On Mon, Apr 29, 2013 at 12:59 PM, Stephen Warren <[email protected]> wrote: > On 04/29/13 12:41, Bryan Wu wrote: >> >> Forward to ARM and Tegra mail list. >> >> ---------- Forwarded message ---------- >> From: Bryan Wu <[email protected]> >> Date: Mon, Apr 29, 2013 at 11:15 AM >> Subject: Tegra 30 System hangs because of commit "pinctrl: move >> subsystem mutex to pinctrl_dev struct" >> To: [email protected], Linus Walleij <[email protected]> >> Cc: Stephen Warren <[email protected]>, >> "[email protected]" <[email protected]> >> >> >> Hi Patrice and Linus, >> >> I'm running linux-next on my Tegra 30 system everyday. But since >> next-20130426 release, the linux-next kernel will hang on my Tegra 30 >> boards like Cardhu and Beaver. >> >> After some bisect and comparing to next-20130424, I found the commit >> "pinctrl: move subsystem mutex to pinctrl_dev struct" introduced this >> issue. If I simply revert this patch in next-20130429, system boots up >> as before. >> >> Could you please help to check this? > > > I would suggest simply dropping or reverting this patch; I had pointed out a > long time ago that it was unlikely to be correct. > > My guess/suspicion is a recursive lock attempt during processing hogs during > pinctrl device registration, or perhaps during dt->map conversion. Bryan, > are you able to confirm this?
Oh, no worries now. It was fixed in pinctrl for-next branch. I guess linux-next will be update soon. I will keep testing this when new linux-next is out. -Bryan -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
