Date: Tue, 17 Aug 2004 01:33:38 +0200 From: Marc van Kempen <marc@bowtie.nl> To: Jake Khuon <khuon@NEEBU.Net> Cc: Marc van Kempen <marc@bowtie.nl> Subject: Re: ATA write-dma interrupt was seen but timeout fired LBA=53346288 Message-ID: <20040816233338.GA1987@host10.meck.bowtie.nl> In-Reply-To: <200408162319.i7GNJB0J027625@Espresso.NEEBU.Net> References: <200408160810.00366.marc@bowtie.nl> <200408162319.i7GNJB0J027625@Espresso.NEEBU.Net>
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On Mon, Aug 16, 2004 at 04:19:11PM -0700, Jake Khuon wrote:
> ### On Mon, 16 Aug 2004 08:10:00 +0200, Marc van Kempen <marc@bowtie.nl>
> ### casually decided to expound upon freebsd-current@freebsd.org the
> ### following thoughts about "ATA write-dma interrupt was seen but timeout
> ### fired LBA=53346288":
>
> MvK> After I resume I get these warnings:
> MvK>
> MvK> ATA write-dma interrupt was seen but timeout fired LBA=53346288
> MvK> ATA write-dma interrupt was seen but timeout fired LBA=53346288
> MvK> ATA write-dma interrupt was seen but taskqueue stalled LBA=53346288
> MvK>
> MvK> This basically results in the harddisk being unaccessible and the systems
> MvK> hangs eventually. Rebooting does not work because the harddisk can't be
> MvK> synced, etc.
> MvK>
> MvK> Does anyone know what is going on?
>
> I had this same problem on my IBM T30 although I'm using APM. I couldn't
> get ACPI suspend to play nice with XFree86 and GLX.
>
try:
hw.syscons.sc_no_suspend_vtswitch=1
hw.acpi.reset_video=0
> It was very frustrating to not have reliable suspend. However, I think I
> might have solved it. Do you have a CDROM (or similar) device attached?
>
Yep!
> I added "atacontrol detach 1" to /etc/rc.suspend to detach the CDROM drive
> before suspending. Likewise, I added a complementary "atacontrol attach 1"
> in /etc/rc.resume. Since doing that, I have not seen the interrupt
> problems. I do notice now that shortly before the re-attachment kicks in
> after coming back from suspend, I will see:
>
> Aug 16 15:45:02 Mocha kernel: stray irq15
>
I see exactly the same thing (from some quick testing), manually attaching
detaching the cdrom drive (actually dvd/cdrom-writer) makes suspend/resume
work reliably!
> I'm not sure if this is normal or is an indication of some weird IRQ storm.
> At anyrate, detaching and reattaching during the suspend/resume cycle seems
> to damp it and stablised the whole ATA subsystem.
>
The only problem left is that with acpi the file /etc/rc.{suspend,resume}
don't seem to get called.
Cheers,
Marc.
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