ci2 starts bisection 2024-11-15 16:04:24.38840532 +0000 UTC m=+40702.012063844 bisecting fixing commit since 458ce51d0356ee60c93f9f807d9827cf2a41643d building syzkaller on 55d6f11d1578896a20515e21906295fcf2c126aa ensuring issue is reproducible on original commit 458ce51d0356ee60c93f9f807d9827cf2a41643d testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eda0978899ce418bcfe31aacd49b456c6f3d405ac05fc4394d6a4b62b4c2d06e all runs: crashed: WARNING: bad unlock balance in unlock_two_nondirectories representative crash: WARNING: bad unlock balance in unlock_two_nondirectories, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3546577497cda91be76901ade1c6fda695793ccdba64c48e7622c87c2ac50e96 all runs: crashed: WARNING: bad unlock balance in unlock_two_nondirectories representative crash: WARNING: bad unlock balance in unlock_two_nondirectories, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3706 full=7265 leaves diff=1981 split chunks (needed=false): <1981> split chunk #0 of len 1981 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ad5cd91ea198b48a7f1516a4ace492ba855441d018c0a5b67033109edaf2251e all runs: crashed: WARNING: bad unlock balance in unlock_two_nondirectories representative crash: WARNING: bad unlock balance in unlock_two_nondirectories, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0e0242ada6cd5c908cfeec7c5f3ea9956271775b0421bc05a796b5d30d6419a6 all runs: crashed: WARNING: bad unlock balance in unlock_two_nondirectories representative crash: WARNING: bad unlock balance in unlock_two_nondirectories, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e2effb20bbdf88b46a7f17aeafa246b4fed1d991191c95b1430c9ff55d145c89 all runs: crashed: WARNING: bad unlock balance in __ext4_ioctl representative crash: WARNING: bad unlock balance in __ext4_ioctl, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0584f6a977ca5e57f39cb422477cffb368c35b34058ff074f19b90f2309be4c6 all runs: crashed: WARNING: bad unlock balance in __ext4_ioctl representative crash: WARNING: bad unlock balance in __ext4_ioctl, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 458ce51d0356ee60c93f9f807d9827cf2a41643d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ec857e96c9616f9cb4a0e70f7fa7ba74c2c64f6750cc927579f0a0aa1538fbc all runs: crashed: WARNING: bad unlock balance in __ext4_ioctl representative crash: WARNING: bad unlock balance in __ext4_ioctl, types: [LOCKDEP] the chunk can be dropped disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD d98fd109f8279feabed326ecd98923fa9b7affca testing commit d98fd109f8279feabed326ecd98923fa9b7affca gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 96389ed1d588d11939cd4df36b4d1beaa249639c565c3995bc166d7ab02096e1 all runs: crashed: WARNING: bad unlock balance in __ext4_ioctl representative crash: WARNING: bad unlock balance in __ext4_ioctl, types: [LOCKDEP] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h35m48.794312644s (build: 45m46.123292506s, test: 42m15.224528829s) crash still not fixed or there were kernel test errors commit msg: Linux 5.15.172 crash: WARNING: bad unlock balance in __ext4_ioctl EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem without journal. Opts: jqfmt=vfsold,resgid=0x000000000000ee00,bh,noload,data_err=ignore,usrjquota=,,errors=continue. Quota mode: none. ===================================== WARNING: bad unlock balance detected! 5.15.172-syzkaller #0 Not tainted ------------------------------------- syz-executor.0/1466 is trying to release lock (&type->i_mutex_dir_key) at: [] swap_inode_boot_loader fs/ext4/ioctl.c:262 [inline] [] __ext4_ioctl+0x984/0x12d0 fs/ext4/ioctl.c:1056 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor.0/1466: #0: ffff88810d164438 (sb_writers#13){.+.+}-{0:0}, at: __ext4_ioctl+0x569/0x12d0 fs/ext4/ioctl.c:1053 stack backtrace: CPU: 0 PID: 1466 Comm: syz-executor.0 Not tainted 5.15.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106 print_unlock_imbalance_bug kernel/locking/lockdep.c:5529 [inline] __lock_release kernel/locking/lockdep.c:5302 [inline] lock_release.cold+0xe/0x26 kernel/locking/lockdep.c:5643 up_write+0x12/0xc0 kernel/locking/rwsem.c:1603 swap_inode_boot_loader fs/ext4/ioctl.c:262 [inline] __ext4_ioctl+0x984/0x12d0 fs/ext4/ioctl.c:1056 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x7b/0xb0 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4060566da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f40600e80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4060694f80 RCX: 00007f4060566da9 RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004 RBP: 00007f40605b347a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f4060694f80 R15: 00007ffe8401c2c8