On Sun, Mar 17, 2019 at 12:04 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Sun, Mar 17, 2019 at 03:43:01AM -0700, syzbot wrote: > > syzbot has bisected this bug to: > > > > commit f1e3e92135202ff3d95195393ee62808c109208c > > Author: Malcolm Priestley <tvboxspy@xxxxxxxxx> > > Date: Wed Jul 22 18:16:42 2015 +0000 > > > > staging: vt6655: fix tagSRxDesc -> next_desc type > > > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=111856cf200000 > > start commit: f1e3e921 staging: vt6655: fix tagSRxDesc -> next_desc type > > git tree: upstream > > final crash: https://syzkaller.appspot.com/x/report.txt?x=131856cf200000 > > console output: https://syzkaller.appspot.com/x/log.txt?x=151856cf200000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=7132344728e7ec3f > > dashboard link: https://syzkaller.appspot.com/bug?extid=111bc509cd9740d7e4aa > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16d4966cc00000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10c492d0c00000 > > > > Reported-by: syzbot+111bc509cd9740d7e4aa@xxxxxxxxxxxxxxxxxxxxxxxxx > > Fixes: f1e3e921 ("staging: vt6655: fix tagSRxDesc -> next_desc type") > > I think syzbot is a bit confused here, how can this simple patch, where > you do not have the hardware for this driver, cause this problem? Yes, I guess so. This perf_event_open+sched_setattr combo bug causes problems with hangs at random places, developers looking at these hangs again and again, incorrect bisection. I would be useful if somebody knowledgeable in perf/sched look at it. _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
