------------[ cut here ]------------ WARNING: CPU: 0 PID: 4442 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 0 PID: 4442 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline] WARNING: CPU: 0 PID: 4442 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 mm/page-writeback.c:2638 Modules linked in: CPU: 0 PID: 4442 Comm: syz-executor 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 : ffff8000204675e0 x29: ffff800020467600 x28: 1fffff8000672d40 x27: dfff800000000000 x26: 0000000000000000 x25: ffff0000c049c990 x24: 0000000000000001 x23: 0000000000000000 x22: fffffc0003396a08 x21: 1fffe00018093932 x20: ffff0000d8532250 x19: fffffc0003396a00 x18: ffff800011a5bd40 x17: ffff800018184000 x16: ffff8000082d2558 x15: ffff800017c65000 x14: ffff0000de562658 x13: ffff0000de5626d0 x12: 0000000000ff0100 x11: ff008000086fd29c x10: 0000000000000000 x9 : ffff8000086fd29c x8 : ffff0000de561bc0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff800008a4835c x2 : ffff0000cea2e060 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:1090 [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_kill_sb+0x5c/0xd4 fs/gfs2/ops_fstype.c:1729 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xe8/0x108 fs/super.c:363 cleanup_mnt+0x37c/0x404 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x270 kernel/task_work.c:203 get_signal+0x1120/0x1310 kernel/signal.c:2648 do_signal arch/arm64/kernel/signal.c:1081 [inline] do_notify_resume+0x34c/0x2b28 arch/arm64/kernel/signal.c:1134 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638 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: 162234 hardirqs last enabled at (162233): [] folio_memcg_lock+0xe8/0x1fc mm/memcontrol.c:2113 hardirqs last disabled at (162234): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (162234): [] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (161484): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (161482): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4442 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 1 PID: 4442 at include/linux/backing-dev.h:247 __folio_start_writeback+0x868/0xa68 mm/page-writeback.c:3003 Modules linked in: CPU: 1 PID: 4442 Comm: syz-executor Tainted: G W 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_start_writeback+0x868/0xa68 mm/page-writeback.c:3003 lr : inode_to_wb include/linux/backing-dev.h:243 [inline] lr : __folio_start_writeback+0x868/0xa68 mm/page-writeback.c:3003 sp : ffff800020467080 x29: ffff800020467160 x28: dfff800000000000 x27: 0000000000000000 x26: ffff70000408ce18 x25: 0000000000000000 x24: ffff0000d8532250 x23: ffff8000204670e0 x22: ffff0000c049c7e8 x21: 0000000000000001 x20: fffffc0003396a08 x19: fffffc0003396a00 x18: ffff800011a5bd40 x17: ffff800018184000 x16: ffff8000082d2558 x15: 0000000000000000 x14: 0000000000000406 x13: 1ffff00002a0a0b1 x12: 0000000000ff0100 x11: ff008000086ff7b4 x10: 0000000000000000 x9 : ffff8000086ff7b4 x8 : ffff0000de561bc0 x7 : ffff8000086ff234 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000086ff274 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:243 [inline] __folio_start_writeback+0x868/0xa68 mm/page-writeback.c:3003 set_page_writeback+0x5c/0x7c mm/folio-compat.c:56 gfs2_aspace_writepage+0x520/0x6e8 fs/gfs2/meta_io.c:73 __gfs2_writepage+0x70/0x18c fs/gfs2/log.c:87 write_cache_pages+0x73c/0xdd4 mm/page-writeback.c:2382 gfs2_ail1_start_one fs/gfs2/log.c:143 [inline] gfs2_ail1_flush+0x7c0/0xa00 fs/gfs2/log.c:223 gfs2_ail1_start fs/gfs2/log.c:254 [inline] empty_ail1_list+0x110/0x1ec fs/gfs2/log.c:986 gfs2_log_flush+0x1258/0x1aa0 fs/gfs2/log.c:1131 gfs2_kill_sb+0x5c/0xd4 fs/gfs2/ops_fstype.c:1729 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xe8/0x108 fs/super.c:363 cleanup_mnt+0x37c/0x404 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x270 kernel/task_work.c:203 get_signal+0x1120/0x1310 kernel/signal.c:2648 do_signal arch/arm64/kernel/signal.c:1081 [inline] do_notify_resume+0x34c/0x2b28 arch/arm64/kernel/signal.c:1134 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638 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: 163252 hardirqs last enabled at (163251): [] folio_memcg_lock+0xe8/0x1fc mm/memcontrol.c:2113 hardirqs last disabled at (163252): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (163252): [] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (163238): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (163238): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (162351): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---