Re: 5.2.1 p9 --> 5.2 current 20040708 upgrade ATA_IDENTIFY no interrupt

From: jhandvil (jhandvil_at_tampabay.rr.com)
Date: 07/11/04

  • Next message: Max Laier: "Re: CDRW causes Thinkpad T41 to panic" 
    To: Bruce M Simpson <bms@spc.org>
Date: Sun, 11 Jul 2004 15:12:10 -0400

    On Sunday 11 July 2004 02:29 pm, Bruce M Simpson wrote:
    > On Sun, Jul 11, 2004 at 10:43:21AM -0400, jhandvil wrote:
    > > > > ata0-master: FAILURE - ATA_IDENTIFY no interrupt
    > > > > ata0-master: FAILURE - ATA_IDENTIFY no interrupt
    > > > > Mounting root from ufs:/dev/ad0s1a
    > > > > setrootbyname failed
    > > > > ffs_mountroot: can't find rootvp
    > > > > Root mount failed: 6
    >
    > This is a very, very similar situation to what I've just observed on
    > several IBM ThinkPad T41 systems with the Panasonic UJDA755 CDRW module!
    >
    > Please post as much information about your hardware configuration as you
    > can; please also see my recent posts to -mobile for descriptions of how
    > to pull a backtrace in the situation where your machine faults and drops
    > into the debugger without the ability to 'call doadump'.
    >
    > I now strongly suspect we have a bug in ata(4). I will backtrack through
    > green@'s recent commits concerning atapicam as I think this may tell
    > part of the story (he identified some other issues and suggested fixes,
    > I have a hunch he is on a similar track).
    >
    > I'm in a debugging session now and will post further results of my findings
    > on -mobile.

    Excellent! I added a panic immediately after the error in ata_completed so
    that I can perform the backtrace. I will post the response to the group as
    soon as I rebuild the kernel and reboot.

    Thanks,
    Justin

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  • Next message: Max Laier: "Re: CDRW causes Thinkpad T41 to panic"

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