linux-kernel - [PATCH] x86_64: Fix dump

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Message-ID: <87k604rshj.fsf@duaron.myhome.or.jp>
Date:	Thu, 04 Jan 2007 01:21:28 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Linus Torvalds <torvalds@...l.org>, Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] x86_64: Fix dump_trace()

If caller passed the tsk, we should use it to validate a stack ptr.
Otherwise, sysrq-t and other debugging stuff doesn't work.

Signed-off-by: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
---

 arch/x86_64/kernel/traps.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN arch/x86_64/kernel/traps.c~x86_64-fix-show_trace arch/x86_64/kernel/traps.c
--- linux-2.6/arch/x86_64/kernel/traps.c~x86_64-fix-show_trace	2007-01-04 00:28:02.000000000 +0900
+++ linux-2.6-hirofumi/arch/x86_64/kernel/traps.c	2007-01-04 00:28:02.000000000 +0900
@@ -319,7 +319,7 @@ void dump_trace(struct task_struct *tsk,
 	/*
 	 * This handles the process stack:
 	 */
-	tinfo = current_thread_info();
+	tinfo = task_thread_info(tsk);
 	HANDLE_STACK (valid_stack_ptr(tinfo, stack));
 #undef HANDLE_STACK
 	put_cpu();
_

-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
-
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