Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-08 Thread Takashi Iwai
On Thu, 08 Sep 2016 17:14:18 +0200, Dmitry Vyukov wrote: > > On Wed, Sep 7, 2016 at 5:00 PM, Takashi Iwai wrote: > > On Tue, 06 Sep 2016 18:10:30 +0200, > > Takashi Iwai wrote: > >> > >> On Tue, 06 Sep 2016 16:06:08 +0200, > >> Dmitry Vyukov wrote: > >> > > >> > > Do you really see the zero-divis

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-08 Thread Dmitry Vyukov
On Wed, Sep 7, 2016 at 5:00 PM, Takashi Iwai wrote: > On Tue, 06 Sep 2016 18:10:30 +0200, > Takashi Iwai wrote: >> >> On Tue, 06 Sep 2016 16:06:08 +0200, >> Dmitry Vyukov wrote: >> > >> > > Do you really see the zero-division error with sticks=1 fix? That's >> > > unexpected. >> > >> > Yes, just

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-07 Thread Takashi Iwai
On Tue, 06 Sep 2016 18:10:30 +0200, Takashi Iwai wrote: > > On Tue, 06 Sep 2016 16:06:08 +0200, > Dmitry Vyukov wrote: > > > > > Do you really see the zero-division error with sticks=1 fix? That's > > > unexpected. > > > > Yes, just reproduced it again. > > I am on 0693c28cfc8e25f18c25b65a8942c

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-06 Thread Takashi Iwai
On Tue, 06 Sep 2016 16:06:08 +0200, Dmitry Vyukov wrote: > > > Do you really see the zero-division error with sticks=1 fix? That's > > unexpected. > > Yes, just reproduced it again. > I am on 0693c28cfc8e25f18c25b65a8942c026f1854a3c of linux-next now, so > I already have: > commit 6b760bb2c6

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-06 Thread Dmitry Vyukov
On Tue, Sep 6, 2016 at 3:43 PM, Takashi Iwai wrote: > On Tue, 06 Sep 2016 15:09:25 +0200, > Dmitry Vyukov wrote: >> >> On Tue, Sep 6, 2016 at 3:00 PM, Takashi Iwai wrote: >> > On Sat, 03 Sep 2016 14:35:15 +0200, >> > Dmitry Vyukov wrote: >> >> >> >> Hello, >> >> >> >> The following program causes

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-06 Thread Takashi Iwai
On Tue, 06 Sep 2016 15:09:25 +0200, Dmitry Vyukov wrote: > > On Tue, Sep 6, 2016 at 3:00 PM, Takashi Iwai wrote: > > On Sat, 03 Sep 2016 14:35:15 +0200, > > Dmitry Vyukov wrote: > >> > >> Hello, > >> > >> The following program causes either division error or hangs kernel: > >> > >> https://gist.g

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-06 Thread Dmitry Vyukov
On Tue, Sep 6, 2016 at 3:00 PM, Takashi Iwai wrote: > On Sat, 03 Sep 2016 14:35:15 +0200, > Dmitry Vyukov wrote: >> >> Hello, >> >> The following program causes either division error or hangs kernel: >> >> https://gist.githubusercontent.com/dvyukov/b1f33be3bfcc15d629e10db483bee1e4/raw/1574b407e045

Re: sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-06 Thread Takashi Iwai
On Sat, 03 Sep 2016 14:35:15 +0200, Dmitry Vyukov wrote: > > Hello, > > The following program causes either division error or hangs kernel: > > https://gist.githubusercontent.com/dvyukov/b1f33be3bfcc15d629e10db483bee1e4/raw/1574b407e0456bf8277bee423e7731641f5f2c14/gistfile1.txt > > > divide er

sound: divide by 0 in snd_hrtimer_callback (or hang)

2016-09-03 Thread Dmitry Vyukov
Hello, The following program causes either division error or hangs kernel: https://gist.githubusercontent.com/dvyukov/b1f33be3bfcc15d629e10db483bee1e4/raw/1574b407e0456bf8277bee423e7731641f5f2c14/gistfile1.txt divide error: [#1] SMP DEBUG_PAGEALLOC KASAN Dumping ftrace buffer: (ftrace b