ci starts bisection 2023-05-04 17:49:05.239732841 +0000 UTC m=+19930.122336371
bisecting fixing commit since a689b938df39ab513026c53fb7011fd7cd594943
building syzkaller on 1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d
ensuring issue is reproducible on original commit a689b938df39ab513026c53fb7011fd7cd594943

testing commit a689b938df39ab513026c53fb7011fd7cd594943 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 40fae15ab279e7c60387b89575abfd89f519cbbc5d9dd257261e072e2f75ca38
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: task hung in find_inode_fast
run #11: crashed: INFO: task hung in find_inode_fast
run #12: crashed: INFO: task hung in find_inode_fast
run #13: crashed: INFO: task hung in find_inode_fast
run #14: crashed: INFO: task hung in find_inode_fast
run #15: crashed: INFO: task hung in ext4_evict_ea_inode
run #16: crashed: INFO: task hung in ext4_evict_ea_inode
run #17: crashed: INFO: task hung in find_inode_fast
run #18: OK
run #19: OK
testing current HEAD 1a5304fecee523060f26e2778d9d8e33c0562df3
testing commit 1a5304fecee523060f26e2778d9d8e33c0562df3 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: ec79dc85793673798a816fcc7c1a9394fd89ff6190bb9db9367e5ebf7c3dd304
run #0: crashed: INFO: task hung in find_inode_fast
run #1: crashed: INFO: task hung in find_inode_fast
run #2: OK
run #3: OK
run #4: crashed: WARNING: locking bug in ext4_xattr_inode_update_ref
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
reproducer seems to be flaky
Reproducer flagged being flaky
revisions tested: 2, total time: 36m38.808717132s (build: 17m58.781990926s, test: 17m49.375884815s)
the crash still happens on HEAD
commit msg: Merge tag 'parisc-for-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
crash: WARNING: locking bug in ext4_xattr_inode_update_ref
------------[ cut here ]------------
Looking for class "&ea_inode->i_rwsem" with key ext4_fs_type, but found a different class "&sb->s_type->i_mutex_key" with the same key
WARNING: CPU: 0 PID: 21750 at kernel/locking/lockdep.c:941 look_up_lock_class+0xc2/0x140
Modules linked in:
CPU: 0 PID: 21750 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:look_up_lock_class+0xc2/0x140
Code: 8b 16 48 c7 c0 c0 00 f1 8e 48 39 c2 74 46 f6 05 bb d1 85 03 01 75 3d c6 05 b2 d1 85 03 01 48 c7 c7 00 92 ea 89 e8 2e 22 a6 f7 <0f> 0b eb 26 e8 05 47 24 fa 48 c7 c7 40 91 ea 89 89 de e8 f7 fd fd
RSP: 0018:ffffc90003cbedb0 EFLAGS: 00010046
RAX: e1e06b7ff29f4e00 RBX: ffffffff8ed7fb40 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc90003cbeea8 R08: dffffc0000000000 R09: fffffbfff17e1a71
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff92000797dc4 R14: ffff88806b183600 R15: ffffffff8c0ba8f8
FS:  00007f6ec836b700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8145c8000 CR3: 000000001d359000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0x104/0x990
 __lock_acquire+0xd3/0x2000
 lock_acquire+0x1e3/0x520
 down_write+0x3a/0x50
 ext4_xattr_inode_update_ref+0x9c/0x4a0
 ext4_xattr_set_entry+0x3084/0x39b0
 ext4_xattr_block_set+0xbeb/0x3380
 ext4_xattr_set_handle+0xb07/0x12d0
 ext4_xattr_set+0x218/0x370
 __vfs_setxattr+0x334/0x380
 __vfs_setxattr_noperm+0x106/0x4c0
 vfs_setxattr+0x1d3/0x350
 setxattr+0x182/0x1f0
 path_setxattr+0x17d/0x230
 __x64_sys_setxattr+0xb6/0xd0
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ec768c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6ec836b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f6ec77ac050 RCX: 00007f6ec768c0c9
RDX: 00000000200005c0 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 00007f6ec76e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd039145bf R14: 00007f6ec836b300 R15: 0000000000022000
 </TASK>