On Thu, Apr 19, 2018 at 9:54 AM, syzbot <syzbot+f2a1633f249cece865fe@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzbot hit the following crash on upstream commit > a27fc14219f2e3c4a46ba9177b04d9b52c875532 (Mon Apr 16 21:07:39 2018 +0000) > Merge branch 'parisc-4.17-3' of > git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux > syzbot dashboard link: > https://syzkaller.appspot.com/bug?extid=f2a1633f249cece865fe > > So far this crash happened 8 times on upstream. > C reproducer: https://syzkaller.appspot.com/x/repro.c?id=6258099799195648 > syzkaller reproducer: > https://syzkaller.appspot.com/x/repro.syz?id=5162423375888384 > Raw console output: > https://syzkaller.appspot.com/x/log.txt?id=4959118615904256 > Kernel config: > https://syzkaller.appspot.com/x/.config?id=-5914490758943236750 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+f2a1633f249cece865fe@xxxxxxxxxxxxxxxxxxxxxxxxx > It will help syzbot understand when the bug is fixed. See footer for > details. > If you forward the report, please keep this part and the footer. +mm maintainers (syzbot wasn't able to find maintainers because there is no stack trace and no file names to give to get_maintainers.pl) There is a single-threaded reproducer, so should be an easy one. > BUG: Bad rss-counter state mm:00000000d5737ed7 idx:1 val:1 > BUG: Bad rss-counter state mm:00000000d5737ed7 idx:3 val:-1 > > > --- > This bug is generated by a dumb bot. It may contain errors. > See https://goo.gl/tpsmEJ for details. > Direct all questions to syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. > If you forgot to add the Reported-by tag, once the fix for this bug is > merged > into any tree, please reply to this email with: > #syz fix: exact-commit-title > If you want to test a patch for this bug, please reply with: > #syz test: git://repo/address.git branch > and provide the patch inline or as an attachment. > To mark this as a duplicate of another syzbot report, please reply with: > #syz dup: exact-subject-of-another-report > If it's a one-off invalid bug report, please reply with: > #syz invalid > Note: if the crash happens again, it will cause creation of a new bug > report. > Note: all commands must start from beginning of the line in the email body. > > -- > 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@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/000000000000f6e29f056a2edff8%40google.com. > For more options, visit https://groups.google.com/d/optout.
