kasan: CONFIG_KASAN_INLINE enabled kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 12722 Comm: syz-executor4 Not tainted 4.20.0+ #12 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:timerqueue_add+0xf2/0x320 lib/timerqueue.c:52 Code: 48 c1 ea 03 42 80 3c 2a 00 0f 85 bc 01 00 00 49 8b 17 48 85 d2 74 3d 48 89 d3 e8 c9 ee 92 f9 48 8d 7b 18 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 a3 01 00 00 4c 8b 7b 18 4c 89 f7 4c 89 fe e8 RSP: 0018:ffff8880ae707b68 EFLAGS: 00010007 RAX: 0000000000001022 RBX: 00000000000080fe RCX: ffffffff87ef09ec RDX: 0000000000010000 RSI: ffffffff87ef09c7 RDI: 0000000000008116 RBP: ffff8880ae707b98 R08: ffff8880a7dc4700 R09: ffffed1015ce5b90 R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: ffff888083075018 R13: dffffc0000000000 R14: 000000300e95abab R15: ffff88808d0165d0 FS: 00007fdc9dd8c700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020008378 CR3: 000000008988d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: enqueue_hrtimer+0x1ae/0x570 kernel/time/hrtimer.c:951 __run_hrtimer kernel/time/hrtimer.c:1404 [inline] __hrtimer_run_queues+0xc39/0x1050 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 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:update_stack_state+0x502/0x680 arch/x86/kernel/unwind_frame.c:261 Code: ff 48 b8 00 00 00 00 00 fc ff df 41 c6 04 04 f8 e9 6c fe ff ff 49 8d 7f 38 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 26 01 00 00 48 8b 85 50 ff ff ff 49 c7 47 50 00 RSP: 0018:ffff8880a1196810 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff8880a1197e30 RCX: 1ffff11014232d47 RDX: ffff8880a1190000 RSI: 1ffff11014232d00 RDI: ffff8880a1196a38 RBP: ffff8880a11968f8 R08: 0000000000000001 R09: ffff8880a1196a50 R10: ffff8880a1196a28 R11: ffff8880a1196a38 R12: ffff8880a11969f0 R13: dffffc0000000000 R14: ffff8880a1196a40 R15: ffff8880a1196a00 unwind_next_frame.part.0+0x1ae/0xa90 arch/x86/kernel/unwind_frame.c:329 unwind_next_frame+0x3b/0x50 arch/x86/kernel/unwind_frame.c:287 __save_stack_trace+0x7a/0xf0 arch/x86/kernel/stacktrace.c:44 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] kasan_kmalloc mm/kasan/common.c:482 [inline] kasan_kmalloc+0xcf/0xe0 mm/kasan/common.c:455 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:397 kmem_cache_alloc_node+0x144/0x710 mm/slab.c:3631 __alloc_skb+0xf4/0x730 net/core/skbuff.c:196 alloc_skb include/linux/skbuff.h:1011 [inline] alloc_skb_with_frags+0x13a/0x770 net/core/skbuff.c:5288 sock_alloc_send_pskb+0x8c9/0xad0 net/core/sock.c:2091 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2108 __ip6_append_data.isra.0+0x2556/0x3f20 net/ipv6/ip6_output.c:1443 ip6_make_skb+0x391/0x5f0 net/ipv6/ip6_output.c:1806 udpv6_sendmsg+0x2b58/0x3550 net/ipv6/udp.c:1460 inet_sendmsg+0x1af/0x740 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x409/0x910 net/socket.c:2116 __sys_sendmmsg+0x246/0x730 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ec9 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fdc9dd8bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9 RDX: 08000000000000fc RSI: 0000000020005fc0 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008000000 R11: 0000000000000246 R12: 00007fdc9dd8c6d4 R13: 00000000004c4ce5 R14: 00000000004d85d8 R15: 00000000ffffffff Modules linked in: ====================================================== WARNING: possible circular locking dependency detected 4.20.0+ #12 Not tainted ------------------------------------------------------ syz-executor4/12722 is trying to acquire lock: 00000000bccce462 ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 but task is already holding lock: 000000004834bd23 (hrtimer_bases.lock){-.