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    SubjectRe: 2.6.24-rc3-mm1: I/O error, system hangs
    On Wed, 21 Nov 2007 22:45:22 +0100
    Laurent Riffard <laurent.riffard@free.fr> wrote:

    > Le 21.11.2007 05:45, Andrew Morton a écrit :
    > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc3/2.6.24-rc3-mm1/
    >
    > Hello,
    >
    > My system hangs shortly after I logged in Gnome desktop. SysRq-W shows
    > that a bunch of task are blocked in "D" state, they seem to wait for
    > some I/O completion. I can try to hand-copy some data if requested.
    >
    > I found these messages in dmesg:
    >
    > ~$ grep -C2 end_request dmesg-2.6.24-rc3-mm1
    > EXT3-fs: mounted filesystem with ordered data mode.
    > sd 0:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
    > end_request: I/O error, dev sda, sector 16460
    > ReiserFS: sda7: found reiserfs format "3.6" with standard journal
    > ReiserFS: sda7: using ordered data mode
    > --
    > ReiserFS: sda7: Using r5 hash to sort names
    > sd 0:0:1:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
    > end_request: I/O error, dev sdb, sector 19632
    > sd 0:0:1:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
    > end_request: I/O error, dev sdb, sector 40037363
    > Adding 1048568k swap on /dev/mapper/vglinux1-lvswap. Priority:-1 extents:1 across:1048568k
    > lp0: using parport0 (interrupt-driven).
    >
    > These errors occur *only* with 2.6.24-rc3-mm1, they are 100% reproducible.
    > 2.6.24-rc3 and 2.6.24-rc2-mm1 are fine.
    >
    > Maybe something is broken in pata_via driver ?
    >

    Could be - libata-reimplement-ata_acpi_cbl_80wire-using-ata_acpi_gtm_xfermask.patch
    and pata_amd-pata_via-de-couple-programming-of-pio-mwdma-and-udma-timings.patch
    touch pata_via.c.
    -
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