From: guenter.roeck@ericsson.com (Guenter Roeck)
To: linux-arm-kernel@lists.infradead.org
Subject: [2.6.37 -> 2.6.38 regression] "mv64xxx: I2C bus locked, block: 1, time_left: 0" every few seconds
Date: Sat, 7 Jan 2012 16:45:02 -0800 [thread overview]
Message-ID: <20120108004502.GA20549@ericsson.com> (raw)
In-Reply-To: <20120101073255.GA2402@elie.hsd1.il.comcast.net>
On Sun, Jan 01, 2012 at 01:32:55AM -0600, Jonathan Nieder wrote:
> Hi,
>
> Roman Mamedov wrote[1]:
>
> > This bug is still present for me in the latest kernel version in
> > Debian testing (3.1.6).
> >
> > The last properly working kernel version seems to be:
> [...]
> > And the problem occurs since:
> [...]
>
> Thanks. Arnaud, any hints? To summarize:
>
> - Michael Ott reported with Debian kernel 2.6.38-3 (which is closely
> based on stable v2.6.38.2):
>
> syslog tell me every few seconds:
> i2c i2c-0: mv64xxx: I2C bus locked, block: 1, time_left: 0
>
> - Manuel Roeder reported the same and found that upstream v2.6.38
> triggers the problem and v2.6.37.6 does not.
>
> - Roman Mamedov finds the bug present in Debian 3.1.6-1 (which
> is closely based on stable v3.1.6) and Debian 2.6.37-2 (based on
> stable v2.6.37.2) but not Debian 2.6.37-1 (based on mainline
> v2.6.37).
>
> The regression range described above seems a little inconsistent to
> me, so maybe there's something more going on.
>
Points to commit eda6bee6c7e67b5bd17bdbced0926f5687f686d5 (i2c-mv64xxx: send repeated START
between messages in xfer). Maybe you can back it out and see if it makes a difference.
Guenter
next parent reply other threads:[~2012-01-08 0:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20120101042401.4bef017e@natsu>
[not found] ` <20120101073255.GA2402@elie.hsd1.il.comcast.net>
2012-01-08 0:45 ` Guenter Roeck [this message]
2012-01-30 20:44 ` [2.6.37 -> 2.6.38 regression] "mv64xxx: I2C bus locked, block: 1, time_left: 0" every few seconds Roman Mamedov
2012-01-30 20:53 ` Roman Mamedov
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