-.}, at: __run_hrtimer kernel/time/hrtimer.c:1391 [inline] 000000004834bd23 (hrtimer_bases.lock){-.-.}, at: __hrtimer_run_queues+0x40f/0x1050 kernel/time/hrtimer.c:1451 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (hrtimer_bases.lock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 lock_hrtimer_base.isra.0+0x75/0x130 kernel/time/hrtimer.c:165 hrtimer_start_range_ns+0x120/0xda0 kernel/time/hrtimer.c:1104 hrtimer_start_expires include/linux/hrtimer.h:409 [inline] start_rt_bandwidth kernel/sched/rt.c:70 [inline] inc_rt_group kernel/sched/rt.c:1147 [inline] inc_rt_tasks kernel/sched/rt.c:1191 [inline] __enqueue_rt_entity kernel/sched/rt.c:1261 [inline] enqueue_rt_entity kernel/sched/rt.c:1305 [inline] enqueue_task_rt+0x95b/0x1010 kernel/sched/rt.c:1335 enqueue_task+0xb9/0x380 kernel/sched/core.c:730 __sched_setscheduler+0xe32/0x1fe0 kernel/sched/core.c:4336 _sched_setscheduler+0x218/0x340 kernel/sched/core.c:4373 sched_setscheduler+0xe/0x10 kernel/sched/core.c:4388 watchdog_dev_init+0x109/0x1db drivers/watchdog/watchdog_dev.c:1144 watchdog_init+0x81/0x294 drivers/watchdog/watchdog_core.c:355 do_one_initcall+0x129/0x937 init/main.c:888 do_initcall_level init/main.c:956 [inline] do_initcalls init/main.c:964 [inline] do_basic_setup init/main.c:982 [inline] kernel_init_freeable+0x4db/0x5ca init/main.c:1135 kernel_init+0x12/0x1c5 init/main.c:1055 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 -> #3 (&rt_b->rt_runtime_lock){-.-.}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 __enable_runtime kernel/sched/rt.c:786 [inline] rq_online_rt+0xb4/0x390 kernel/sched/rt.c:2178 set_rq_online.part.0+0xe7/0x140 kernel/sched/core.c:5666 set_rq_online kernel/sched/core.c:5772 [inline] sched_cpu_activate+0x29e/0x430 kernel/sched/core.c:5765 cpuhp_invoke_callback+0x2f6/0x2110 kernel/cpu.c:168 cpuhp_thread_fun+0x496/0x8a0 kernel/cpu.c:685 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 -> #2 (&rq->lock){-.-.}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 rq_lock kernel/sched/sched.h:1149 [inline] task_fork_fair+0xb5/0x7a0 kernel/sched/fair.c:10058 sched_fork+0x437/0xb90 kernel/sched/core.c:2359 copy_process+0x1ff6/0x8730 kernel/fork.c:1888 _do_fork+0x1a9/0x1170 kernel/fork.c:2217 kernel_thread+0x34/0x40 kernel/fork.c:2276 rest_init+0x28/0x37b init/main.c:408 arch_call_rest_init+0xe/0x1b start_kernel+0x882/0x8bd init/main.c:740 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #1 (&p->pi_lock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 wake_up_process+0x10/0x20 kernel/sched/core.c:2129 __up.isra.0+0x1c0/0x2a0 kernel/locking/semaphore.c:262 up+0x13e/0x1c0 kernel/locking/semaphore.c:187 __up_console_sem+0xb7/0x1c0 kernel/printk/printk.c:236 console_unlock+0x778/0x11e0 kernel/printk/printk.c:2426 vprintk_emit+0x370/0x960 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 kauditd_printk_skb kernel/audit.c:545 [inline] kauditd_hold_skb.cold+0x3f/0x4e kernel/audit.c:578 kauditd_send_queue+0x133/0x170 kernel/audit.c:741 kauditd_thread+0x808/0xb80 kernel/audit.c:867 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 -> #0 ((console_sem).lock){-.-.