Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-27 Thread Takashi Iwai
On Fri, 27 Jul 2018 07:51:04 +0200, Dae R. Jeong wrote: > > On Fri, Jul 27, 2018 at 07:20:30AM +0200, Takashi Iwai wrote: > > I think there is a mistake on the reported-by tag. > The reported-by tag (e4c8abb920ef...) is for WARNING in port_delete. > I guess the tag below is correct. >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-27 Thread Takashi Iwai
On Fri, 27 Jul 2018 07:51:04 +0200, Dae R. Jeong wrote: > > On Fri, Jul 27, 2018 at 07:20:30AM +0200, Takashi Iwai wrote: > > I think there is a mistake on the reported-by tag. > The reported-by tag (e4c8abb920ef...) is for WARNING in port_delete. > I guess the tag below is correct. >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dae R. Jeong
On Fri, Jul 27, 2018 at 07:20:30AM +0200, Takashi Iwai wrote: I think there is a mistake on the reported-by tag. The reported-by tag (e4c8abb920ef...) is for WARNING in port_delete. I guess the tag below is correct. Reported-by: syzbot+619d9f40141d826b0...@syzkaller.appspotmail.com Could you

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dae R. Jeong
On Fri, Jul 27, 2018 at 07:20:30AM +0200, Takashi Iwai wrote: I think there is a mistake on the reported-by tag. The reported-by tag (e4c8abb920ef...) is for WARNING in port_delete. I guess the tag below is correct. Reported-by: syzbot+619d9f40141d826b0...@syzkaller.appspotmail.com Could you

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Fri, 27 Jul 2018 06:13:22 +0200, Dae R. Jeong wrote: > > I tested it and it worked. > Thanks a lot! Good to hear. Below is the final patch with a proper comment (and with syzbot reported-by, too) I'm going to queue to sound.git tree. thanks, Takashi -- 8< -- From: Takashi Iwai Subject:

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Fri, 27 Jul 2018 06:13:22 +0200, Dae R. Jeong wrote: > > I tested it and it worked. > Thanks a lot! Good to hear. Below is the final patch with a proper comment (and with syzbot reported-by, too) I'm going to queue to sound.git tree. thanks, Takashi -- 8< -- From: Takashi Iwai Subject:

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dae R. Jeong
On Thu, Jul 26, 2018 at 02:50:25PM +0200, Takashi Iwai wrote: > On Thu, 26 Jul 2018 07:53:26 +0200, > Dae R. Jeong wrote: > > > > Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger > > > > This crash has been found in v4.18-rc3 using Race

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dae R. Jeong
On Thu, Jul 26, 2018 at 02:50:25PM +0200, Takashi Iwai wrote: > On Thu, 26 Jul 2018 07:53:26 +0200, > Dae R. Jeong wrote: > > > > Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger > > > > This crash has been found in v4.18-rc3 using Race

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Thu, 26 Jul 2018 14:58:59 +0200, Dmitry Vyukov wrote: > > On Thu, Jul 26, 2018 at 2:50 PM, Takashi Iwai wrote: > > On Thu, 26 Jul 2018 07:53:26 +0200, > > Dae R. Jeong wrote: > >> > >> Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Thu, 26 Jul 2018 14:58:59 +0200, Dmitry Vyukov wrote: > > On Thu, Jul 26, 2018 at 2:50 PM, Takashi Iwai wrote: > > On Thu, 26 Jul 2018 07:53:26 +0200, > > Dae R. Jeong wrote: > >> > >> Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dmitry Vyukov
On Thu, Jul 26, 2018 at 2:50 PM, Takashi Iwai wrote: > On Thu, 26 Jul 2018 07:53:26 +0200, > Dae R. Jeong wrote: >> >> Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger >> >> This crash has been found in v4.18-rc3 using RaceFuzzer (a modified >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Dmitry Vyukov
On Thu, Jul 26, 2018 at 2:50 PM, Takashi Iwai wrote: > On Thu, 26 Jul 2018 07:53:26 +0200, > Dae R. Jeong wrote: >> >> Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger >> >> This crash has been found in v4.18-rc3 using RaceFuzzer (a modified >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Thu, 26 Jul 2018 07:53:26 +0200, Dae R. Jeong wrote: > > Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger > > This crash has been found in v4.18-rc3 using RaceFuzzer (a modified > version of Syzkaller), which we describe more at the end of this >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-07-26 Thread Takashi Iwai
On Thu, 26 Jul 2018 07:53:26 +0200, Dae R. Jeong wrote: > > Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger > > This crash has been found in v4.18-rc3 using RaceFuzzer (a modified > version of Syzkaller), which we describe more at the end of this >

BUG: soft lockup in snd_virmidi_output_trigger

2018-07-25 Thread Dae R. Jeong
Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger This crash has been found in v4.18-rc3 using RaceFuzzer (a modified version of Syzkaller), which we describe more at the end of this report. Note that this bug is previously reported by Syzkaller a few month ago. (https

BUG: soft lockup in snd_virmidi_output_trigger

2018-07-25 Thread Dae R. Jeong
Reporting the crash: BUG: soft lockup in snd_virmidi_output_trigger This crash has been found in v4.18-rc3 using RaceFuzzer (a modified version of Syzkaller), which we describe more at the end of this report. Note that this bug is previously reported by Syzkaller a few month ago. (https

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-04-09 Thread Dmitry Vyukov
On Mon, Apr 9, 2018 at 3:03 PM, Takashi Iwai wrote: > On Mon, 09 Apr 2018 07:58:01 +0200, > syzbot wrote: >> >> Hello, >> >> syzbot hit the following crash on upstream commit >> 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) >> Merge tag 'mtd/for-4.17' of

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-04-09 Thread Dmitry Vyukov
On Mon, Apr 9, 2018 at 3:03 PM, Takashi Iwai wrote: > On Mon, 09 Apr 2018 07:58:01 +0200, > syzbot wrote: >> >> Hello, >> >> syzbot hit the following crash on upstream commit >> 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) >> Merge tag 'mtd/for-4.17' of

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-04-09 Thread Takashi Iwai
On Mon, 09 Apr 2018 07:58:01 +0200, syzbot wrote: > > Hello, > > syzbot hit the following crash on upstream commit > 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) > Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd > syzbot dashboard link: >

Re: BUG: soft lockup in snd_virmidi_output_trigger

2018-04-09 Thread Takashi Iwai
On Mon, 09 Apr 2018 07:58:01 +0200, syzbot wrote: > > Hello, > > syzbot hit the following crash on upstream commit > 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) > Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd > syzbot dashboard link: >

BUG: soft lockup in snd_virmidi_output_trigger

2018-04-08 Thread syzbot
Hello, syzbot hit the following crash on upstream commit 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=619d9f40141d826b097e Unfortunately, I

BUG: soft lockup in snd_virmidi_output_trigger

2018-04-08 Thread syzbot
Hello, syzbot hit the following crash on upstream commit 3fd14cdcc05a682b03743683ce3a726898b20555 (Fri Apr 6 19:15:41 2018 +) Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=619d9f40141d826b097e Unfortunately, I