INFO: task syz-executor2:26384 blocked for more than 140 seconds. Not tainted 4.4.165+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D ffff8801d9c8f8e0 29712 26384 2134 0x00000000 ffff8801d9c8f8e0 ffff8800a5cf2080 ffff8800a5cf20d0 0000000000000001 ffff880000000000 ffff8801db71f180 ffff8801db71f1a8 ffff8801db71e898 ffff8801db71e880 ffff8801da6897c0 ffff8800a5cf17c0 0000000000000000 Call Trace: [] schedule+0x7a/0x1b0 kernel/sched/core.c:3355 [] schedule_timeout+0x481/0x7b0 kernel/time/timer.c:1515 [] down_read_failed+0x294/0x580 drivers/tty/tty_ldsem.c:241 [] __ldsem_down_read_nested drivers/tty/tty_ldsem.c:332 [inline] [] ldsem_down_read+0x94/0xc0 drivers/tty/tty_ldsem.c:367 [] tty_ldisc_ref_wait+0x2b/0xb0 drivers/tty/tty_ldisc.c:263 [] tty_ioctl+0x3a7/0x2090 drivers/tty/tty_io.c:2988 [] vfs_ioctl fs/ioctl.c:43 [inline] [] file_ioctl fs/ioctl.c:470 [inline] [] do_vfs_ioctl+0x63f/0xf40 fs/ioctl.c:605 Mem-Info: active_anon:270627 inactive_anon:396 isolated_anon:0 active_file:7883 inactive_file:20868 isolated_file:0 unevictable:0 dirty:280 writeback:0 unstable:0 slab_reclaimable:5455 slab_unreclaimable:63079 mapped:55294 shmem:411 pagetables:9036 bounce:0 free:1205813 free_pcp:482 free_cma:0 DMA32 free:2208488kB min:4696kB low:5868kB high:7044kB active_anon:492076kB inactive_anon:812kB active_file:13720kB inactive_file:37184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3145324kB managed:3021792kB mlocked:0kB dirty:464kB writeback:0kB mapped:99592kB shmem:832kB slab_reclaimable:10212kB slab_unreclaimable:113340kB kernel_stack:8032kB pagetables:16992kB unstable:0kB bounce:0kB free_pcp:1160kB local_pcp:640kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 3504 3504 Normal free:2614764kB min:5580kB low:6972kB high:8368kB active_anon:590432kB inactive_anon:772kB active_file:17812kB inactive_file:46288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3588764kB mlocked:0kB dirty:656kB writeback:0kB mapped:121584kB shmem:812kB slab_reclaimable:11608kB slab_unreclaimable:138976kB kernel_stack:11040kB pagetables:19152kB unstable:0kB bounce:0kB free_pcp:768kB local_pcp:492kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA32: 182*4kB (UME) 282*8kB (UME) 193*16kB (UME) 123*32kB (UME) 162*64kB (UME) 47*128kB (UME) 12*256kB (UM) 6*512kB (ME) 3*1024kB (ME) 3*2048kB (M) 529*4096kB (UM) = 2208536kB Normal: 121*4kB (UME) 284*8kB (UME) 174*16kB (UME) 130*32kB (UME) 168*64kB (UME) 49*128kB (UM) 13*256kB (UME) 10*512kB (M) 3*1024kB (M) 2*2048kB (M) 628*4096kB (UM) = 2614628kB 29162 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313340 pages reserved vmalloc: allocation failure: 0 bytes syz-executor2: page allocation failure: order:0, mode:0x24000c2 CPU: 1 PID: 2876 Comm: syz-executor2 Not tainted 4.4.165+ #1 0000000000000000 593c479bcc760b1d ffff8801beb57930 ffffffff81aa5d4d 1ffff10037d6af29 ffff8801d0638000 00000000024000c2 0000000000000000 ffffffff828944c0 ffff8801beb57a40 ffffffff81487398 ffff880100000001 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] warn_alloc_failed.cold.34+0x33/0x9b mm/page_alloc.c:2757 [] __vmalloc_node_range+0x360/0x630 mm/vmalloc.c:1693 [] __vmalloc_node mm/vmalloc.c:1716 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1730 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1745 [] sel_write_load+0x135/0xfc0 