[Bugme-new] [Bug 8840] New: usb storage device dis/reconnects quickly and oopses

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Fri Aug 3 01:27:49 PDT 2007 

http://bugzilla.kernel.org/show_bug.cgi?id=8840

           Summary: usb storage device dis/reconnects quickly and oopses
           Product: Drivers
           Version: 2.5
     KernelVersion: 2.6.22
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
        AssignedTo: greg at kroah.com
        ReportedBy: kernel-bugzilla at aquazul.com


Distribution:
Debian unstable

Hardware Environment:
Asus M2V (VIA KT890), ValuePlus SPIO 352S USB2 to SATA enclosure

usb device:     Bus 005 Device 007: ID 152d:2336
usb controller: 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
usb controller: 00:10.4 0c03: 1106:3104 (rev 86)

Software Environment:
- 32bit kernel and userland
- udev rule:
SUBSYSTEM=="scsi", SUBSYSTEMS=="usb", ATTRS{idVendor}=="152d",
ATTR{max_sectors}="128"

... because the drive enclosure can't seem to cope with max_sectors=240
reliably. (with 240 it disconnects during heavy traffic)

Problem Description:
An external disk gets plugged/unplugged regularly. Under certain circumstances
(even with no traffic at all) it will start going nuts,
connecting/disconnecting quite quickly, and finally ending in an Oops. The
enclosure isn't the most reliable AFAICT, so maybe this bug is hardware related
after all - feel free to close it if you think so.

Steps to reproduce:
Plug in and out on a regular basis. Once in a while (7-10 days) it'll start
"disconnecting" continuously, and then it's a matter of time before it oopses.



