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

From: Hannes Reinecke
Date: Mon Nov 16 2015 - 07:10:15 EST

On 11/13/2015 10:54 PM, Martin K. Petersen wrote:
>>>>>> "Lee" == Lee Duncan <lduncan@xxxxxxxx> 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.


Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +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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