security/selinux/selinuxfs.c:527 [] __vfs_write+0x11c/0x3e0 fs/read_write.c:489 [] vfs_write+0x17e/0x4e0 fs/read_write.c:538 [] SYSC_write fs/read_write.c:585 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:577 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Mem-Info: active_anon:270627 inactive_anon:396 isolated_anon:0 active_file:7883 inactive_file:20868 isolated_file:0 unevictable:0 dirty:280 writeback:0 unstable:0 slab_reclaimable:5455 slab_unreclaimable:63079 mapped:55294 shmem:411 pagetables:9036 bounce:0 free:1205813 free_pcp:482 free_cma:0 DMA32 free:2208488kB min:4696kB low:5868kB high:7044kB active_anon:492076kB inactive_anon:812kB active_file:13720kB inactive_file:37184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3145324kB managed:3021792kB mlocked:0kB dirty:464kB writeback:0kB mapped:99592kB shmem:832kB slab_reclaimable:10212kB slab_unreclaimable:113340kB kernel_stack:8032kB pagetables:16992kB unstable:0kB bounce:0kB free_pcp:1160kB local_pcp:640kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 3504 3504 Normal free:2614764kB min:5580kB low:6972kB high:8368kB active_anon:590432kB inactive_anon:772kB active_file:17812kB inactive_file:46288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3588764kB mlocked:0kB dirty:656kB writeback:0kB mapped:121584kB shmem:812kB slab_reclaimable:11608kB slab_unreclaimable:138976kB kernel_stack:11040kB pagetables:19152kB unstable:0kB bounce:0kB free_pcp:768kB local_pcp:492kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA32: 182*4kB (UME) 282*8kB (UME) 193*16kB (UME) 123*32kB (UME) 162*64kB (UME) 47*128kB (UME) 12*256kB (UM) 6*512kB (ME) 3*1024kB (ME) 3*2048kB (M) 529*4096kB (UM) = 2208536kB Normal: 121*4kB (UME) 284*8kB (UME) 174*16kB (UME) 130*32kB (UME) 168*64kB (UME) 49*128kB (UM) 13*256kB (UME) 10*512kB (M) 3*1024kB (M) 2*2048kB (M) 628*4096kB (UM) = 2614628kB 29162 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313340 pages reserved vmalloc: allocation failure: 0 bytes syz-executor2: page allocation failure: order:0, mode:0x24000c2 CPU: 1 PID: 2879 Comm: syz-executor2 Not tainted 4.4.165+ #1 0000000000000000 9f2d20cc0b43f203 ffff8801d8a97930 ffffffff81aa5d4d 1ffff1003b152f29 ffff8800a63a4740 00000000024000c2 0000000000000000 ffffffff828944c0 ffff8801d8a97a40 ffffffff81487398 ffff880100000001 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] warn_alloc_failed.cold.34+0x33/0x9b mm/page_alloc.c:2757 [] __vmalloc_node_range+0x360/0x630 mm/vmalloc.c:1693 [] __vmalloc_node mm/vmalloc.c:1716 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1730 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1745 [] sel_write_load+0x135/0xfc0 security/selinux/selinuxfs.c:527 [] __vfs_write+0x11c/0x3e0 fs/read_write.c:489 [] vfs_write+0x17e/0x4e0 fs/read_write.c:538 [] SYSC_write fs/read_write.c:585 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:577 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Mem-Info: active_anon:270627 inactive_anon:396 isolated_anon:0 active_file:7883 inactive_file:20868 isolated_file:0 unevictable:0 dirty:280 writeback:0 unstable:0 slab_reclaimable:5455 slab_unreclaimable:63079 mapped:55294 shmem:411 pagetables:9036 bounce:0 free:1205813 free_pcp:482 free_cma:0 DMA32 free:2208488kB min:4696kB low:5868kB high:7044kB active_anon:492076kB inactive_anon:812kB