user function was
attempting to copy a 6 * PAGE_SIZE buffer to buffer->mirror. Since the
size of buffer->mirror was incorrect, copy_to_user failed.
This patch corrects the buffer->mirror size to 6 * PAGE_SIZE.
Test Result without this patch
==============================
# RUN hmm2.hmm2_device_private.double_map ...
# hmm-tests.c:1680:double_map:Expected ret (-14) == 0 (0)
# double_map: Test terminated by assertion
# FAIL hmm2.hmm2_device_private.double_map
not ok 53 hmm2.hmm2_device_private.double_map
Test Result with this patch
===========================
# RUN hmm2.hmm2_device_private.double_map ...
# OK hmm2.hmm2_device_private.double_map
ok 53 hmm2.hmm2_device_private.double_map
Link: https://lkml.kernel.org/r/20240927050752.51066-1-donettom@linux.ibm.com
Fixes: fee9f6d1b8 ("mm/hmm/test: add selftests for HMM")
Signed-off-by: Donet Tom <donettom@linux.ibm.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The previous commit introduced the use of CLONE_NEWTIME without including
<sched.h> which contains its definition.
Add an explicit include of <sched.h> to ensure that CLONE_NEWTIME
is correctly defined before it is used.
Fixes: 2aec90036d ("selftests: vDSO: ensure vgetrandom works in a time namespace")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Improve the error and skip condition messages to let the developer know
precisely where a test has failed. Also make better use of the ksft api
for this.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Rather than building on supported archs, build on all archs, and then
use the presence of the symbol in the vDSO to either skip the test or
move forward with it.
Note that this means that this test no longer checks whether the symbol
was correctly added to the kernel. But hopefully this will be clear
enough to developers and we'll cross our fingers that symbols aren't
removed by accident and not caught after this change.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Rather than using symlinks to find the vgetrandom-chacha.S file for each
arch, store this in a file that uses the compiler to determine
architecture, and then make use of weak symbols to skip the test on
architectures that don't provide the code.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
- ops.enqueue() didn't have a way to tell whether select_task_rq_scx() and
thus ops.select() were skipped. Some schedulers were incorrectly using
SCX_ENQ_WAKEUP. Add SCX_ENQ_CPU_SELECTED and fix scx_qmap using it.
- Remove a spurious WARN_ON_ONCE() in scx_cgroup_exit().
- Fix error information clobbering during load.
- Add missing __weak markers to BPF helper declarations.
- Doc update.
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Merge tag 'sched_ext-for-6.12-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- ops.enqueue() didn't have a way to tell whether select_task_rq_scx()
and thus ops.select() were skipped. Some schedulers were incorrectly
using SCX_ENQ_WAKEUP. Add SCX_ENQ_CPU_SELECTED and fix scx_qmap using
it.
- Remove a spurious WARN_ON_ONCE() in scx_cgroup_exit()
- Fix error information clobbering during load
- Add missing __weak markers to BPF helper declarations
- Doc update
* tag 'sched_ext-for-6.12-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Documentation: Update instructions for running example schedulers
sched_ext, scx_qmap: Add and use SCX_ENQ_CPU_SELECTED
sched/core: Add ENQUEUE_RQ_SELECTED to indicate whether ->select_task_rq() was called
sched/core: Make select_task_rq() take the pointer to wake_flags instead of value
sched_ext: scx_cgroup_exit() may be called without successful scx_cgroup_init()
sched_ext: Improve error reporting during loading
sched_ext: Add __weak markers to BPF helper function decalarations
- Fix an assert() to handle captured and unprocessed ARM CoreSight CPU traces.
- Fix static build compilation error when libdw isn't installed or is too old.
- Add missing include when building with !HAVE_DWARF_GETLOCATIONS_SUPPORT.
- Add missing refcount put on 32-bit DSOs.
- Fix disassembly of user space binaries by setting the binary_type of DSO when
loading.
