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Message-ID: <9a8748490601061625q14d0ac04ica527821cf246427@mail.gmail.com>
Date: Sat, 7 Jan 2006 01:25:22 +0100
From: Jesper Juhl <jesper.juhl@gmail.com>
To: Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.15-mm1 - locks solid when starting KDE (EDAC errors)
Cc: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk,
       davej@codemonkey.org.uk, airlied@linux.ie
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On 1/6/06, Andrew Morton <akpm@osdl.org> wrote:
> Jesper Juhl <jesper.juhl@gmail.com> wrote:
>
> >  Reverted that one patch, then rebuild/reinstalled the kernel
> >  (with the same .config) and booted it - no change. It still locks up
> >  in the exact same spot.
> >  X starts & runs fine (sort of) since I can play around at the kdm
> >  login screen all I want, it's only once I actually login and KDE
> >  proper starts that it locks up.
>
> Oh bugger.  No serial console/netconsole or such?
>
> Or are you able log in and then quickly do the alt-ctrl-F1 thing, see if we
> get an oops?
>
I switched to tty1 right after logging in, and after a few seconds
(corresponding pretty well with the time it takes to hit the same spot
where it crashed all previous times) I got a lot of nice crash info
scrolling by.
Actually a *lot* scrolled by, a rough guestimate says some 4-6 (maybe
more) screens scrolled by, and since the box locks up solid I couldn't
scroll up to get at the initial parts :(  So all I have for you is the
final block - hand copied from the screen using pen and paper, so
please excuse any typos I may have made :

Bad page state in process 'kded'
page:c16a39e0 flags:0x00000000 mapping:00000000 mapcount:1 count:1
Trying to fix it up, but a reboot is needed
Backtrace:
 [<c0103e77>] dump_stack+0x17/0x20
 [<c0146f89>] bad_page+0x69/0x110
 [<c01473d2>] __free_pages_ok+0x82/0xd0
 [<c014818d>] __free_pages+0x3d/0x50
 [<c02a6663>] sg_page_free+0x23/0x30
 [<c02a5913>] sg_remove_scat+0x63/0xe0
 [<c02a62fd>] __sg_remove_sfp+0x4d/0xc0
 [<c02a6417>] sg_remove_sf+0xa7/0x120
 [<c02a26d6>] sg_release+0x46/0xc0
 [<c0163637>] __fput+0x167/0x1b0
 [<c01634bb>] fput+0x3b/0x50
 [<c0161bcc>] filp_close+0x3c/0x80
 [<c0161c79>] sys_close+0x69/0x90
 [<c0103009>] syscall_call+0x7/0xb
Hexdump:
000: 00 00 00 00 ff ff ff ff ff ff ff ff 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 ff ff ff ff ff ff ff ff 00 00 00 00
030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Hope that helps a bit even though it's the last and thus least
interresting block of info.

It never makes it to the logs, and as mentioned previously I don't
have another machine to capture on via netconsole or serial, so if you
have any good ideas as to how to capture it all, then I'm all ears.

--
Jesper Juhl <jesper.juhl@gmail.com>
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