Re: 2.6.10-rc2-mm3 [was: Re: 2.6.9-rc2: "kernel BUG at mm/rmap.c:473!"]
From: Hugh Dickins (hugh_at_veritas.com)
Date: 12/01/04
- Previous message: Jeremy Fitzhardinge: "build problem with 2.6.10-rc2-mm4: undefined reference to `acpi_boot_table_init'"
- Next in thread: Andrea Arcangeli: "Re: 2.6.10-rc2-mm3 [was: Re: 2.6.9-rc2: "kernel BUG at mm/rmap.c:473!"]"
- Reply: Andrea Arcangeli: "Re: 2.6.10-rc2-mm3 [was: Re: 2.6.9-rc2: "kernel BUG at mm/rmap.c:473!"]"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Wed, 1 Dec 2004 00:49:39 +0000 (GMT) To: Benoit Boissinot <bboissin@gmail.com>
On Tue, 30 Nov 2004, Benoit Boissinot wrote:
>
> I had the same BUG_ON with 2.6.10-rc2-mm3 while transcoding a video.
>
> kernel BUG at mm/rmap.c:479!
> CPU: 0
> EIP: 0060:[<c01454a4>] Not tainted VLI
> EFLAGS: 00010286 (2.6.10-rc2-mm3-arakou)
> EIP is at page_remove_rmap+0x34/0x40
...
> BUG: atomic counter underflow at:
> [<c0103b57>] dump_stack+0x17/0x20
> [<c011a51e>] do_exit+0x39e/0x420
> [<c0103efc>] die+0x13c/0x140
...
> Bad page state at prep_new_page (in process 'mpd', page c17712c0)
> flags:0x40020114 mapping:00000000 mapcount:-1 count:0
> Backtrace:
> [<c0103b57>] dump_stack+0x17/0x20
> [<c0136352>] bad_page+0x72/0xb0
> [<c013669b>] prep_new_page+0x2b/0x80
Thanks for the report. I'm still searching for something useful
to say. I've recently spent several days trying to deduce what's
behind such page_remove_rmap BUGs, but not yet come up with any
convincing hypothesis. Yours is the first I've seen without
CONFIG_PREEMPT, so that's another potential culprit exonerated.
Some things which _might_ help me to shed more light on your case:
outputs of "objdump -rd" on your mm/memory.o, mm/rmap.o, kernel/exit.o;
and "cat /proc/$(pidof transcode)/maps" while transcode is running.
The atomic counter underflow in do_exit does suggest corruption
elsewhere than in transcode's page table (though I'm not at all
sure that is corrupt) - as always, it is worth giving memtest86
a thorough run to check your memory.
Thanks,
Hugh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Jeremy Fitzhardinge: "build problem with 2.6.10-rc2-mm4: undefined reference to `acpi_boot_table_init'"
- Next in thread: Andrea Arcangeli: "Re: 2.6.10-rc2-mm3 [was: Re: 2.6.9-rc2: "kernel BUG at mm/rmap.c:473!"]"
- Reply: Andrea Arcangeli: "Re: 2.6.10-rc2-mm3 [was: Re: 2.6.9-rc2: "kernel BUG at mm/rmap.c:473!"]"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