- Update headers with the kernel sources, including asound.h, sched.h, fcntl,
msr-index.h, irq_vectors.h, socket.h, list_sort.c and arm64's cputype.h.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.12-1-2024-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix an assert() to handle captured and unprocessed ARM CoreSight CPU
traces
- Fix static build compilation error when libdw isn't installed or is
too old
- Add missing include when building with
!HAVE_DWARF_GETLOCATIONS_SUPPORT
- Add missing refcount put on 32-bit DSOs
- Fix disassembly of user space binaries by setting the binary_type of
DSO when loading
- Update headers with the kernel sources, including asound.h, sched.h,
fcntl, msr-index.h, irq_vectors.h, socket.h, list_sort.c and arm64's
cputype.h
* tag 'perf-tools-fixes-for-v6.12-1-2024-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf cs-etm: Fix the assert() to handle captured and unprocessed cpu trace
perf build: Fix build feature-dwarf_getlocations fail for old libdw
perf build: Fix static compilation error when libdw is not installed
perf dwarf-aux: Fix build with !HAVE_DWARF_GETLOCATIONS_SUPPORT
tools headers arm64: Sync arm64's cputype.h with the kernel sources
perf tools: Cope with differences for lib/list_sort.c copy from the kernel
tools check_headers.sh: Add check variant that excludes some hunks
perf beauty: Update copy of linux/socket.h with the kernel sources
tools headers UAPI: Sync the linux/in.h with the kernel sources
perf trace beauty: Update the arch/x86/include/asm/irq_vectors.h copy with the kernel sources
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools include UAPI: Sync linux/fcntl.h copy with the kernel sources
tools include UAPI: Sync linux/sched.h copy with the kernel sources
tools include UAPI: Sync sound/asound.h copy with the kernel sources
perf vdso: Missed put on 32-bit dsos
perf symbol: Set binary_type of dso when loading
Starting with 6.12 commit 85585b4bc8 ("selftests: add ncdevmem, netcat
for devmem TCP") kselftest-all creates additional outputs that
kselftest-clean does not cleanup:
$ make defconfig
$ make kselftest-all
$ make kselftest-clean
$ git clean -ndxf | grep tools/net
Would remove tools/net/ynl/lib/__pycache__/
Would remove tools/net/ynl/lib/ynl.a
Would remove tools/net/ynl/lib/ynl.d
Would remove tools/net/ynl/lib/ynl.o
Make kselftest-clean remove the newly added net/ynl outputs.
Fixes: 85585b4bc8 ("selftests: add ncdevmem, netcat for devmem TCP")
Signed-off-by: Greg Thelen <gthelen@google.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20241005215600.852260-1-gthelen@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The generated include.sh should be ignored by git. Create a new
gitignore and add the file to the list.
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241005-net-selftests-gitignore-v2-3-3a0b2876394a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The include.sh file is generated when building the net/rds selftests,
but there is no rule to delete it with the clean target. Add the file to
EXTRA_CLEAN in order to remove it when required.
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241005-net-selftests-gitignore-v2-2-3a0b2876394a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
scx_qmap and other schedulers in the SCX repo are using SCX_ENQ_WAKEUP to
tell whether ops.select_cpu() was called. This is incorrect as
ops.select_cpu() can be skipped in the wakeup path and leads to e.g.
incorrectly skipping direct dispatch for tasks that are bound to a single
CPU.
sched core has been updated to specify ENQUEUE_RQ_SELECTED if
->select_task_rq() was called. Map it to SCX_ENQ_CPU_SELECTED and update
scx_qmap to test it instead of SCX_ENQ_WAKEUP.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Vernet <void@manifault.com>
Cc: Daniel Hodges <hodges.daniel.scott@gmail.com>
Cc: Changwoo Min <multics69@gmail.com>
Cc: Andrea Righi <andrea.righi@linux.dev>
Cc: Dan Schatzberg <schatzberg.dan@gmail.com>
* Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
* Make sure that the host's vector length is at capped by a value
common to all CPUs
* Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
* Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
x86:
* Fix compilation with KVM_INTEL=KVM_AMD=n
* Fix disabling KVM_X86_QUIRK_SLOT_ZAP_ALL when shadow MMU is in use
Selftests:
* Fix compilation on non-x86 architectures
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM64:
- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
- Make sure that the host's vector length is at capped by a value
common to all CPUs
- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
x86:
- Fix compilation with KVM_INTEL=KVM_AMD=n
- Fix disabling KVM_X86_QUIRK_SLOT_ZAP_ALL when shadow MMU is in use
Selftests:
- Fix compilation on non-x86 architectures"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
x86/reboot: emergency callbacks are now registered by common KVM code
KVM: x86: leave kvm.ko out of the build if no vendor module is requested
KVM: x86/mmu: fix KVM_X86_QUIRK_SLOT_ZAP_ALL for shadow MMU
KVM: arm64: Fix kvm_has_feat*() handling of negative features
KVM: selftests: Fix build on architectures other than x86_64
