INFO: task syz-executor.2:31852 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:25072 pid:31852 tgid:31851 ppid:5101 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 io_schedule+0x8c/0x100 kernel/sched/core.c:9023 folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1274 folio_wait_locked include/linux/pagemap.h:1106 [inline] gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:470 gfs2_find_jhead+0xd68/0xf10 fs/gfs2/lops.c:587 gfs2_make_fs_rw+0x206/0x5d0 fs/gfs2/super.c:140 gfs2_fill_super+0x247d/0x26b0 fs/gfs2/ops_fstype.c:1288 get_tree_bdev+0x3f3/0x560 fs/super.c:1619 gfs2_get_tree+0x54/0x210 fs/gfs2/ops_fstype.c:1341 vfs_get_tree+0x8c/0x2a0 fs/super.c:1784 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fd0d647e4aa RSP: 002b:00007fd0d7267ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fd0d7267f80 RCX: 00007fd0d647e4aa RDX: 0000000020000000 RSI: 000000002001f6c0 RDI: 00007fd0d7267f40 RBP: 0000000020000000 R08: 00007fd0d7267f80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000002001f6c0 R13: 00007fd0d7267f40 R14: 000000000001f6b2 R15: 0000000020000100 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 27253 Comm: kworker/u4:11 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x80/0x90 kernel/kcov.c:306 Code: 8d 42 28 4c 39 c8 77 22 89 f8 89 f6 49 ff c2 4c 89 11 48 c7 44 0a 08 05 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 4c 8b RSP: 0018:ffffc9000a837838 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81bac6c0 RDX: ffff88801e6cd940 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000a837950 R08: ffffffff81bac6cf R09: 1ffffffff1e03f53 R10: dffffc0000000000 R11: fffffbfff1e03f54 R12: 1ffff92001506f10 R13: 0000000000000005 R14: ffffffff81e06a06 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe7c7bf068 CR3: 000000000d732000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_event_text_poke+0xcf/0x330 kernel/events/core.c:9399 text_poke_bp_batch+0x5dd/0xb30 arch/x86/kernel/alternative.c:2350 text_poke_flush arch/x86/kernel/alternative.c:2488 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2495 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x132/0x260 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242