Good day, dear maintainers,
We found a bug using a modified kernel configuration file used by syzbot.
We enhanced the coverage of the configuration file using our tool, klocalizer.
Kernel Branch: 6.2.0-rc3-next-20230112
Kernel config: https://drive.google.com/file/d/1Zg-NZ5s04wPVdO8cfpvQjatI-0VAVjZV/view?usp=sharing
Unfortunately, we do not have a reproducer yet.
Thank you!
Best regards,
Sanan Hasanov
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DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 5 PID: 7278 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 5 PID: 7278 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:221 [inline]
WARNING: CPU: 5 PID: 7278 at kernel/locking/lockdep.c:232 check_deadlock kernel/locking/lockdep.c:3017 [inline]
WARNING: CPU: 5 PID: 7278 at kernel/locking/lockdep.c:232 validate_chain kernel/locking/lockdep.c:3819 [inline]
WARNING: CPU: 5 PID: 7278 at kernel/locking/lockdep.c:232 __lock_acquire+0x24b8/0x5170 kernel/locking/lockdep.c:5056
Modules linked in:
CPU: 5 PID: 7278 Comm: systemd-udevd Not tainted 6.2.0-rc3-next-20230112 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:221 [inline]
RIP: 0010:check_deadlock kernel/locking/lockdep.c:3017 [inline]
RIP: 0010:validate_chain kernel/locking/lockdep.c:3819 [inline]
RIP: 0010:__lock_acquire+0x24b8/0x5170 kernel/locking/lockdep.c:5056