On 4 April 2014 13:16, Jet Chen <jet.c...@intel.com> wrote: > Hi Viresh, > > I changed your print message as you suggested. > > diff --git a/kernel/timer.c b/kernel/timer.c > index 6c3a371..193101d 100644 > --- a/kernel/timer.c > +++ b/kernel/timer.c > @@ -1617,8 +1617,8 @@ static void migrate_timer_list(struct tvec_base > *new_base, struct list_head *hea > > /* Check if CPU still has pinned timers */ > if (unlikely(WARN(is_pinned, > - "%s: can't migrate pinned timer: %p, > deactivating it\n", > - __func__, timer))) > + "%s: can't migrate pinned timer: %p, > timer->function: %p,deactivating it\n", > + __func__, timer, timer->function))) > continue; > > Then I reproduced the issue, and got the dmesg output, > > [ 37.918406] migrate_timer_list: can't migrate pinned timer: > ffffffff81f06a60, timer->function: ffffffff810d7010,deactivating it > > We reproduced this issue for several times in our LKP system. The address of > timer ffffffff81f06a60 is very constant. So is timer->function, I believe. > > Hope this information will help you. Please feel free to tell me what else I > can do to help you.
Hi Jet, Thanks a lot. Yes that's pretty helpful.. But I need some more help from you.. I don't have any idea which function has this address in your kernel: ffffffff810d7010 :) Can you please debug that a bit more? You need to find which function this address belongs to. You can try that using objdump on your vmlinux. Some help can be found here: Documentation/BUG-HUNTING Thanks in Advance. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