}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 __down_trylock_console_sem+0xa8/0x210 kernel/printk/printk.c:219 console_trylock+0x15/0xa0 kernel/printk/printk.c:2242 console_trylock_spinning kernel/printk/printk.c:1662 [inline] vprintk_emit+0x351/0x960 kernel/printk/printk.c:1930 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 kasan_die_handler arch/x86/mm/kasan_init_64.c:252 [inline] kasan_die_handler.cold+0x11/0x23 arch/x86/mm/kasan_init_64.c:247 notifier_call_chain+0x179/0x380 kernel/notifier.c:93 __atomic_notifier_call_chain kernel/notifier.c:183 [inline] atomic_notifier_call_chain+0x96/0x190 kernel/notifier.c:193 notify_die+0x1b2/0x270 kernel/notifier.c:549 do_general_protection+0x13d/0x300 arch/x86/kernel/traps.c:557 general_protection+0x1e/0x30 arch/x86/entry/entry_64.S:1142 timerqueue_add+0xf2/0x320 lib/timerqueue.c:52 enqueue_hrtimer+0x1ae/0x570 kernel/time/hrtimer.c:951 __run_hrtimer kernel/time/hrtimer.c:1404 [inline] __hrtimer_run_queues+0xc39/0x1050 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 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 update_stack_state+0x502/0x680 arch/x86/kernel/unwind_frame.c:261 unwind_next_frame.part.0+0x1ae/0xa90 arch/x86/kernel/unwind_frame.c:329 unwind_next_frame+0x3b/0x50 arch/x86/kernel/unwind_frame.c:287 __save_stack_trace+0x7a/0xf0 arch/x86/kernel/stacktrace.c:44 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] kasan_kmalloc mm/kasan/common.c:482 [inline] kasan_kmalloc+0xcf/0xe0 mm/kasan/common.c:455 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:397 kmem_cache_alloc_node+0x144/0x710 mm/slab.c:3631 __alloc_skb+0xf4/0x730 net/core/skbuff.c:196 alloc_skb include/linux/skbuff.h:1011 [inline] alloc_skb_with_frags+0x13a/0x770 net/core/skbuff.c:5288 sock_alloc_send_pskb+0x8c9/0xad0 net/core/sock.c:2091 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2108 __ip6_append_data.isra.0+0x2556/0x3f20 net/ipv6/ip6_output.c:1443 ip6_make_skb+0x391/0x5f0 net/ipv6/ip6_output.c:1806 udpv6_sendmsg+0x2b58/0x3550 net/ipv6/udp.c:1460 inet_sendmsg+0x1af/0x740 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x409/0x910 net/socket.c:2116 __sys_sendmmsg+0x246/0x730 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: (console_sem).lock --> &rt_b->rt_runtime_lock --> hrtimer_bases.lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(hrtimer_bases.lock); lock(&rt_b->rt_runtime_lock); lock(hrtimer_bases.lock); lock((console_sem).lock); *** DEADLOCK *** 2 locks held by syz-executor4/12722: #0: 000000004834bd23 (hrtimer_bases.lock){-.-.}, at: __run_hrtimer kernel/time/hrtimer.c:1391 [inline] #0: 000000004834bd23 (hrtimer_bases.lock){-.-.}, at: __hrtimer_run_queues+0x40f/0x1050 kernel/time/hrtimer.c:1451 #1: 00000000ef41a80c (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190 kernel/notifier.c:329 stack backtrace: CPU: 1 PID: 12722 Comm: syz-executor4 Not tainted 4.20.0+ #12 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 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2350 [inline] __lock_acquire+0x3014/0x4a30 kernel/locking/lockdep.c:3338 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 down_trylock+0x13/0x70 kernel/locking/semaphore.c:136 __down_trylock_console_sem+0xa8/0x210 kernel/printk/printk.c:219 console_trylock+0x15/0xa0 kernel/printk/printk.c:2242 console_trylock_spinning kernel/printk/printk.c:1662 [inline] vprintk_emit+0x351/0x960 kernel/printk/printk.c:1930 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 kasan_die_handler arch/x86/mm/kasan_init_64.c:252 [inline] kasan_die_handler.cold+0x11/0x23 arch/x86/mm/kasan_init_64.c:247 notifier_call_chain+0x179/0x380 kernel/notifier.c:93 __atomic_notifier_call_chain kernel/notifier.c:183 [inline] atomic_notifier_call_chain+0x96/0x190 kernel/notifier.c:193 notify_die+0x1b2/0x270 kernel/notifier.c:549 do_general_protection+0x13d/0x300 arch/x86/kernel/traps.c:557 general_protection+0x1e/0x30 arch/x86/entry/entry_64.S:1142 RIP: 0010:timerqueue_add+0xf2/0x320 lib/timerqueue.c:52 Code: 48 c1 ea 03 42 80 3c 2a 00 0f 85 bc 01 00 00 49 8b 17 48 85 d2 74 3d 48 89 d3 e8 c9 ee 92 f9 48 8d 7b 18 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 a3 01 00 00 4c 8b 7b 18 4c 89 f7 4c 89 fe e8 RSP: 0018:ffff8880ae707b68 EFLAGS: 00010007 RAX: 0000000000001022 RBX: 00000000000080fe RCX: ffffffff87ef09ec RDX: 0000000000010000 RSI: ffffffff87ef09c7 RDI: 0000000000008116 RBP: ffff8880ae707b98 R08: ffff8880a7dc4700 R09: ffffed1015ce5b90 R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: ffff888083075018 R13: dffffc0000000000 R14: 000000300e95abab R15: ffff88808d0165d0 enqueue_hrtimer+0x1ae/0x570 kernel/time/hrtimer.c:951 __run_hrtimer kernel/time/hrtimer.c:1404 [inline] __hrtimer_run_queues+0xc39/0x1050 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 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 ? trace_hardirqs Lost 141 message(s)! ---[ end trace a3aaebb0a9f09542 ]--- general protection fault: 0000 [#2] PREEMPT SMP KASAN CPU: 0 PID: -1487577976 Comm: ç Tainted: G D 4.20.0+ #12 RIP: 0010:timerqueue_add+0xf2/0x320 lib/timerqueue.c:52 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Code: 48 c1 ea 03 42 80 3c 2a 00 0f 85 bc 01 00 00 49 8b 17 48 85 d2 74 3d 48 89 d3 e8 c9 ee 92 f9 48 8d 7b 18 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 a3 01 00 00 4c 8b 7b 18 4c 89 f7 4c 89 fe e8 RIP: 0010:__read_once_size include/linux/compiler.h:191 [inline] RIP: 0010:get_running_cputimer include/linux/sched/cputime.h:85 [inline] RIP: 0010:account_group_system_time include/linux/sched/cputime.h:149 [inline] RIP: 0010:account_system_index_time+0xe8/0x5f0 kernel/sched/cputime.c:168 RSP: 0018:ffff8880ae707b68 EFLAGS: 00010007 Code: 04 00 00 49 8b 84 24 00 07 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d b8 40 01 00 00 48 8d 88 28 01 00 00 48 89 fe 48 c1 ee 03 <0f> b6 14 16 48 89 fe 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 93 03 00 RAX: 0000000000001022 RBX: 00000000000080fe RCX: ffffffff87ef09ec RSP: 0018:ffff8880ae607a80 EFLAGS: 00010006 RDX: 0000000000010000 RSI: ffffffff87ef09c7 RDI: 0000000000008116 RAX: 0000000000000000 RBX: 1ffff11015cc0f54 RCX: 0000000000000128 RBP: ffff8880ae707b98 R08: ffff8880a7dc4700 R09: ffffed1015ce5b90 RDX: dffffc0000000000 RSI: 0000000000000028 RDI: 0000000000000140 R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: ffff888083075018 RBP: ffff8880ae607b48 R08: ffff8880ae61f5f0 R09: fffffbfff1336415 R13: dffffc0000000000 R14: 000000300e95abab R15: ffff88808d0165d0 R10: fffffbfff1301b45 R11: ffffffff899b20a3 R12: ffff8880a947a240 FS: 00007fdc9dd8c700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 R13: 0000000000981849 R14: 0000000000000003 R15: ffff8880ae607b20 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CR2: 0000000020008378 CR3: 000000008988d000 CR4: 00000000001406e0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CR2: 0000000000000068 CR3: 0000000095f28000 CR4: 00000000001406f0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000