Re: [PATCH v8 0/10] More device removal fixes

[Bart Van Assche]

On 02/06/13 23:31, Joe Lawrence wrote:
crash> list scsi_device.siblings -H 0xffff8808513a4290 -s scsi_device
ffff880851232520
struct scsi_device {
   is_visible = 0x1,
   sdev_state = SDEV_DEL,
}
ffff880851235388
struct scsi_device {
   is_visible = 0x1,
   sdev_state = SDEV_DEL,
}

This is interesting. This probably means that one or more threads got 
stuck in __scsi_remove_device(). If you still have the crash dump 
available it would be appreciated if you could verify whether this is 
correct. If so, there might be an issue in the mpt2sas driver where 
scsi_done() does not get invoked for all outstanding commands after a 
surprise removal.

Bart.
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