Alan Stern wrote: >> $ lsusb >> Bus 002 Device 004: ID 1058:0901 Western Digital Technologies, Inc. >> MyBook External HDD >> Bus 002 Device 003: ID 1c6b:a220 Philips & Lite-ON Digital Solutions >> Corporation >> Bus 002 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB > > This 4-port hub is what I was talking about. Try leaving it out or > getting a different type of hub. I'm not sure to understand: I don't have any external usb-hub. Is it internal? The device has two ports in the back (with the USB disk and the DVD burner; the latter is a recent add-on that I could also remove) and one in front. My test is in progress but I can see the first problems in 'dmesg' with further new scarring messages (many be not related): [42949516.760000] RAID1 conf printout: [42949516.760000] --- wd:1 rd:2 [42949516.770000] disk 0, wo:0, o:1, dev:sda3 [42949516.770000] disk 1, wo:1, o:1, dev:sdb1 [42949516.790000] md: recovery of RAID array md0 [42949516.800000] md: minimum _guaranteed_ speed: 1000 KB/sec/disk. [42949516.800000] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery. [42949516.810000] md: using 128k window, over a total of 488383936 blocks. [ 901.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 939.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 971.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1226.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1450.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1516.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1686.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1718.080000] usb 2-1.4: reset high speed USB device using orion-ehci and address 4 [ 1722.700000] BUG: Bad page state in process md0_resync pfn:17220 [ 1722.710000] page:c0668400 flags:00010008 count:0 mapcount:0 mapping:d764be88 index:13 [ 1722.710000] [<c002c1f0>] (dump_stack+0x0/0x14) from [<c008d704>] (bad_page+0x108/0x144) [ 1722.720000] [<c008d5fc>] (bad_page+0x0/0x144) from [<c008df74>] (free_hot_cold_page+0x10c/0x214) [ 1722.730000] r6:c5486ea0 r5:00010008 r4:c0668400 [ 1722.740000] [<c008de68>] (free_hot_cold_page+0x0/0x214) from [<c008e0dc>] (free_hot_page+0x14/0x18) [ 1722.740000] r8:d7eb6360 r7:d7c77c00 r6:c5486ea0 r5:00000000 r4:00010028 [ 1722.750000] [<c008e0c8>] (free_hot_page+0x0/0x18) from [<c0091df8>] (put_page+0x14c/0x160) [ 1722.760000] [<c0091cac>] (put_page+0x0/0x160) from [<bf095d98>] (r1buf_pool_alloc+0x13c/0x1a4 [raid1]) [ 1722.770000] r4:00000002 [ 1722.770000] [<bf095c5c>] (r1buf_pool_alloc+0x0/0x1a4 [raid1]) from [<c008b7a8>] (mempool_alloc+0x34/0xe0) [ 1722.780000] [<c008b774>] (mempool_alloc+0x0/0xe0) from [<bf0944fc>] (sync_request+0x20c/0x6f0 [raid1]) [ 1722.790000] r8:01cd1680 r7:00000000 r6:01cd1680 r5:00001300 r4:00000001 [ 1722.800000] [<bf0942f0>] (sync_request+0x0/0x6f0 [raid1]) from [<bf07fcb0>] (md_do_sync+0x5b8/0xb04 [md_mod]) [ 1722.810000] [<bf07f6f8>] (md_do_sync+0x0/0xb04 [md_mod]) from [<bf07f6dc>] (md_thread+0x10c/0x128 [md_mod]) [ 1722.820000] [<bf07f5d0>] (md_thread+0x0/0x128 [md_mod]) from [<c005982c>] (kthread+0x5c/0x94) [ 1722.830000] r7:00000000 r6:bf07f5d0 r5:d7069e40 r4:d7b10000 [ 1722.830000] [<c00597d0>] (kthread+0x0/0x94) from [<c00484d4>] (do_exit+0x0/0x730) [ 1722.840000] r6:00000000 r5:00000000 r4:00000000 [ 1722.840000] BUG: Bad page state in process md0_resync pfn:17222 [ 1722.850000] page:c0668440 flags:0001000c count:0 mapcount:0 mapping:d7650d20 index:8 [ 1722.860000] [<c002c1f0>] (dump_stack+0x0/0x14) from [<c008d704>] (bad_page+0x108/0x144) [ 1722.870000] [<c008d5fc>] (bad_page+0x0/0x144) from [<c008df74>] (free_hot_cold_page+0x10c/0x214) ...... I'm going to stop the raid-1 sync process. I'm worried for my data. :( Mario -- 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
