On Tue, Feb 18, 2025 at 09:47:27AM -0800, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a64dcfb451e2 Linux 6.14-rc2 > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=12398f18580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c9c47badcd079906 > dashboard link: https://syzkaller.appspot.com/bug?extid=ae5b16688c0c675b1a1f > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > userspace arch: arm64 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/c0a862fcec77/disk-a64dcfb4.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/f03793fc001b/vmlinux-a64dcfb4.xz > kernel image: https://storage.googleapis.com/syzbot-assets/ae71c33eae14/Image-a64dcfb4.gz.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+ae5b16688c0c675b1a1f@xxxxxxxxxxxxxxxxxxxxxxxxx > > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 6430 at kernel/rcu/srcutree.c:1798 srcu_invoke_callbacks+0x368/0x3d8 This is weird, happens to be WARN_ON_ONCE(ready_cbs.len); in srcu_invoke_callbacks(). Perhaps, stack corruption or the SRCU cblist's ->seglen got corrupted? thanks, - Joel