KVM: arm64: Another reviewer reshuffle
KVM: arm64: Constrain the host to the maximum shared SVE VL with pKVM
KVM: arm64: Fix __pkvm_init_vcpu cptr_el2 error path
- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
- Make sure that the host's vector length is at capped by a value
common to all CPUs
- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
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Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.12, take #1
- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
- Make sure that the host's vector length is at capped by a value
common to all CPUs
- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
This kselftest fixes update for Linux 6.12-rc2 consists of fixes
to build warnings, install scripts, run-time error path, and
git status cleanups to tests:
-- devices/probe: fix for Python3 regex string syntax warnings
-- clone3: removing unused macro from clone3_cap_checkpoint_restore()
-- vDSO: fix to align getrandom states to cache line
-- core and exec: add missing executables to .gitignore files
-- rtc: change to skip test if /dev/rtc0 can't be accessed
-- timers/posix: fix warn_unused_result result in __fatal_error()
-- breakpoints: fix to detect suspend successful condition correctly
-- hid: fix to install required dependencies to run the test
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Merge tag 'linux_kselftest-fixes-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"Fixes to build warnings, install scripts, run-time error path, and git
status cleanups to tests:
- devices/probe: fix for Python3 regex string syntax warnings
- clone3: removing unused macro from clone3_cap_checkpoint_restore()
- vDSO: fix to align getrandom states to cache line
- core and exec: add missing executables to .gitignore files
- rtc: change to skip test if /dev/rtc0 can't be accessed
- timers/posix: fix warn_unused_result result in __fatal_error()
- breakpoints: fix to detect suspend successful condition correctly
- hid: fix to install required dependencies to run the test"
* tag 'linux_kselftest-fixes-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: breakpoints: use remaining time to check if suspend succeed
kselftest/devices/probe: Fix SyntaxWarning in regex strings for Python3
selftest: hid: add missing run-hid-tools-tests.sh
selftests: vDSO: align getrandom states to cache line
selftests: exec: update gitignore for load_address
selftests: core: add unshare_test to gitignore
clone3: clone3_cap_checkpoint_restore: remove unused MAX_PID_NS_LEVEL macro
selftests:timers: posix_timers: Fix warn_unused_result in __fatal_error()
selftest: rtc: Check if could access /dev/rtc0 before testing
Currently, the second bridge command overwrites the first one.
Fix this by adding this VID to the interface behind $swp2.
The one_bridge_two_pvids() test intends to check that there is no
leakage of traffic between bridge ports which have a single VLAN - the
PVID VLAN.
Because of a typo, port $swp1 is configured with a PVID twice (second
command overwrites first), and $swp2 isn't configured at all (and since
the bridge vlan_default_pvid property is set to 0, this port will not
have a PVID at all, so it will drop all untagged and priority-tagged
traffic).
So, instead of testing the configuration that was intended, we are
testing a different one, where one port has PVID 2 and the other has
no PVID. This incorrect version of the test should also pass, but is
ineffective for its purpose, so fix the typo.
This typo has an impact on results of the test,
potentially leading to wrong conclusions regarding
the functionality of a network device.
The tests results:
TEST: Switch ports in VLAN-aware bridge with different PVIDs:
Unicast non-IP untagged [ OK ]
Multicast non-IP untagged [ OK ]
Broadcast non-IP untagged [ OK ]
Unicast IPv4 untagged [ OK ]
Multicast IPv4 untagged [ OK ]
Unicast IPv6 untagged [ OK ]
Multicast IPv6 untagged [ OK ]
Unicast non-IP VID 1 [ OK ]
Multicast non-IP VID 1 [ OK ]
Broadcast non-IP VID 1 [ OK ]
Unicast IPv4 VID 1 [ OK ]
Multicast IPv4 VID 1 [ OK ]
Unicast IPv6 VID 1 [ OK ]
Multicast IPv6 VID 1 [ OK ]
Unicast non-IP VID 4094 [ OK ]
Multicast non-IP VID 4094 [ OK ]
Broadcast non-IP VID 4094 [ OK ]
Unicast IPv4 VID 4094 [ OK ]
Multicast IPv4 VID 4094 [ OK ]
Unicast IPv6 VID 4094 [ OK ]
Multicast IPv6 VID 4094 [ OK ]
Fixes: 476a4f05d9 ("selftests: forwarding: add a no_forwarding.sh test")
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Kacper Ludwinski <kac.ludwinski@icloud.com>
Link: https://patch.msgid.link/20241002051016.849-1-kac.ludwinski@icloud.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix tp_printk command line option crashing the kernel
With the code that can handle a buffer from a previous boot, the
trace_check_vprintf() needed access to the delta of the address
space used by the old buffer and the current buffer. To do so,
the trace_array (tr) parameter was used. But when tp_printk is
enabled on the kernel command line, no trace buffer is used and
the trace event is sent directly to printk(). That meant the tr
field of the iterator descriptor was NULL, and since tp_printk still
uses trace_check_vprintf() it caused a NULL dereference.
