From: "Jan Beulich" <JBeulich@novell.com>
To: <mingo@elte.hu>, <tglx@linutronix.de>, <hpa@zytor.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86: suppress stack overrun message for init_task
Date: Fri, 20 Nov 2009 14:00:14 +0000 [thread overview]
Message-ID: <4B06AEFE02000078000211F4@vpn.id2.novell.com> (raw)
init_task doesn't get its stack end location set to STACK_END_MAGIC,
and hence the message is confusing rather than helpful in this case.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
---
arch/x86/mm/fault.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.32-rc8/arch/x86/mm/fault.c
+++ 2.6.32-rc8-x86-init-task-stack/arch/x86/mm/fault.c
@@ -658,7 +658,7 @@ no_context(struct pt_regs *regs, unsigne
show_fault_oops(regs, error_code, address);
stackend = end_of_stack(tsk);
- if (*stackend != STACK_END_MAGIC)
+ if (tsk != &init_task && *stackend != STACK_END_MAGIC)
printk(KERN_ALERT "Thread overran stack, or stack corrupted\n");
tsk->thread.cr2 = address;
next reply other threads:[~2009-11-20 14:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 14:00 Jan Beulich [this message]
2009-11-21 10:17 ` [PATCH] x86: suppress stack overrun message for init_task Américo Wang
2009-11-21 10:31 ` Américo Wang
2009-11-23 8:41 ` Jan Beulich
2009-11-23 11:53 ` [tip:x86/debug] x86: Suppress " tip-bot for Jan Beulich
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