From: Hannes Reinecke <hare@suse.de>
To: Michael Reed <mdr@sgi.com>
Cc: linux-scsi <linux-scsi@vger.kernel.org>,
Jeremy Higdon <jeremy@sgi.com>, Tony Ernst <tee@sgi.com>
Subject: Re: [PATCH] sd name space exhaustion causes system hang
Date: Tue, 21 Sep 2010 17:08:36 +0200 [thread overview]
Message-ID: <4C98CA74.7060500@suse.de> (raw)
In-Reply-To: <4C9789C6.7080601@sgi.com>
Michael Reed wrote:
> Following a site power outage which re-enabled all the ports on my FC
> switches, my system subsequently booted with far too many luns! I had
> let it run hoping it would make multi-user. It didn't. :( It hung solid
> after exhausting the last sd device, sdzzz, and attempting to create sdaaaa
> and beyond. I was unable to get a dump.
>
> Discovered using a 2.6.32.13 based system.
>
> Patch at the bottom corrects this by detecting when the last index is
> utilized and failing the sd probe of the device. Patch applies to
> scsi-misc-2.6.
>
Hmm. Shouldn't we rather use dynamic majors once we're over
SD_MAJORS? We do have enough space in the 'index' field and the name
is generated dynamically anyway ...
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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next prev parent reply other threads:[~2010-09-21 15:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-20 16:20 [PATCH] sd name space exhaustion causes system hang Michael Reed
2010-09-21 15:08 ` Hannes Reinecke [this message]
2010-09-21 15:58 ` Michael Reed
2010-09-21 17:16 ` Michael Reed
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