I am seeing a problem where IOs get stuck in SG for a _long_ time. The
initiator driver is our own, and we dont see any IOs in there that are
pending. We are running 2.4.30.
This is what I see in the proc file for SG. The act: acc to documentation
means:
act: mid level (adapter driver or device) has command.
Has anyone seen this problem? If yes, is there a patch for this problem?
>>> device=sg97 scsi4 chan=0 id=17 lun=0 em=0 sg_tablesize=64 excl=0
FD(1): timeout=60000ms bufflen=4096 (res)sgat=0 low_dma=0
cmd_q=1 f_packid=1 k_orphan=0 closed=0
act: id=1856404224 blen=8 t_o/elap=15000/54615000ms sgat=0 op=0x25
>>> device=sg98 scsi4 chan=0 id=18 lun=0 em=0 sg_tablesize=64 excl=0
FD(1): timeout=60000ms bufflen=4096 (res)sgat=0 low_dma=0
cmd_q=1 f_packid=1 k_orphan=0 closed=0
act: id=1883362756 blen=255 t_o/elap=15000/54474000ms sgat=0 op=0x1c
-- Mark
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