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    Subject'bad: scheduling while atomic!', preempt kernel, 2.6.1-test11, reading an apparently duff DVD-R
    I got the following when trying to mount a particular DVD-R on Linux
    2.6.0-test11, using an IDE DVD-RW drive, using SCSI emulation, with the
    preempt kernel option enabled, and taskfile I/O:
    (the middle bit was repeated several times):

    ide-scsi: reset called for 133
    bad: scheduling while atomic!
    Call Trace:
    [<c0119acc>] schedule+0x55c/0x570
    [<c01259ce>] schedule_timeout+0x5e/0xb0
    [<c0125960>] process_timeout+0x0/0x10
    [<c02add47>] idescsi_reset+0xf7/0x110
    [<c02a7b82>] scsi_try_bus_device_reset+0x52/0x90
    [<c02a7c1d>] scsi_eh_bus_device_reset+0x5d/0xe0
    [<c02a8368>] scsi_eh_ready_devs+0x28/0x70
    [<c02a84ef>] scsi_unjam_host+0xbf/0xd0
    [<c02a85da>] scsi_error_handler+0xda/0x120
    [<c02a8500>] scsi_error_handler+0x0/0x120
    [<c0107329>] kernel_thread_helper+0x5/0xc

    SCSI error: host 0 id 0 lun 0 return code = 6000000
    Sense class 0, sense error 0, extended sense 0
    mount: No medium found

    I also suspect that it is refusing to read valid DVD-Rs, but it could
    just be my drive. One of them successfully mounted and then complained
    about attempt to access beyond end of device, and another 6 or so
    refused to mount for the same reason.

    If you require any further information, please ask me.

    Software: Kernel 2.6.0-test11, configured as above, Debian sid current
    (glibc2.3 IIRC), mount version 2.12, athlon XP 2800+, ATI's fglrx module
    loaded, sound (emu10k1) as moule, AGP, and some networking and lm_sensors
    stuff (all from stock kernel).
    Matthew J Toseland -
    Freenet Project Official Codemonkey -
    ICTHUS - Nothing is impossible. Our Boss says so.
    [unhandled content-type:application/pgp-signature]
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