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Re: [PATCH] dump_stack on panic

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From: Arjan van de Ven <arjan@...>
To: Steven Rostedt <rostedt@...>
Cc: LKML <linux-kernel@...>, Linus Torvalds <torvalds@...>, Andrew Morton <akpm@...>, Ingo Molnar <mingo@...>, Christoph Hellwig <hch@...>, Daniel Walker <dwalker@...>
Subject: Re: [PATCH] dump_stack on panic
Date: Wednesday, October 31, 2007 - 10:19 am

On Tue, 30 Oct 2007 20:02:59 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:



panic() should never be used for kernel type of bugs, that's what
BUG_ON() is for. panic() tends to be for "your cpu melted" and "you
don't have a root fs".. nothing else.

for both of those cases, a stack trace actually hurts because it
scrolls the useful information off the screen instead.
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Messages in current thread:
[PATCH] dump_stack on panic, Steven Rostedt, (Tue Oct 30, 8:02 pm)
Re: [PATCH] dump_stack on panic, Arjan van de Ven, (Wed Oct 31, 10:19 am)
Re: [PATCH] dump_stack on panic, Steven Rostedt, (Wed Oct 31, 11:00 am)
Re: [PATCH] dump_stack on panic, Arjan van de Ven, (Wed Oct 31, 12:28 pm)
Re: [PATCH] dump_stack on panic, Steven Rostedt, (Wed Oct 31, 12:39 pm)
Re: [PATCH] dump_stack on panic, Andi Kleen, (Tue Oct 30, 8:14 pm)
Re: [PATCH] dump_stack on panic, Christoph Hellwig, (Wed Oct 31, 4:15 am)
Re: [PATCH] dump_stack on panic, Andi Kleen, (Wed Oct 31, 6:41 am)
Re: [PATCH] dump_stack on panic, Steven Rostedt, (Wed Oct 31, 6:58 am)
Re: [PATCH] dump_stack on panic, Andi Kleen, (Wed Oct 31, 7:17 am)
Re: [PATCH] dump_stack on panic, Steven Rostedt, (Wed Oct 31, 7:39 am)
Re: [PATCH] dump_stack on panic, Andi Kleen, (Wed Oct 31, 7:53 am)
Re: [PATCH] dump_stack on panic, Ingo Molnar, (Wed Oct 31, 6:17 am)
Re: [PATCH] dump_stack on panic, Steven Rostedt, (Tue Oct 30, 8:30 pm)