RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000018 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f625a25b6d4 R13: 00000000004c6508 R14: 00000000004db5f0 R15: 0000000000000003 socket: no more sockets INFO: task syz-executor4:2009 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #41 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D25576 2009 8121 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x9b/0x120 kernel/locking/rwsem.c:26 do_user_addr_fault arch/x86/mm/fault.c:1426 [inline] __do_page_fault+0x9c2/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0xe6/0x7d8 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x400610 Code: Bad RIP value. RSP: 002b:00007fffc9bc8d40 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 000000000073c040 RCX: 00000000200000c0 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000008 RBP: fffffffffffffffe R08: 0000000000000000 R09: 0000000000000000 R10: 00007fffc9bc8e30 R11: 0000000000000246 R12: 000000000073c04c R13: 000000000073c04c R14: 0000000000000003 R15: 0000000000000002 INFO: task syz-executor4:2028 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #41 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D25976 2028 8121 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:577 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 do_mmu_notifier_register+0x548/0x740 mm/mmu_notifier.c:256 mmu_notifier_register+0x23/0x30 mm/mmu_notifier.c:307 kvm_init_mmu_notifier arch/x86/kvm/../../../virt/kvm/kvm_main.c:511 [inline] kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:679 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3325 [inline] kvm_dev_ioctl+0x11b1/0x1a60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3377 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: Bad RIP value. RSP: 002b:00007f5e10582c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e105836d4 R13: 00000000004c0bef R14: 00000000004d27d0 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1039: #0: 00000000b121f0d3 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 1 lock held by rsyslogd/7977: #0: 0000000003e37f78 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/8068: #0: 00000000ef5b5d76 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000002d0c9190 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8069: #0: 000000008ff8fe80 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000fd873c2d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8070: #0: 00000000ceaabb87 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000b2f2805d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8071: #0: 00000000822a19ec (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000850eec43 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8072: #0: 0000000093a1a234 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000c880cbf1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8073: #0: 000000008e5c00dd (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000000b126ca (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8074: #0: 0000000090e00e65 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000658fdb57 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor4/2009: #0: 0000000091e9ad52 (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1426 [inline] #0: 0000000091e9ad52 (&mm->mmap_sem){++++}, at: __do_page_fault+0x9c2/0xd60 arch/x86/mm/fault.c:1541 3 locks held by syz-executor4/2012: 1 lock held by syz-executor4/2022: #0: 0000000091e9ad52 (&mm->mmap_sem){++++}, at: exit_mm kernel/exit.c:511 [inline] #0: 0000000091e9ad52 (&mm->mmap_sem){++++}, at: do_exit+0x4ea/0x26e0 kernel/exit.c:854 1 lock held by syz-executor4/2028: #0: 0000000091e9ad52 (&mm->mmap_sem){++++}, at: do_mmu_notifier_register+0x548/0x740 mm/mmu_notifier.c:256 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc3+ #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0xbbb/0x1170 kernel/hung_task.c:287 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.601 msecs NMI backtrace for cpu 0 CPU: 0 PID: 2012 Comm: syz-executor4 Not tainted 5.0.0-rc3+ #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:23 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:200 [inline] RIP: 0010:native_write_msr+0x6/0x30 arch/x86/include/asm/msr.h:164 Code: d5 47 88 e9 dc 2f e9 06 0f 21 f8 c3 0f 21 c0 c3 0f 21 c8 c3 0f 21 d0 c3 0f 21 d8 c3 0f 21 f0 c3 0f 0b 66 90 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 55 48 c1 e2 20 89 f6 48 89 e5 48 09 d6 31 d2 e8 RSP: 0000:ffff8880ae607da0 EFLAGS: 00000046 RAX: 00000000000000fd RBX: 0000000000000838 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 00000000000000fd RDI: 0000000000000838 RBP: ffff8880ae607db8 R08: ffff88809ff00500 R09: ffffffff8a9ad01d R10: ffffffff8a9ad010 R11: 0000000000000001 R12: ffff8880ae61f140 R13: 00000000000000fd R14: 0000000000000000 R15: 0000000000000000 FS: 00007f5e105c5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f96b26c91fd CR3: 00000000a8043000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:397 [inline] lapic_next_event+0x57/0x90 arch/x86/kernel/apic/apic.c:467 clockevents_program_event+0x266/0x380 kernel/time/clockevents.c:334 tick_program_event+0xb4/0x130 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x369/0x770 kernel/time/hrtimer.c:1522 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x18d/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore+0x35/0x60 arch/x86/include/asm/paravirt.h:766 Code: 48 b9 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 e5 48 83 ec 08 80 3c 0a 00 75 18 48 83 3d 72 a8 c6 07 00 74 0c 48 89 c7 57 9d <0f> 1f 44 00 00 c9 c3 0f 0b 48 89 7d f8 48 c7 c7 70 81 92 89 e8 a2 RSP: 0000:ffff88802e365768 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000286 RBX: ffff888057b6eec0 RCX: dffffc0000000000 RDX: 1ffffffff132502e RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff88802e365770 R08: 0000000000000007 R09: ffff88809ff00df0 R10: ffff88809ff00500 R11: 0000000000000000 R12: ffff88802e365810 R13: ffff88802e365940 R14: 0000000000000286 R15: ffff8880ae6292e0 consume_stock mm/memcontrol.c:1983 [inline] try_charge+0xb57/0x19b0 mm/memcontrol.c:2186 mem_cgroup_try_charge+0x43a/0xdb0 mm/memcontrol.c:5913 __add_to_page_cache_locked+0x6f7/0x1760 mm/filemap.c:812 add_to_page_cache_lru+0x314/0xd20 mm/filemap.c:886 mpage_readpages+0x4cb/0x920 fs/mpage.c:399 blkdev_readpages+0x2d/0x40 fs/block_dev.c:615 read_pages+0x119/0x650 mm/readahead.c:123 __do_page_cache_readahead+0x5ce/0x800 mm/readahead.c:209 ra_submit mm/internal.h:66 [inline] do_sync_mmap_readahead mm/filemap.c:2432 [inline] filemap_fault+0xd9e/0x2640 mm/filemap.c:2508 __do_fault+0x176/0x7b0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x370a/0x55a0 mm/memory.c:3911 handle_mm_fault+0x4ec/0xc80 mm/memory.c:3948 faultin_page mm/gup.c:535 [inline] __get_user_pages+0x8f7/0x1e10 mm/gup.c:738 __get_user_pages_locked mm/gup.c:914 [inline] get_user_pages_unlocked+0x2fd/0x5d0 mm/gup.c:1037 hva_to_pfn_slow arch/x86/kvm/../../../virt/kvm/kvm_main.c:1488 [inline] hva_to_pfn arch/x86/kvm/../../../virt/kvm/kvm_main.c:1596 [inline] __gfn_to_pfn_memslot+0x476/0x15b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1652 try_async_pf+0x1cc/0xea0 arch/x86/kvm/mmu.c:4016 tdp_page_fault+0x428/0xb70 arch/x86/kvm/mmu.c:4113 kvm_mmu_page_fault+0x201/0x1c60 arch/x86/kvm/mmu.c:5341 handle_ept_violation+0x241/0x6a0 arch/x86/kvm/vmx/vmx.c:5104 vmx_handle_exit+0x2f0/0x1840 arch/x86/kvm/vmx/vmx.c:5849 vcpu_enter_guest+0x1339/0x6520 arch/x86/kvm/x86.c:7908 ? trace_hardirqs Lost 42 message(s)!