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Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no management

From Hannes Reinecke <hare@suse.de>
Newsgroups linux.kernel
Subject Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no management
Date 2015-11-16 13:20 +0100
Message-ID <qvqVk-7cN-29@gated-at.bofh.it> (permalink)
References (2 earlier) <qjuL1-k6-33@gated-at.bofh.it> <qjz7Y-6RL-21@gated-at.bofh.it> <qjzrk-7fk-27@gated-at.bofh.it> <qu34L-2QO-39@gated-at.bofh.it> <quuy0-3qR-59@gated-at.bofh.it>
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On 11/13/2015 10:54 PM, Martin K. Petersen wrote:
>>>>>> "Lee" == Lee Duncan <lduncan@suse.com> writes:
> 
>>> Well, I'm a bit worried about the loss of a monotonically increasing
>>> host number from the debugging perspective.  Right now, if you look
>>> at any log, hostX always refers to one and only one incarnation
>>> throughout the system lifetime for any given value of X.
> 
> That's a feature that I would absolutely hate to lose. I spend a huge
> amount of time looking at system logs.
> 
Right. Then have it enabled via a modprobe parameters.

We actually had customers running into a host_no overflow due to
excessive host allocations and freeing done by iSCSI.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		               zSeries & Storage
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no  management Lee Duncan <lduncan@suse.com> - 2015-11-12 17:40 +0100
  Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no management "Martin K. Petersen" <martin.petersen@oracle.com> - 2015-11-13 23:00 +0100
    Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no  management Hannes Reinecke <hare@suse.de> - 2015-11-16 13:20 +0100
      Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no  management Lee Duncan <lduncan@suse.com> - 2015-11-16 22:50 +0100
        Re: [PATCHv4 1/1] SCSI: hosts: update to use ida_simple for host_no management "Martin K. Petersen" <martin.petersen@oracle.com> - 2015-11-18 00:30 +0100

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