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    Subject2.0.30: Panic and FS corruption after sound card access
    I had an application sending 16 bit stereo data to /dev/audio at 32kHz
    (OSS was using two fragments of 32Kb). At a certain point it stopped
    with following messages in syslog:

    Aug 6 14:50:42 pris kernel: Sound: DMA (output) timed out - IRQ/DRQ
    config error?
    Aug 6 14:52:08 pris kernel: Sound: DMA (output) timed out - IRQ/DRQ
    config error?

    Then, when trying to load something into the GUS RAM:

    Aug 6 14:55:05 pris kernel: GUS: DMA Transfer timed out
    Aug 6 14:55:34 pris last message repeated 29 times

    I rebooted the machine and got a kernel panic (log excerpts in the end
    of this message). Bringing the system up with floppy showed severe
    corruption in the IDE hard disk. It can be a hardware fault, but I'm not
    sure.

    The system appears to be OK now.

    ---

    Sound Driver:3.5.4-960630 (Tue Jun 10 12:53:20 EST 1997 root,
    Linux pris 2.0.27 #1 Tue Jun 10 12:09:33 EST 1997 i486)
    Kernel: Linux pris 2.0.30 #1 Tue Jun 10 12:55:01 EST 1997 i486
    Config options: 280008

    Installed drivers:
    Type 4: Gravis Ultrasound
    Type 25: GUS PnP

    Card config:
    Gravis Ultrasound at 0x220 irq 7 drq 7,7

    Audio devices:
    0: Gravis UltraSound

    ---

    Aug 6 15:01:20 pris kernel: Linux version 2.0.30 (root@pris) (gcc
    version 2.7.2) #1 Tue Jun 10 12:55:01 EST 1997
    Aug 6 15:01:20 pris kernel: hda: WDC AC32500H, 2441MB w/128kB Cache,
    LBA, CHS=4960/16/63
    Aug 6 15:01:20 pris kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    Aug 6 15:01:20 pris kernel: ne.c:v1.10 9/23/94 Donald Becker
    (becker@cesdis.gsfc.nasa.gov)
    Aug 6 15:01:20 pris kernel: NE*000 ethercard probe at 0x300: 00 80 ad
    21 d0 39
    Aug 6 15:01:20 pris kernel: eth0: NE2000 found at 0x300, using IRQ 12.
    <more boot stuff here>
    Aug 6 15:01:20 pris kernel: scsi0 : Adaptec AHA274x/284x/294x
    (EISA/VLB/PCI-Fast SCSI) 4.0/3.2/4.0
    Aug 6 15:01:20 pris kernel: scsi : 1 host.
    Aug 6 15:01:20 pris kernel: scsi0: Target 0, channel A, now synchronous
    at 4.0MHz, offset 15.
    Aug 6 15:01:20 pris kernel: Vendor: TOSHIBA Model: CD-ROM
    XM-3601TA Rev: 0265
    Aug 6 15:01:20 pris kernel: Type:
    CD-ROM ANSI SCSI revision: 02
    Aug 6 15:01:20 pris kernel: Detected scsi CD-ROM sr0 at scsi0, channel
    0, id 0, lun 0
    Aug 6 15:01:25 pris kernel: hda: read_intr: status=0x59 { DriveReady
    SeekComplete DataRequest Error }
    Aug 6 15:01:25 pris kernel: hda: read_intr: error=0x40 {
    UncorrectableError }, LBAsect=2404577, sector=671762
    Aug 6 15:01:25 pris kernel: end_request: I/O error, dev 03:08, sector
    671762
    Aug 6 15:01:25 pris kernel: Kernel panic: EXT2-fs panic (device 03:08):
    ext2_read_inode: unable to read i-node bloc
    k - inode=84321, block=335881

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