- Add ptrace.h include to x86 ftrace file for completeness
- Fix rtla installation when done with out-of-tree build
- Fix the help messages in rtla that were incorrect
- Several fixes to fix races with the timerlat and hwlat code
Several locking issues were discovered with the coordination
between timerlat kthread creation and hotplug. As timerlat has
callbacks from hotplug code to start kthreads when CPUs come online.
There are also locking issues with grabbing the cpu_read_lock()
and the locks within timerlat.
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Merge tag 'trace-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix tp_printk command line option crashing the kernel
With the code that can handle a buffer from a previous boot, the
trace_check_vprintf() needed access to the delta of the address space
used by the old buffer and the current buffer. To do so, the
trace_array (tr) parameter was used. But when tp_printk is enabled on
the kernel command line, no trace buffer is used and the trace event
is sent directly to printk(). That meant the tr field of the iterator
descriptor was NULL, and since tp_printk still uses
trace_check_vprintf() it caused a NULL dereference.
- Add ptrace.h include to x86 ftrace file for completeness
- Fix rtla installation when done with out-of-tree build
- Fix the help messages in rtla that were incorrect
- Several fixes to fix races with the timerlat and hwlat code
Several locking issues were discovered with the coordination between
timerlat kthread creation and hotplug. As timerlat has callbacks from
hotplug code to start kthreads when CPUs come online. There are also
locking issues with grabbing the cpu_read_lock() and the locks within
timerlat.
* tag 'trace-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/hwlat: Fix a race during cpuhp processing
tracing/timerlat: Fix a race during cpuhp processing
tracing/timerlat: Drop interface_lock in stop_kthread()
tracing/timerlat: Fix duplicated kthread creation due to CPU online/offline
x86/ftrace: Include <asm/ptrace.h>
rtla: Fix the help text in osnoise and timerlat top tools
tools/rtla: Fix installation from out-of-tree build
tracing: Fix trace_check_vprintf() when tp_printk is used
Add a new netfilter selftests to test against br_netfilter panics when
VxLAN single-device is used together with untagged traffic and high MTU.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Andy Roulin <aroulin@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20241001154400.22787-3-aroulin@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Slightly high amount of changes in this round, partly because of my
vacation in the last weeks. But all changes are small and nothing
looks worrisome.
The biggest LOCs is MAINTAINERS updates, and there is a core change
for card-ID string creation for non-ASCII inputs. Others are rather
device-specific, such as new quirks and device IDs for ASoC, usual
HD-audio and USB-audio quirks and fixes, as well as regression fixes
in HD-audio HDMI audio and Conexant codec.
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Merge tag 'sound-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Slightly high amount of changes in this round, partly because of my
vacation in the last weeks. But all changes are small and nothing
looks worrisome.
The biggest LOCs is MAINTAINERS updates, and there is a core change
for card-ID string creation for non-ASCII inputs. Others are rather
device-specific, such as new quirks and device IDs for ASoC, usual
HD-audio and USB-audio quirks and fixes, as well as regression fixes
in HD-audio HDMI audio and Conexant codec"
* tag 'sound-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (39 commits)
ALSA: hda/conexant: Fix conflicting quirk for System76 Pangolin
ALSA: line6: add hw monitor volume control to POD HD500X
ALSA: gus: Fix some error handling paths related to get_bpos() usage
ALSA: hda: Add missing parameter description for snd_hdac_stream_timecounter_init()
ALSA: usb-audio: Add native DSD support for Luxman D-08u
ALSA: core: add isascii() check to card ID generator
MAINTAINERS: ALSA: use linux-sound@vger.kernel.org list
Revert "ALSA: hda: Conditionally use snooping for AMD HDMI"
ASoC: intel: sof_sdw: Add check devm_kasprintf() returned value
ASoC: imx-card: Set card.owner to avoid a warning calltrace if SND=m
ASoC: dt-bindings: davinci-mcasp: Fix interrupts property
ASoC: qcom: sm8250: add qrb4210-rb2-sndcard compatible string
ASoC: dt-bindings: qcom,sm8250: add qrb4210-rb2-sndcard
ALSA: hda: fix trigger_tstamp_latched
ALSA: hda/realtek: Add a quirk for HP Pavilion 15z-ec200
ALSA: hda/generic: Drop obsoleted obey_preferred_dacs flag
ALSA: hda/generic: Unconditionally prefer preferred_dacs pairs
ALSA: silence integer wrapping warning
ASoC: Intel: soc-acpi: arl: Fix some missing empty terminators
ASoC: Intel: soc-acpi-intel-rpl-match: add missing empty item
...
