------------[ cut here ]------------ WARNING: CPU: 0 PID: 9 at include/linux/backing-dev.h:289 inode_to_wb include/linux/backing-dev.h:285 [inline] WARNING: CPU: 0 PID: 9 at include/linux/backing-dev.h:289 account_page_dirtied mm/page-writeback.c:2474 [inline] WARNING: CPU: 0 PID: 9 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 mm/page-writeback.c:2522 Modules linked in: CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: writeback wb_workfn (flush-7:0) pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:285 [inline] pc : account_page_dirtied mm/page-writeback.c:2474 [inline] pc : __set_page_dirty+0x938/0xc74 mm/page-writeback.c:2522 lr : inode_to_wb include/linux/backing-dev.h:285 [inline] lr : account_page_dirtied mm/page-writeback.c:2474 [inline] lr : __set_page_dirty+0x938/0xc74 mm/page-writeback.c:2522 sp : ffff80001b2c6fc0 x29: ffff80001b2c6fd0 x28: ffff0000c2074000 x27: 0000000000000000 x26: dfff800000000000 x25: 1fffe00018092b51 x24: 0000000000000000 x23: ffff0000c0495a88 x22: 0000000000000000 x21: 0000000000000001 x20: ffff0000da93a250 x19: fffffc0003651980 x18: 1fffe0003421d38e x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 x14: ffff0000c0950a00 x13: ffff0000c0950ac8 x12: 0000000000ff0100 x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869dba4 x8 : ffff0000c0950000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000899ce68 x2 : ffff0000cc0bc060 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:285 [inline] account_page_dirtied mm/page-writeback.c:2474 [inline] __set_page_dirty+0x938/0xc74 mm/page-writeback.c:2522 mark_buffer_dirty+0x27c/0x52c fs/buffer.c:1108 gfs2_unpin+0x12c/0xc28 fs/gfs2/lops.c:111 buf_lo_after_commit+0x140/0x188 fs/gfs2/lops.c:750 lops_after_commit fs/gfs2/lops.h:49 [inline] gfs2_log_flush+0x13cc/0x2078 fs/gfs2/log.c:1108 gfs2_write_inode+0x23c/0x3f4 fs/gfs2/super.c:439 write_inode fs/fs-writeback.c:1495 [inline] __writeback_single_inode+0x560/0x11f0 fs/fs-writeback.c:1705 writeback_sb_inodes+0x7fc/0x1378 fs/fs-writeback.c:1930 __writeback_inodes_wb+0x110/0x394 fs/fs-writeback.c:2001 wb_writeback+0x3ec/0xe44 fs/fs-writeback.c:2106 wb_check_old_data_flush fs/fs-writeback.c:2206 [inline] wb_do_writeback fs/fs-writeback.c:2259 [inline] wb_workfn+0xa18/0xdd8 fs/fs-writeback.c:2288 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 145336 hardirqs last enabled at (145335): [] lock_page_memcg+0x110/0x234 mm/memcontrol.c:2059 hardirqs last disabled at (145336): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (145336): [] _raw_spin_lock_irqsave+0xfc/0x14c kernel/locking/spinlock.c:162 softirqs last enabled at (144542): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (144542): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (144533): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (144533): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (144533): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (144533): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 1036521a164e2aad ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9 at include/linux/backing-dev.h:289 inode_to_wb include/linux/backing-dev.h:285 [inline] WARNING: CPU: 0 PID: 9 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 mm/page-writeback.c:2862 Modules linked in: CPU: 0 PID: 9 Comm: kworker/u4:0 Tainted: G W 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: writeback wb_workfn (flush-7:0) pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:285 [inline] pc : __test_set_page_writeback+0xa34/0xc34 mm/page-writeback.c:2862 lr : inode_to_wb include/linux/backing-dev.h:285 [inline] lr : __test_set_page_writeback+0xa34/0xc34 mm/page-writeback.c:2862 sp : ffff80001b2c6c00 x29: ffff80001b2c6ce0 x28: 0000000000000000 x27: 0000000000000000 x26: ffff0000c04958e0 x25: dfff800000000000 x24: 0000000000000000 x23: ffff0000da9382a0 x22: fffffc000332c0c8 x21: ffff80001b2c6c60 x20: 1fffff8000665819 x19: fffffc000332c0c0 x18: 0000000000000000 x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 x14: ffff0000c0950a00 x13: ffff0000c0950aa0 x12: 0000000000ff0100 x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a0718 x8 : ffff0000c0950000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086a0194 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:285 [inline] __test_set_page_writeback+0xa34/0xc34 mm/page-writeback.c:2862 set_page_writeback include/linux/page-flags.h:582 [inline] gfs2_aspace_writepage+0x548/0x710 fs/gfs2/meta_io.c:73 __writepage+0x70/0x120 mm/page-writeback.c:2342 write_cache_pages+0x7c8/0xde4 mm/page-writeback.c:2277 generic_writepages mm/page-writeback.c:2368 [inline] do_writepages+0x3cc/0x578 mm/page-writeback.c:2388 filemap_fdatawrite_wbc+0x1d4/0x234 mm/filemap.c:400 __filemap_fdatawrite_range mm/filemap.c:433 [inline] __filemap_fdatawrite mm/filemap.c:439 [inline] filemap_fdatawrite+0xb0/0xf4 mm/filemap.c:444 gfs2_write_inode+0x2ec/0x3f4 fs/gfs2/super.c:445 write_inode fs/fs-writeback.c:1495 [inline] __writeback_single_inode+0x560/0x11f0 fs/fs-writeback.c:1705 writeback_sb_inodes+0x7fc/0x1378 fs/fs-writeback.c:1930 __writeback_inodes_wb+0x110/0x394 fs/fs-writeback.c:2001 wb_writeback+0x3ec/0xe44 fs/fs-writeback.c:2106 wb_check_old_data_flush fs/fs-writeback.c:2206 [inline] wb_do_writeback fs/fs-writeback.c:2259 [inline] wb_workfn+0xa18/0xdd8 fs/fs-writeback.c:2288 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 145476 hardirqs last enabled at (145475): [] lock_page_memcg+0x110/0x234 mm/memcontrol.c:2059 hardirqs last disabled at (145476): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (145476): [] _raw_spin_lock_irqsave+0xfc/0x14c kernel/locking/spinlock.c:162 softirqs last enabled at (145446): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (145446): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (145339): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (145339): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (145339): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (145339): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 1036521a164e2aae ]---