gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4534 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 1 PID: 4534 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline] WARNING: CPU: 1 PID: 4534 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 mm/page-writeback.c:2638 Modules linked in: CPU: 1 PID: 4534 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:243 [inline] pc : folio_account_dirtied mm/page-writeback.c:2587 [inline] pc : __folio_mark_dirty+0x8a0/0xce0 mm/page-writeback.c:2638 lr : inode_to_wb include/linux/backing-dev.h:243 [inline] lr : folio_account_dirtied mm/page-writeback.c:2587 [inline] lr : __folio_mark_dirty+0x8a0/0xce0 mm/page-writeback.c:2638 sp : ffff8000217470e0 x29: ffff800021747100 x28: 1fffff800065efd0 x27: dfff800000000000 x26: 0000000000000000 x25: ffff0000c058be90 x24: 0000000000000001 x23: 0000000000000000 x22: fffffc00032f7e88 x21: 1fffe000180b17d2 x20: ffff0000d20b0d30 x19: fffffc00032f7e80 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082d10fc x15: ffff800017cda000 x14: ffff0000dc21ddd8 x13: ffff0000dc21dea0 x12: 0000000000ff0100 x11: ff008000086fbd44 x10: 0000000000000000 x9 : ffff8000086fbd44 x8 : ffff0000dc21d340 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000183b0578 x4 : 0000000000000008 x3 : ffff800008a46b60 x2 : ffff0000cf02a060 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:243 [inline] folio_account_dirtied mm/page-writeback.c:2587 [inline] __folio_mark_dirty+0x8a0/0xce0 mm/page-writeback.c:2638 __set_page_dirty include/linux/pagemap.h:1088 [inline] mark_buffer_dirty+0x2b8/0x5cc fs/buffer.c:1105 gfs2_unpin+0x120/0x914 fs/gfs2/lops.c:111 buf_lo_after_commit+0x140/0x188 fs/gfs2/lops.c:747 lops_after_commit fs/gfs2/lops.h:49 [inline] gfs2_log_flush+0xbc8/0x1aa0 fs/gfs2/log.c:1116 gfs2_trans_end+0x2e8/0x4b4 fs/gfs2/trans.c:158 alloc_dinode+0x2e8/0x3fc fs/gfs2/inode.c:410 gfs2_create_inode+0xa20/0x10d4 fs/gfs2/inode.c:712 gfs2_atomic_open+0xc8/0x1c4 fs/gfs2/inode.c:1293 atomic_open fs/namei.c:3353 [inline] lookup_open fs/namei.c:3461 [inline] open_last_lookups fs/namei.c:3558 [inline] path_openat+0xb40/0x2680 fs/namei.c:3788 do_filp_open+0x174/0x344 fs/namei.c:3818 do_sys_openat2+0x128/0x3d8 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 122748 hardirqs last enabled at (122747): [] folio_memcg_lock+0xe8/0x1fc mm/memcontrol.c:2113 hardirqs last disabled at (122748): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (122748): [] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (121776): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (121774): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---