[syzbot] [bcachefs?] WARNING in rcu_segcblist_advance

[syzbot <syzbot+075b092b57be8d0576dc@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    fd0584d220fe Merge tag 'trace-tools-v6.13-rc4' of git://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17618af8580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4c4096b0d467a682
dashboard link: https://syzkaller.appspot.com/bug?extid=075b092b57be8d0576dc
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/99f5cc30ce2c/disk-fd0584d2.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ff08027daffe/vmlinux-fd0584d2.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e103bb4babf1/bzImage-fd0584d2.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+075b092b57be8d0576dc@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 5821 at kernel/rcu/rcu_segcblist.c:473 rcu_segcblist_advance+0x3c6/0x3f0 kernel/rcu/rcu_segcblist.c:473
Modules linked in:
CPU: 0 UID: 0 PID: 5821 Comm: syz-executor Not tainted 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rcu_segcblist_advance+0x3c6/0x3f0 kernel/rcu/rcu_segcblist.c:473
Code: 3c 38 00 48 8b 6c 24 28 74 08 48 89 ef e8 52 0c 7c 00 48 89 5d 00 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 e9 76 fc ff ff 89 e9 80 e1 07 38 c1 0f 8c 5f fc ff ff 48
RSP: 0018:ffffc90003faf918 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffe8ffffc69880 RCX: ffff888027e0c6d8
RDX: dffffc0000000000 RSI: fffffffffffffe70 RDI: ffffe8ffffc69880
RBP: ffffe8ffffc698f0 R08: ffffffff9427088f R09: 1ffffffff284e111
R10: dffffc0000000000 R11: fffffbfff284e112 R12: fffffffffffffe70
R13: ffff888053c043c0 R14: ffffe8ffffc69880 R15: dffffc0000000000
FS:  00005555747f2500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc0af769160 CR3: 000000005f0e2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 srcu_gp_start_if_needed+0x699/0x11e0 kernel/rcu/srcutree.c:1311
 __call_srcu kernel/rcu/srcutree.c:1384 [inline]
 __synchronize_srcu+0x34f/0x400 kernel/rcu/srcutree.c:1432
 bch2_fs_btree_iter_exit+0x3e8/0x480 fs/bcachefs/btree_iter.c:3445
 __bch2_fs_free fs/bcachefs/super.c:558 [inline]
 bch2_fs_release+0x216/0x7d0 fs/bcachefs/super.c:611
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f806fd87057
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc1a734be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f806fd87057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1a734ca0
RBP: 00007ffc1a734ca0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc1a735d20
R13: 00007f806fe018f4 R14: 00007ffc1a735d60 R15: 000000000000000d
 </TASK>


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