Aug  2 09:04:30 server kernel: usb 5-3: new high speed USB device using
ehci_hcd and address 117
Aug  2 09:04:30 server kernel: usb 5-3: configuration #1 chosen from 1 choice
Aug  2 09:04:30 server kernel: scsi97 : SCSI emulation for USB Mass Storage
devices
Aug  2 09:04:30 server kernel: usb-storage: device found at 117
Aug  2 09:04:30 server kernel: usb-storage: waiting for device to settle before
scanning
Aug  2 09:04:33 server kernel: usb 5-3: USB disconnect, address 117
Aug  2 09:04:35 server kernel: usb 5-3: new high speed USB device using
ehci_hcd and address 118
Aug  2 09:04:35 server kernel: usb 5-3: configuration #1 chosen from 1 choice
Aug  2 09:04:35 server kernel: scsi98 : SCSI emulation for USB Mass Storage
devices
Aug  2 09:04:35 server kernel: usb-storage: device found at 118
Aug  2 09:04:35 server kernel: usb-storage: waiting for device to settle before
scanning
Aug  2 09:04:37 server kernel: usb 5-3: USB disconnect, address 118
Aug  2 09:04:40 server kernel: usb 5-3: new high speed USB device using
ehci_hcd and address 119
Aug  2 09:04:40 server kernel: usb 5-3: configuration #1 chosen from 1 choice
Aug  2 09:04:40 server kernel: scsi99 : SCSI emulation for USB Mass Storage
devices
Aug  2 09:04:40 server kernel: usb-storage: device found at 119
Aug  2 09:04:40 server kernel: usb-storage: waiting for device to settle before
scanning
Aug  2 09:04:45 server kernel: usb-storage: device scan complete
Aug  2 09:04:45 server kernel: scsi 99:0:0:0: Direct-Access     WDC WD40
00YR-01PLB0           PQ: 0 ANSI: 2 CCS
Aug  2 09:04:45 server kernel: sd 99:0:0:0: [sdc] 781422768 512-byte hardware
sectors (400088 MB)
Aug  2 09:04:45 server kernel: sd 99:0:0:0: [sdc] Write Protect is off
Aug  2 09:04:45 server kernel: sd 99:0:0:0: [sdc] Mode Sense: 00 38 00 00
Aug  2 09:04:45 server kernel: sd 99:0:0:0: [sdc] Assuming drive cache: write
through
Aug  2 09:04:45 server kernel: sd 99:0:0:0: [sdc] 781422768 512-byte hardware
sectors (400088 MB)
Aug  2 09:04:48 server kernel: sd 99:0:0:0: [sdc] Write Protect is off
Aug  2 09:04:48 server kernel: usb 5-3: USB disconnect, address 119
Aug  2 09:04:48 server kernel: BUG: unable to handle kernel NULL pointer
dereference at virtual address 00000000
Aug  2 09:04:48 server kernel:  printing eip:
Aug  2 09:04:48 server kernel: c022ffc9
Aug  2 09:04:48 server kernel: *pde = 00000000
Aug  2 09:04:48 server kernel: Oops: 0000 [#1]
Aug  2 09:04:49 server kernel: SMP
Aug  2 09:04:49 server kernel: Modules linked in: sha1 arc4 ecb blkcipher
ppp_mppe button ac battery ppp_deflate zlib_deflate bsd_comp ipt_MASQUERADE
xt_TCPMSS xt_state xt_NOTRACK iptable_raw ipt_REDIRECT ipt_REJECT ipt_LOG
xt_limit xt_tcpudp iptable_filter iptable_nat nf_nat nf_conntrack_ipv4
nf_conntrack nfnetlink iptable_mangle ip_tables x_tables ppp_async crc_ccitt
ppp_generic slhc ipv6 dm_snapshot dm_mirror dm_mod it87 hwmon_vid i2c_isa evdev
serio_raw shpchp psmouse k8temp i2c_viapro pcspkr atl1 rtc parport_pc parport
i2c_core pci_hotplug mii ext3 jbd mbcache raid1 md_mod ide_generic ide_cd cdrom
sd_mod via82cxxx usb_storage generic ide_core ehci_hcd uhci_hcd ata_generic
e1000 sata_via floppy usbcore libata scsi_mod thermal processor fan
Aug  2 09:04:49 server kernel: CPU:    0
Aug  2 09:04:49 server kernel: EIP:    0060:[<c022ffc9>]    Not tainted VLI
Aug  2 09:04:49 server kernel: EFLAGS: 00010202   (2.6.22-1-k7 #1)
Aug  2 09:04:49 server kernel: EIP is at make_class_name+0x27/0x7a
Aug  2 09:04:49 server kernel: eax: 00000000   ebx: ffffffff   ecx: ffffffff  
edx: 0000000b
Aug  2 09:04:49 server kernel: esi: f8877a72   edi: 00000000   ebp: 00000000  
esp: df99fe68
Aug  2 09:04:49 server kernel: ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss:
0068
Aug  2 09:04:49 server kernel: Process khubd (pid: 847, ti=df99e000
task=dfa29a90 task.ti=df99e000)
Aug  2 09:04:49 server kernel: Stack: f7d47208 f7d47200 f8885dec f8885d80
f7d47208 c02300fb 00000000 f7d47200
Aug  2 09:04:49 server kernel:        f7d47094 00000246 f7d47c00 c0230185
f7d47000 f886d6d2 f7d47000 dfc19c00
Aug  2 09:04:49 server kernel:        f886b302 dfc19c30 dfc19c00 f88664be
dfc19ef8 dfe9f218 f8952660 f894289e
Aug  2 09:04:49 server kernel: Call Trace:
Aug  2 09:04:49 server kernel:  [<c02300fb>] class_device_del+0x83/0x105
Aug  2 09:04:49 server kernel:  [<c0230185>] class_device_unregister+0x8/0x10
Aug  2 09:04:49 server kernel:  [<f886d6d2>] __scsi_remove_device+0x23/0x60
[scsi_mod]
Aug  2 09:04:49 server kernel:  [<f886b302>] scsi_forget_host+0x2d/0x4a
[scsi_mod]
Aug  2 09:04:49 server kernel:  [<f88664be>] scsi_remove_host+0x65/0xd7
[scsi_mod]
Aug  2 09:04:49 server kernel:  [<f894289e>] storage_disconnect+0xe/0x16
[usb_storage]
Aug  2 09:04:49 server kernel:  [<f88ad706>] usb_unbind_interface+0x44/0x85
[usbcore]
Aug  2 09:04:49 server kernel:  [<c022f893>] __device_release_driver+0x6e/0x8b
Aug  2 09:04:49 server kernel:  [<c022fc1e>] device_release_driver+0x1e/0x34
Aug  2 09:04:49 server kernel:  [<c022f28c>] bus_remove_device+0x6a/0x7a
Aug  2 09:04:49 server kernel:  [<c022da99>] device_del+0x1c7/0x238
Aug  2 09:04:49 server kernel:  [<f88ab1ff>] usb_disable_device+0x5c/0xbb
[usbcore]
Aug  2 09:04:49 server kernel:  [<f88a7d43>] usb_disconnect+0x83/0x122
[usbcore]
Aug  2 09:04:49 server kernel:  [<f88a8460>] hub_thread+0x377/0xa73 [usbcore]
Aug  2 09:04:49 server kernel:  [<c0133375>] autoremove_wake_function+0x0/0x35
Aug  2 09:04:49 server kernel:  [<f88a80e9>] hub_thread+0x0/0xa73 [usbcore]
Aug  2 09:04:49 server kernel:  [<c01332af>] kthread+0x38/0x5d
Aug  2 09:04:49 server kernel:  [<c0133277>] kthread+0x0/0x5d
Aug  2 09:04:49 server kernel:  [<c01049b7>] kernel_thread_helper+0x7/0x10
Aug  2 09:04:49 server kernel:  =======================
Aug  2 09:04:49 server kernel: Code: 5b 04 5b c3 55 31 ed 57 89 c7 56 89 c6 89
e8 53 83 cb ff 89 d9 83 ec 04 89 14 24 f2 ae f7 d1 49 8b 04 24 89 ca 89 d9 8b
38 89 e8 <f2> ae f7 d1 49 8d 44 0a 02 ba d0 00 00 00 e8 38 7b f3 ff 31 d2
Aug  2 09:04:49 server kernel: EIP: [<c022ffc9>] make_class_name+0x27/0x7a
SS:ESP 0068:df99fe68
Aug  2 09:04:49 server kernel: sd 99:0:0:0: [sdc] Mode Sense: 00 38 00 00
Aug  2 09:04:49 server kernel: sd 99:0:0:0: [sdc] Assuming drive cache: write
through
Aug  2 09:04:49 server kernel:  sdc:<3>Buffer I/O error on device sdc, logical
block 0
Aug  2 09:04:49 server kernel: Buffer I/O error on device sdc, logical block 0

... got more of these in logfiles if needed.

Thanks for your consideration,

-- Mourad DC


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