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From: Takashi Iwai <tiwai@suse.de>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>,
	Vegard Nossum <vegard.nossum@oracle.com>,
	Jaroslav Kysela <perex@perex.cz>,
	Kangjie Lu <kangjielu@gmail.com>,
	alsa-devel@alsa-project.org, LKML <linux-kernel@vger.kernel.org>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: sound: divide by 0 in snd_hrtimer_callback (or hang)
Date: Tue, 06 Sep 2016 18:10:30 +0200	[thread overview]
Message-ID: <s5hk2epm2kp.wl-tiwai@suse.de> (raw)
In-Reply-To: <CACT4Y+b506FW+f8SqRe=FmYnG+wnZ=jL+jO02JM2C9c=VuxoXg@mail.gmail.com>

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 6b760bb2c63a9e322c0e4a0b5daf335ad93d5a33
>     ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
> 
> Compiled the program verbatim and run it using stress utility (http
> s://godoc.org/golang.org/x/tools/cmd/stress namely just runs the
> program in parallel loop) and instantly get the following crash.

OK, I'll take a deeper look.


thanks,

Takashi

  reply	other threads:[~2016-09-06 16:10 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-03 12:35 Dmitry Vyukov
2016-09-06 13:00 ` Takashi Iwai
2016-09-06 13:09   ` Dmitry Vyukov
2016-09-06 13:43     ` Takashi Iwai
2016-09-06 14:06       ` Dmitry Vyukov
2016-09-06 16:10         ` Takashi Iwai [this message]
2016-09-07 15:00           ` Takashi Iwai
2016-09-08 15:14             ` Dmitry Vyukov
2016-09-08 15:48               ` Takashi Iwai
2016-09-06 14:08       ` Dmitry Vyukov

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