Date: Sat, 9 Oct 1999 23:21:25 -0700 From: "David O'Brien" <obrien@NUXI.com> To: scsi@freebsd.org Subject: CAM hanging and not reseting properly on 2940UW Message-ID: <19991009232125.A693@dragon.nuxi.com>
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My system has hung twice tonight -- running X, and find a rouge process is stating stuff in / and causes one of the CDROM drives to spin up and things "hang". I Ctrl-Alt-F1 to get to the real console and see: (cd1:ahc0:0:5:0): SCB 0x16 - timed out in datain phase, SEQADDR == 0x110 (cd1:ahc0:0:5:0): BDR message in message buffer (cd1:ahc0:0:5:0): SCB 0x16 - timed out in datain phase, SEQADDR == 0x10f (cd1:ahc0:0:5:0): no longer in timeout, status = 34b ahc0: Issued Channel A Bus Reset. 17SCBs aborted Then the machine is hung. Most all keyboard input is ignored in the console. I can "scroll lock" and scroll back to see console messages. Hit "scroll lock" again, and no input accepted. I cannot Ctrl-Alt-ESC to enter the debugger. Nor is Ctrl-Alt-Del accepted. I can how however Alt-Fx to enter other virtual consoles and keyboard input is accpted -- that is until what is typed causes the a disk access. Shouldn't CAM reset the SCSI bus and recover from the above errors? I tried powering down & up the CDROM drive and that didn't change anything. Is this a bug, or just life? FreeBSD 4.0-CURRENT #20: Sun Oct 3 14:30:16 PDT 1999 ... ahc0: <Adaptec 2940 Ultra SCSI adapter> irq 15 at device 9.0 on pci0 ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs (this controlers has BIOS version 1.23) ncr0: <ncr 53c875j fast20 wide scsi> irq 11 at device 10.0 on pci0 ... Waiting 2 seconds for SCSI devices to settle sa0 at ncr0 bus 0 target 5 lun 0 sa0: <HP HP35480A 1009> Removable Sequential Access SCSI-2 device sa0: 5.000MB/s transfers (5.000MHz, offset 8) da22 at ncr0 bus 0 target 2 lun 0 da22: <DEC DSP3210S 435E> Fixed Direct Access SCSI-2 device da22: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled da22: 2049MB (4197520 512 byte sectors: 255H 63S/T 261C) da23 at ncr0 bus 0 target 3 lun 0 da23: <HP 2.13 GB 2nd 0582> Fixed Direct Access SCSI-2 device da23: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled da23: 2033MB (4165272 512 byte sectors: 255H 63S/T 259C) da21 at ncr0 bus 0 target 1 lun 0 da21: <SEAGATE ST32550N 0021> Fixed Direct Access SCSI-2 device da21: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled da21: 2047MB (4194058 512 byte sectors: 255H 63S/T 261C) da9 at ahc0 bus 0 target 9 lun 0 da9: <SEAGATE ST32155W 0362> Fixed Direct Access SCSI-2 device da9: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled da9: 2049MB (4197405 512 byte sectors: 255H 63S/T 261C) da8 at ahc0 bus 0 target 8 lun 0 da8: <SEAGATE ST34555W 0930> Fixed Direct Access SCSI-2 device da8: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled da8: 4340MB (8888924 512 byte sectors: 255H 63S/T 553C) changing root device to da0s1a da0 at ahc0 bus 0 target 0 lun 0 da0: <IBM DDRS-34560W S97B> Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled da0: 4357MB (8925000 512 byte sectors: 255H 63S/T 555C) da10 at ncr0 bus 0 target 0 lun 0 da10: <TANDEM 4265-1 1011> Fixed Direct Access SCSI-2 device da10: 10.000MB/s transfers (10.000MHz, offset 16), Tagged Queueing Enabled da10: 4303MB (8813870 512 byte sectors: 255H 63S/T 548C) ccd0-3: Concatenated disk drivers cd2 at ahc0 bus 0 target 6 lun 0 cd2: <PLEXTOR CD-ROM PX-6XCS 1.00> Removable CD-ROM SCSI-2 device cd2: 5.000MB/s transfers (5.000MHz, offset 15) cd2: cd present [298211 x 2048 byte records] cd0 at ahc0 bus 0 target 4 lun 0 cd0: <PLEXTOR CD-ROM PX-8XCS 1.02> Removable CD-ROM SCSI-2 device cd0: 10.000MB/s transfers (10.000MHz, offset 15) cd0: cd present [316874 x 2048 byte records] cd1 at ahc0 bus 0 target 5 lun 0 cd1: <NEC CD-ROM DRIVE:465 1.03> Removable CD-ROM SCSI-2 device cd1: 20.000MB/s transfers (20.000MHz, offset 15) cd1: Attempt to query device size failed: NOT READY, Medium not present To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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