The help text in osnoise top and timerlat top had some minor errors
and omissions. The -d option was missing the 's' (second) abbreviation and
the error message for '-d' used '-D'.
Cc: stable@vger.kernel.org
Fixes: 1eceb2fc2c ("rtla/osnoise: Add osnoise top mode")
Fixes: a828cd18bc ("rtla: Add timerlat tool and timelart top mode")
Link: https://lore.kernel.org/20240813155831.384446-1-ezulian@redhat.com
Suggested-by: Tomas Glozar <tglozar@redhat.com>
Reviewed-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Eder Zulian <ezulian@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
rtla now supports out-of-tree builds, but installation fails as it
still tries to install the rtla binary from the source tree. Use the
existing macro $(RTLA) to refer to the binary.
Link: https://lore.kernel.org/ZudubuoU_JHjPZ7w@decadent.org.uk
Fixes: 01474dc706 ("tools/rtla: Use tools/build makefiles to build rtla")
Reviewed-by: Tomas Glozar <tglozar@redhat.com>
Tested-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Ben Hutchings <benh@debian.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Current release - regressions:
- eth: mlx5: fix wrong reserved field in hca_cap_2 in mlx5_ifc
- eth: am65-cpsw: fix forever loop in cleanup code
Current release - new code bugs:
- eth: mlx5: HWS, fixed double-free in error flow of creating SQ
Previous releases - regressions:
- core: avoid potential underflow in qdisc_pkt_len_init() with UFO
- core: test for not too small csum_start in virtio_net_hdr_to_skb()
- vrf: revert "vrf: remove unnecessary RCU-bh critical section"
- bluetooth:
- fix uaf in l2cap_connect
- fix possible crash on mgmt_index_removed
- dsa: improve shutdown sequence
- eth: mlx5e: SHAMPO, fix overflow of hd_per_wq
- eth: ip_gre: fix drops of small packets in ipgre_xmit
Previous releases - always broken:
- core: fix gso_features_check to check for both dev->gso_{ipv4_,}max_size
- core: fix tcp fraglist segmentation after pull from frag_list
- netfilter: nf_tables: prevent nf_skb_duplicated corruption
- sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
- mac802154: fix potential RCU dereference issue in mac802154_scan_worker
- eth: fec: restart PPS after link state change
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from ieee802154, bluetooth and netfilter.
