On 2013/7/29 11:02, Li Zefan wrote: > On 2013/7/29 9:33, zhangwei(Jovi) wrote: >> commit 11034ae9c20f4057a6127fc965906417978e69b2 upstream >> > > I don't think the stable versions that contain this fix have been released, > so I think you should ask Greg to drop the patch and resend the patch with > this fix folded. > Unfortunately not, the bug already released in 3.0.88 and 3.4.55.
>> Initialization of variable irq_flags and pc was missed when backport >> 11034ae9c to linux-3.0.y and linux-3.4.y, my fault. >> >> Signed-off-by: zhangwei(Jovi) <[email protected]> >> --- >> kernel/trace/trace_syscalls.c | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c >> index e675182..c9ce09a 100644 >> --- a/kernel/trace/trace_syscalls.c >> +++ b/kernel/trace/trace_syscalls.c >> @@ -358,6 +358,9 @@ void ftrace_syscall_exit(void *ignore, struct pt_regs >> *regs, long ret) >> if (!sys_data) >> return; >> >> + local_save_flags(irq_flags); >> + pc = preempt_count(); >> + >> event = trace_current_buffer_lock_reserve(&buffer, >> sys_data->exit_event->event.type, sizeof(*entry), >> irq_flags, pc); >> > > > . > -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
