Re: [syzbot] [btrfs?] [netfilter?] BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! (2)

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On Wed, Jul 19, 2023 at 02:32:51AM -0700, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    e40939bbfc68 Merge branch 'for-next/core' into for-kernelci
> 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=15d92aaaa80000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=c4a2640e4213bc2f
> dashboard link: https://syzkaller.appspot.com/bug?extid=9bbbacfbf1e04d5221f7
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: arm64
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=149b2d66a80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1214348aa80000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/9d87aa312c0e/disk-e40939bb.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/22a11d32a8b2/vmlinux-e40939bb.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/0978b5788b52/Image-e40939bb.gz.xz

#syz unset btrfs

The MAX_LOCKDEP_CHAIN_HLOCKS bugs/warnings can be worked around by
configuration, otherwise are considered invalid. This report has also
'netfilter' label so I'm not closing it right away.



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