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Date:      Mon, 14 Apr 1997 07:20:08 -0700 (PDT)
From:      Frank Mayhar <frank@exit.com>
To:        freebsd-bugs@freebsd.org
Subject:   More problems with 2.1.7-STABLE versus 2940W.
Message-ID:  <199704141420.HAA00990@exit.com>

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This time I have evidence.

I believe this happened during the run of news.daily.

Apr 14 04:48:00 exit /kernel: ahc0: ahc_intr - referenced scb not valid during SELTO scb(255)
Apr 14 04:48:00 exit /kernel: ahc0: ahc_intr - referenced scb not valid during SELTO scb(255)
Apr 14 04:48:00 exit last message repeated 22 times
Apr 14 04:48:00 exit /kernel: sd3(ahc0:8:0): SCB 0x4 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x18
Apr 14 04:48:00 exit /kernel: SEQADDR == 0x5
Apr 14 04:48:00 exit /kernel: sd3(ahc0:8:0): SCB 4: Immediate reset.  Flags = 0x1
Apr 14 04:48:00 exit /kernel: panic: Waiting List inconsistency. SCB index == 255, yet numscbs == 5.

This is the panic.  Then, after it rebooted, I see:

Apr 14 04:48:08 exit /kernel: WARNING: / was not properly dismounted.
Apr 14 04:48:08 exit /kernel: ahc0: WARNING no command for scb 255 (cmdcmplt)
Apr 14 04:48:08 exit /kernel: QOUTCNT == 1
Apr 14 04:48:08 exit /kernel: sd1(ahc0:1:0): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0
Apr 14 04:48:09 exit /kernel: SEQADDR == 0x6
Apr 14 04:48:09 exit /kernel: sd1(ahc0:1:0): Queueing an Abort SCB
Apr 14 04:48:09 exit /kernel: sd1(ahc0:1:0): Abort Message Sent
Apr 14 04:48:10 exit /kernel: sd1(ahc0:1:0): SCB 3 - Abort Completed.
Apr 14 04:48:10 exit /kernel: sd1(ahc0:1:0): no longer in timeout
Apr 14 04:48:10 exit /kernel: ahc0: WARNING no command for scb 255 (cmdcmplt)
Apr 14 04:48:10 exit /kernel: QOUTCNT == 1
Apr 14 04:48:10 exit /kernel: sd1(ahc0:1:0): SCB 0x3 - timed out while idle, LASTPHASE == 0x1, SCSISIGI == 0x0
Apr 14 04:48:10 exit /kernel: SEQADDR == 0x4
Apr 14 04:48:11 exit /kernel: sd1(ahc0:1:0): Queueing an Abort SCB
Apr 14 04:48:11 exit /kernel: sd1(ahc0:1:0): Abort Message Sent
Apr 14 04:48:11 exit /kernel: sd1(ahc0:1:0): SCB 3 - Abort Completed.
Apr 14 04:48:11 exit /kernel: sd1(ahc0:1:0): no longer in timeout

sd3 is my fast/wide drive, with a news partition on it.  sd1 is just an
older run-of-the-mill 1.2 Gig SCSI 2 drive.

I'm going back to my 10/11 kernel again.
-- 
Frank Mayhar frank@exit.com



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