From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>, Jason Baron <jbaron@redhat.com>,
Masami Hiramatsu <mhiramat@redhat.com>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org, stable@kernel.org
Subject: [PATCH 2.6.35/stable] TP_STORE_SIGINFO(SEND_SIG_FORCED) == OOPS
Date: Thu, 3 Jun 2010 23:34:09 +0200 [thread overview]
Message-ID: <20100603213409.GA8307@redhat.com> (raw)
BUG: unable to handle kernel NULL pointer dereference at 0000000000000006
IP: [<ffffffff8107bd37>] ftrace_raw_event_signal_generate+0x87/0x140
TP_STORE_SIGINFO() forgets about SEND_SIG_FORCED, fix.
We should probably export is_si_special() and change TP_STORE_SIGINFO()
to use it.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
include/trace/events/signal.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 34-rc1/include/trace/events/signal.h~TP_STORE_SIGINFO 2009-12-18 19:05:38.000000000 +0100
+++ 34-rc1/include/trace/events/signal.h 2010-06-03 23:24:07.000000000 +0200
@@ -10,7 +10,8 @@
#define TP_STORE_SIGINFO(__entry, info) \
do { \
- if (info == SEND_SIG_NOINFO) { \
+ if (info == SEND_SIG_NOINFO || \
+ info == SEND_SIG_FORCED) { \
__entry->errno = 0; \
__entry->code = SI_USER; \
} else if (info == SEND_SIG_PRIV) { \
next reply other threads:[~2010-06-03 21:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-03 21:34 Oleg Nesterov [this message]
2010-06-03 22:35 ` [PATCH 2.6.35/stable] TP_STORE_SIGINFO(SEND_SIG_FORCED) == OOPS Roland McGrath
2010-06-08 21:07 ` Frederic Weisbecker
2010-06-09 5:24 ` [tip:perf/urgent] tracing: Fix null pointer deref with SEND_SIG_FORCED tip-bot for Oleg Nesterov
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