Re: Hang in wait_on_inode with SMP 2.1.87

David Woodhouse (Dave@imladris.demon.co.uk)
Mon, 23 Feb 1998 21:20:30 +0000


I've just had a very similar hang with an Adaptec 2940UW on an Intel SMP box.

The two processes were "scan +lists/kernel" (from MH), and were stuck, IIRC, in
wait_on_page.

I was writing a CD at the time, so I didn't do much to rock the boat - as soon
as it finished writing, I rebooted with Alt-SysRq-U B

I don't think anything was written to disk after the lockup occurred, but the
CD was OK.

Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) No active SCB for reconnecting target - Issuing BUS DEVICE RESET.
Feb 23 19:38:00 dwmw2 kernel: <4> SAVED_TCL=0x0, ARG_1=0x8, SEQADDR=0x114
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Reset device, active_scb 8
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 0/chan A)
Feb 23 19:38:00 dwmw2 last message repeated 2 times
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 4/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 0/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 4/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Bus Device Reset delivered, 1 SCBs aborted.
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Aborting scb 8
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Reset device, active_scb 8
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 0/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 4/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>scsi0: (targ 0/chan A) matching scb to (targ 4/chan A)
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Bus Device Reset delivered, 1 SCBs aborted.
Feb 23 19:38:00 dwmw2 kernel: <4>(scsi0:0:0) Aborting scb 8

I'll upgrade to aic7xxx-5.0.5 and see if that helps me.

---- ---- ----
David Woodhouse, Robinson College, CB3 9AN, England. (+44) 0976 658355
Dave@imladris.demon.co.uk http://dwmw2.robinson.cam.ac.uk
finger pgp@dwmw2.robinson.cam.ac.uk for PGP key.

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