linux-kernel - Re: [linux-usb-devel] [usb-storage] schedule

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Date:	Thu, 9 Aug 2007 10:43:53 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Mariusz Kozlowski <m.kozlowski@...land.pl>,
	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Andrew Morton <akpm@...ux-foundation.org>, <gregkh@...e.de>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB development list <linux-usb-devel@...ts.sourceforge.net>
Subject: Re: [linux-usb-devel] [usb-storage] schedule_timeout: wrong timeout
 value c1a95554

On Thu, 9 Aug 2007, Mariusz Kozlowski wrote:

> Hello,
> 
> 	Happens every time I reattach usb pen drive.
> 
> usb 1-2: new high speed USB device using ehci_hcd and address 10
> usb 1-2: configuration #1 chosen from 1 choice
> scsi6 : SCSI emulation for USB Mass Storage devices
> usb 1-2: new device found, idVendor=13fe, idProduct=1a00
> usb 1-2: new device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-2: Product: GEIL USB DISK   
> usb 1-2: Manufacturer:         
> usb-storage: device found at 10
> usb-storage: waiting for device to settle before scanning
> schedule_timeout: wrong timeout value c1a95554
>  [<c010456a>] show_trace_log_lvl+0x1a/0x30
>  [<c010508d>] show_trace+0x12/0x14
>  [<c01051e0>] dump_stack+0x15/0x17
>  [<c04174d1>] schedule_timeout+0x8c/0xa2
>  [<c032aeec>] usb_stor_scan_thread+0x100/0x160
>  [<c0127f2e>] kthread+0x36/0x58
>  [<c0104233>] kernel_thread_helper+0x7/0x14
>  =======================
> scsi 6:0:0:0: Direct-Access              GEIL USB DISK    >2.0 PQ: 0 ANSI: 0 CCS
> sd 6:0:0:0: [sda] 1007616 512-byte hardware sectors (516 MB)
> sd 6:0:0:0: [sda] Write Protect is off
> sd 6:0:0:0: [sda] Mode Sense: 23 00 00 00
> sd 6:0:0:0: [sda] Assuming drive cache: write through
> sd 6:0:0:0: [sda] 1007616 512-byte hardware sectors (516 MB)
> sd 6:0:0:0: [sda] Write Protect is off
> sd 6:0:0:0: [sda] Mode Sense: 23 00 00 00
> sd 6:0:0:0: [sda] Assuming drive cache: write through
>  sda: sda1
> sd 6:0:0:0: [sda] Attached SCSI removable disk
> sd 6:0:0:0: Attached scsi generic sg0 type 0
> usb-storage: device scan complete

This is a known problem.  See

	http://marc.info/?l=linux-kernel&m=118641424414399&w=2

Rafael, has this been fixed yet?

Alan Stern

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