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    SubjectRe: 2.6.18-rc3-mm2 - ext3 locking issue?
    On Thu, Aug 10, 2006 at 08:27:49AM -0700, Andrew Morton wrote:
    > On Thu, 10 Aug 2006 13:39:11 +0159
    > Jiri Slaby <jirislaby@gmail.com> wrote:
    >
    > > Valdis.Kletnieks@vt.edu wrote:
    > > > On Wed, 09 Aug 2006 16:43:20 EDT, Valdis.Kletnieks@vt.edu said:
    > > >
    > > >>> Usually this means that there's an IO request in flight and it got lost
    > > >>> somewhere. Device driver bug, IO scheduler bug, etc. Conceivably a
    > > >>> lost interrupt (hardware bug, PCI setup bug, etc).
    > > >
    > > >> Aug 9 14:30:24 turing-police kernel: [ 3535.720000] end_request: I/O error, dev fd0, sector 0
    > > >
    > > > Red herring. yum just wedged again, this time with no reference to floppy drive.
    > > > Same traceback. Anybody have anything to suggest before I start playing
    > > > hunt-the-wumpus with a -mm bisection?
    > >
    > > Hmm, I have the accurately same problem...
    > > yum + CFQ + BLK_DEV_PIIX + nothing odd in dmesg

    oooh, same setup and same trace here, but no yum, see some screenshots
    here:
    http://oioio.altervista.org/linux/dsc03448.jpg
    http://oioio.altervista.org/linux/dsc03449.jpg

    The use case for me was simply:
    - boot (in single user for the 2 shots)
    - suspend
    - resume
    - wait some seconds and do anything that accesses the disk

    [...]
    > Is yum the only process which was stuck in D state?

    in my case anything accessing the disk, leading to lockup shortly

    > If so, I'd still be expecting a device driver/iosched bug.
    >
    > If not, it's probably a vfs/fs deadlock.

    I reverted the full git-block.patch and I'm now using rc3-mm2 since
    then suspending to ram, disk and using my laptop for daily stuff:

    reboot system boot 2.6.18-rc3-mm2-1 Tue Aug 8 00:02 - 19:30 (2+19:27)

    PS: my previous pasts are here: http://lkml.org/lkml/2006/8/7/264
    probably an unfortunate Cc list :)

    --
    mattia
    :wq!
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