linux-kernel - Re: 2.6.19-rc6-rt4, changed yum repository

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Message-ID: <20061119211434.GA7538@elte.hu>
Date:	Sun, 19 Nov 2006 22:14:34 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Karsten Wiese <fzu@...gehoertderstaat.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.19-rc6-rt4, changed yum repository

* Karsten Wiese <fzu@...gehoertderstaat.de> wrote:

>  Call Trace:
>   [<c02d320f>] do_page_fault+0x2b9/0x552
>   [<c0102f22>] work_resched+0x6/0x20

> The  [<c0102f22>] work_resched+0x6/0x20 corresponds to
> 	mov    $0xfffff000,%ebp

> 0x000001c1 <work_resched+1>:    call   0x1c2 <work_resched+2>
> 0x000001c6 <work_resched+6>:    mov    $0xfffff000,%ebp

no, it's the call's return address that is work_resched+6.

to get a more usable snapshot of what this task is doing you'd need 
something like SysRq-P output. (that works on PREEMPT_RT only if you 
enable /proc/sys/kernel/debug_direct_keyboard - but careful, it might 
break if you generate too many interrupts - i usually only to do the 
SysRq-P and hope that it doesnt break then.)

	Ingo
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