active_file:13720kB inactive_file:37184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3145324kB managed:3021792kB mlocked:0kB dirty:464kB writeback:0kB mapped:99592kB shmem:832kB slab_reclaimable:10212kB slab_unreclaimable:113340kB kernel_stack:8032kB pagetables:16992kB unstable:0kB bounce:0kB free_pcp:1160kB local_pcp:640kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 3504 3504 Normal free:2614764kB min:5580kB low:6972kB high:8368kB active_anon:590432kB inactive_anon:772kB active_file:17812kB inactive_file:46288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3588764kB mlocked:0kB dirty:656kB writeback:0kB mapped:121584kB shmem:812kB slab_reclaimable:11608kB slab_unreclaimable:138976kB kernel_stack:11040kB pagetables:19152kB unstable:0kB bounce:0kB free_pcp:768kB local_pcp:492kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA32: 182*4kB (UME) 282*8kB (UME) 193*16kB (UME) 123*32kB (UME) 162*64kB (UME) 47*128kB (UME) 12*256kB (UM) 6*512kB (ME) 3*1024kB (ME) 3*2048kB (M) 529*4096kB (UM) = 2208536kB Normal: 121*4kB (UME) 284*8kB (UME) 174*16kB (UME) 130*32kB (UME) 168*64kB (UME) 49*128kB (UM) 13*256kB (UME) 10*512kB (M) 3*1024kB (M) 2*2048kB (M) 628*4096kB (UM) = 2614628kB 29162 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313340 pages reserved vmalloc: allocation failure: 0 bytes syz-executor2: page allocation failure: order:0, mode:0x24000c2 CPU: 1 PID: 2922 Comm: syz-executor2 Not tainted 4.4.165+ #1 0000000000000000 f75c5d7436817c11 ffff8801bf6d7930 ffffffff81aa5d4d 1ffff10037edaf29 ffff8801c0698000 00000000024000c2 0000000000000000 ffffffff828944c0 ffff8801bf6d7a40 ffffffff81487398 ffff880100000001 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] warn_alloc_failed.cold.34+0x33/0x9b mm/page_alloc.c:2757 [] __vmalloc_node_range+0x360/0x630 mm/vmalloc.c:1693 [] __vmalloc_node mm/vmalloc.c:1716 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1730 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1745 [] sel_write_load+0x135/0xfc0 security/selinux/selinuxfs.c:527 [] __vfs_write+0x11c/0x3e0 fs/read_write.c:489 [] vfs_write+0x17e/0x4e0 fs/read_write.c:538 [] SYSC_write fs/read_write.c:585 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:577 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Mem-Info: active_anon:270627 inactive_anon:396 isolated_anon:0 active_file:7883 inactive_file:20868 isolated_file:0 unevictable:0 dirty:280 writeback:0 unstable:0 slab_reclaimable:5455 slab_unreclaimable:63163 mapped:55294 shmem:411 pagetables:9073 bounce:0 free:1205689 free_pcp:402 free_cma:0 DMA32 free:2208120kB min:4696kB low:5868kB high:7044kB active_anon:492076kB inactive_anon:812kB active_file:13720kB inactive_file:37184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3145324kB managed:3021792kB mlocked:0kB dirty:464kB writeback:0kB mapped:99592kB shmem:832kB slab_reclaimable:10212kB slab_unreclaimable:113676kB kernel_stack:8032kB pagetables:17140kB unstable:0kB bounce:0kB free_pcp:896kB local_pcp:376kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 3504 3504 Normal free:2614636kB min:5580kB low:6972kB high:8368kB active_anon:590432kB inactive_anon:772kB active_file:17812kB inactive_file:46288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3588764kB mlocked:0kB dirty:656kB writeback:0kB mapped:121584kB shmem:812kB