INFO: task jbd2/sda1-8:2363 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:26416 pid:2363 tgid:2363 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 io_schedule+0xbf/0x130 kernel/sched/core.c:9043 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x64/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:415 [inline] journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline] jbd2_journal_commit_transaction+0x4827/0x65d0 fs/jbd2/commit.c:887 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 4 locks held by kworker/0:0/8: #0: ffff888104af4d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc9000008fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff888109b33190 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849 #3: ffff888109b36510 (&port_dev->status_lock ){+.+.}-{3:3} , at: usb_lock_port drivers/usb/core/hub.c:3206 [inline] , at: hub_event+0x5c4/0x4f50 drivers/usb/core/hub.c:5902 1 lock held by khungtaskd/30: #0: ffffffff886b4620 ( rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] , at: rcu_read_lock include/linux/rcupdate.h:781 [inline] , at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 3 locks held by kworker/1:1/42: 12 locks held by kworker/1:2/729: 2 locks held by getty/2458: #0: ffff8881073570a0 (&tty->ldisc_sem ){++++}-{0:0} , at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900000432f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3} , at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.1/2522: #0: ffffffff886bfdb8 ( rcu_state.exp_mutex){+.+.}-{3:3} , at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323 1 lock held by syz-executor.4/2524: 2 locks held by kworker/0:4/4797: 3 locks held by kworker/1:3/4810: 6 locks held by kworker/1:5/4832: 1 lock held by syz-executor.4/4834: 1 lock held by syz-executor.0/4837: #0: ffffffff886bfdb8 (rcu_state.exp_mutex ){+.+.}-{3:3} , at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:291 1 lock held by udevd/4839: #0: ffff888100aae948 (&root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xf86/0x1240 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4841 Comm: syz-executor.4 Not tainted 6.10.0-rc2-syzkaller-00024-g5821bf2dffbe #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:__rmqueue_pcplist+0x1d9/0xfe0 mm/page_alloc.c:2926 Code: 3c 03 0f 8e d3 0b 00 00 8b 44 24 10 41 29 47 40 eb 48 4c 8b 6c 24 40 48 b8 00 00 00 00 00 fc ff df 49 c7 44 05 00 00 00 00 00 <48> 8b 84 24 e0 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 38 0c 00 RSP: 0018:ffffc90003f1f3a8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: dead000000000040 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea0004b5fb48 RBP: 0000000000000001 R08: 0000000000000000 R09: fffff9400096bf6e R10: ffffea0004b5fb77 R11: 0000000000000001 R12: ffffea0004b5fb40 R13: 1ffff920007e3e86 R14: ffffea0004b5fb40 R15: ffffea0004b5fb80 FS: 0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdb57a4eb0 CR3: 00000001165ce000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rmqueue_pcplist mm/page_alloc.c:2953 [inline] rmqueue mm/page_alloc.c:2990 [inline] get_page_from_freelist+0x55f/0x25e0 mm/page_alloc.c:3399 __alloc_pages_noprof+0x21e/0x2290 mm/page_alloc.c:4660 alloc_pages_mpol_noprof+0xeb/0x400 mm/mempolicy.c:2265 vma_alloc_folio_noprof+0xad/0x1b0 mm/mempolicy.c:2304 folio_prealloc mm/memory.c:1048 [inline] alloc_anon_folio mm/memory.c:4403 [inline] do_anonymous_page mm/memory.c:4461 [inline] do_pte_missing mm/memory.c:3901 [inline] handle_pte_fault mm/memory.c:5380 [inline] __handle_mm_fault+0x1356/0x24e0 mm/memory.c:5523 handle_mm_fault+0x368/0x890 mm/memory.c:5688 do_user_addr_fault+0x2e5/0xe50 arch/x86/mm/fault.c:1389 handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:__put_user_8+0x11/0x20 arch/x86/lib/putuser.S:107 Code: 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <48> 89 01 31 c9 0f 01 ca c3 cc cc cc cc 66 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003f1fc00 EFLAGS: 00050202 RAX: 0000000000000002 RBX: 0000000000000000 RCX: 00007ffdb57a4eb0 RDX: ffff8881197a3a00 RSI: ffffffff81c5ac6a RDI: ffffffff86e78600 RBP: ffff8881165a0940 R08: 0000000000000000 R09: fffffbfff137bcf2 R10: ffffffff89bde797 R11: 0000000000000000 R12: 00007ffdb57a4eb0 R13: 00007ffdb57a4eb8 R14: 0000000000000002 R15: ffff888118bf7d20 create_elf_tables fs/binfmt_elf.c:312 [inline] load_elf_binary+0x2d05/0x4db0 fs/binfmt_elf.c:1242 search_binary_handler fs/exec.c:1797 [inline] exec_binprm fs/exec.c:1839 [inline] bprm_execve fs/exec.c:1891 [inline] bprm_execve+0x703/0x19a0 fs/exec.c:1867 do_execveat_common.isra.0+0x5cb/0x750 fs/exec.c:1998 do_execve fs/exec.c:2072 [inline] __do_sys_execve fs/exec.c:2148 [inline] __se_sys_execve fs/exec.c:2143 [inline] __x64_sys_execve+0x8c/0xb0 fs/exec.c:2143 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x40720e Code: Unable to access opcode bytes at 0x4071e4. RSP: 002b:000000c0011e1178 EFLAGS: 00000202 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 000000c0000ea030 RCX: 000000000040720e RDX: 000000c000164480 RSI: 000000c000252210 RDI: 000000c0000ea030 RBP: 000000c0011e11b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000004b95a5 R13: 000000c000154000 R14: 000000c0000a0340 R15: 000000000000000a