I didn't realize FC3 was mounting this drive, else I might have done
things differently ... but I think everyone will agree that oopsing
is not OK. See the following dmesg trace.
I've seen a lot of messages about similar failures lately, as if
maybe more distros are automounting removable drives. But I also
remember seeing a lot of fixes go by; does this oops have a fix?
- Dave
============================================================================
Connect drive to NEC EHCI
hub 2-0:1.0: state 5 ports 5 chg 0000 evt 0020
ehci_hcd 0000:02:06.2: GetStatus port 5 status 001803 POWER sig=j CSC CONNECT
hub 2-0:1.0: port 5, status 0501, change 0001, 480 Mb/s
hub 2-0:1.0: debounce: port 5: total 100ms stable 100ms status 0x501
ehci_hcd 0000:02:06.2: port 5 high speed
ehci_hcd 0000:02:06.2: GetStatus port 5 status 001005 POWER sig=se0 PE CONNECT
usb 2-5: new high speed USB device using ehci_hcd and address 2
ehci_hcd 0000:02:06.2: port 5 high speed
ehci_hcd 0000:02:06.2: GetStatus port 5 status 001005 POWER sig=se0 PE CONNECT
usb 2-5: new device strings: Mfr=1, Product=3, SerialNumber=2
usb 2-5: default language 0x0409
usb 2-5: Product: OneTouch
usb 2-5: Manufacturer: Maxtor
usb 2-5: SerialNumber: ........
usb 2-5: hotplug
usb 2-5: adding 2-5:1.0 (config #1, interface 0)
usb 2-5:1.0: hotplug
Initializing USB Mass Storage driver...
usb-storage 2-5:1.0: usb_probe_interface
usb-storage 2-5:1.0: usb_probe_interface - got id
scsi0 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
Vendor: Maxtor Model: OneTouch Rev: 0201
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 490232832 512-byte hdwr sectors (250999 MB)
sda: assuming drive cache: write through
SCSI device sda: 490232832 512-byte hdwr sectors (250999 MB)
sda: assuming drive cache: write through
sda: sda1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
usb-storage: device scan complete
Erm, FC3 must be automatically mounting this for me.
I didn't ask it to, but I suppose that could be OK ...
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
... except that when I then unplug the drive ...
hub 2-0:1.0: state 5 ports 5 chg 0000 evt 0020
ehci_hcd 0000:02:06.2: GetStatus port 5 status 00100a POWER sig=se0 PEC CSC
hub 2-0:1.0: port 5, status 0100, change 0003, 12 Mb/s
usb 2-5: USB disconnect, address 2
usb 2-5: usb_disable_device nuking all URBs
usb 2-5: unregistering interface 2-5:1.0
usb 2-5:1.0: hotplug
usb 2-5: unregistering device
usb 2-5: hotplug
scsi0 (0:0): rejecting I/O to dead device
Buffer I/O error on device sda1, logical block 0
... then things go completely haywire ...
lost page write due to I/O error on sda1
Unable to handle kernel paging request at virtual address 6b6b6b6b
printing eip:
c027169b
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: usb_storage ohci_hcd ehci_hcd
CPU: 1
EIP: 0060:[<c027169b>] Not tainted VLI
EFLAGS: 00010286 (2.6.11-rc1-helium)
EIP is at scsi_device_put+0x7/0x48
eax: 0000000f ebx: 6b6b6b6b ecx: 00000000 edx: c14efbdc
esi: cd3f2360 edi: d12b3148 ebp: cd241ee4 esp: cd241ee0
ds: 007b es: 007b ss: 0068
Process umount (pid: 3497, threadinfo=cd240000 task=ccd71ac0)
Stack: cd3f2360 cd241efc c0278852 6b6b6b6b cd3f2360 c0279e4e cd2f05b8 cd241f10
c0278bf2 cd3f2360 c14df02c c14df02c cd241f34 c01519c3 c14df0a0 00000000
c14df0a0 00000000 00000000 dfc695d4 d12b3148 cd241f54 c0151a69 c14df02c
Call Trace:
[<c0102f63>] show_stack+0x74/0x7c
[<c0103077>] show_registers+0xf4/0x15e
[<c010323e>] die+0xd8/0x157
[<c010fe9a>] do_page_fault+0x43d/0x5cc
[<c0102c2b>] error_code+0x2b/0x30
[<c0278852>] scsi_disk_put+0x38/0x4d
[<c0278bf2>] sd_release+0x46/0x4f
[<c01519c3>] blkdev_put+0x69/0x137
[<c0151a69>] blkdev_put+0x10f/0x137
[<c014fdc7>] deactivate_super+0x59/0x78
[<c0161ffa>] sys_umount+0x6b/0x73
[<c0102155>] sysenter_past_esp+0x52/0x75
Code: 06 8d 04 02 ff 80 00 01 00 00 eb 0d 56 e8 3a 8c fd ff ba fa ff ff ff eb
02 31 d2 8d 65 f8 89 d0 5b 5e c9 c3 55 89 e5 53 8b 5d 08 <8b> 03 8b 40 74 8b 10
85 d2 74 26 b8 00 e0 ff ff 21 e0 8b 40 10
<7>hub 2-0:1.0: debounce: port 5: total 100ms stable 100ms status 0x100
... so things go haywire when I reconnect to ALI EHCI ...
hub 1-0:1.0: state 5 ports 6 chg 0000 evt 0002
ehci_hcd 0000:00:08.3: GetStatus port 1 status 001803 POWER sig=j CSC CONNECT
hub 1-0:1.0: port 1, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x501
ehci_hcd 0000:00:08.3: port 1 high speed
ehci_hcd 0000:00:08.3: GetStatus port 1 status 001005 POWER sig=se0 PE CONNECT
usb 1-1: new high speed USB device using ehci_hcd and address 2
ehci_hcd 0000:00:08.3: port 1 high speed
ehci_hcd 0000:00:08.3: GetStatus port 1 status 001005 POWER sig=se0 PE CONNECT
usb 1-1: new device strings: Mfr=1, Product=3, SerialNumber=2
usb 1-1: default language 0x0409
usb 1-1: Product: OneTouch
usb 1-1: Manufacturer: Maxtor
usb 1-1: SerialNumber: ........
usb 1-1: hotplug
usb 1-1: adding 1-1:1.0 (config #1, interface 0)
usb 1-1:1.0: hotplug
usb-storage 1-1:1.0: usb_probe_interface
usb-storage 1-1:1.0: usb_probe_interface - got id
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
Vendor: Maxtor Model: OneTouch Rev: 0201
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 490232832 512-byte hdwr sectors (250999 MB)
sda: assuming drive cache: write through
... at this point, nothing else ever happened;
and in particular 'hdparm -tT /dev/sda' hung.
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