Testing with Ubuntu 8.10 and no ehci_hcd: no oops but the device is not accessible.
With no ehci_hcd loaded, this is what I get when I insert the card reader: [ 830.760185] usb 4-2: new full speed USB device using uhci_hcd and address 2 [ 830.934123] usb 4-2: configuration #1 chosen from 1 choice [ 830.949049] scsi6 : SCSI emulation for USB Mass Storage devices [ 830.952785] usb-storage: device found at 2 [ 830.952797] usb-storage: waiting for device to settle before scanning [ 835.954520] usb-storage: device scan complete [ 836.637436] scsi 6:0:0:0: Direct-Access Generic 6000 PQ: 0 ANSI: 0 CCS [ 836.648266] sd 6:0:0:0: [sdb] 1987584 512-byte hardware sectors (1018 MB) [ 836.651260] sd 6:0:0:0: [sdb] Write Protect is off [ 836.651271] sd 6:0:0:0: [sdb] Mode Sense: 4b 00 00 08 [ 836.651277] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 836.675516] sd 6:0:0:0: [sdb] 1987584 512-byte hardware sectors (1018 MB) [ 836.679344] sd 6:0:0:0: [sdb] Write Protect is off [ 836.679356] sd 6:0:0:0: [sdb] Mode Sense: 4b 00 00 08 [ 836.679362] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 836.679374] sdb:<3>end_request: I/O error, dev sdb, sector 0 [ 836.814378] __ratelimit: 5 callbacks suppressed [ 836.814386] Buffer I/O error on device sdb, logical block 0 and this is what happens during lsusb: [ 866.924193] usb 4-2: reset full speed USB device using uhci_hcd and address 2 [ 882.036225] usb 4-2: device descriptor read/64, error -110 [ 897.252189] usb 4-2: device descriptor read/64, error -110 [ 897.468182] usb 4-2: reset full speed USB device using uhci_hcd and address 2 [ 912.580205] usb 4-2: device descriptor read/64, error -110 [ 927.852188] usb 4-2: device descriptor read/64, error -110 [ 928.124184] usb 4-2: reset full speed USB device using uhci_hcd and address 2 [ 938.532183] usb 4-2: device not accepting address 2, error -110 [ 938.644177] usb 4-2: reset full speed USB device using uhci_hcd and address 2 [ 949.052175] usb 4-2: device not accepting address 2, error -110 [ 949.052300] usb 4-2: USB disconnect, address 2 [ 949.052333] sd 6:0:0:0: Device offlined - not ready after error recovery [ 949.052350] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK,SUGGEST_OK [ 949.052359] end_request: I/O error, dev sdb, sector 0 [ 949.052369] Buffer I/O error on device sdb, logical block 0 [ 949.052452] sd 6:0:0:0: rejecting I/O to offline device [ 949.052460] Buffer I/O error on device sdb, logical block 0 [ 949.052488] sd 6:0:0:0: rejecting I/O to offline device [ 949.052495] Buffer I/O error on device sdb, logical block 0 [ 949.052511] sd 6:0:0:0: rejecting I/O to offline device [ 949.052517] Buffer I/O error on device sdb, logical block 0 [ 949.052526] ldm_validate_partition_table(): Disk read failed. [ 949.052538] sd 6:0:0:0: rejecting I/O to offline device [ 949.052543] Buffer I/O error on device sdb, logical block 0 [ 949.052558] sd 6:0:0:0: rejecting I/O to offline device [ 949.052563] Buffer I/O error on device sdb, logical block 0 [ 949.052578] sd 6:0:0:0: rejecting I/O to offline device [ 949.052583] Buffer I/O error on device sdb, logical block 0 [ 949.052598] sd 6:0:0:0: rejecting I/O to offline device [ 949.052603] Buffer I/O error on device sdb, logical block 0 [ 949.052612] Dev sdb: unable to read RDB block 0 [ 949.052623] sd 6:0:0:0: rejecting I/O to offline device [ 949.052628] Buffer I/O error on device sdb, logical block 0 [ 949.052643] sd 6:0:0:0: rejecting I/O to offline device [ 949.052674] sd 6:0:0:0: rejecting I/O to offline device [ 949.052690] sd 6:0:0:0: rejecting I/O to offline device [ 949.052705] sd 6:0:0:0: rejecting I/O to offline device [ 949.052722] sd 6:0:0:0: rejecting I/O to offline device [ 949.052730] unable to read partition table [ 949.052968] sd 6:0:0:0: [sdb] Attached SCSI removable disk [ 949.053192] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 949.169180] usb 4-2: new full speed USB device using uhci_hcd and address 3 [ 964.336203] usb 4-2: device descriptor read/64, error -110 [ 979.608200] usb 4-2: device descriptor read/64, error -110 [ 979.824182] usb 4-2: new full speed USB device using uhci_hcd and address 4 [ 994.936097] usb 4-2: device descriptor read/64, error -110 [ 1010.152178] usb 4-2: device descriptor read/64, error -110 [ 1010.368196] usb 4-2: new full speed USB device using uhci_hcd and address 5 lsusb takes a lot of time but it finally shows something (but not the card reader): ~$ lsusb Bus 006 Device 003: ID 05a9:7670 OmniVision Technologies, Inc. Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub -- lsusb causes oops when an USB MicroSD card reader is present https://bugs.launchpad.net/bugs/115329 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
