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Message-ID: <a8e1da0901220100te99cf1x12049efcf32c6bc9@mail.gmail.com>
Date: Thu, 22 Jan 2009 17:00:39 +0800
From: Dave Young <hidave.darkstar@...il.com>
To: Alan Stern <stern@...land.harvard.edu>
Cc: Grissiom <chaos.proton@...il.com>, Greg KH <greg@...ah.com>,
Kernel development list <linux-kernel@...r.kernel.org>,
USB list <linux-usb@...r.kernel.org>
Subject: Re: WARNING: at drivers/usb/storage/transport.c:584
On Mon, Jan 19, 2009 at 1:25 AM, Alan Stern <stern@...land.harvard.edu> wrote:
> On Sat, 17 Jan 2009, Greg KH wrote:
>
>> On Sun, Jan 18, 2009 at 11:58:16AM +0800, Grissiom wrote:
>> > On Fri, Jan 16, 2009 at 09:17, Grissiom <chaos.proton@...il.com> wrote:
>> > >
>> > > In the last git version of kernel, when I copy some data to a USB disk
>> > > I got this WARNING:
>> > >
>> > > [ 6394.109641] ------------[ cut here ]------------
>> > > [ 6394.109655] WARNING: at drivers/usb/storage/transport.c:584
>> > > last_sector_hacks+0x139/0x190()
>> > > [ 6394.109662] Hardware name: Inspiron 1501
>> > > [ 6394.109670] sdb: Successful last sector success at 1993648, device
>> > > 10d6:1101:0100
>> > > [ 6394.109676] Modules linked in: fuse ricoh_mmc b43
>> > > [ 6394.109693] Pid: 6937, comm: usb-storage Not tainted
>> > > 2.6.29-rc1-g14-rfkill-nophy-ledon-00224-ga652504 #68
>> > > [ 6394.109700] Call Trace:
>> > > [ 6394.109715] [<c012a099>] warn_slowpath+0x99/0xc0
>> > > [ 6394.109727] [<c014e3c7>] mark_held_locks+0x67/0x80
>> > > [ 6394.109738] [<c04dc560>] _spin_unlock_irq+0x20/0x40
>> > > [ 6394.109746] [<c014e5d9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > > [ 6394.109754] [<c04dc500>] _spin_unlock_irqrestore+0x20/0x60
>> > > [ 6394.109763] [<c04d9101>] wait_for_common+0xf1/0x120
>> > > [ 6394.109775] [<c0125c20>] default_wake_function+0x0/0x10
>> > > [ 6394.109783] [<c0381e9e>] usb_stor_msg_common+0xde/0x140
>> > > [ 6394.109792] [<c0381d69>] last_sector_hacks+0x139/0x190
>> > > [ 6394.109802] [<c0382d95>] usb_stor_invoke_transport+0x1f5/0x2a0
>> > > [ 6394.109810] [<c014e3c7>] mark_held_locks+0x67/0x80
>> > > [ 6394.109818] [<c04dc560>] _spin_unlock_irq+0x20/0x40
>> > > [ 6394.109826] [<c014e5d9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > > [ 6394.109834] [<c0383474>] usb_stor_control_thread+0x154/0x1d0
>> > > [ 6394.109843] [<c04dc1cb>] _spin_lock_irqsave+0x4b/0x60
>> > > [ 6394.109851] [<c04dc52c>] _spin_unlock_irqrestore+0x4c/0x60
>> > > [ 6394.109860] [<c0383320>] usb_stor_control_thread+0x0/0x1d0
>> > > [ 6394.109868] [<c014e5d9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > > [ 6394.109876] [<c0383320>] usb_stor_control_thread+0x0/0x1d0
>> > > [ 6394.109885] [<c013def2>] kthread+0x42/0x70
>> > > [ 6394.109893] [<c013deb0>] kthread+0x0/0x70
>> > > [ 6394.109902] [<c0103c03>] kernel_thread_helper+0x7/0x14
>> > > [ 6394.109909] ---[ end trace fd10fd16313bc8b9 ]---
>> > >
>> > > Since there is no change in drivers/usb/storage/transport.c in the
>> > > newest git, I think the problem is still there. Have some one any
>> > > advise? Thanks
>> > >
>> > > --
>> > > Cheers,
