Re: Linux 2.6.37-rc1 (scsi_debug: list corruption)

From: Randy Dunlap
Date: Thu Nov 04 2010 - 12:12:52 EST


On 11/03/10 19:25, Xiaotian Feng wrote:
> On Thu, Nov 4, 2010 at 7:20 AM, Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:
>>
>>
>> [ 102.555847] calling scsi_debug_init+0x0/0x704 [scsi_debug] @ 3337
>> Nov 3 16:06:12 control kernel: [ 102.555847] calling scsi_deb[ 102.622974] scsi_debug: host protection
>> [ 102.627513] scsi4 : scsi_debug, version 1.82 [20100324], dev_size_mb=8, opts=0x0
>> Nov 3 16:06:13 control kernel: [ 102.639095] initcall scsi_debug_init+0x0/0x704 [scsi_debug] returned 0 after 75039 usecs
>> Nov 3 16:06:13 [ 102.651072] ------------[ cut here ]------------
>> [ 102.657373] WARNING: at /local/linsrc/lnx-2637-rc1/lib/list_debug.c:26 __list_add+0x4d/0xa5()
>> [ 102.666012] Hardware name: OptiPlex GX620
>> [ 102.671396] list_add corruption. next->prev should be prev (ffffffff81ae5e50), but was 6b6b6b6b6b6b6b6b. (next=ffff88006c880590).
>
> This might be related with net rds percpu_counter corruption. Does
> following patch fix your issue?
> http://patchwork.ozlabs.org/patch/69939/

Yes, somehow that patch fixes it.

What good eyes you have.

thanks,
--
~Randy
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