Current release - regressions:
- eth: mlx5: fix wrong reserved field in hca_cap_2 in mlx5_ifc
- eth: am65-cpsw: fix forever loop in cleanup code
Current release - new code bugs:
- eth: mlx5: HWS, fixed double-free in error flow of creating SQ
Previous releases - regressions:
- core: avoid potential underflow in qdisc_pkt_len_init() with UFO
- core: test for not too small csum_start in virtio_net_hdr_to_skb()
- vrf: revert "vrf: remove unnecessary RCU-bh critical section"
- bluetooth:
- fix uaf in l2cap_connect
- fix possible crash on mgmt_index_removed
- dsa: improve shutdown sequence
- eth: mlx5e: SHAMPO, fix overflow of hd_per_wq
- eth: ip_gre: fix drops of small packets in ipgre_xmit
Previous releases - always broken:
- core: fix gso_features_check to check for both
dev->gso_{ipv4_,}max_size
- core: fix tcp fraglist segmentation after pull from frag_list
- netfilter: nf_tables: prevent nf_skb_duplicated corruption
- sctp: set sk_state back to CLOSED if autobind fails in
sctp_listen_start
- mac802154: fix potential RCU dereference issue in
mac802154_scan_worker
- eth: fec: restart PPS after link state change"
* tag 'net-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (48 commits)
sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
dt-bindings: net: xlnx,axi-ethernet: Add missing reg minItems
doc: net: napi: Update documentation for napi_schedule_irqoff
net/ncsi: Disable the ncsi work before freeing the associated structure
net: phy: qt2025: Fix warning: unused import DeviceId
gso: fix udp gso fraglist segmentation after pull from frag_list
bridge: mcast: Fail MDB get request on empty entry
vrf: revert "vrf: Remove unnecessary RCU-bh critical section"
net: ethernet: ti: am65-cpsw: Fix forever loop in cleanup code
net: phy: realtek: Check the index value in led_hw_control_get
ppp: do not assume bh is held in ppp_channel_bridge_input()
selftests: rds: move include.sh to TEST_FILES
net: test for not too small csum_start in virtio_net_hdr_to_skb()
net: gso: fix tcp fraglist segmentation after pull from frag_list
ipv4: ip_gre: Fix drops of small packets in ipgre_xmit
net: stmmac: dwmac4: extend timeout for VLAN Tag register busy bit check
net: add more sanity checks to qdisc_pkt_len_init()
net: avoid potential underflow in qdisc_pkt_len_init() with UFO
net: ethernet: ti: cpsw_ale: Fix warning on some platforms
net: microchip: Make FDMA config symbol invisible
...
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Merge tag 'nf-24-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix incorrect documentation in uapi/linux/netfilter/nf_tables.h
regarding flowtable hooks, from Phil Sutter.
2) Fix nft_audit.sh selftests with newer nft binaries, due to different
(valid) audit output, also from Phil.
3) Disable BH when duplicating packets via nf_dup infrastructure,
otherwise race on nf_skb_duplicated for locally generated traffic.
From Eric.
4) Missing return in callback of selftest C program, from zhang jiao.
netfilter pull request 24-10-02
* tag 'nf-24-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
selftests: netfilter: Add missing return value
netfilter: nf_tables: prevent nf_skb_duplicated corruption
selftests: netfilter: Fix nft_audit.sh for newer nft binaries
netfilter: uapi: NFTA_FLOWTABLE_HOOK is NLA_NESTED
====================
Link: https://patch.msgid.link/20241002202421.1281311-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The include.sh file is generated for inclusion and should not be executable.
Otherwise, it will be added to kselftest-list.txt. Additionally, add the
executable bit for test.py at the same time to ensure proper functionality.
Fixes: 3ade6ce125 ("selftests: rds: add testing infrastructure")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20240927041349.81216-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'pull-work.unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull generic unaligned.h cleanups from Al Viro:
"Get rid of architecture-specific <asm/unaligned.h> includes, replacing
them with a single generic <linux/unaligned.h> header file.
It's the second largest (after asm/io.h) class of asm/* includes, and
all but two architectures actually end up using exact same file.
Massage the remaining two (arc and parisc) to do the same and just
move the thing to from asm-generic/unaligned.h to linux/unaligned.h"
[ This is one of those things that we're better off doing outside the
merge window, and would only cause extra conflict noise if it was in
linux-next for the next release due to all the trivial #include line
updates. Rip off the band-aid. - Linus ]
* tag 'pull-work.unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
move asm/unaligned.h to linux/unaligned.h
arc: get rid of private asm/unaligned.h
parisc: get rid of private asm/unaligned.h
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
If one builds perf with DEBUG=1, captures data on multiple CPUs and
finally runs 'perf report -C <cpu>' for only one of the cpus, assert()
aborts the program. This happens because there are empty queues with
format set.
This patch changes the condition to abort only if a queue is not empty
and if the format is unset.
$ make -C tools/perf DEBUG=1 CORESIGHT=1 CSLIBS=/usr/lib CSINCLUDES=/usr/include install
$ perf record -o kcore --kcore -e cs_etm/timestamp/k -s -C 0-1 dd if=/dev/zero of=/dev/null bs=1M count=1
$ perf report --input kcore/data --vmlinux=/home/ikoskine/projects/linux/vmlinux -C 1
Aborted (core dumped)
Fixes: 57880a7966 ("perf: cs-etm: Allocate queues for all CPUs")
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240924233930.5193-1-ilkka@os.amperecomputing.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
For libdw versions below 0.177, need to link libdl.a in addition to
libbebl.a during static compilation, otherwise
feature-dwarf_getlocations compilation will fail.
