Re: [usb-storage]: WARNING: at drivers/usb/storage/transport.c:584 last_sector_hacks+0x11d/0x190()

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On Fri, 9 Jan 2009, Gabriel C wrote:

> Hallo,
> 
> Since commit 25ff1c316f6a763f1eefe7f8984b2d8c03888432 I get the following trace on my logs:
> 
> ..
> 
> [   12.352477] usb-storage: device scan complete
> [   12.353583] scsi 6:0:0:0: Direct-Access     Ut163    USB2FlashStorage 0.00 PQ: 0 ANSI: 2
> [   12.360519] sd 6:0:0:0: Attached scsi generic sg4 type 0
> [   12.361066] sd 6:0:0:0: [sdd] 1974271 512-byte hardware sectors: (1.01 GB/963 MiB)
> [   12.371194] sd 6:0:0:0: [sdd] Write Protect is off
> [   12.376659] sd 6:0:0:0: [sdd] Mode Sense: 00 00 00 00
> [   12.376661] sd 6:0:0:0: [sdd] Assuming drive cache: write through
> [   12.385072] sd 6:0:0:0: [sdd] 1974271 512-byte hardware sectors: (1.01 GB/963 MiB)
> [   12.391068] sd 6:0:0:0: [sdd] Write Protect is off
> [   12.396175] sd 6:0:0:0: [sdd] Mode Sense: 00 00 00 00
> [   12.396177] sd 6:0:0:0: [sdd] Assuming drive cache: write through
> [   12.401288]  sdd: sdd1
> [   12.503047] sd 6:0:0:0: [sdd] Attached SCSI removable disk
> [   12.640809] ------------[ cut here ]------------
> [   12.646035] WARNING: at drivers/usb/storage/transport.c:584 last_sector_hacks+0x11d/0x190()
> [   12.651323] Hardware name: P5E-VM DO
> [   12.656585] sdd: Successful last sector success at 1974270, device 1307:0163:0100
> [   12.661952] Modules linked in: fuse loop lp ppdev parport_pc joydev parport processor button pcspkr i2c_i801 evdev sg intel_agp
> [   12.673052] Pid: 1194, comm: usb-storage Not tainted 2.6.28-07939-g2150edc #34
> [   12.678627] Call Trace:
> [   12.684040]  [<ffffffff8024c260>] warn_slowpath+0xd0/0x130
> [   12.689408]  [<ffffffff80621e45>] ? schedule_timeout+0xb5/0xf0
> [   12.694635]  [<ffffffff804d512e>] ? sg_clean+0x3e/0x80
> [   12.699737]  [<ffffffff80623e19>] ? _spin_unlock_irq+0x9/0x50
> [   12.704714]  [<ffffffff80620e5a>] ? wait_for_common+0xfa/0x170
> [   12.709536]  [<ffffffff80247c80>] ? default_wake_function+0x0/0x10
> [   12.714366]  [<ffffffff804f3136>] ? usb_stor_msg_common+0x126/0x180
> [   12.719171]  [<ffffffff804f362c>] ? usb_stor_bulk_transfer_buf+0x8c/0xb0
> [   12.719174]  [<ffffffff804f2f9d>] last_sector_hacks+0x11d/0x190
> [   12.719176]  [<ffffffff804f3974>] usb_stor_invoke_transport+0x1e4/0x390
> [   12.719178]  [<ffffffff80623e19>] ? _spin_unlock_irq+0x9/0x50
> [   12.719181]  [<ffffffff80620e5a>] ? wait_for_common+0xfa/0x170
> [   12.719183]  [<ffffffff80247c80>] ? default_wake_function+0x0/0x10
> [   12.719186]  [<ffffffff804f2d19>] usb_stor_transparent_scsi_command+0x9/0x10
> [   12.719188]  [<ffffffff804f51ef>] usb_stor_control_thread+0x13f/0x230
> [   12.719191]  [<ffffffff804f50b0>] ? usb_stor_control_thread+0x0/0x230
> [   12.719194]  [<ffffffff80263a19>] kthread+0x49/0x90
> [   12.719196]  [<ffffffff8020da1a>] child_rip+0xa/0x20
> [   12.719199]  [<ffffffff802639d0>] ? kthread+0x0/0x90
> [   12.719200]  [<ffffffff8020da10>] ? child_rip+0x0/0x20
> [   12.719202] ---[ end trace 1b5f08c07bcaea59 ]---
> 
> 
> ....
> 
> 
> From the commit log I see this is indeed but personally I think the WARN() is really not needed here
> since is spamming the console for no reason. A friendly user message should do it here no ?
> 
> Something like :
> 
> $dev: Successful last sector success at xxxx, device xxxx
> $dev: Your device may need an an unusual_devs entry , please contact <some mailing list>
> 
> ( Also why don't you guys introduce some CONFIG_KERNELOOPS_ORG_REALLY_SPAM_ME and 
> let the user or distros which are using kerneloops.org to decide whatever to enable or disable these warnings ? )

