On Sat, 2013-03-02 at 15:35 +0700, Emmanuel Benisty wrote: > On Sat, Mar 2, 2013 at 2:08 PM, Michel Lespinasse <walken@xxxxxxxxxx> wrote: > > On Sat, Mar 2, 2013 at 12:43 PM, Emmanuel Benisty <benisty.e@xxxxxxxxx> wrote: > >> Hi, > >> > >> On Sat, Mar 2, 2013 at 7:16 AM, Davidlohr Bueso <davidlohr.bueso@xxxxxx> wrote: > >>> The following set of not-thoroughly-tested patches are based on the > >>> discussion of holding the ipc lock unnecessarily, such as for permissions > >>> and security checks: > >>> > >>> https://lkml.org/lkml/2013/2/28/540 > >>> > >>> Patch 0/1: Introduces new functions, analogous to ipc_lock and ipc_lock_check > >>> in the ipc utility code, allowing to obtain the ipc object without holding the lock. > >>> > >>> Patch 0/2: Use the new functions and only acquire the ipc lock when needed. > >> > >> Not sure how much a work in progress this is but my machine dies > >> immediately when I start chromium, crappy mobile phone picture here: > >> http://i.imgur.com/S0hfPz3.jpg > > > > We are missing the top of the trace there, so it's hard to be sure - > > however, this could well be caused by the if (!out) check (instead of > > if (IS_ERR(out)) that I noticed in patch 1/2. > > Merci Michel but unfortunately, I'm still getting the same issue. Will try to reproduce (and further testing on other machines) and debug later today. Thanks for testing, Davidlohr -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html