On 10/16/20 9:02 AM, Qian Cai wrote: > On Fri, 2020-10-16 at 01:12 -0700, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: b2926c10 Add linux-next specific files for 20201016 >> git tree: linux-next >> console output: https://syzkaller.appspot.com/x/log.txt?x=12fc877f900000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=6160209582f55fb1 >> dashboard link: https://syzkaller.appspot.com/bug?extid=4596e1fcf98efa7d1745 >> compiler: gcc (GCC) 10.1.0-syz 20200507 >> >> Unfortunately, I don't have any reproducer for this issue yet. >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+4596e1fcf98efa7d1745@xxxxxxxxxxxxxxxxxxxxxxxxx >> >> ============================= >> WARNING: suspicious RCU usage >> 5.9.0-next-20201016-syzkaller #0 Not tainted >> ----------------------------- >> include/linux/cgroup.h:494 suspicious rcu_dereference_check() usage! > > Introduced by the linux-next commits: > > 07950f53f85b ("io_uring: COW io_identity on mismatch") > > Can't find the patchset was posted anywhere. Anyway, this should fix it? It's just in testing... I already folded in this change. -- Jens Axboe
