Messages in this thread | | | From | Dmitry Vyukov <> | Date | Thu, 28 Mar 2019 09:21:33 +0100 | Subject | Re: INFO: rcu detected stall in __perf_sw_event |
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On Wed, Mar 27, 2019 at 12:28 AM Finn Thain <fthain@telegraphics.com.au> wrote: > > On Tue, 26 Mar 2019, syzbot wrote: > > > syzbot has bisected this bug to: > > > > commit cf85d89562f39cc7ae73de54639f1915a9195b7a > > Author: Finn Thain <fthain@telegraphics.com.au> > > Date: Fri May 25 07:34:36 2018 +0000 > > > > m68k/mac: Enable PDMA for PowerBook 500 series > > > > Looks like a false positive. But if you really are running syzkaller on a > PowerBook 500, you'll want to check that you have an FPU, otherwise a CPU > erratum will probably mess up your results.
Agree. I've included it into the big bisection analysis as "hard to reproduce" case: https://lkml.org/lkml/2019/3/27/788
> -- > > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1226cb8b200000 > > start commit: b0314565 Merge tag 'for_linus' of git://git.kernel.org/pub.. > > git tree: upstream > > final crash: https://syzkaller.appspot.com/x/report.txt?x=1126cb8b200000 > > console output: https://syzkaller.appspot.com/x/log.txt?x=1626cb8b200000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=8f00801d7b7c4fe6 > > dashboard link: https://syzkaller.appspot.com/bug?extid=a41ac89a0712acde0e84 > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1707cd2f400000 > > > > Reported-by: syzbot+a41ac89a0712acde0e84@syzkaller.appspotmail.com > > Fixes: cf85d89562f3 ("m68k/mac: Enable PDMA for PowerBook 500 series") > > > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/alpine.LNX.2.21.1903271021290.994%40nippy.intranet. > For more options, visit https://groups.google.com/d/optout.
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