Date: Mon, 5 Apr 2004 12:02:57 +1000 From: Lachlan O'Dea <odela01@ca.com> To: current@freebsd.org Subject: sa(4): removing device entry Message-ID: <5BBC9984-86A5-11D8-8786-000A95DBB47C@ca.com>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I've got a 5.2.1 system with a Quantum DTL7000 tape drive. I'm using dump(1) to backup to the tape, and this generally works fine. However, on two occasions I have seen a problem like this: Apr 2 00:42:01 isis kernel: (ahc0:A:6:0): Sending WDTR 1 Apr 2 00:42:01 isis kernel: (ahc0:A:6:0): Received WDTR 1 filtered to 1 Apr 2 00:42:01 isis kernel: ahc0: target 6 using 16bit transfers Apr 2 00:42:01 isis kernel: (ahc0:A:6:0): Sending SDTR period 19, offset 8 Apr 2 00:42:01 isis kernel: (ahc0:A:6:0): Received SDTR period 19, offset 8 Apr 2 00:42:01 isis kernel: Filtered to period 19, offset 8 Apr 2 00:42:01 isis kernel: ahc0: target 6 synchronous at 10.0MHz, offset = 0x8 Apr 2 00:42:01 isis kernel: (sa0:ahc0:0:6:0): Retrying Command Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): Unexpected busfree in Data-out phase Apr 2 01:08:36 isis kernel: SEQADDR == 0x73 Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): Unexpected Bus Free Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): error 5 Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): Retries Exausted Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): lost device Apr 2 01:08:36 isis kernel: (pass0:ahc0:0:6:0): lost device Apr 2 01:08:36 isis kernel: (pass0:ahc0:0:6:0): removing device entry Apr 2 01:08:36 isis kernel: ahc0: target 6 using 8bit transfers Apr 2 01:08:36 isis kernel: ahc0: target 6 using asynchronous transfers Apr 2 01:08:36 isis kernel: (sa0:ahc0:0:6:0): failed to write terminating filemark(s) Apr 2 01:08:37 isis kernel: (sa0:ahc0:0:6:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state. Apr 2 01:08:37 isis kernel: (sa0:ahc0:0:6:0): removing device entry Any ideas as to what the problem could be? After this happens, all *sa* devices disappear from /dev. Is there any way to recreate them, other than rebooting? If I eject the tape and insert a new one, the drive appears to load the tape normally, but I have no device entry to talk to it. - -- Lachlan O'Dea Computer Associates Senior Software Engineer tel: +61 3 8416 5627 fax: +61 3 8416 5810 mobile: +61 412 390 650 odela01@ca.com Relax and enjoy your shoes! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (Darwin) iD8DBQFAcL5RoBZahcUBONoRArsAAKD1lAVXz72tHAXLszfWDvGGK7HKtwCg+7MW WdLAidr1OMPb1JsThc9yr8w= =Om15 -----END PGP SIGNATURE-----
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