linux-kernel - Re:Re: kernel BUG at mm/rmap.c:669 (during localegen)

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Date:	Thu, 01 May 2008 20:19:08 +0200
From:	devzero@....de
To:	anilatx@...il.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re:Re: kernel BUG at mm/rmap.c:669 (during localegen)

so, you are absolutely sure that this happens without nvidia driver?

if not, rename the nvidia kernel module and try again.....

>(but this case leaves no logs becouse logging is down too)

kernel logging should still be there (dmesg), but it may not go to /var/log/messages.
you may start syslogd/klogd manually in that runlevel






List:       linux-kernel
Subject:    Re:Re: kernel BUG at mm/rmap.c:669 (during localegen)
From:       PaweÅ <anilatx () gmail ! com>
Date:       2008-05-01 13:54:56
Message-ID: 4819CBB0.8010208 () gmail ! com
[Download message RAW]

The problem is reproducible, as I wrote, also while booting through 
init=/bin/bash parameter(and in init 1, but with hang instead of reboot) 
so before loading any modules or nvidia drivers(but this case leaves no 
logs becouse logging is down too)
I mentioned first and last line as commented, just to ensure that it's 
everything about this symptome(timestamps suggest that)

Hugh Dickins wrote:
> On Thu, 1 May 2008, PaweÅ wrote:
>   
>> Every time I try to generate locales computer reboots or hangs. To ensure
>> that's not matter of graphDrivers I checked also in runlevel 1 and
>> "init=/bin/bash".
>>
>> Linux debby 2.6.25 #1 PREEMPT Mon Apr 28 15:18:31 CEST 2008 x86_64 GNU/Linux
>> gcc (GCC) 4.2.3 (Debian 4.2.3-3)
>>
>> [kern.log:]
>> //May  1 11:20:09 debby kernel: NVRM: bad caching on address
>> 0xffff81003a910000: actual 0x173 != expected 0x17b
>>
>> May  1 11:25:44 debby kernel: Eeek! page_mapcount(page) went negative! (-1)
>> May  1 11:25:44 debby kernel:   page pfn = 257d2
>> May  1 11:25:44 debby kernel:   page->flags = 2200000000001c
>> May  1 11:25:44 debby kernel:   page->count = 0
>> May  1 11:25:44 debby kernel:   page->mapping = 0000000000000000
>> May  1 11:25:44 debby kernel:   vma->vm_ops = 0x0
>> May  1 11:25:44 debby kernel: ------------[ cut here ]------------
>> May  1 11:25:44 debby kernel: kernel BUG at mm/rmap.c:669!
>> May  1 11:25:44 debby kernel: invalid opcode: 0000 [1] PREEMPT
>> May  1 11:25:44 debby kernel: CPU 0
>> May  1 11:25:44 debby kernel: Modules linked in: nvidia(P) ...
>> May  1 11:25:44 debby kernel: Pid: 3007, comm: localedef Tainted: P
>> 2.6.25 #1
>> May  1 11:25:44 debby kernel: RIP: 0010:[<ffffffff80270c74>]
>> [<ffffffff80270c74>] page_remove_rmap+0x164/0x180
>>     
>
> Sorry, you'll have to ask Nvidia to help you with this: we don't
> know what their driver is up to, and don't have any "NVRM" errors in
> 2.6.25 source; they should be grateful for your reproducible test case.
>
> Hugh



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