A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

[PATCH] kprobes: fix bug when probed on task and isr functions

Browse source 
This patch fixes a race condition where in system used to hang or sometime
crash within minutes when kprobes are inserted on ISR routine and a task
routine.

The fix has been stress tested on i386, ia64, pp64 and on x86_64.  To
reproduce the problem insert kprobes on schedule() and do_IRQ() functions
and you should see hang or system crash.

Signed-off-by: Anil S Keshavamurthy <[email protected]>
Signed-off-by: Ananth N Mavinakayanahalli <[email protected]>
Acked-by: Prasanna S Panchamukhi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Keshavamurthy Anil S 2005-09-06 15:19:35 -07:00 • committed by Linus Torvalds
commit deac66ae45
7 changed files with 55 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/asm-ppc64/kprobes.h
View file

@ -42,6 +42,9 @@ typedef unsigned int kprobe_opcode_t;
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)((func_descr_t *)pentry)
#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \
IS_TWI(instr) || IS_TDI(instr))
#define ARCH_SUPPORTS_KRETPROBES
void kretprobe_trampoline(void);