linux/lib
Ingo Molnar 8446f1d391 [PATCH] detect soft lockups
This patch adds a new kernel debug feature: CONFIG_DETECT_SOFTLOCKUP.

When enabled then per-CPU watchdog threads are started, which try to run
once per second.  If they get delayed for more than 10 seconds then a
callback from the timer interrupt detects this condition and prints out a
warning message and a stack dump (once per lockup incident).  The feature
is otherwise non-intrusive, it doesnt try to unlock the box in any way, it
only gets the debug info out, automatically, and on all CPUs affected by
the lockup.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:17 -07:00
..
reed_solomon Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zlib_deflate Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zlib_inflate Revert unnecessary zlib_inflate/inftrees.c fix 2005-08-17 13:07:28 -07:00
bitmap.c [PATCH] Use ALIGN to remove duplicate code 2005-06-25 16:25:02 -07:00
bust_spinlocks.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cmdline.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crc32.c [PATCH] crc32.c typo fix 2005-08-07 10:00:40 -07:00
crc32defs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crc-ccitt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ctype.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dec_and_lock.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
div64.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dump_stack.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
errno.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
extable.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
find_next_bit.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gen_crc32table.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genalloc.c [PATCH] ia64 uncached alloc 2005-06-21 18:46:18 -07:00
halfmd4.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
idr.c [PATCH] Document idr_get_new_above() semantics, update inotify 2005-08-26 11:32:57 -07:00
inflate.c [PATCH] Update in-kernel zlib routines 2005-08-05 16:23:21 -07:00
int_sqrt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iomap.c [PATCH] add Big Endian variants of ioread/iowrite 2005-04-16 15:25:54 -07:00
Kconfig [LIB]: Make TEXTSEARCH_BM plain tristate like the others 2005-08-29 16:11:11 -07:00
Kconfig.debug [PATCH] detect soft lockups 2005-09-07 16:57:17 -07:00
kernel_lock.c [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
klist.c [PATCH] klist: fix klist to have the same klist_add semantics as list_head 2005-09-05 16:03:13 -07:00
kobject_uevent.c [NETLINK]: Add "groups" argument to netlink_kernel_create 2005-08-29 16:01:11 -07:00
kobject.c [PATCH] Make kobject's name be const char * 2005-06-20 15:15:00 -07:00
kref.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
libcrc32c.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] unify x86/x86-64 semaphore code 2005-09-05 00:06:14 -07:00
parser.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prio_tree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
radix-tree.c [PATCH] mostly_read data section 2005-07-07 18:23:46 -07:00
rbtree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwsem-spinlock.c [PATCH] use smp_mb/wmb/rmb where possible 2005-05-01 08:58:47 -07:00
rwsem.c [PATCH] use smp_mb/wmb/rmb where possible 2005-05-01 08:58:47 -07:00
semaphore-sleepers.c [PATCH] unify x86/x86-64 semaphore code 2005-09-05 00:06:14 -07:00
sha1.c [PATCH] lib/sha1.c: fix sparse warning 2005-06-25 16:25:02 -07:00
smp_processor_id.c [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
sort.c [PATCH] fix lib/sort regression test 2005-05-05 16:36:50 -07:00
string.c [PATCH] documentation for strncpy() 2005-05-05 16:36:50 -07:00
textsearch.c [LIB]: Textsearch infrastructure. 2005-06-23 20:49:30 -07:00
ts_bm.c [LIB]: Boyer-Moore extension for textsearch infrastructure strike #2 2005-08-29 16:11:06 -07:00
ts_fsm.c [LIB]: Naive finite state machine based textsearch 2005-06-23 20:59:16 -07:00
ts_kmp.c [LIB]: Knuth-Morris-Pratt textsearch algorithm 2005-06-23 20:58:37 -07:00
vsprintf.c [PATCH] %t... in vsnprintf 2005-08-23 18:43:46 -07:00