>> > > Grissiom
>> >
>> > The same problem still happen in rc2. Here is the new dmesg:
>> >
>> > [ 746.620234] ------------[ cut here ]------------
>> > [ 746.620245] WARNING: at drivers/usb/storage/transport.c:584
>> > last_sector_hacks+0x139/0x190()
>> > [ 746.620252] Hardware name: Inspiron 1501
>> > [ 746.620259] sdb: Successful last sector success at 15701758, device
>> > 0781:5151:0200
>> > [ 746.620265] Modules linked in: fuse ricoh_mmc b43
>> > [ 746.620283] Pid: 2064, comm: usb-storage Not tainted
>> > 2.6.29-rc2-g14-rfkill-nophy-ledon #69
>> > [ 746.620289] Call Trace:
>> > [ 746.620302] [<c012a079>] warn_slowpath+0x99/0xc0
>> > [ 746.620313] [<c014e3a7>] mark_held_locks+0x67/0x80
>> > [ 746.620325] [<c04dcaa0>] _spin_unlock_irq+0x20/0x40
>> > [ 746.620333] [<c014e5b9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > [ 746.620342] [<c04dca00>] _read_unlock+0x20/0x40
>> > [ 746.620350] [<c04d9641>] wait_for_common+0xf1/0x120
>> > [ 746.620361] [<c0125bd0>] default_wake_function+0x0/0x10
>> > [ 746.620370] [<c0381ede>] usb_stor_msg_common+0xde/0x140
>> > [ 746.620379] [<c0381da9>] last_sector_hacks+0x139/0x190
>> > [ 746.620389] [<c0382dd5>] usb_stor_invoke_transport+0x1f5/0x2a0
>> > [ 746.620398] [<c014e3a7>] mark_held_locks+0x67/0x80
>> > [ 746.620406] [<c04dcaa0>] _spin_unlock_irq+0x20/0x40
>> > [ 746.620414] [<c014e5b9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > [ 746.620423] [<c03834b4>] usb_stor_control_thread+0x154/0x1d0
>> > [ 746.620432] [<c04dca6c>] _spin_unlock_irqrestore+0x4c/0x60
>> > [ 746.620441] [<c0383360>] usb_stor_control_thread+0x0/0x1d0
>> > [ 746.620450] [<c014e5b9>] trace_hardirqs_on_caller+0x149/0x1a0
>> > [ 746.620458] [<c0383360>] usb_stor_control_thread+0x0/0x1d0
>> > [ 746.620468] [<c013ded2>] kthread+0x42/0x70
>> > [ 746.620475] [<c013de90>] kthread+0x0/0x70
>> > [ 746.620485] [<c0103c03>] kernel_thread_helper+0x7/0x14
>> > [ 746.620492] ---[ end trace 61eaa6579ab68377 ]---
>> >
>> > This happens exactly when the USB disk plugged in. Can someone fix this?
>
> There's nothing to fix, because nothing is wrong; the warning message
> is purely informational. The reason for making it a warning was so
> that it would show up in the kerneloops project's records. The warning
> itself will be removed before 2.6.29 is released.
>
> Just out of curiousity, what sort of USB disk (vendor and product) are
> your 10d6:1101 and 0781:5151 devices?
I have same problem, ids are:
idVendor 0x08ec M-Systems Flash Disk Pioneers
idProduct 0x0020 TravelDrive
>
> If you want to get rid of the warning in your own kernel, you can do it
> easily enough by removing the WARN() in last_sector_hacks() in
> drivers/usb/storage/transport.c.
>
>> Alan, this is for you :)
>
> In fact, Greg, it was _you_ who first suggested making this a WARN! :-)
>
> Never mind. I'll send in a patch to get rid of the warning in a week
> or two. Unless people start getting really upset and demand it
> sooner...
>
> Alan Stern
>
> --
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--
Regards
dave
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