Re: 2.4.1-ac4 aic7xxx driver, heads-up re possible problem

Doug Ledford (dledford@redhat.com)
Wed, 07 Feb 2001 15:30:23 -0500


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glouis@dynamicro.on.ca wrote:
>
> Last night I installed 2.4.1-ac4 remotely on two machines that had been
> running -ac3. Neither was essential to production so I rebooted
> remotely to try it. One of them works fine. The other hangs at boot
> with an interrupt synch problem (sorry, but I'm away from the office and
> have only sketchy secondhand info; will reproduce Friday and supply
> details if needed). The contents of /proc/scsi/aic7xxx/0 follow for
> each (the machine that failed has been rebooted with -ac3).

> ===========================
> 2.4.1-ac4 fails to access disk, said to be an "interrupt synch
> problem," 2.4.1-ac3 running:
>
> Adaptec AIC7xxx driver version: 5.2.1/5.2.0
> Compile Options:
> TCQ Enabled By Default : Disabled
> AIC7XXX_PROC_STATS : Enabled
>
> Adapter Configuration:
> SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
> Ultra Wide Controller at PCI 0/11/0

There was a minor bug in the aic7xxx.seq script (actually, it was more like I
failed to take into account a limitation of the parsing program that parses
the binary sequencer code). It resulting in invalid instructions getting
downloaded to every controller prior to a 7895. The attached patch should
solve people's problems with this. (Note, this patch wasn't made against a
full linux tree, so cd into driver/scsi and use patch -p1 in order to apply
it).

-- 

Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford Please check my web site for aic7xxx updates/answers before e-mailing me about problems --------------F3B9707B025F1B28AE372D0F Content-Type: text/plain; charset=us-ascii; name="seq.diff" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="seq.diff"

diff -U 3 -rN scsi.save/aic7xxx/aic7xxx.seq scsi/aic7xxx/aic7xxx.seq --- scsi.save/aic7xxx/aic7xxx.seq Wed Feb 7 15:07:28 2001 +++ scsi/aic7xxx/aic7xxx.seq Wed Feb 7 15:21:06 2001 @@ -531,7 +531,8 @@ - } else { /* NOT Ultra2 */ + } /* NOT Ultra2 */ + if ((p->features & AHC_ULTRA2) == 0) { diff -U 3 -rN scsi.save/aic7xxx/aic7xxx_seq.c scsi/aic7xxx/aic7xxx_seq.c --- scsi.save/aic7xxx/aic7xxx_seq.c Wed Feb 7 15:07:28 2001 +++ scsi/aic7xxx/aic7xxx_seq.c Wed Feb 7 15:21:06 2001 @@ -776,10 +776,10 @@ { aic7xxx_patch0_func, 88, 1, 1 }, { aic7xxx_patch7_func, 103, 1, 2 }, { aic7xxx_patch0_func, 104, 2, 1 }, - { aic7xxx_patch7_func, 108, 84, 15 }, + { aic7xxx_patch7_func, 108, 84, 3 }, { aic7xxx_patch9_func, 177, 1, 1 }, { aic7xxx_patch9_func, 178, 4, 1 }, - { aic7xxx_patch0_func, 192, 72, 12 }, + { aic7xxx_patch10_func, 192, 72, 12 }, { aic7xxx_patch1_func, 192, 1, 2 }, { aic7xxx_patch0_func, 193, 2, 1 }, { aic7xxx_patch1_func, 200, 1, 1 },

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