* xenblkd/744 error
@ 2005-09-20 14:15 Ted Kaczmarek
2005-09-20 14:52 ` Keir Fraser
0 siblings, 1 reply; 6+ messages in thread
From: Ted Kaczmarek @ 2005-09-20 14:15 UTC (permalink / raw)
To: xen-devel List
xen_changeset : Mon Sep 19 13:10:20 2005 +0000 d1cbfaf804d9
Tyan 2462 SMP, FC4
I am getting this error consistently, any value here?
[ 4560.965671] BUG: using smp_processor_id() in preemptible [00000001]
code: xenblkd/744
[ 4560.975172] caller is ide_wait_stat+0xee/0x2c0
[ 4560.980495] [<c0109a0e>] dump_stack+0x1e/0x20
[ 4560.985869] [<c02300ed>] smp_processor_id+0xad/0xb0
[ 4560.992254] [<c02b089e>] ide_wait_stat+0xee/0x2c0
[ 4560.997912] [<c02b5f8f>] pre_task_out_intr+0x3f/0x150
[ 4561.003953] [<c02af07a>] start_request+0x23a/0x2a0
[ 4561.010074] [<c02af37d>] ide_do_request+0x26d/0x470
[ 4561.015874] [<c02af5a5>] do_ide_request+0x25/0x30
[ 4561.021498] [<c026612d>] generic_unplug_device+0x1d/0x30
[ 4561.027842] [<c02a36ea>] blkio_schedule+0x12a/0x160
[ 4561.034176] [<c0107291>] kernel_thread_helper+0x5/0x14
[ 4567.480590] printk: 2 messages suppressed.
Been having a nasty problem where all domU hose with
Unable to read memory/target. The more domU's the quicker the problem
happens.
Regards,
Ted
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xenblkd/744 error
2005-09-20 14:15 xenblkd/744 error Ted Kaczmarek
@ 2005-09-20 14:52 ` Keir Fraser
2005-09-20 15:16 ` Ted Kaczmarek
0 siblings, 1 reply; 6+ messages in thread
From: Keir Fraser @ 2005-09-20 14:52 UTC (permalink / raw)
To: Ted Kaczmarek; +Cc: xen-devel List
On 20 Sep 2005, at 15:15, Ted Kaczmarek wrote:
> I am getting this error consistently, any value here?
>
> [ 4560.965671] BUG: using smp_processor_id() in preemptible [00000001]
> code: xenblkd/744
I checked in a fix for this just a moment ago.
-- Keir
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xenblkd/744 error
2005-09-20 14:52 ` Keir Fraser
@ 2005-09-20 15:16 ` Ted Kaczmarek
2005-09-20 16:21 ` Keir Fraser
0 siblings, 1 reply; 6+ messages in thread
From: Ted Kaczmarek @ 2005-09-20 15:16 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel List
On Tue, 2005-09-20 at 15:52 +0100, Keir Fraser wrote:
> On 20 Sep 2005, at 15:15, Ted Kaczmarek wrote:
>
> > I am getting this error consistently, any value here?
> >
> > [ 4560.965671] BUG: using smp_processor_id() in preemptible [00000001]
> > code: xenblkd/744
>
> I checked in a fix for this just a moment ago.
>
> -- Keir
>
>
Thanks a bunch, could this be the root cause of my
"Unable to read memory/target" error?
This has been killing my testing.
Regards,
Ted
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xenblkd/744 error
2005-09-20 15:16 ` Ted Kaczmarek
@ 2005-09-20 16:21 ` Keir Fraser
2005-09-20 16:27 ` Vincent Hanquez
0 siblings, 1 reply; 6+ messages in thread
From: Keir Fraser @ 2005-09-20 16:21 UTC (permalink / raw)
To: Ted Kaczmarek; +Cc: xen-devel List
On 20 Sep 2005, at 16:16, Ted Kaczmarek wrote:
> Thanks a bunch, could this be the root cause of my
> "Unable to read memory/target" error?
>
> This has been killing my testing.
Sadly not. I have no idea where that message is coming from. Sounds
like a challenge for someone who knows more about xenbus/xenstore. :-)
-- Keir
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xenblkd/744 error
2005-09-20 16:21 ` Keir Fraser
@ 2005-09-20 16:27 ` Vincent Hanquez
0 siblings, 0 replies; 6+ messages in thread
From: Vincent Hanquez @ 2005-09-20 16:27 UTC (permalink / raw)
To: Keir Fraser; +Cc: Ted Kaczmarek, xen-devel List
On Tue, Sep 20, 2005 at 05:21:13PM +0100, Keir Fraser wrote:
> Sadly not. I have no idea where that message is coming from. Sounds
> like a challenge for someone who knows more about xenbus/xenstore. :-)
I have the same errors as well,
it seems like the directory memory or the node target in this directory
doesn't exist when trying to read it in the balloon
--
Vincent Hanquez
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: xenblkd/744 error
@ 2005-09-20 23:06 Neugebauer, Rolf
0 siblings, 0 replies; 6+ messages in thread
From: Neugebauer, Rolf @ 2005-09-20 23:06 UTC (permalink / raw)
To: Vincent Hanquez, Keir Fraser; +Cc: Ted Kaczmarek, xen-devel List
> -----Original Message-----
> From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-
> bounces@lists.xensource.com] On Behalf Of Vincent Hanquez
> Sent: 20 September 2005 17:28
> To: Keir Fraser
> Cc: Ted Kaczmarek; xen-devel List
> Subject: Re: [Xen-devel] xenblkd/744 error
>
> On Tue, Sep 20, 2005 at 05:21:13PM +0100, Keir Fraser wrote:
> > Sadly not. I have no idea where that message is coming from. Sounds
> > like a challenge for someone who knows more about xenbus/xenstore.
:-)
>
> I have the same errors as well,
> it seems like the directory memory or the node target in this
directory
> doesn't exist when trying to read it in the balloon
I see other store "corruption" ie entries disappearing as well.
Sometimes uuid/domid entries for dom0 for example, especially after
domain destruction. The refresh/reaper is probably a bit too eager :(
I think part of the problem is that currently xend uses a mixture of
xstransact style state and xsobj and friends to store information. I
don't understand the xsobj stuff enough to debug this (Christian is
aware of this)
rolf
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-09-20 23:06 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2005-09-20 14:15 xenblkd/744 error Ted Kaczmarek
2005-09-20 14:52 ` Keir Fraser
2005-09-20 15:16 ` Ted Kaczmarek
2005-09-20 16:21 ` Keir Fraser
2005-09-20 16:27 ` Vincent Hanquez
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2005-09-20 23:06 Neugebauer, Rolf
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