hi 2012/1/16 Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx>: > Hi, > > On 01/15/12 23:45, loody wrote: >> hi all: >> 2012/1/15 loody <miloody@xxxxxxxxx>: >>> Dear all: >>> I use kernel 2.6.35.13 and cpu for mips >>> When I plug in/out usb stick for several times I got following warning >>> messages as I append at the end of mail. >>> >>> is it possible correlate to below issue >>> http://thread.gmane.org/gmane.linux.kernel/1177383/focus=69879 >> I want to reproduce the issue of the thread above in my platform. >> But I have no idea about: >> 1 dm-multipath >> 2. dm-round-robin >> >> are they additional module I need to download or it already include >> kernel source? >> if the later, which config I shout select? > > They are in kernel source (in drivers/md). > You have to select CONFIG_BLK_DEV_DM and CONFIG_DM_MULTIPATH > to enable them. > > To try reproducer in the thread, you also need "dmsetup" > command, which is part of device-mapper utility. > > >> Appreciate your help, >> >>> >>> >>> INFO: task kblockd/0:10 blocked for more than 120 seconds. >>> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>> kblockd/0 D [87016a78] 802d1e48 0 10 0x00100000 2 >>> 11 9 (kernel thread) >>> Stack : 00000001 80107148 8562ed80 800e9098 00000001 00000001 7fffffff 00000000 >>> 00000000 7fffffff 87053d38 ffffffff 87053d38 87053d28 872ff00c 802d1e48 >>> 00000001 00000009 00000102 80071c80 00005965 0056addf 00005965 00000001 >>> 00000000 00000000 7fffffff 80020c64 00000000 00000002 00000000 00000000 >>> 7fffffff 802d1ca8 00000000 80024538 00000004 0000000a 00000001 87016a78 >>> ... >>> Call Trace: >>> [<802d1764>] schedule+0x648/0x70c from[<802d1e48>] schedule_timeout+0x30/0x324 >>> [<802d1e48>] schedule_timeout+0x30/0x324 from[<802d1ca8>] >>> wait_for_common+0xf8/0x1c0 >>> [<802d1ca8>] wait_for_common+0xf8/0x1c0 from[<80044400>] >>> __cancel_work_timer+0x188/0x210 >>> [<80044400>] __cancel_work_timer+0x188/0x210 from[<801a48c4>] >>> blk_cleanup_queue+0x18/0x6c >>> [<801a48c4>] blk_cleanup_queue+0x18/0x6c from[<802098f4>] >>> scsi_device_dev_release_usercontext+0x174/0x1e4 >>> [<802098f4>] scsi_device_dev_release_usercontext+0x174/0x1e4 >>> from[<80043aa8>] execute_in_process_context+0x30/0x5c >>> [<80043aa8>] execute_in_process_context+0x30/0x5c from[<801eeda8>] >>> device_release+0x54/0x90 >>> [<801eeda8>] device_release+0x54/0x90 from[<801b0180>] kobject_release+0x70/0xa8 >>> [<801b0180>] kobject_release+0x70/0xa8 from[<801b17bc>] kref_put+0x80/0x98 >>> [<801b17bc>] kref_put+0x80/0x98 from[<80203c04>] scsi_request_fn+0x51c/0x61c >>> [<80203c04>] scsi_request_fn+0x51c/0x61c from[<801a482c>] >>> generic_unplug_device+0x38/0x7c >>> [<801a482c>] generic_unplug_device+0x38/0x7c from[<80043e90>] >>> worker_thread+0x1ec/0x2d4 >>> [<80043e90>] worker_thread+0x1ec/0x2d4 from[<800482c4>] kthread+0x7c/0x84 >>> [<800482c4>] kthread+0x7c/0x84 from[<80007818>] kernel_thread_helper+0x10/0x18 >>> >>> ------------------------------------------------------------------------------------- >>> hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002 >>> hub 1-0:1.0: port 1, status 0000, change 0001, 12 Mb/s >>> usb 1-1: USB disconnect, address 35 >>> usb 1-1: unregistering device >>> usb 1-1: unregistering interface 1-1:1.0 >>> usb 1-1: usb_disable_device nuking all URBs >>> hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x0 >>> hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002 >>> ehci-ehci ehci-ehci.0: GetStatus port 1 status 000803 sig=j CSC CONNECT >>> hub 1-0:1.0: port 1, status 0401, change 0001, 480 Mb/s >>> hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x401 >>> ehci-ehci ehci-ehci.0: port 1 high speed >>> ehci-ehci ehci-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT >>> usb 1-1: new high speed USB device using ehci-ehci and address 36 >>> ehci-ehci ehci-ehci.0: port 1 high speed >>> ehci-ehci ehci-ehci.0: GetStatus port 1 status 00000d sig=se0 PEC PE CONNECT >>> usb 1-1: default language 0x0409 >>> usb 1-1: udev 36, busnum 1, minor = 35 > > -- > Jun'ichi Nomura, NEC Corporation Sorry for late expressing my appreciation. I didn't see your mail until now. -- Regards, -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
