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Am Fri, 06 Mar 2015 18:33:13 -0800 |
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schrieb walt <w41ter@×××××.com>: |
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|
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[...] |
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> I once hated replies containing the question "Does it work under Windows?" but |
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> a bit of experience with usb3 external drives has made me rethink the matter. |
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> |
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> Here's my thinking: if the usb3 drive works correctly with Windows but not |
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> with linux, the problem is software -- i.e. the device driver. |
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> |
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> The xhci driver is under heavy development because usb3 is still new tech, and |
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> I've found and reported a few bugs in the last year or so and they got fixed. |
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[...] |
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|
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OK, so I tried this out, and it apparently worked fine under Windows 8 (I |
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created a third FAT32 partition for this). Once Windows installed the drivers |
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(or whatever) the drive was recognised and the partition mounted without |
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trouble. |
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|
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Immediately after that, I unplugged it and moved it back to my computer, where I |
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plugged it in as usual and then turned the computer on. The problem occurred |
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again, of course: |
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|
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# journalctl -k -b | grep sdg |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Very big device. Trying to use READ CAPACITY(16). |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] 5860533160 512-byte logical blocks: (3.00 TB/2.72 TiB) |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Write Protect is off |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Mode Sense: 2b 00 00 00 |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Very big device. Trying to use READ CAPACITY(16). |
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Mär 10 17:58:57 marcec kernel: sdg: sdg1 sdg2 sdg3 |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Very big device. Trying to use READ CAPACITY(16). |
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Mär 10 17:58:57 marcec kernel: sd 8:0:0:0: [sdg] Attached SCSI disk |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] Very big device. Trying to use READ CAPACITY(16). |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] Write Protect is off |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] Mode Sense: 2b 00 00 00 |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) |
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Mär 10 18:00:33 marcec kernel: sdg: sdg1 sdg2 sdg3 |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) |
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Mär 10 18:00:33 marcec kernel: sd 9:0:0:0: [sdg] Attached SCSI disk |
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Mär 10 18:00:35 marcec kernel: BTRFS: device label MARCEC_BACKUP devid 1 transid 64666 /dev/sdg2 |
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Mär 10 18:00:35 marcec kernel: BTRFS info (device sdg2): disk space caching is enabled |
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Mär 10 18:00:42 marcec kernel: EXT4-fs (sdg1): mounted filesystem with ordered data mode. Opts: (null) |
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|
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So, what do other list members think: is it most likely a driver bug, or |
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something else (especially considering the reboot behaviour I mentioned in |
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another email)? Should I ask on the LKML, or is there a specialised ML for the |
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Linux USB stack? |
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|
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Greetings |
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-- |
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Marc Joliet |
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-- |
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"People who think they know everything really annoy those of us who know we |
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don't" - Bjarne Stroustrup |
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