Before:
$ make LDFLAGS=-static
BUILD: Doing 'make -j20' parallel build
<SNIP>
Makefile.config:483: Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157
<SNIP>
$ cat ../build/feature/test-dwarf_getlocations.make.output
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libebl.a(eblclosebackend.o): in function `ebl_closebackend':
(.text+0x20): undefined reference to `dlclose'
collect2: error: ld returned 1 exit status
After:
$ make LDFLAGS=-static
<SNIP>
Auto-detecting system features:
... dwarf: [ on ]
<SNIP>
$ ./perf probe
Usage: perf probe [<options>] 'PROBEDEF' ['PROBEDEF' ...]
or: perf probe [<options>] --add 'PROBEDEF' [--add 'PROBEDEF' ...]
or: perf probe [<options>] --del '[GROUP:]EVENT' ...
or: perf probe --list [GROUP:]EVENT ...
<SNIP>
Fixes: 536661da6e ("perf: build: Only link libebl.a for old libdw")
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240919013513.118527-3-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If libdw is not installed in build environment, the output of
'pkg-config --modversion libdw' is empty, causing LIBDW_VERSION_2 to be
empty and the shell test will have the following error:
/bin/sh: 1: test: -lt: unexpected operator
Before:
$ pkg-config --modversion libdw
Package libdw was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdw.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libdw' found
$ make LDFLAGS=-static -j16
BUILD: Doing 'make -j20' parallel build
<SNIP>
Package libdw was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdw.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libdw' found
/bin/sh: 1: test: -lt: unexpected operator
After:
1. libdw is not installed:
$ pkg-config --modversion libdw
Package libdw was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdw.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libdw' found
$ make LDFLAGS=-static -j16
BUILD: Doing 'make -j20' parallel build
<SNIP>
Package libdw was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdw.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libdw' found
Makefile.config:473: No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR
2. libdw version is lower than 0.177
$ pkg-config --modversion libdw
0.176
$ make LDFLAGS=-static -j16
BUILD: Doing 'make -j20' parallel build
<SNIP>
Auto-detecting system features:
... dwarf: [ on ]
<SNIP>
INSTALL libsubcmd_headers
INSTALL libapi_headers
INSTALL libperf_headers
INSTALL libsymbol_headers
INSTALL libbpf_headers
LINK perf
3. libdw version is higher than 0.177
$ pkg-config --modversion libdw
0.186
$ make LDFLAGS=-static -j16
BUILD: Doing 'make -j20' parallel build
<SNIP>
Auto-detecting system features:
... dwarf: [ on ]
<SNIP>
CC util/bpf-utils.o
CC util/pfm.o
LD util/perf-util-in.o
LD perf-util-in.o
AR libperf-util.a
LINK perf
Fixes: 536661da6e ("perf: build: Only link libebl.a for old libdw")
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240919013513.118527-2-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The linked fixes commit added an #include "dwarf-aux.h" to disasm.h
which gets picked up in a lot of places. Without
HAVE_DWARF_GETLOCATIONS_SUPPORT the stubs return an errno, so include
errno.h to fix the following build error:
In file included from util/disasm.h:8,
from util/annotate.h:16,
from builtin-top.c:23:
util/dwarf-aux.h: In function 'die_get_var_range':
util/dwarf-aux.h:183:10: error: 'ENOTSUP' undeclared (first use in this function)
183 | return -ENOTSUP;
| ^~~~~~~
Fixes: 782959ac24 ("perf annotate: Add "update_insn_state" callback function to handle arch specific instruction tracking")
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241001123625.1063153-1-james.clark@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
step_after_suspend_test fails with device busy error while
writing to /sys/power/state to start suspend. The test believes
it failed to enter suspend state with
$ sudo ./step_after_suspend_test
TAP version 13
Bail out! Failed to enter Suspend state
However, in the kernel message, I indeed see the system get
suspended and then wake up later.
[611172.033108] PM: suspend entry (s2idle)
[611172.044940] Filesystems sync: 0.006 seconds
[611172.052254] Freezing user space processes
[611172.059319] Freezing user space processes completed (elapsed 0.001 seconds)
[611172.067920] OOM killer disabled.
[611172.072465] Freezing remaining freezable tasks
[611172.080332] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)
[611172.089724] printk: Suspending console(s) (use no_console_suspend to debug)
[611172.117126] serial 00:03: disabled
some other hardware get reconnected
[611203.136277] OOM killer enabled.
