linux-kernel - Re: use after free on ctrl-alt-del

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Message-ID: <20060802122226.GK7601@ucw.cz>
Date:	Wed, 2 Aug 2006 12:22:27 +0000
From:	Pavel Machek <pavel@...e.cz>
To:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: use after free on ctrl-alt-del

Hi!

> With 2.6.18-rc2-git6, I see this when I hit ctrl-alt-del
> on one of my machines (oddly on no others though).
> 
> BUG: unable to handle kernel paging request at virtual address 6b6b6b6b
>  printing eip:
> 6b6b6b6b
> *pde = 00000000
> Oops: 0000 [#2]    <-- The other oopsen were from SATA, more bugs to follow.
> eax: dfa4d49c ebx: 6b6b6b6b ecx: 00000000 edx: 00000001
> esi: dfa4d49c edi: 00000000 ebp: c1858e7c esp: c1858e68
> ...
> Call Trace:
> show_stack_log_lvl+0x8a
> show_registers
> die
> do_page_fault
> error_code
> blocking_notifier_call_chain
> kernel_restart_prepare
> kernek_restart
> sys_reboot
> syscall_call

Some driver perhaps? Could you try it with minimal drivers?

-- 
Thanks for all the (sleeping) penguins.
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