The original reasons for adding this WARN() no longer apply, and I plan
to remove it before 2.6.29.final.  However I do admit to being curious
to see from the kerneloops records how often it triggers...

> However while trying to add  an unusual_devs entry for my device I got the following error message when running lsusb -v -d the_device :
> 
> ...
> 
> can't get device qualifier: Connection timed out
> can't get debug descriptor: Connection timed out
> cannot read device status, Connection timed out (110)
> ...
> 
> And in dmesg :
> 
> ...
> 
>  1317.433117] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 4 ret -110
> [ 1322.433130] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 0 len 2 ret -110
> [ 2310.219145] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
> [ 2311.219149] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
> [ 2312.219144] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 255 ret -110
> [ 2317.219161] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 10 ret -110
> [ 2322.219047] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 4 ret -110
> [ 2327.219066] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 0 len 2 ret -110
> [ 2340.806018] usb 1-4: reset high speed USB device using ehci_hcd and address 2
> [ 2340.920348] usb 1-4: device firmware changed
> [ 2340.920368] usb 1-4: USB disconnect, address 2
> [ 2340.920376] sd 6:0:0:0: Device offlined - not ready after error recovery
> [ 2341.036024] usb 1-4: new high speed USB device using ehci_hcd and address 3
> [ 2341.153472] usb 1-4: configuration #1 chosen from 1 choice
> [ 2341.153730] scsi7 : SCSI emulation for USB Mass Storage devices
> [ 2341.153808] usb-storage: device found at 3
> [ 2341.153811] usb-storage: waiting for device to settle before scanning
> [ 2346.153159] usb-storage: device scan complete
> [ 2346.154269] scsi 7:0:0:0: Direct-Access     Ut163    USB2FlashStorage 0.00 PQ: 0 ANSI: 2
> [ 2346.155235] sd 7:0:0:0: Attached scsi generic sg4 type 0
> [ 2346.156002] sd 7:0:0:0: [sdd] 1974271 512-byte hardware sectors: (1.01 GB/963 MiB)
> [ 2346.162519] sd 7:0:0:0: [sdd] Write Protect is off
> [ 2346.162522] sd 7:0:0:0: [sdd] Mode Sense: 00 00 00 00
> [ 2346.162524] sd 7:0:0:0: [sdd] Assuming drive cache: write through
> [ 2346.165502] sd 7:0:0:0: [sdd] 1974271 512-byte hardware sectors: (1.01 GB/963 MiB)
> [ 2346.166499] sd 7:0:0:0: [sdd] Write Protect is off
> [ 2346.166501] sd 7:0:0:0: [sdd] Mode Sense: 00 00 00 00
> [ 2346.166503] sd 7:0:0:0: [sdd] Assuming drive cache: write through
> [ 2346.166506]  sdd: sdd1
> [ 2346.268072] sd 7:0:0:0: [sdd] Attached SCSI removable disk
> [ 2346.407115] ------------[ cut here ]------------
> [ 2346.407119] WARNING: at drivers/usb/storage/transport.c:584 last_sector_hacks+0x11d/0x190()
