On Thu, 3 Dec 2015, brad wrote: > dt1:uname -a > Linux dt1 3.19.0-33-generic #38~14.04.1-Ubuntu SMP Fri Nov 6 18:17:28 > UTC 2015 x86_64 x86_64 x86_64 GNU/Linux > > See attached for relevant kernel log. The log was short enough to be included directly in the email message rather than as an attachment. Here are the interesting parts: Dec 3 09:06:50 dt1 kernel: [ 2388.047701] usb 1-1.4: new high-speed USB device number 4 using ehci-pci Dec 3 09:06:50 dt1 kernel: [ 2388.140693] usb 1-1.4: New USB device found, idVendor=0d49, idProduct=7110 ... Dec 3 09:06:52 dt1 kernel: [ 2389.354586] sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Dec 3 09:06:52 dt1 kernel: [ 2389.535697] sdb: unknown partition table Dec 3 09:06:52 dt1 kernel: [ 2389.716201] sd 5:0:0:0: [sdb] Attached SCSI disk Dec 3 09:06:54 dt1 kernel: [ 2391.632947] blk_update_request: critical target error, dev sdb, sector 0 Dec 3 09:06:54 dt1 kernel: [ 2391.632991] JBD2: recovery failed Dec 3 09:06:54 dt1 kernel: [ 2391.632997] EXT4-fs (sdb): error loading journal > I have the error: > blk_update_request: critical target error, dev sdb, sector 0 > JBD2: recovery failed > EXT4-fs (sdb): error loading journal > > which is the same as here: > https://bugzilla.kernel.org/show_bug.cgi?id=89511#c2 > https://bugzilla.kernel.org/show_bug.cgi?id=89511#c4 Just because the error message is the same doesn't mean the bug has to be the same. > >> sudo echo 'temporary write through' > >>> /sys/block/sdb/device/scsi_disk/6\:0\:0\:0/cache_type > >> and I'm getting an operation not permitted error no matter how I try it. sudo and output redirection don't mix well. Instead of doing it like that, do this: $ sudo -s # echo 'temporary write through' >/sys/block/sdb/device/scsi_disk/*/cache_type # exit Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
