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Date:	Sat, 23 Aug 2014 09:37:19 +0200
From:	Claudio Bizzarri <>
To:	Hans de Goede <>
Cc:	"Nyman, Mathias" <>,
	Matt <>, Gerd Hoffmann <>,
	Sarah Sharp <>,
	Linux Kernel <>,
	USB list <>
Subject: Re: Kernel 3.16.0 USB crash

Ok, thank you Hans.

When I connect my external USB disk I've 30 seconds before my laptop
freezes: with top command I cannot view nothing: no abnormal cpu
usage, no any strange memory usage.
If I remove disk before 30 seconds my HP EliteBook 850G1 keeps working
as usual. Can I use these 30 seconds to extract some informations that
help to determine what's the problem? How?
/var/log/syslog and dmesg haven't any messages.

System lock is complete: also key CAPS LOCK does not work anymore.

I've tried without X: when computer locks  3 lines appear on console
that are not registered on syslog, I've copied them on paper.

[ 1200.352042] IP: [<ffffffff8179393f>] _raw_spin_lock_irqsave+ 0x01f/0x060
[ 1200.352045] PGD 0
[ 1200.352048] Oops: 0002 [#1] SMP


2014-08-22 20:26 GMT+02:00 Hans de Goede <>:
> There is no need to try my patch, since the descriptors already limit
> qdepth to 32. No idea what is going on here then.
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