On Mon, Oct 11 2004, Nick Piggin wrote: > Pedro Larroy wrote: > >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. > > > > Thanks. It looks like it may possibly not be an elevator specific > oops. Can you try booting with elevator=deadline and see if you can > reproduce the oops please?
It's not, it clearly looks like SCSI trying to kill off the queue with pending commands. > > [snip] > > >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 > > - > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Jens Axboe ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
