Messages in this thread | | | From | Willem de Bruijn <> | Date | Fri, 20 Oct 2017 11:39:35 -0400 | Subject | Re: v4.14-rc3/arm64 DABT exception in atomic_inc() / __skb_clone() |
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On Fri, Oct 20, 2017 at 11:14 AM, Dmitry Vyukov <dvyukov@google.com> wrote: > On Fri, Oct 20, 2017 at 4:40 PM, Wei Wei <dotweiba@gmail.com> wrote: >> Sadly, the syzkaller characterized it as a non-reproducible bug and there were empty >> repro files. But if manually executing in VM like this “./syz-execprog -executor= >> ./syz-executor -repeat=0 -procs=16 -cover=0 crash-log”, it crashed when executing exactly >> program 1056 using log0 provided. >> >> I failed to generate the C reproducer with syz-repro as it said “no target compiler” >> in the final step. I would appreciate if you could give some hints. > > syzkaller tries to use aarch64-linux-gnu-gcc when cross-compiling to arm64: > https://github.com/google/syzkaller/blob/master/sys/targets/targets.go#L62 > Try to install g++-aarch64-linux-gnu. > Or how should it be done on your system?
A core dump would also be helpful to root around in and inspect what those registers point to. Thanks for posting the various reports on github, btw.
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