From: Tejun Heo <teheo@suse.de>
To: Mark Lord <liml@rtr.ca>
Cc: Chris Webb <chris@arachsys.com>,
linux-scsi@vger.kernel.org, Ric Wheeler <rwheeler@redhat.com>,
Andrei Tanas <andrei@tanas.ca>, NeilBrown <neilb@suse.de>,
linux-kernel@vger.kernel.org,
IDE/ATA development list <linux-ide@vger.kernel.org>,
Jeff Garzik <jgarzik@redhat.com>, Mark Lord <mlord@pobox.com>
Subject: Re: MD/RAID time out writing superblock
Date: Mon, 14 Sep 2009 22:05:10 +0900 [thread overview]
Message-ID: <4AAE3F86.8090804@suse.de> (raw)
In-Reply-To: <4AAE3B9A.2060306@rtr.ca>
Mark Lord wrote:
> Tejun Heo wrote:
> ..
>> Oooh, another possibility is the above continuous IDENTIFY tries.
>> Doing things like that generally isn't a good idea because vendors
>> don't expect IDENTIFY to be mixed regularly with normal IOs and
>> firmwares aren't tested against that. Even smart commands sometimes
>> cause problems. So, finding out the thing which is obsessed with the
>> identity of the drive and stopping it might help.
> ..
>
> Bullpucky. That sort of thing, specifically with IDENTIFY,
> has never been an issue.
With SMART it has. I wouldn't be too surprised if some new firmware
chokes on repeated IDENTIFY mixed with stream of NCQ commands. It's
just not something people (including vendors) do regularly.
> I wonder if the IDENTIFY is actually coming from libata EH
> after something else failed ?
In that case, libata-eh would print "ataP.DD: failed to IDENTIFY
(blah, err_mask=0x%x\n" instead of the full TF dump.
Thanks.
--
tejun
next prev parent reply other threads:[~2009-09-14 13:05 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <004e01ca25e4$c11a54e0$434efea0$@ca>
[not found] ` <9cfb6af689a7010df166fdebb1ef516b.squirrel@neil.brown.name>
[not found] ` <4A948A82.4080901@redhat.com>
[not found] ` <b585ed9f13649050bbc984869d081315.squirrel@neil.brown.name>
[not found] ` <4A94905F.7050705@redhat.com>
[not found] ` <005101ca25f4$09006830$1b013890$@ca>
[not found] ` <4A94A0E6.4020401@redhat.com>
[not found] ` <005401ca25ff$9ac91cc0$d05b5640$@ca>
[not found] ` <4A950FA6.4020408@redhat.com>
[not found] ` <92cb16daad8278b0aa98125b9e1d057a@localhost>
[not found] ` <4A95573A.6090404@redhat.com>
2009-08-26 18:12 ` MD/RAID: what's wrong with sector 1953519935? Andrei Tanas
2009-08-27 0:07 ` Mark Lord
2009-08-27 1:37 ` Andrei Tanas
2009-08-27 2:33 ` Robert Hancock
[not found] ` <d086b110526f8bac2f562850dfc70b03@localhost>
2009-08-27 21:57 ` MD/RAID time out writing superblock Ric Wheeler
2009-08-31 8:10 ` Tejun Heo
2009-08-31 12:04 ` Ric Wheeler
2009-08-31 12:20 ` Tejun Heo
2009-09-07 11:44 ` Chris Webb
2009-09-07 11:59 ` Chris Webb
2009-09-09 12:02 ` Chris Webb
2009-09-14 7:41 ` Tejun Heo
2009-09-14 7:44 ` Tejun Heo
2009-09-14 12:48 ` Mark Lord
2009-09-14 13:05 ` Tejun Heo [this message]
2009-09-14 14:25 ` Mark Lord
2009-09-16 23:19 ` Chris Webb
2009-09-17 13:29 ` Mark Lord
2009-09-17 13:32 ` Mark Lord
2009-09-17 13:37 ` Chris Webb
2009-09-17 15:35 ` Tejun Heo
2009-09-17 16:16 ` Mark Lord
2009-09-17 16:17 ` Mark Lord
2009-09-18 17:05 ` Chris Webb
2009-09-21 10:26 ` Chris Webb
2009-09-21 19:47 ` Mark Lord
2009-09-22 6:16 ` Robert Hancock
2009-09-20 18:36 ` Robert Hancock
2009-09-14 13:11 ` Henrique de Moraes Holschuh
2009-09-14 13:24 ` Tejun Heo
2009-09-14 14:02 ` Henrique de Moraes Holschuh
2009-09-14 14:34 ` Tejun Heo
2009-09-14 13:14 ` Gabor Gombas
2009-09-07 16:55 ` Allan Wind
2009-09-07 23:26 ` Thomas Fjellstrom
2009-09-14 7:46 ` Tejun Heo
2009-09-14 21:13 ` Thomas Fjellstrom
2009-09-14 22:23 ` Tejun Heo
2009-09-16 22:28 ` Chris Webb
2009-09-16 23:47 ` Tejun Heo
2009-09-17 0:34 ` Neil Brown
2009-09-17 12:00 ` Chris Webb
2009-09-17 11:57 ` Chris Webb
2009-09-17 15:44 ` Tejun Heo
2009-09-17 16:36 ` Allan Wind
2009-09-18 0:16 ` Tejun Heo
2009-09-18 2:47 ` Allan Wind
2009-09-18 17:07 ` Chris Webb
2009-09-20 18:46 ` Robert Hancock
2009-09-21 0:02 ` Kyle Moffett
2009-09-17 13:35 ` Mark Lord
2009-09-17 15:47 ` Tejun Heo
2009-08-31 12:21 ` Mark Lord
2009-08-31 23:45 ` Mark Lord
2009-09-01 13:07 ` Andrei Tanas
2009-09-01 13:15 ` Mark Lord
2009-09-01 13:30 ` Tejun Heo
2009-09-01 13:47 ` Ric Wheeler
2009-09-01 14:18 ` Andrei Tanas
2009-09-02 21:58 ` Allan Wind
2009-09-04 19:39 ` Andrei Tanas
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