Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [syzbot] INFO: rcu detected stall in syscall_exit_to_user_mode | Date | Mon, 13 Sep 2021 12:28:14 +0200 |
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On Tue, Aug 31 2021 at 15:45, Hillf Danton wrote: > On Mon, 30 Aug 2021 12:58:58 +0200 Dmitry Vyukov wrote: >>> ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 >>> mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861 >>> __run_hrtimer kernel/time/hrtimer.c:1537 [inline] >>> __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 >>> hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 >>> __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 > > Add debug info only to help kasan catch the timer running longer than 2 ticks. > > Is it anything in the right direction, tglx?
Not really. As Dmitry pointed out this seems to be related to mac80211_hwsim and if you look at the above stacktrace then how is adding something to the timer wheel helpful?
Thanks,
tglx
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