INFO: task syz-executor.0:13109 blocked for more than 143 seconds. Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24512 pid:13109 ppid:5039 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804 rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086 __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x9c/0x2f0 kernel/locking/rwsem.c:1522 filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] filemap_fault+0x647/0x1810 mm/filemap.c:3271 __do_fault+0x136/0x500 mm/memory.c:4176 do_read_fault mm/memory.c:4530 [inline] do_fault mm/memory.c:4659 [inline] do_pte_missing mm/memory.c:3647 [inline] handle_pte_fault mm/memory.c:4947 [inline] __handle_mm_fault mm/memory.c:5089 [inline] handle_mm_fault+0x41a8/0x5860 mm/memory.c:5243 faultin_page mm/gup.c:925 [inline] __get_user_pages+0x5d9/0x12b0 mm/gup.c:1147 populate_vma_page_range+0x2c7/0x3b0 mm/gup.c:1543 __mm_populate+0x279/0x450 mm/gup.c:1652 mm_populate include/linux/mm.h:3153 [inline] vm_mmap_pgoff+0x300/0x410 mm/util.c:548 ksys_mmap_pgoff+0x4f9/0x6d0 mm/mmap.c:1440 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd2d428c169 RSP: 002b:00007fd2d4f70168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fd2d43abf80 RCX: 00007fd2d428c169 RDX: 0000000001000002 RSI: 0000000000b34100 RDI: 0000000020000000 RBP: 00007fd2d42e7ca1 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff6264b41f R14: 00007fd2d4f70300 R15: 0000000000022000 INFO: task syz-executor.3:13120 blocked for more than 143 seconds. Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27520 pid:13120 ppid:5026 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804 rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 filemap_invalidate_lock include/linux/fs.h:820 [inline] blk_ioctl_zeroout block/ioctl.c:182 [inline] blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486 blkdev_ioctl+0x551/0x7a0 block/ioctl.c:609 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f105468c169 RSP: 002b:00007f10553be168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f10547ac050 RCX: 00007f105468c169 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000007 RBP: 00007f10546e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd62c0622f R14: 00007f10553be300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4748: #0: ffff8880288d7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176 2 locks held by syz-executor.0/13109: #0: ffff8880228a5268 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:142 [inline] #0: ffff8880228a5268 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x1af/0x450 mm/gup.c:1631 #1: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #1: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_fault+0x647/0x1810 mm/filemap.c:3271 1 lock held by syz-executor.3/13120: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486 2 locks held by syz-executor.5/13117: 1 lock held by syz-executor.0/13191: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.3/13208: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.3/13209: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486 1 lock held by syz-executor.5/13212: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.0/13239: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.5/13293: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.3/13296: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226 1 lock held by syz-executor.3/13297: #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 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+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112