slab_reclaimable:11608kB slab_unreclaimable:138976kB kernel_stack:11040kB pagetables:19152kB unstable:0kB bounce:0kB free_pcp:712kB local_pcp:436kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA32: 182*4kB (UME) 282*8kB (UME) 192*16kB (UME) 110*32kB (UME) 162*64kB (UME) 47*128kB (UME) 12*256kB (UM) 6*512kB (ME) 3*1024kB (ME) 3*2048kB (M) 529*4096kB (UM) = 2208104kB Normal: 121*4kB (UME) 284*8kB (UME) 174*16kB (UME) 130*32kB (UME) 166*64kB (UME) 49*128kB (UM) 13*256kB (UME) 10*512kB (M) 3*1024kB (M) 2*2048kB (M) 628*4096kB (UM) = 2614500kB 29162 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313340 pages reserved vmalloc: allocation failure: 0 bytes syz-executor1: page allocation failure: order:0, mode:0x24000c2 CPU: 1 PID: 2924 Comm: syz-executor1 Not tainted 4.4.165+ #1 0000000000000000 c740657ee86791ab ffff8801bf6df930 ffffffff81aa5d4d 1ffff10037edbf29 ffff8801bffb17c0 00000000024000c2 0000000000000000 ffffffff828944c0 ffff8801bf6dfa40 ffffffff81487398 ffff880100000001 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] warn_alloc_failed.cold.34+0x33/0x9b mm/page_alloc.c:2757 [] __vmalloc_node_range+0x360/0x630 mm/vmalloc.c:1693 [] __vmalloc_node mm/vmalloc.c:1716 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1730 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1745 [] sel_write_load+0x135/0xfc0 security/selinux/selinuxfs.c:527 [] __vfs_write+0x11c/0x3e0 fs/read_write.c:489 [] vfs_write+0x17e/0x4e0 fs/read_write.c:538 [] SYSC_write fs/read_write.c:585 [inline] [] SyS_write+0xd9/0x1c0 fs/read_write.c:577 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Mem-Info: active_anon:270627 inactive_anon:396 isolated_anon:0 active_file:7883 inactive_file:20868 isolated_file:0 unevictable:0 dirty:280 writeback:0 unstable:0 slab_reclaimable:5455 slab_unreclaimable:63163 mapped:55294 shmem:411 pagetables:9073 bounce:0 free:1205657 free_pcp:390 free_cma:0 DMA32 free:2208120kB min:4696kB low:5868kB high:7044kB active_anon:492076kB inactive_anon:812kB active_file:13720kB inactive_file:37184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3145324kB managed:3021792kB mlocked:0kB dirty:464kB writeback:0kB mapped:99592kB shmem:832kB slab_reclaimable:10212kB slab_unreclaimable:113676kB kernel_stack:8032kB pagetables:17140kB unstable:0kB bounce:0kB free_pcp:896kB local_pcp:376kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 3504 3504 Normal free:2614508kB min:5580kB low:6972kB high:8368kB active_anon:590432kB inactive_anon:772kB active_file:17812kB inactive_file:46288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3588764kB mlocked:0kB dirty:656kB writeback:0kB mapped:121584kB shmem:812kB slab_reclaimable:11608kB slab_unreclaimable:138976kB kernel_stack:11040kB pagetables:19152kB unstable:0kB bounce:0kB free_pcp:664kB local_pcp:388kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA32: 182*4kB (UME) 282*8kB (UME) 192*16kB (UME) 110*32kB (UME) 162*64kB (UME) 47*128kB (UME) 12*256kB (UM) 6*512kB (ME) 3*1024kB (ME) 3*2048kB (M) 529*4096kB (UM) = 2208104kB Normal: 121*4kB (UME) 284*8kB (UME) 174*16kB (UME) 130*32kB (UME) 165*64kB (UME) 49*128kB (UM) 13*256kB (UME) 10*512kB (M) 3*1024kB (M) 2*2048kB (M) 628*4096kB (UM) = 2614436kB 29162 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313340 pages reserved [] SYSC_ioctl fs/ioctl.c:622 [inline] [] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:613 [] entry_SYSCALL_64_fastpath+0x1e/0x9a 1 lock held by syz-executor2/26384: #0: (&tty->ldisc_sem){++++++}, at: [] tty_ldisc_ref_wait+0x2b/0xb0 drivers/tty/tty_ldisc.c:263 Sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 20 Comm: khungtaskd Not tainted 4.4.165+ #1 task: ffff8801da6f17c0 task.stack: ffff8800001c8000 RIP: 0010:[] [] native_apic_mem_write arch/x86/include/asm/apic.h:93 [inline] RIP: 0010:[] [] __default_send_IPI_dest_field arch/x86/include/asm/ipi.h:119 [inline] RIP: 0010:[] [] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:61 [inline] RIP: 0010:[] [] flat_send_IPI_mask+0xf6/0x1a0 arch/x86/kernel/apic/apic_flat_64.c:69 RSP: 0018:ffff8800001cfcc8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 RBP: ffff8800001cfcf0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 R13: 0000000003000000 R14: ffffffff82e5f3a0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 0000000002e0a000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff82e5f3a0 ffffffff831a4760 0000000000000007 fffffbfff06347cc 0000000000000008 ffff8800001cfd10 ffffffff81093951 ffffffff82921e20 0000000000000003 ffff8800001cfd68 ffffffff81ab0bfe ffffffff813a8bb0 Call Trace: [] nmi_raise_cpu_backtrace+0x61/0x80 arch/x86/kernel/apic/hw_nmi.c:33 [] nmi_trigger_all_cpu_backtrace.cold.0+0x70/0xae lib/nmi_backtrace.c:85 [] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 [] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline] [] check_hung_task kernel/hung_task.c:125 [inline] [] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [] watchdog.cold.0+0xd3/0xee kernel/hung_task.c:238 [] kthread+0x268/0x300 kernel/kthread.c:211 [] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:510 Code: 00 c3 5f ff 80 e6 10 75 e1 41 c1 e5 18 44 89 2c 25 10 c3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 c3 5f ff <41> f7 c4 00 02 00 00 75 1a 4c 89 e7 57 9d 0f 1f 44 00 00 e8 02 NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.165+ #1 task: ffff8801da6897c0 task.stack: ffff8801da698000 RIP: 0010:[] [] native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:52 RSP: 0018:ffff8801da69fda0 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffffffff83199c68 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801da68a084 RBP: ffff8801da69fda0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: fffffbfff0506ba8 R15: ffffffff83199c68 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001277188 CR3: 00000000b9e4c000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801da69fdd8 ffffffff81020d65 ffff8801da6a0000 0000000000000000 0000000000000000 fffffbfff0506ba8 ffffffff83199c68 ffff8801da69fde8 ffffffff81022f90 ffff8801da69fe00 ffffffff811e8537 dffffc0000000000 Call Trace: [] arch_safe_halt arch/x86/include/asm/paravirt.h:117 [inline] [] default_idle+0x55/0x3c0 arch/x86/kernel/process.c:432 [] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:423 [] default_idle_call+0x57/0x70 kernel/sched/idle.c:93 [] cpuidle_idle_call kernel/sched/idle.c:157 [inline] [] cpu_idle_loop kernel/sched/idle.c:253 [inline] [] cpu_startup_entry+0x31a/0x7a0 kernel/sched/idle.c:301 [] start_secondary+0x329/0x400 arch/x86/kernel/smpboot.c:245 Code: 00 00 00 00 00 55 48 89 e5 fa 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 66 0f 1f 84