From: Jim Ramsay <jim.ramsay@gmail.com>
To: Linux-ide <linux-ide@vger.kernel.org>
Cc: Jeff Garzik <jgarzik@pobox.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] Add disk hotswap support to libata RESEND #2
Date: Tue, 23 Aug 2005 13:41:09 -0600 [thread overview]
Message-ID: <4789af9e050823124140eb924f@mail.gmail.com> (raw)
In-Reply-To: <355e5e5e05080103021a8239df@mail.gmail.com>
On 8/1/05, Lukasz Kosewski <lkosewsk@gmail.com> wrote:
> Patch 03: Have sata_promise use the perfect, flawless API from the
> previous patch
Hmmm... Flawless :)
Then I must have found an undocumented feature! I've applied this set
of patches to a 2.6.11 kernel (with few problems) and ran into a bunch
of "scheduling while atomic" errors when hotplugging a drive, culprit
being probably scsi_sysfs.c where scsi_remove_device locks a mutex, or
perhaps when it then calls class_device_unregister, which does a
'down_write'.
Perhaps we need some sort of workqueue for hotplug requests to get
them out of the atomic interrupt handler context where they originate?
--
Jim Ramsay
"Me fail English? That's unpossible!"
next prev parent reply other threads:[~2005-08-23 19:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-01 10:02 [PATCH 3/3] Add disk hotswap support to libata RESEND #2 Lukasz Kosewski
2005-08-23 19:41 ` Jim Ramsay [this message]
2005-08-23 22:43 ` Jim Ramsay
2005-08-23 22:56 ` George Anzinger
2005-08-24 1:20 ` Stefan Richter
2005-08-24 14:03 ` Lukasz Kosewski
2005-08-24 15:11 ` Jim Ramsay
2005-08-24 16:12 ` Jim Ramsay
[not found] ` <4789af9e0508291223435f174@mail.gmail.com>
2005-08-29 19:45 ` Jim Ramsay
2005-09-06 19:02 ` Jim Ramsay
2005-09-15 4:40 ` Lukasz Kosewski
2005-09-16 16:11 ` Mark Lord
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