[syzbot] [gfs2?] WARNING in gfs2_evict_inode

syzbot <[email protected]>
Newsgroups dev.linux.lists.gfs2,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Hello,

syzbot found the following issue on:

HEAD commit:    6dfafbd0299a Merge tag 'drm-next-2025-12-03' of https://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=150d3cc2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7290a4d27e182f8b
dashboard link: https://syzkaller.appspot.com/bug?extid=6a7837644249dbdc1fa0
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

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

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-6dfafbd0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e7dec7519b1a/vmlinux-6dfafbd0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3ef2b7e3eee7/bzImage-6dfafbd0.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

------------[ cut here ]------------
WARNING: fs/gfs2/super.c:1247 at evict_should_delete fs/gfs2/super.c:1247 [inline], CPU#0: kswapd0/78
WARNING: fs/gfs2/super.c:1247 at gfs2_evict_inode+0xe8f/0x1000 fs/gfs2/super.c:1400, CPU#0: kswapd0/78
Modules linked in:
CPU: 0 UID: 0 PID: 78 Comm: kswapd0 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:evict_should_delete fs/gfs2/super.c:1247 [inline]
RIP: 0010:gfs2_evict_inode+0xe8f/0x1000 fs/gfs2/super.c:1400
Code: 7c 24 20 e8 a3 84 22 fe 48 8b 44 24 20 48 8b 30 4c 89 f7 e8 53 75 f8 ff eb 1d e8 0c 02 bb fd e9 7f fe ff ff e8 02 02 bb fd 90 <0f> 0b 90 e9 f7 f4 ff ff e8 f4 01 bb fd 45 31 f6 49 bd 00 00 00 00
RSP: 0018:ffffc9000103f000 EFLAGS: 00010293
RAX: ffffffff840657fe RBX: ffff888019f45620 RCX: ffff88801c254980
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000000000000000
RBP: ffffc9000103f130 R08: ffff888000d1c327 R09: 1ffff110001a3864
R10: dffffc0000000000 R11: ffffed10001a3865 R12: ffff888019f45668
R13: 1ffff110033e8acd R14: 1ffff110033e8b53 R15: 0000000000000800
FS:  0000000000000000(0000) GS:ffff88808d68a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc185f879a0 CR3: 000000005106d000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 evict+0x5f4/0xae0 fs/inode.c:837
 dispose_list fs/inode.c:879 [inline]
 prune_icache_sb+0x21b/0x2c0 fs/inode.c:1027
 super_cache_scan+0x39b/0x4b0 fs/super.c:224
 do_shrink_slab+0x6df/0x10d0 mm/shrinker.c:437
 shrink_slab_memcg mm/shrinker.c:550 [inline]
 shrink_slab+0x7ef/0x10d0 mm/shrinker.c:628
 shrink_one+0x28a/0x7c0 mm/vmscan.c:4955
 shrink_many mm/vmscan.c:5016 [inline]
 lru_gen_shrink_node mm/vmscan.c:5094 [inline]
 shrink_node+0x315d/0x3780 mm/vmscan.c:6081
 kswapd_shrink_node mm/vmscan.c:6941 [inline]
 balance_pgdat mm/vmscan.c:7124 [inline]
 kswapd+0x13f5/0x2780 mm/vmscan.c:7389
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>


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