Messages in this thread | | | Date | Wed, 27 Mar 2019 10:28:19 +1100 (AEDT) | From | Finn Thain <> | Subject | Re: INFO: rcu detected stall in __perf_sw_event |
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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.
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> 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
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