> [ 2346.407121] Hardware name: P5E-VM DO
> [ 2346.407123] sdd: Successful last sector success at 1974270, device 1307:0163:0100
> [ 2346.407124] Modules linked in: i915 binfmt_misc acpi_cpufreq freq_table w83627ehf hwmon_vid fuse loop lp ppdev parport_pc joydev parport processor button pcspkr i2c_i801 evdev sg intel_agp
> [ 2346.407187] Pid: 13084, comm: usb-storage Tainted: G        W  2.6.28-07939-g2150edc #34
> [ 2346.407195] Call Trace:
> [ 2346.407206]  [<ffffffff8024c260>] warn_slowpath+0xd0/0x130
> [ 2346.407216]  [<ffffffff80621e45>] ? schedule_timeout+0xb5/0xf0
> [ 2346.407225]  [<ffffffff804d4693>] ? urb_destroy+0x23/0x30
> [ 2346.407234]  [<ffffffff80623e19>] ? _spin_unlock_irq+0x9/0x50
> [ 2346.407242]  [<ffffffff80620e5a>] ? wait_for_common+0xfa/0x170
> [ 2346.407251]  [<ffffffff80247c80>] ? default_wake_function+0x0/0x10
> [ 2346.407260]  [<ffffffff804f3136>] ? usb_stor_msg_common+0x126/0x180
> [ 2346.407269]  [<ffffffff804f362c>] ? usb_stor_bulk_transfer_buf+0x8c/0xb0
> [ 2346.407278]  [<ffffffff804f2f9d>] last_sector_hacks+0x11d/0x190
> [ 2346.407288]  [<ffffffff804f3974>] usb_stor_invoke_transport+0x1e4/0x390
> [ 2346.407298]  [<ffffffff80623e19>] ? _spin_unlock_irq+0x9/0x50
> [ 2346.407307]  [<ffffffff80620e5a>] ? wait_for_common+0xfa/0x170
> [ 2346.407317]  [<ffffffff80247c80>] ? default_wake_function+0x0/0x10
> [ 2346.407326]  [<ffffffff804f2d19>] usb_stor_transparent_scsi_command+0x9/0x10
> [ 2346.407336]  [<ffffffff804f51ef>] usb_stor_control_thread+0x13f/0x230
> [ 2346.407346]  [<ffffffff804f50b0>] ? usb_stor_control_thread+0x0/0x230
> [ 2346.407355]  [<ffffffff80263a19>] kthread+0x49/0x90
> [ 2346.407364]  [<ffffffff8020da1a>] child_rip+0xa/0x20
> [ 2346.407373]  [<ffffffff802639d0>] ? kthread+0x0/0x90
> [ 2346.407379]  [<ffffffff8020da10>] ? child_rip+0x0/0x20
> [ 2346.407381] ---[ end trace 1b5f08c07bcaea5a ]---
> [ 2412.896338] FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
> [ 2422.169223] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 6 len 4 ret -110
> [ 2427.169483] usb 1-4: usbfs: USBDEVFS_CONTROL failed cmd lsusb rqt 128 rq 0 len 2 ret -110
> 
> ...
> 
> 
> This is probably some different bug / feature ? :)

It is certainly different.  I can't tell the cause from the information 
in your log.  You should try usbmon (see Documentation/usb/usbmon.txt).

> Since I get now a bit confused about all this warnings , it is OK to add any entry for that device or it is broken ?

The WARN() does not indicate anything wrong with your device.  In fact, 
you can remove the WARN() entirely from your kernel, if you like.  Or 
you can add a local unusual_devs entry.

As for the lsusb problem, I don't know.

Alan Stern

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