Date: Sat, 30 Aug 2014 14:31:32 -0400 From: grarpamp <grarpamp@gmail.com> To: freebsd-scsi@freebsd.org Cc: freebsd-hardware@freebsd.org Subject: CAM_REQ_CMP_ERR Message-ID: <CAD2Ti2-RL6ttJURL18tNztRMHY8xZZVNDHn59i=1ovZsj2umqA@mail.gmail.com>
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I get a lot of these. Searching doesn't say much about them. What do they mean? A data corruption error on the media? (Seems to happen at random (nonrepeating) locations, so I doubt this.) Is sysctl kern.cam.da.retry_count the correct way to bump this retry count? (I tried that and it seems to bump, but doesn't seem to have much result as far as turning the error into a later success.) Can I force various interface speeds like USB 1.0, 2.0, etc? Thanks. cam.h: CAM_REQ_CMP_ERR, /* CCB request completed with an error */ 8 STABLE r269631 kernel: (da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR kernel: (da0:umass-sim0:0:0:0): Retrying command ... kernel: (da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR kernel: (da0:umass-sim0:0:0:0): Error 5, Retries exhausted ugen3.2: <MAKE> at usbus3 umass0: <MAKE MODEL, class 0/0, rev 2.00/0.00, addr 2> on usbus3 umass0: SCSI over Bulk-Only; quirks = 0x4100 umass0:3:0:-1: Attached to scbus3 (probe0:umass-sim0:0:0:0): Down reving Protocol Version from 2 to 0? pass2 at umass-sim0 bus 0 scbus3 target 0 lun 0 pass2: <MAKE MODEL 2.00> Removable Direct Access SCSI-0 device pass2: Serial Number num pass2: 40.000MB/s transfers GEOM: new disk da0 da0 at umass-sim0 bus 0 scbus3 target 0 lun 0 da0: <MAKE MODEL 2.00> Removable Direct Access SCSI-0 device da0: Serial Number num da0: 40.000MB/s transfers da0: sizeMB (count 512 byte sectors: 64H 32S/T sizeC) da0: quirks=0x2<NO_6_BYTE> da0: Delete methods: <NONE(*)>
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