Re: [PATCH] sd name space exhaustion causes system hang

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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@xxxxxxx			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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