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Subject: Re: qstor driver -> irq 193: nobody cared
From: Alberto Alonso <alberto@ggsys.net>
To: Mark Lord <lkml@rtr.ca>
Cc: linux-kernel@vger.kernel.org
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Organization: Global Gate Systems LLC.
Date: Fri, 17 Nov 2006 15:42:22 -0600
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FYI: trying with just the first patch didn't work. I got
the usual:

irq 185: nobody cared (try booting with the "irqpoll" option)
 <c013e19a> __report_bad_irq+0x2a/0xa0  <c013d970> handle_IRQ_event
+0x30/0x70
 <c013e2b0> note_interrupt+0x80/0xf0  <c013da8c> __do_IRQ+0xdc/0xf0
 <c0105799> do_IRQ+0x19/0x30  <c010391a> common_interrupt+0x1a/0x20
 <c0100d91> default_idle+0x41/0x70  <c0100e60> cpu_idle+0x80/0x90
handlers:
[<c0301300>] (qs_intr+0x0/0x230)
Disabling IRQ #185

Interestingly enough this is the first time I see it outside
of irq 193, not that it matter though.

I am going to try now with the second patch instead.

Alberto


On Thu, 2006-11-16 at 08:53 -0500, Mark Lord wrote:
> Alberto Alonso wrote:
> > Sorry for the long delay, I've been called on too
> > many issues at work this week.
> > 
> > Anyway, the patch basically made the drives not usable.
> 
> Mmm.. Okay, thanks for helping track this down.
> 
> It appears that this got broken when the ATA_TFLAG_POLLING
> got introduced into libata, replacing previous checks of ATA_NIEN.
> Or maybe even before that.  Not many of us have qstor cards!
> 
> Speaking of which, I'll dig my own qstor card out of mothballs soon,
> and work out a proper fix for it soon-ish.
> 
> In the meanwhile, could you take a clean kernel, and apply the first
> attached patch (qstor_spurious_1.patch), and see if it fixes things.
> 
> If not, then you can instead apply the second patch (qstor_spurious_kludge.patch)
> and your problems should disappear.  But I cannot actually push that rubbish
> upstream, so a "proper" fix will have to come later.
> 
> Cheers
-- 
Alberto Alonso                        Global Gate Systems LLC.
(512) 351-7233                        http://www.ggsys.net
Hardware, consulting, sysadmin, monitoring and remote backups

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