Re: [Xen-devel] block-detatch on 2.6.23.8 guest == WARNING: at block/ll_rw_blk.c:1579 blk_remove_plug()

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Oh, I see it's 2.6.23. I'm cc'ing Jeremy for this one.

 -- Keir


On 23/11/07 13:48, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> wrote:

> What kernel? The warning is that irqs are enabled, but in the kernel I just
> looked at irqs should definitely be disabled on that call path (by
> blkfront_closing()).
> 
>  -- Keir
> 
> On 23/11/07 13:38, "Christopher S. Aker" <caker@xxxxxxxxxxxx> wrote:
> 
>> Dom0:
>> root@dallas38:~# xm block-detach xencaker 51744
>> root@dallas38:~#
>> 
>> DomU:
>> WARNING: at block/ll_rw_blk.c:1579 blk_remove_plug()
>>   [<c035bed6>] blk_remove_plug+0x66/0x70
>>   [<c035bf58>] blk_stop_queue+0x8/0x20
>>   [<c039e429>] blkfront_closing+0x39/0x80
>>   [<c039ed77>] backend_changed+0x337/0x410
>>   [<c0161c7b>] kfree+0x7b/0xb0
>>   [<c037b987>] xenbus_gather+0x77/0xa0
>>   [<c037a4d3>] xenbus_read_driver_state+0x33/0x50
>>   [<c037cde2>] otherend_changed+0x92/0xa0
>>   [<c037bbab>] xenwatch_thread+0x6b/0x130
>>   [<c0132e90>] autoremove_wake_function+0x0/0x50
>>   [<c037bb40>] xenwatch_thread+0x0/0x130
>>   [<c0132cb4>] kthread+0x74/0x80
>>   [<c0132c40>] kthread+0x0/0x80
>>   [<c01073e7>] kernel_thread_helper+0x7/0x10
>>   =======================
>> 
>> -Chris
>> 
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> 
> 
> 
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