There's a lkml thread on this: http://marc.info/?t=130253369300004 But the synopsis is that some combination of delaying factors in the boot of this machine exposed a race in SCSI and block between teardown and reuse of SCSI devices. This two set series fixes the race. James --- James Bottomley (2): block: add proper state guards to __elv_next_request put stricter guards on queue dead checks block/blk.h | 3 ++- drivers/scsi/scsi_sysfs.c | 16 ++++++++-------- 2 files changed, 10 insertions(+), 9 deletions(-) -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html