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From: Mark Lord <liml@rtr.ca>
To: "zhao, forrest" <forrest.zhao@intel.com>
Cc: Jeff Garzik <jeff@garzik.org>,
	htejun@gmail.com, linux-ide@vger.kernel.org
Subject: Re: [PATCH] Snoop SET FEATURES - WRITE CACHE ENABLE/DISABLE command
Date: Mon, 29 May 2006 07:29:50 -0400	[thread overview]
Message-ID: <447ADB2E.8030009@rtr.ca> (raw)
In-Reply-To: <1148884515.3466.12.camel@forrest26.sh.intel.com>

zhao, forrest wrote:
>
> Doing scsi_rescan_device() in SCSI EH thread caused my machine with 1
> logical CPU to hang(it stopped responding, user can't login locally or
> remotely, and it can only respond to "ping".)
>
> So I think scsi_rescan_device() is prohibited from being invoked in SCSI
> EH thread.

Yup, that's how it works, as I also discovered when the qstor.c driver
became the first user of the "new" SCSI EH logic two years ago.

Cheers

  reply	other threads:[~2006-05-29 11:29 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-25  9:02 [PATCH] Snoop SET FEATURES - WRITE CACHE ENABLE/DISABLE command zhao, forrest
2006-05-27  0:15 ` Jeff Garzik
2006-05-29  6:35   ` zhao, forrest
2006-05-29 11:29     ` Mark Lord [this message]
2006-05-29  9:08   ` Tejun Heo
2006-05-29  9:18     ` zhao, forrest
2006-05-29  9:46       ` Tejun Heo
2006-05-29  9:20     ` Jeff Garzik
2006-05-29  9:43       ` Tejun Heo
2006-05-30  3:57         ` Jeff Garzik
2006-05-30  4:41     ` Jeff Garzik
2006-05-30  4:50       ` Tejun Heo
2006-05-30  4:57         ` Jeff Garzik
2006-05-30  5:10           ` Tejun Heo
2006-05-30  5:08             ` zhao, forrest
2006-05-30  7:22               ` Tejun Heo

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