I've been observing this bug in other kernel versions and other hardware
configurations, so I think it's easily reproductible.
Happens when I/O error on external ide <-> usb drives. Can be reproduced
by unplugging the usb cable while accessing the drive, or with a faulty
drive.
I don't think my real u2w scsi controllers would like the real scsi disks
being hot swapped, so I haven't tried there.
Regards.
--
Pedro Larroy Tovar | Linux & Network consultant | pedro%larroy.com
Las patentes de programación son nocivas para la innovación
http://proinnova.hispalinux.es/
sda, sector 10888871
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888872
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888873
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888874
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888875
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888876
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888877
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888878
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888879
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888880
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888881
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888882
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888883
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888884
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888885
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888886
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888887
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888888
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888889
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888890
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888891
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888892
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888893
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888894
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888895
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888896
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888897
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888898
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888899
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888900
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888901
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888902
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888903
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888904
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888905
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888906
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888907
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888908
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888909
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888910
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888911
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888912
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888913
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888914
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888915
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888916
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888917
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888918
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888919
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888920
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888921
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888922
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888923
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888924
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888925
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888926
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888927
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888928
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888929
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888930
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888931
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888932
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888933
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888934
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888935
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888936
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888937
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888938
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888939
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888940
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888941
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888942
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888943
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888944
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888945
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888946
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888947
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888948
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888949
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888950
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888951
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888952
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888953
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888954
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 2907
FAT: bread(block 2844) in fat_access failed
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888955
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888956
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888957
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888958
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888959
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888960
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888961
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888962
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888963
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888964
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888965
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888966
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888967
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888968
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888969
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888970
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888971
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888972
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888973
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888974
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888975
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888976
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888977
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888978
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888979
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888980
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888981
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888982
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888983
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888984
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888985
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888986
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888987
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888988
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888989
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888990
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888991
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888992
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888993
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888994
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888995
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888996
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888997
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888998
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10888999
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889000
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889001
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889002
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889003
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889004
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889005
usb 4-1: USB disconnect, address 2
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889006
scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
sd 0:0:0:0: Illegal state transition cancel->offline
Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1688
[<c023a230>] scsi_device_set_state+0xbc/0x10a
[<c0238605>] scsi_eh_offline_sdevs+0x5a/0x73
[<c02389f4>] scsi_unjam_host+0xa7/0xa9
[<c0238a8e>] scsi_error_handler+0x98/0xb7
[<c02389f6>] scsi_error_handler+0x0/0xb7
[<c0104249>] kernel_thread_helper+0x5/0xb
SCSI error : <0 0 0 0> return code = 0x70000
end_request: I/O error, dev sda, sector 10889007
printk: 157 messages suppressed.
Buffer I/O error on device sda1, logical block 10888944
lost page write due to I/O error on sda1
------------[ cut here ]------------
kernel BUG at drivers/block/as-iosched.c:1853!
invalid operand: 0000 [#1]
Modules linked in: hostap usbnet nfs nls_iso8859_1 nls_cp437 vfat fat nfsd exportfs
lockd sunrpc parport_pc lp parport cls_fw sch_sfq sch_htb ipt_REJECT ipt_state
iptable_filter iptable_nat ipt_helper ip_conntrack ipt_tos ipt_MARK iptable_mangle
ip_tables ide_cd cdrom
CPU: 0
EIP: 0060:[<c02176f0>] Not tainted VLI
EFLAGS: 00010283 (2.6.9-rc2)
EIP is at as_exit+0x44/0x58
eax: dedab58c ebx: dedab580 ecx: db995aa0 edx: db963ebc
esi: ded301b4 edi: 00000286 ebp: dec174b4 esp: db963ef4
ds: 007b es: 007b ss: 0068
Process scsi_eh_0 (pid: 1550, threadinfo=db962000 task=db995aa0)
Stack: ded30128 c020fc40 c021179b db911824 db911800 c023ba5b db9119a8 c03963a8
c03963c0 dec174d8 c020c371 c0116abe 00000000 c0380a80 c1627d00 c019af91
db9119c0 c019af93 00000000 db911800 c019b263 00000000 c030eabc 00000000
Call Trace:
[<c020fc40>] elevator_exit+0xd/0xf
[<c021179b>] blk_cleanup_queue+0x31/0x78
[<c023ba5b>] scsi_device_dev_release+0xc6/0xd5
[<c020c371>] device_release+0x53/0x57
[<c0116abe>] recalc_task_prio+0x8f/0x183
[<c019af91>] kobject_cleanup+0x8c/0x8e
[<c019af93>] kobject_release+0x0/0x8
[<c019b263>] kref_put+0x34/0x8d
[<c030eabc>] __up_wakeup+0x8/0xc
[<c0235a3e>] scsi_done+0x0/0x16
[<c0235e63>] __scsi_iterate_devices+0x47/0x51
[<c023821f>] scsi_eh_stu+0x80/0xd8
[<c023887c>] scsi_eh_ready_devs+0x19/0x6e
[<c02389f4>] scsi_unjam_host+0xa7/0xa9
[<c0238a8e>] scsi_error_handler+0x98/0xb7
[<c02389f6>] scsi_error_handler+0x0/0xb7
[<c0104249>] kernel_thread_helper+0x5/0xb
Code: 8d 43 0c 39 43 0c 75 23 8b 43 70 e8 fa ab f1 ff 8b 83 cc 00 00 00 e8 ae ba ff ff
8b 43 30 e8 51 f9 f1 ff 89 d8 5b e9 49 f9 f1 ff <0f> 0b 3d 07 f8 9b 33 c0 eb d3 0f 0b
3c 07 f8 9b 33 c0 eb c1 55
