Date: Sun, 08 Feb 2004 23:45:13 -0700 From: Scott Long <scottl@freebsd.org> To: Peter Losher <Peter_Losher@isc.org> Cc: current@freebsd.org Subject: Re: Processes blocked on getblk or ufs Message-ID: <40272C79.6040708@freebsd.org> In-Reply-To: <20040209063331.A11582@farside.isc.org> References: <EE3D3FBAFFCAED448C21C398FDAD91AC0108FC@EBE1.gc.nat> <40247AE9.6070805@gddsn.org.cn> <20040207062617.GC49373@teleri.net> <20040209063331.A11582@farside.isc.org>
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Peter Losher wrote:
> On Sat, 7 Feb 2004, Chip Norkus wrote:
>
>
>>>woo, Scott's commit seem to fix this problem for me!
>>>
>>
>>I think I can throw a 'me too' in here. A build (make -j8 world) which
>>would reliably lock up one of my 2650s no longer does so. This is
>>extremely encouraging. :) Thanks so much for the hard work on this!
>
>
> Any chance this can be backported to RELENG_5_2? Because as it is now 5.2
> is unusable on Dell systems using the aac driver.
>
> -Peter
Can you try the attached patch?
Scott
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Index: aac.c
===================================================================
RCS file: /usr/ncvs/src/sys/dev/aac/aac.c,v
retrieving revision 1.81
diff -u -r1.81 aac.c
--- aac.c 9 Nov 2003 09:17:20 -0000 1.81
+++ aac.c 9 Feb 2004 06:41:57 -0000
@@ -1290,8 +1290,10 @@
cm->cm_flags |= AAC_CMD_MAPPED;
/* put the FIB on the outbound queue */
- if (aac_enqueue_fib(sc, cm->cm_queue, cm) == EBUSY)
+ if (aac_enqueue_fib(sc, cm->cm_queue, cm) == EBUSY) {
+ aac_unmap_command(cm);
aac_requeue_ready(cm);
+ }
return;
}
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