Subject: 2.6: USB Storage hangs machine on bootup for ~2 minutes
From: Parag Warudkar <kernel-stuff@comcast.net>
To: USB development list <linux-usb-devel@lists.sourceforge.net>
Cc: lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>
In-Reply-To: <Pine.LNX.4.44L0.0502041539350.674-100000@ida.rowland.org>
References: <Pine.LNX.4.44L0.0502041539350.674-100000@ida.rowland.org>
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Date: Sun, 06 Feb 2005 00:18:00 -0500
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I am running FC3 on a AMD64 laptop. The laptop has 3 USB ports. If I
attach any usb-storage device (Sandisk Cruiser usb drive, iPod, Maxtor
external drive etc.) the kernel hangs while booting. The hang occurs
shortly after the usb-storage module is loaded. The machine does not
respond to anything other than the power button. This hang lasts for
about 2 minutes after which boot resumes and goes on fine. 

When it is hung, the usb storage devices are not being accessed - the
iPOD for e.g does not show the Do not Disconnect sign when it is hung -
it shows that after the boot resumes. Might have something to do with
the recent "Waiting for device to settle" change in usb-storage?


A 

The boot goes on without a hang if there are no usb-storage devices
attached to the system. (USB mouse is fine for example, so the hang
happens only in case of usb-storage devices.)

PS - This bug was also reported to Redhat Bugzilla some time ago - I
haven't got any feedback so far.

Parag


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