Re: BUG: soft lockup in ieee80211_tasklet_handler

2021-03-04 Thread Johannes Berg
On Tue, 2021-03-02 at 20:01 +0100, Dmitry Vyukov wrote: > > Looking at the reproducer that mostly contains just perf_event_open, > It may be the old known issue of perf_event_open with some extreme > parameters bringing down kernel. > +perf maintainers > And as far as I remember +Peter had some pa

Re: BUG: soft lockup in ieee80211_tasklet_handler

2021-03-03 Thread Dmitry Vyukov
On Wed, Mar 3, 2021 at 9:59 AM Hillf Danton wrote: > > On Tue, 02 Mar 2021 15:18:16 +0100 Johannes Berg wrote: > > On Wed, 2021-02-24 at 10:30 +0800, Hillf Danton wrote: > > > > > > Add budget for the 80211 softint handler - it's feasible not to try to > > > build the giant pyramid in a week. > >

Re: BUG: soft lockup in ieee80211_tasklet_handler

2021-03-02 Thread Dmitry Vyukov
On Tue, Mar 2, 2021 at 3:18 PM Johannes Berg wrote: > > On Wed, 2021-02-24 at 10:30 +0800, Hillf Danton wrote: > > > > Add budget for the 80211 softint handler - it's feasible not to try to > > build the giant pyramid in a week. > > > > --- x/net/mac80211/main.c > > +++ y/net/mac80211/main.c > > @

Re: BUG: soft lockup in ieee80211_tasklet_handler

2021-03-02 Thread Johannes Berg
On Wed, 2021-02-24 at 10:30 +0800, Hillf Danton wrote: > > Add budget for the 80211 softint handler - it's feasible not to try to > build the giant pyramid in a week. > > --- x/net/mac80211/main.c > +++ y/net/mac80211/main.c > @@ -224,9 +224,15 @@ static void ieee80211_tasklet_handler(un > { >

Re: BUG: soft lockup in ieee80211_tasklet_handler

2021-03-02 Thread syzbot
syzbot has found a reproducer for the following issue on: HEAD commit:7a7fd0de Merge branch 'kmap-conversion-for-5.12' of git://.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14df34ead0 kernel config: https://syzkaller.appspot.com/x/.config?x=e0da2d0

BUG: soft lockup in ieee80211_tasklet_handler

2021-02-23 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:3b9cdafb Merge tag 'pinctrl-v5.12-1' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=153024bcd0 kernel config: https://syzkaller.appspot.com/x/.config?x=22008533485b2c35 das