original_kernel/include
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
..
acpi
asm-alpha
asm-arm
asm-arm26
asm-cris
asm-frv
asm-generic
asm-h8300
asm-i386
asm-ia64
asm-m32r
asm-m68k
asm-m68knommu
asm-mips
asm-parisc
asm-powerpc
asm-ppc
asm-ppc64
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64
asm-xtensa
linux
math-emu
media
mtd
net
pcmcia
rdma
rxrpc
scsi
sound
video