linux-kernel - Re: Linux 2.6.28-rc2 i/o error on /dev/ttyUSB0

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Message-ID: <4909EA24.2020701@aitel.hist.no>
Date:	Thu, 30 Oct 2008 18:08:52 +0100
From:	Helge Hafting <helge.hafting@...el.hist.no>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.28-rc2 i/o error on /dev/ttyUSB0

Alan Cox wrote:
> On Wed, 29 Oct 2008 13:28:42 +0100
> Helge Hafting <helge.hafting@...el.hist.no> wrote:
> 
>> Alan Cox wrote:
>>>> squarely in the "oops, kref's are screwed up" corner, and you should talk 
>>>> to Alan about your particular USB dongle. I bet that bisection would just 
>>>> show you one of the kref commits (eg 4a90f09b "tty: usb-serial krefs" or 
>>>> maybe 7d7b93c14 "tty: kref the tty driver object"). 
> 
> Please try:
> 
> tty: Fix USB kref leak
> 

It looks partially fixed.
No more I/O errors, and the gps unit works fine.

But look at the attached dmesg file - there are WARNINGs still.

Helge Hafting


View attachment "dmesg-patched" of type "text/plain" (61735 bytes)