ci starts bisection 2023-05-04 16:51:52.012502738 +0000 UTC m=+16496.895106271
bisecting fixing commit since 0ddc84d2dd43e2c2c3f634baa05ea10abd31197e
building syzkaller on 18b586030b9a7e7f4c7208f44be8994740608841
ensuring issue is reproducible on original commit 0ddc84d2dd43e2c2c3f634baa05ea10abd31197e

testing commit 0ddc84d2dd43e2c2c3f634baa05ea10abd31197e gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: d73477ddabeb4dbf741673039402075e2056fc6e6952c94cf66828795e31dac8
all runs: crashed: WARNING in walk_component
testing current HEAD 1a5304fecee523060f26e2778d9d8e33c0562df3
testing commit 1a5304fecee523060f26e2778d9d8e33c0562df3 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: df2cbbeb2fee0d300848f3a0fb1e6c33850758536a412247a88629d51c8f0c45
all runs: crashed: WARNING in walk_component
revisions tested: 2, total time: 25m9.087509023s (build: 17m57.613712105s, test: 6m13.650846817s)
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 in walk_component
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x1, magic = 0xffff8880717d5bb0, owner = 0xffff8880244e1dc0, curr 0xffff8880244e0000, list empty
WARNING: CPU: 1 PID: 6330 at kernel/locking/rwsem.c:1343 __up_read+0x5f4/0x750 kernel/locking/rwsem.c:1343
Modules linked in:
CPU: 1 PID: 6330 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:__up_read+0x5f4/0x750 kernel/locking/rwsem.c:1343
Code: 03 80 3c 02 00 0f 85 35 01 00 00 49 8b 17 4d 89 f1 4c 89 e9 48 c7 c6 20 96 6b 89 ff 34 24 48 c7 c7 40 94 6b 89 e8 fc 4b e9 ff <0f> 0b 5e e9 04 fb ff ff 48 c7 c7 6c 10 68 8d 48 89 04 24 e8 84 4c
RSP: 0018:ffffc9000a577b58 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff8d68106c RCX: 0000000000000000
RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffff8880717d5bb8 R08: 0000000000000000 R09: ffffc9000a577887
R10: fffff520014aef10 R11: 0000000000000001 R12: 1ffff920014aef6f
R13: ffff8880717d5bb0 R14: ffff8880244e0000 R15: ffff8880717d5bb0
FS:  00007f60ecf41700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020053000 CR3: 00000000273f3000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:790 [inline]
 lookup_slow fs/namei.c:1708 [inline]
 walk_component+0x2ae/0x4e0 fs/namei.c:1998
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x141/0x750 fs/namei.c:2479
 filename_lookup+0x1a3/0x510 fs/namei.c:2508
 user_path_at_empty+0x39/0x50 fs/namei.c:2907
 user_path_at include/linux/namei.h:57 [inline]
 __do_sys_chdir fs/open.c:551 [inline]
 __se_sys_chdir fs/open.c:545 [inline]
 __x64_sys_chdir+0xaa/0x1f0 fs/open.c:545
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f60ec28c0f9
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:00007f60ecf41168 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 00007f60ec3ac050 RCX: 00007f60ec28c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000380
RBP: 00007f60ec2e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc994657ef R14: 00007f60ecf41300 R15: 0000000000022000
 </TASK>