From: Patrick Mansfield <patmans@us.ibm.com>
To: James Smart <James.Smart@Emulex.Com>
Cc: Michael Reed <mdr@sgi.com>, linux-scsi@vger.kernel.org
Subject: Re: [REPOST][PATCH] update max sdev block limit
Date: Tue, 16 May 2006 09:34:50 -0700 [thread overview]
Message-ID: <20060516163450.GA25071@us.ibm.com> (raw)
In-Reply-To: <4469F83F.4030407@emulex.com>
On Tue, May 16, 2006 at 12:05:19PM -0400, James Smart wrote:
> I don't mind making it bigger, especially as this is just a max, not the
> default value. I tried to keep it low, as I believe even 2 mins is a long
> time from the system's perspective. 10 minutes is forever (and remember
> the scan deadlock that we just worked through).
Yes, so add default and max settings instead of using the max as the default.
And I still don't see how the scsi timeout can (reliably) make it through
these block/unblocks. EH_RESET_TIMER doesn't freeze the scsi timeout like
you really need, just restarts it.
For example, with default sd timeout of 30, you could be one second into a
command, block for 28 seconds, unblock, and then still timeout.
-- Patrick Mansfield
next prev parent reply other threads:[~2006-05-16 16:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-11 14:42 [REPOST][PATCH] update max sdev block limit James Smart
2006-05-16 15:09 ` Michael Reed
2006-05-16 16:05 ` James Smart
2006-05-16 16:34 ` Patrick Mansfield [this message]
2006-05-16 18:14 ` James Smart
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