Messages in this thread | | | Subject | Re: [REGRESSION][3.8.-rc1][ INFO: possible circular locking dependency detected ] | From | Peter Hurley <> | Date | Thu, 27 Dec 2012 08:03:24 -0500 |
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On Thu, 2012-12-27 at 16:36 +0800, Shawn Guo wrote: > On Wed, Dec 26, 2012 at 10:34:39AM +0800, Shawn Guo wrote: > > It seems that I'm running into the same locking issue. My setup is: > > > > - i.MX28 (ARM) > > - v3.8-rc1 > > - mxs_defconfig > - The warning is seen when LCD is blanking > > > > The warning disappears after reverting patch daee779 (console: implement > lockdep support for console_lock). Is it suggesting that the mxs > frame buffer driver (drivers/video/mxsfb.c) is doing something bad? > > Shawn > > > > > [ 602.229899] ====================================================== > > [ 602.229905] [ INFO: possible circular locking dependency detected ] > > [ 602.229926] 3.8.0-rc1-00003-gde4ae7f #767 Not tainted > > [ 602.229933] ------------------------------------------------------- > > [ 602.229951] kworker/0:1/21 is trying to acquire lock: > > [ 602.230037] ((fb_notifier_list).rwsem){.+.+.+}, at: [<c0041f34>] __blocking_notifier_call_chain+0x2c/0x60
You want this patch https://patchwork.kernel.org/patch/1757061/
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