Messages in this thread | | | Date | Sun, 27 Sep 2020 16:57:37 +0200 | From | Borislav Petkov <> | Subject | Re: general protection fault in perf_misc_flags |
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On Sat, Sep 19, 2020 at 01:32:14AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 92ab97ad Merge tag 'sh-for-5.9-part2' of git://git.libc.or.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1069669b900000 > kernel config: https://syzkaller.appspot.com/x/.config?x=cd992d74d6c7e62 > dashboard link: https://syzkaller.appspot.com/bug?extid=ce179bc99e64377c24bc > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
All below is AFAICT:
This compiler you're using is not some official release but some random commit before the v10 release:
$ git show c2443155a0fb245c8f17f2c1c72b6ea391e86e81 Author: Hans Wennborg <hans@chromium.org> Date: Sat Nov 30 14:20:11 2019 +0100
Revert 651f07908a1 "[AArch64] Don't combine callee-save and local stack adjustment when optimizing for size" ...
$ git describe c2443155a0fb245c8f17f2c1c72b6ea391e86e81 llvmorg-10-init-10900-gc2443155a0fb
The v10 release is:
$ git show llvmorg-10.0.0 tag llvmorg-10.0.0 Tagger: Hans Wennborg <hans@chromium.org> Date: Tue Mar 24 12:58:58 2020 +0100
Tag 10.0.0
and v10 has reached v10.0.1 in the meantime:
$ git log --oneline c2443155a0fb245c8f17f2c1c72b6ea391e86e81~1..llvmorg-10.0.1 | wc -l 7051
so can you please update your compiler and see if you can still reproduce with 10.0.1 so that we don't waste time chasing a bug which has been likely already fixed in one of those >7K commits.
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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