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AJvYcCWJ/IpdhLxdls7PaCYG5rUwj9DCffdWgfNlej+gd3dJfzdL+Zr4YpYM5w2qtp59srNyMpPso+abCSqJmZM=@vger.kernel.org X-Gm-Message-State: AOJu0YyoGH24Yuo5u8RdcUeIFAt5OUANoMjEiq0CB6QAadfIR7e14ZTr 0PWebPbuypQ85g4tr3uEPg1z7RlO5iLXbWChfBlYnS0DwO6uDbiBdAyVQK9CUBC09enzY+QfU8s lErCsae77kPjbkRC0F9OhgyYJftBTCse4EF8IbaAAXsjOnNRi+3zoaSWtDlc= X-Google-Smtp-Source: AGHT+IFlRuy6FBy1GePIwH2KGHGqtGxzaPLBXJF7hMbJ9a2yjYFq3NgtvyqIoYkB45KCzON44RgutKbW878fJM4L45cDHHgl5avw Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:15cf:b0:948:7c51:1977 with SMTP id ca18e2360f4ac-94895f83afemr677750139f.4.1762665421997; Sat, 08 Nov 2025 21:17:01 -0800 (PST) Date: Sat, 08 Nov 2025 21:17:01 -0800 In-Reply-To: <20251109050218.648149-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <691023cd.a70a0220.22f260.009d.GAE@google.com> Subject: Re: [syzbot] [gfs2?] WARNING in chown_common From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in chown_common ------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88804066a898, owner = 0x0, curr 0xffff88803347c900, list empty WARNING: CPU: 0 PID: 5867 at kernel/locking/rwsem.c:1381 __up_write kernel/locking/rwsem.c:1380 [inline] WARNING: CPU: 0 PID: 5867 at kernel/locking/rwsem.c:1381 up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Modules linked in: CPU: 0 UID: 0 PID: 5867 Comm: syz.0.21 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__up_write kernel/locking/rwsem.c:1380 [inline] RIP: 0010:up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Code: d0 48 c7 c7 20 ff 6a 8b 48 c7 c6 40 01 6b 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 c3 35 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 94 33 7d 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000ceafc30 EFLAGS: 00010296 RAX: a13d96110bebcb00 RBX: ffff88804066a898 RCX: ffff88803347c900 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba684 R12: 0000000000000000 R13: ffff88804066a8f0 R14: ffff88804066a898 R15: 1ffff110080cd514 FS: 00007f07520966c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000004e9f3000 CR4: 0000000000352ef0 Call Trace: inode_unlock include/linux/fs.h:990 [inline] chown_common+0x3f1/0x5b0 fs/open.c:801 do_fchownat+0x161/0x270 fs/open.c:833 __do_sys_fchownat fs/open.c:848 [inline] __se_sys_fchownat fs/open.c:845 [inline] __x64_sys_fchownat+0xb5/0xd0 fs/open.c:845 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f075118efc9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0752096038 EFLAGS: 00000246 ORIG_RAX: 0000000000000104 RAX: ffffffffffffffda RBX: 00007f07513e6090 RCX: 00007f075118efc9 RDX: 0000000000000000 RSI: 0000200000000000 RDI: ffffffffffffff9c RBP: 00007f0751211f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f07513e6128 R14: 00007f07513e6090 R15: 00007ffd9054c3d8 Tested on: commit: 439fc29d Merge tag 'drm-fixes-2025-11-09' of https://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=133c6a92580000 kernel config: https://syzkaller.appspot.com/x/.config?x=929790bc044e87d7 dashboard link: https://syzkaller.appspot.com/bug?extid=04c2672c56fbb9401640 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=140c8412580000