Alan Stern <stern@rowland.harvard.edu> writes: >> So, the minimum is US_FL_MAX_SECTORS_64 | US_FL_BULK_IGNORE_TAG > > I would still like to see a usbmon trace showing what happens with > US_FL_BULK_IGNORE_TAG and _without_ US_FL_MAX_SECTORS_64. > usbmon attached, dmesg looks like: [90833.235667] usb-storage: device found at 10 [90833.235672] usb-storage: waiting for device to settle before scanning [90838.232280] usb-storage: device scan complete [90838.232741] scsi 10:0:0:0: Direct-Access SAMSUNG YP-CP3 1.00 PQ: 0 ANSI: 0 [90838.233107] scsi 10:0:0:1: Direct-Access SAMSUNG microSD Card 1.00 PQ: 0 ANSI: 0 CCS [90838.251803] sd 10:0:0:0: [sdb] 7649280 512-byte hardware sectors: (3.91 GB/3.64 GiB) [90838.252389] sd 10:0:0:0: [sdb] Write Protect is off [90838.252394] sd 10:0:0:0: [sdb] Mode Sense: 03 00 00 00 [90838.252397] sd 10:0:0:0: [sdb] Assuming drive cache: write through [90838.254505] sd 10:0:0:0: [sdb] Assuming drive cache: write through [90838.254513] sdb: [90838.255649] sd 10:0:0:0: [sdb] Attached SCSI removable disk [90838.256630] sd 10:0:0:1: [sdc] Attached SCSI removable disk [90838.389146] sd 10:0:0:0: [sdb] Unhandled error code [90838.389150] sd 10:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [90838.389155] end_request: I/O error, dev sdb, sector 8 [90838.389159] __ratelimit: 110 callbacks suppressed [90838.389162] Buffer I/O error on device sdb, logical block 1 [90838.389168] Buffer I/O error on device sdb, logical block 2 [90838.389171] Buffer I/O error on device sdb, logical block 3 [90838.389174] Buffer I/O error on device sdb, logical block 4 [90838.389177] Buffer I/O error on device sdb, logical block 5 [90838.389180] Buffer I/O error on device sdb, logical block 6 [90838.389183] Buffer I/O error on device sdb, logical block 7 [90838.389186] Buffer I/O error on device sdb, logical block 8 [90838.389189] Buffer I/O error on device sdb, logical block 9 [90838.389192] Buffer I/O error on device sdb, logical block 10 [90838.502971] sd 10:0:0:0: [sdb] Unhandled error code [90838.502975] sd 10:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [90838.502980] end_request: I/O error, dev sdb, sector 0 [90838.674599] sd 10:0:0:0: [sdb] Unhandled error code [90838.674602] sd 10:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [90838.674607] end_request: I/O error, dev sdb, sector 0 [90840.751890] sd 10:0:0:0: [sdb] Unhandled error code [90840.751898] sd 10:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [90840.751907] end_request: I/O error, dev sdb, sector 0 P.S. Starting from tomorrow I'll have no access to device for some time (about a month), so I'll be unable to send additional info ;( -- Vitaly Kuznetsov, ALT Linux.
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