[611203.140637] Restarting tasks ...
[611203.141135] usb 1-8.1: USB disconnect, device number 7
[611203.141755] done.
[611203.155268] random: crng reseeded on system resumption
[611203.162059] PM: suspend exit
After investigation, I noticed that for the code block
if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem"))
ksft_exit_fail_msg("Failed to enter Suspend state\n");
The write will return -1 and errno is set to 16 (device busy).
It should be caused by the write function is not successfully returned
before the system suspend and the return value get messed when waking up.
As a result, It may be better to check the time passed of those few
instructions to determine whether the suspend is executed correctly for
it is pretty hard to execute those few lines for 5 seconds.
The timer to wake up the system is set to expire after 5 seconds and
no re-arm. If the timer remaining time is 0 second and 0 nano secomd,
it means the timer expired and wake the system up. Otherwise, the system
could be considered to enter the suspend state failed if there is any
remaining time.
After appling this patch, the test would not fail for it believes the
system does not go to suspend by mistake. It now could continue to the
rest part of the test after suspend.
Fixes: bfd092b8c2 ("selftests: breakpoint: add step_after_suspend_test")
Reported-by: Sinadin Shan <sinadin.shan@oracle.com>
Signed-off-by: Yifei Liu <yifei.l.liu@oracle.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Insert raw strings to prevent Python3 from interpreting string literals
as Unicode strings and "\d" as invalid escaped sequence.
Fix the warnings:
tools/testing/selftests/devices/probe/test_discoverable_devices.py:48:
SyntaxWarning: invalid escape sequence '\d' usb_controller_sysfs_dir =
"usb[\d]+"
tools/testing/selftests/devices/probe/test_discoverable_devices.py: 94:
SyntaxWarning: invalid escape sequence '\d' re_usb_version =
re.compile("PRODUCT=.*/(\d)/.*")
Fixes: dacf1d7a78 ("kselftest: Add test to verify probe of devices from discoverable buses")
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Alessandro Zanni <alessandro.zanni87@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.
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Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.12
A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.
To get the changes in:
db0d8a8434 ("arm64: errata: Enable the AC03_CPU_38 workaround for ampere1a")
That makes this perf source code to be rebuilt:
CC /tmp/build/perf-tools/util/arm-spe.o
The changes in the above patch add MIDR_AMPERE1A, used in arm-spe.c, so
probably we need to add it to that array? Or maybe we need to leave
this for later when this is all tested on those machines?
static const struct midr_range neoverse_spe[] = {
MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
{},
};
Mark Rutland recommended about arm-spe.c in a previous update to this
file:
"I would not touch this for now -- someone would have to go audit the
TRMs to check that those other cores have the same encoding, and I think
it'd be better to do that as a follow-up."
That addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: D Scott Phillips <scott@os.amperecomputing.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/lkml/ZvtFu7J-Awy2zuEJ@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
With 6d74e1e371 ("tools/lib/list_sort: remove redundant code for
cond_resched handling") we need to use the newly added hunk based
exceptions when comparing the copy we carry in tools/lib/ to the
original file, do it by adding the hunks that we know will be the
expected diff.
If at some point the original file is updated in other parts, then we
should flag and check the file for update.
Acked-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/lkml/20240930202136.16904-3-acme@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
With 6d74e1e371 ("tools/lib/list_sort: remove redundant code for
cond_resched handling") we end up with a multi-line variation in the
merge_final() implementation, one that the simple line based exceptions
we had so far can't cope.
Thus this check has been failing:
Warning: Kernel ABI header differences:
diff -u tools/lib/list_sort.c lib/list_sort.c
So add a new check routine that uses grep -vf to exclude some hunks that
we store in the tools/perf/check-header_ignore_hunks/ directory.
This first patch is just the new check routine, the next one will use it
to check lib/list_sort.c.
Acked-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/lkml/20240930202136.16904-2-acme@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fix build errors by adding __weak markers to BPF helper function
declarations in header files. This resolves static assertion failures
in scx_qmap.bpf.c and scx_flatcg.bpf.c where functions like
scx_bpf_dispatch_from_dsq_set_slice, scx_bpf_dispatch_from_dsq_set_vtime,
and scx_bpf_task_cgroup were missing the __weak attribute.
[1] https://lore.kernel.org/all/ZvvfUqRNM4-jYQzH@linux.ibm.com
Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
