linux/arch/ia64
Keshavamurthy Anil S eb3a72921c [PATCH] kprobes: fix race in recovery of reentrant probe
There is a window where a probe gets removed right after the probe is hit
on some different cpu.  In this case probe handlers can't find a matching
probe instance related to break address.  In this case we need to read the
original instruction at break address to see if that is not a break/int3
instruction and recover safely.

Previous code had a bug where we were not checking for the above race in
case of reentrant probes and the below patch fixes this race.

Tested on IA64, Powerpc, x86_64.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:12 -08:00
..
configs [IA64-SGI] change default_sn2 to NR_CPUS==1024 2005-12-16 10:51:29 -08:00
dig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hp [PATCH] ia64: fix-up schedule_timeout() usage 2005-11-07 07:53:56 -08:00
ia32 [PATCH] sanitize building of fs/compat_ioctl.c 2006-01-10 08:01:33 -08:00
kernel [PATCH] kprobes: fix race in recovery of reentrant probe 2006-01-11 18:42:12 -08:00
lib Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2005-10-28 21:09:26 -07:00
mm [IA64] Limit the maximum NODEDATA_ALIGN() offset 2005-12-06 09:10:37 -08:00
oprofile [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
pci [IA64] incorrect return from ia64_pci_legacy_write() 2006-01-03 11:16:17 -08:00
scripts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sn [PATCH] driver kill hotplug word from sn and others fix 2006-01-04 16:18:08 -08:00
Kconfig [PATCH] Fix Kconfig of DMA32 for ia64 2005-12-12 08:57:45 -08:00
Kconfig.debug [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
Makefile [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
defconfig [IA64] 4-level page tables 2005-11-11 09:37:29 -08:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.lds Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00