kernel_optimize_test/arch
Michael Karcher d3023897b4 arch/sh: Check for kprobe trap number before trying to handle a kprobe trap
The DIE_TRAP notifier chain is run both for kprobe traps and for BUG/WARN
traps. The kprobe code assumes to be only called for
BREAKPOINT_INSTRUCTION, and concludes to have hit a concurrently removed
kprobe if it finds anything else at the faulting locations. This includes
TRAPA_BUG_OPCODE used for BUG and WARN.

The consequence is that kprobe_handler returns 1. This makes
kprobe_exceptions_notify return NOTIFY_STOP, and prevents handling the BUG
statement. This also prevents moving $pc away from the trap instruction,
so the system locks up in an endless loop

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2019-06-26 19:11:13 +09:00
..
alpha treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
arc treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
arm treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
arm64 SPDX update for 5.2-rc3, round 1 2019-05-31 08:34:32 -07:00
c6x treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
csky treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
h8300 treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
hexagon treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
ia64 SPDX update for 5.2-rc3, round 1 2019-05-31 08:34:32 -07:00
m68k treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
microblaze treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
mips treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
nds32 treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
nios2 treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
openrisc treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
parisc treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
powerpc treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
riscv treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
s390 s390 updates for 5.2-rc3 2019-05-31 10:49:25 -07:00
sh arch/sh: Check for kprobe trap number before trying to handle a kprobe trap 2019-06-26 19:11:13 +09:00
sparc treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
um treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
unicore32 treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
x86 Merge branch 'next-fixes-for-5.2-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2019-05-31 11:08:44 -07:00
xtensa treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
.gitignore
Kconfig Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-16 11:00:20 -07:00