From: Oliver Neukum <oliver@neukum.org>
To: Jeff Chua <jeff.chua.linux@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Jeff Chua <jeff.tw.chua@gmail.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
"Greg Kroah-Hartman" <gregkh@suse.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
petr@vmware.com, Eli Collins <ecollins@vmware.com>
Subject: Re: commit 554f76962d3a6eb5110415f1591aca83f96a84ae hangs USB for vmware 7.0.1
Date: Sat, 6 Mar 2010 10:03:50 +0100 [thread overview]
Message-ID: <201003061003.50671.oliver@neukum.org> (raw)
In-Reply-To: <b6a2187b1003052122w105851abhd54a32f77aef22c4@mail.gmail.com>
Am Samstag, 6. März 2010 06:22:48 schrieb Jeff Chua:
> It seems to hang trying to read from /proc/bus/usb/devices.
>
> So, next I just try to "cat /proc/bus/usb/devices" and it hangs as well.
>
> Reverting the commit makes "cat /proc/bus/usb/devices" works again.
>
> Does this happen to me only?
As far as I can tell, yes. I cannot replicate it.
Please get me at least a sysrq-T trace.
There's no obvious place usb_device_read() takes usbfs_mutex.
Regards
Oliver
prev parent reply other threads:[~2010-03-06 9:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-05 22:18 commit 554f76962d3a6eb5110415f1591aca83f96a84ae hangs USB for vmware 7.0.1 Jeff Chua
2010-03-05 22:40 ` Linus Torvalds
2010-03-06 3:45 ` Petr Vandrovec
[not found] ` <b6a2187b1003052129l7703dee6s6e820b8ca18b9e2d@mail.gmail.com>
2010-03-06 6:46 ` Petr Vandrovec
2010-03-06 9:33 ` Dmitry Torokhov
2010-03-06 11:12 ` Oliver Neukum
2010-03-06 18:48 ` Heinz Diehl
[not found] ` <b6a2187b1003052122w105851abhd54a32f77aef22c4@mail.gmail.com>
2010-03-06 9:03 ` Oliver Neukum [this message]
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