Re: Panic on resume ACPI / ATA / UMA

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On Thursday 19 August 2004 12:17 pm, Sam Leffler wrote:
> On Wednesday 18 August 2004 10:30 pm, Anish Mistry wrote:
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> > With CURRENT as of a few hours ago (12:00 AM EST) I'm getting the
> > following panic below which then results in a reboot without creating a
> > core dump. How to repeat on my laptop:
> > 1) suspend (close lid)
> > 2) resume (open lid)
> > - - At this point the lid switch stops working so to suspend again...
> > 3) suspend (acpiconf -s 3)
> > 4) resume (press power button)
> >
> > ASL:
> > http://am-productions.biz/docs/littleguy.asl.gz
> > DMESG:
> > http://am-productions.biz/docs/dmesg.txt.gz
> >
> > After a few seconds the following appears:
> >
> > ad0: WARNING - WRITE_DMA interrupt was seen but timeout fired
> > LBA=12086925 ad0: WARNING - READ_DMA interrupt was seen but timeout fired
> > LBA=13004061 ad0: WARNING - READ_DMA interrupt was seen but timeout fired
> > LBA=13004061 acpi_cmbat1: battery initialization failed, giving up
> > ad0: WARNING - READ_DMA interrupt was seen but taskqueue stalled
> > LBA=13004061 Slab at 0xc15e4f70, freei 7 = 0.
> > panic: Duplicate free of item 0xc15e439c from zone 0xc0c44c60(g_bio)
>
> I hit identical behaviour w/o suspend-resume on upgrading an ibm t41p (it
> panics on boot).  The upgrade was, I believe, from an 8/10 kernel to an
> 8/18 kernel so some commit to the ata code in that timeframe is likely the
> cause. Looking through the logs this appears most likely:
>
> cvs commit: src/sys/dev/ata ata-all.c ata-lowlevel.c ata-queue.c
>
> From: SXren Schmidt <sos_at_FreeBSD.org>
> To: src-committers_at_FreeBSD.org, cvs-src_at_FreeBSD.org, cvs-all_at_FreeBSD.org
> Date: Monday 02:32:35 am
>
> sos         2004-08-16 09:32:35 UTC
>
>   FreeBSD src repository
>
>   Modified files:
>     sys/dev/ata          ata-all.c ata-lowlevel.c ata-queue.c
>   Log:
>   Improve (hopefully) on the workaround code for devices that doesn't
>   interrupt when command is done, ie some ATAPI CD drives with no
>   media loaded.
>
> Don't know if backing out this change requires undoing other stuff.
>
> 	Sam
Backing out that commit fixes the ATA panic on resume for me, but the lid 
switch still isn't working after resume which is an ACPI issue so I'll post 
that separately.
Søren, is there any other info that I need to provide than the dmesg above?


- -- 
Anish Mistry
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