linux-kernel - Re: Linux 2.6.38-rc6

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Message-ID: <AANLkTinxfP5jGWy+E2ymedgFPEwnHhmb6n86PCPik1M5@mail.gmail.com>
Date:	Wed, 23 Feb 2011 17:43:33 +0800
From:	Jeff Chua <jeff.chua.linux@...il.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.38-rc6

2011/2/22 Linus Torvalds <torvalds@...ux-foundation.org>:
> And for the people who actually reported the regressions (or didn't,
> but have found new ones) - please do update the status of the
> regression. Some of them I'm really feel a lot more happy about if
> they had a note that "yes, I tested with -rc6, and the problem is
> still there". We've fixed a fair number of problems, so it's always
> good to have regression reporters ping us with something like "hey,
> I'm still here, and you may have fixed all those other things, but you
> didn't fix my issue".

I just encountered this reported bug using Bluetooth Intermec scanners
and discovered that the recent kernel has the same problem as reported
below.

https://bugzilla.kernel.org/show_bug.cgi?id=26182  ... the bluetooth
devices would just stop responding after a while.

[ 4533.361959] btusb 8-1:1.0: no reset_resume for driver btusb?
[ 4533.361964] btusb 8-1:1.1: no reset_resume for driver btusb?

It seems to that Fedora doesn't feel this is a big problem, but for
production systems, it's a big deal as the scanners can't connect to
the server.

Seems to relate to this commit. The workabout is to set
usbcore.autosuspend=-1 as command line options, but as this is not
working as intended, then it should be either be fixed or reverted.

Thanks,
Jeff.



commit 556ea928f78a390fe16ae584e6433dff304d3014
Author: Matthew Garrett <mjg@...hat.com>
Date:   Thu Sep 16 13:58:15 2010 -0400

    Bluetooth: Enable USB autosuspend by default on btusb

    We've done this for a while in Fedora without any obvious problems other
    than some interaction with input devices. Those should be fixed now, so
    let's try this in mainline.

    Signed-off-by: Matthew Garrett <mjg@...hat.com>
    Acked-by: Marcel Holtmann <marcel@...tmann.org>
    Signed-off-by: Gustavo F. Padovan <padovan@...fusion.mobi>
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