Date: Tue, 14 May 1996 20:01:21 +0000 () From: Pedro A M Vazquez <vazquez@IQM.Unicamp.BR> To: questions@freebsd.org Subject: CD problems Message-ID: <199605142001.UAA01815@kalypso.iqm.unicamp.br>
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Hello I'm experiencing problems with a SCSI CD rom, sometimes if I try to read a large (1M or more) file the system reports: May 13 18:15:10 fenixeth /kernel: ahb0:6:0 (cd0) timed out May 13 18:15:20 fenixeth /kernel: cd0(ahb0:6:0): ABORTED COMMAND asc:4e,0 Overla pped commands attempted May 13 18:15:20 fenixeth /kernel: vm_fault: pager input (probably hardware) erro r, PID 27800 failure May 13 18:16:07 fenixeth /kernel: ahb0:6:0 (cd0) timed out May 13 18:16:07 fenixeth /kernel: pid 27811: more: uid 0: exited on signal 3 May 13 18:16:58 fenixeth /kernel: ahb0:6:0 (cd0) timed out May 13 18:16:58 fenixeth /kernel: ahb0: Unexpected ASN interrupt(0x22) May 13 18:16:58 fenixeth /kernel: sd0(ahb0:0:0): UNIT ATTENTION asc:29,0 May 13 18:16:58 fenixeth /kernel: sd0(ahb0:0:0): Power on, reset, or bus device reset occurred May 13 18:16:58 fenixeth /kernel: , retries:4 May 13 18:17:49 fenixeth /kernel: sd1(ahb0:1:0): UNIT ATTENTION asc:29,0 May 13 18:17:49 fenixeth /kernel: sd1(ahb0:1:0): Power on, reset, or bus device reset occurred May 13 18:17:49 fenixeth /kernel: , retries:4 and the systems panics due the sd0 errors. This is a 486DX 33 with 16M RAM and an Adaptec 1742 EISA controler running 2.1.0-R the CD is an external Sun (Sony) we used in the past with Sparc machines. May 14 12:39:29 fenixeth /kernel: (ahb0:6:0): "SONY CD-ROM CDU-8012 3.1e" type 5 removable SCSI 2 May 14 12:39:29 fenixeth /kernel: cd0(ahb0:6:0): CD-ROM cd present.[1301008 x 51 2 byte records] one: what bothers me it worked fine in the past with 2.0.5 and 2.1.0. We have used it for serving data bases without problems, then it was unused for the last 3 months. I double checked cables, termination, etc and all seems Ok. Do I have a hardware problem here (this systems stays up forever if I'm not using the CD) ? Pedro
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