Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-12 22:23:55 +00:00
Code Issues Packages Projects Releases Wiki Activity
ac7c8e6b6d
linux/drivers
History
Heiko Stuebner ac7c8e6b6d crypto: rockchip - fix possible deadlock 
Lockdep warns about a possible deadlock resulting from the use of regular
spin_locks:

=================================
[ INFO: inconsistent lock state ]
4.4.0-rc2+ #2724 Not tainted
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/0/3 [HC0[0]:SC1[1]:HE1:SE0] takes:
(&(&crypto_info->lock)->rlock){+.?...}, at: [<bf14a65c>] rk_crypto_tasklet_cb+0x24/0xb4 [rk_crypto]
{SOFTIRQ-ON-W} state was registered at:
  [<c007f4ac>] lock_acquire+0x178/0x218
  [<c0759bac>] _raw_spin_lock+0x54/0x64
  [<bf14af88>] rk_handle_req+0x7c/0xbc [rk_crypto]
  [<bf14b040>] rk_des_ecb_encrypt+0x2c/0x30 [rk_crypto]
  [<bf14b05c>] rk_aes_ecb_encrypt+0x18/0x1c [rk_crypto]
  [<c028c820>] skcipher_encrypt_ablkcipher+0x64/0x68
  [<c0290770>] __test_skcipher+0x2a8/0x8dc
  [<c0292e94>] test_skcipher+0x38/0xc4
  [<c0292fb0>] alg_test_skcipher+0x90/0xb0
  [<c0292158>] alg_test+0x1e8/0x280
  [<c028f6f4>] cryptomgr_test+0x34/0x54
  [<c004bbe8>] kthread+0xf4/0x10c
  [<c0010010>] ret_from_fork+0x14/0x24
irq event stamp: 10672
hardirqs last  enabled at (10672): [<c002fac8>] tasklet_action+0x48/0x104
hardirqs last disabled at (10671): [<c002faa0>] tasklet_action+0x20/0x104
softirqs last  enabled at (10658): [<c002ef84>] __do_softirq+0x358/0x49c
softirqs last disabled at (10669): [<c002f108>] run_ksoftirqd+0x40/0x80

other info that might help us debug this:
Possible unsafe locking scenario:

    CPU0
    ----
  lock(&(&crypto_info->lock)->rlock);
  <Interrupt>
    lock(&(&crypto_info->lock)->rlock);

 *** DEADLOCK ***

Fix this by moving to irq-disabling spinlocks.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-12-04 22:21:48 +08:00
..
accessibility
acpi More power management and ACPI updates for v4.4-rc1 2015-11-12 11:50:33 -08:00
amba
android
ata SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
atm
auxdisplay
base More power management and ACPI updates for v4.4-rc1 2015-11-12 11:50:33 -08:00
bcma
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2015-11-13 09:24:40 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
bus ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
cdrom
char hwrng: core - sleep interruptible in read 2015-12-04 22:21:45 +08:00
clk h8300 update for v4.4 2015-11-12 15:26:39 -08:00
clocksource Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
connector mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
cpufreq More power management and ACPI updates for v4.4-rc1 2015-11-12 11:50:33 -08:00
cpuidle
crypto crypto: rockchip - fix possible deadlock 2015-12-04 22:21:48 +08:00
dca
devfreq
dio
dma dmaengine updates for 4.4-rc1 2015-11-10 10:05:17 -08:00
dma-buf dma-buf/fence: add fence_wait_any_timeout function v2 2015-10-30 01:16:16 -04:00
edac asm-generic cleanups 2015-11-06 14:22:15 -08:00
eisa
extcon
firewire IEEE 1394 subsystem patch: 2015-11-11 10:21:34 -08:00
firmware ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
fmc
fpga fpga: socfpga: Fix check of return value of devm_request_irq 2015-10-29 15:20:25 -07:00
gpio asm-generic cleanups 2015-11-06 14:22:15 -08:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-11-13 09:12:38 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2015-11-07 12:49:27 -08:00
hsi hsi: controllers:remove redundant code 2015-10-30 16:10:40 +01:00
hv drivers/hv: share Hyper-V SynIC constants with userspace 2015-11-04 16:24:33 +01:00
hwmon ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
hwspinlock
hwtracing Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
i2c Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2015-11-10 11:58:25 -08:00
ide mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
idle
iio spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
infiniband SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-11-13 21:41:14 -08:00
iommu mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
ipack
irqchip Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
isdn TTY/Serial driver patches for 4.4-rc1 2015-11-04 21:35:12 -08:00
leds spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
lguest
lightnvm block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
macintosh
mailbox mailbox: mailbox-test: avoid reading iomem twice 2015-11-04 14:03:04 +05:30
mcb mcb: Destroy IDA on module unload 2015-10-29 09:02:16 +09:00
md Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
media netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported 2015-11-10 16:32:11 -08:00
memory ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
memstick
message SCSI queue for 4.4. 2015-11-12 07:06:18 -05:00
mfd asm-generic cleanups 2015-11-06 14:22:15 -08:00
misc Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
mmc spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
mtd This pull request includes the following UBI/UBIFS changes: 2015-11-10 16:35:06 -08:00
net Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
ntb NTB: fix 32-bit compiler warning 2015-11-08 16:24:43 -05:00
nubus
nvdimm libnvdimm, pmem: fix size trim in pmem_direct_access() 2015-11-12 09:55:23 -08:00
nvme NVMe: add support for Apple NVMe controller 2015-11-11 09:36:57 -07:00
nvmem
of More power management and ACPI updates for v4.4-rc1 2015-11-12 11:50:33 -08:00
oprofile
parisc pci: remove pci_dma_supported 2015-11-10 16:32:11 -08:00
parport
pci More power management and ACPI updates for v4.4-rc1 2015-11-12 11:50:33 -08:00
pcmcia
perf arm64 updates for 4.4: 2015-11-04 14:47:13 -08:00
phy phy: qcom-ufs: fix build error when the component is built as a module 2015-11-09 17:44:24 -05:00
pinctrl This is the bulk of GPIO changes for v4.4: 2015-11-02 12:59:12 -08:00
platform platform/chrome: Branch for v4.4 2015-11-13 21:53:18 -08:00
pnp
power - New Device Support 2015-11-06 10:23:50 -08:00
powercap
pps
ps3
ptp
pwm pwm: Changes for v4.4-rc1 2015-11-11 09:16:10 -08:00
rapidio
ras
regulator spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
remoteproc
reset
rpmsg
rtc RTC for 4.4 2015-11-10 10:01:21 -08:00
s390 block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
sbus
scsi SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
sfi
sh
sn
soc ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
spi Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/ti-qspi' and 'spi/topic/txx9' into spi-next 2015-11-04 11:02:16 +00:00
spmi char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
ssb
staging Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
target SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
tc
thermal thermal: rockchip: fix compile error 2015-11-11 19:52:39 -08:00
thunderbolt
tty asm-generic cleanups 2015-11-06 14:22:15 -08:00
uio
usb SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
uwb driver core update for 4.4-rc1 2015-11-04 21:50:37 -08:00
vfio VFIO updates for v4.4-rc1 2015-11-13 17:05:32 -08:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
video fbdev changes for 4.4 2015-11-10 10:00:09 -08:00
virt
virtio
vlynq
vme char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
w1 power supply and reset changes for the v4.4 series 2015-11-05 12:28:15 -08:00
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2015-11-10 10:11:12 -08:00
xen Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-11-13 20:04:17 -08:00
zorro
Kconfig char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
Makefile char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00