Re: Core scsi layer crashes in 2.6.8.1

From: Alan Cox (alan_at_lxorguk.ukuu.org.uk)
Date: 09/29/04

  • Next message: Paul Fulghum: "Re: Serial driver hangs" 
    To: James Bottomley <James.Bottomley@SteelEye.com>
Date:	Wed, 29 Sep 2004 14:24:10 +0100

    On Mer, 2004-09-29 at 15:11, James Bottomley wrote:
    > What was the oops?
    >
    > I have a theory that we should be taking a device reference before
    > waking up the error handler, otherwise host removal can race with error
    > handling.

    The sequence I scribbled down from the console was

            Illegal state transition Cancel->Offline
            Badness in scsi_device_set_state
                    scsi_device_set_state
                    scsi_unjam_host
                    scsi_error_handler
     
            badness in kref_get
                    kobject_get, get_device, scsi_request_fn
                    blk_insert_request, scsi_queue_insert
                    scsi_eh_flush_done_q, scsi_unjam_host
                    scsi_error_handler
     
            OOPS scsi_device_dev_release
                    device_release
                    kobject_cleanup
                    kobject_release
                    kref_put
                    scsi_request_fn

    Alan

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  • Next message: Paul Fulghum: "Re: Serial driver hangs"

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