IPVS: set_ctl: invalid protocol: 94 127.0.0.1:20002 none
IPVS: set_ctl: invalid protocol: 94 127.0.0.1:20002 none
encrypted_key: insufficient parameters specified
INFO: task syz-executor1:20875 blocked for more than 120 seconds.
      Not tainted 4.4.132-g4f75c34 #42
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor1   D ffff8800b59af460 28704 20875   3833 0x20020004
 ffff8800b59af460 0000000000000000 0000000000000001 ffff8801d9b33000
 ffff8800b59af400 ffff8801db31fdb8 ffff8801db31fde0 ffff8801db31f4d8
 ffff8801db31f4c0 ffff8801cecd9800 ffff8801d9b33000 0000000000000000
Call Trace:
 [<ffffffff838b220a>] schedule+0x7a/0x1b0 kernel/sched/core.c:3359
 [<ffffffff838bd621>] schedule_timeout+0x481/0x8b0 kernel/time/timer.c:1515
 [<ffffffff838b00ca>] io_schedule_timeout+0x1ba/0x390 kernel/sched/core.c:4941
 [<ffffffff838b345b>] io_schedule include/linux/sched.h:447 [inline]
 [<ffffffff838b345b>] bit_wait_io+0x1b/0xd0 kernel/sched/wait.c:595
 [<ffffffff838b2fc2>] __wait_on_bit_lock.part.4+0x92/0x140 kernel/sched/wait.c:434
 [<ffffffff838b3079>] __wait_on_bit_lock+0x9/0x10 kernel/sched/wait.c:427
 [<ffffffff8141ca5d>] __lock_page+0x17d/0x1f0 mm/filemap.c:888
 [<ffffffff815b915b>] lock_page include/linux/pagemap.h:458 [inline]
 [<ffffffff815b915b>] __generic_file_splice_read+0x7eb/0xbb0 fs/splice.c:412
 [<ffffffff815b9602>] generic_file_splice_read+0xe2/0x1c0 fs/splice.c:542
 [<ffffffff815b5757>] do_splice_to+0xf7/0x140 fs/splice.c:1154
 [<ffffffff815b59e2>] splice_direct_to_actor+0x242/0x830 fs/splice.c:1226
 [<ffffffff815b6173>] do_splice_direct+0x1a3/0x270 fs/splice.c:1337
 [<ffffffff8151ff14>] do_sendfile+0x4e4/0xb80 fs/read_write.c:1227
 [<ffffffff81522061>] C_SYSC_sendfile fs/read_write.c:1303 [inline]
 [<ffffffff81522061>] compat_SyS_sendfile+0xd1/0x160 fs/read_write.c:1292
 [<ffffffff81006d96>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d96>] do_fast_syscall_32+0x326/0x8b0 arch/x86/entry/common.c:459
 [<ffffffff838c1b6a>] sysenter_flags_fixed+0xd/0x17
no locks held by syz-executor1/20875.
Sending NMI to all CPUs:
NMI backtrace for cpu 0
CPU: 0 PID: 3636 Comm: rsyslogd Not tainted 4.4.132-g4f75c34 #42
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800b11c3000 task.stack: ffff8800b47c0000
RIP: 0010:[<ffffffff814f3e61>]  [<ffffffff814f3e61>] constant_test_bit arch/x86/include/asm/bitops.h:311 [inline]
RIP: 0010:[<ffffffff814f3e61>]  [<ffffffff814f3e61>] PageSlab include/linux/page-flags.h:217 [inline]
RIP: 0010:[<ffffffff814f3e61>]  [<ffffffff814f3e61>] PageSlabPfmemalloc include/linux/page-flags.h:558 [inline]
RIP: 0010:[<ffffffff814f3e61>]  [<ffffffff814f3e61>] pfmemalloc_match mm/slub.c:2343 [inline]
RIP: 0010:[<ffffffff814f3e61>]  [<ffffffff814f3e61>] ___slab_alloc.constprop.76+0x31/0x550 mm/slub.c:2433
RSP: 0018:ffff8800b47c7a50  EFLAGS: 00000086
RAX: 8000000000004080 RBX: 0000000000022cf0 RCX: ffff8801db222cf0
RDX: ffffffff8125bbe3 RSI: 00000000024000c0 RDI: ffff8801da001140
RBP: ffff8800b47c7af8 R08: ffff8800b11c3900 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0007621600
R13: ffff8801db222cf0 R14: ffff8801da001140 R15: ffffffff8125bbe3
FS:  00007fa68c926700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001200000 CR3: 00000000b6b8c000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8800b47c7a90 ffffffff81229462 ffff8800b11c38d8 ffffffff8125bbe3
 ffff8800b11c3000 ffffffff844bdba0 00000000024000c0 0000000000000400
 ffff8800b47c7ab8 0000000000000246 ffff8800b11c3000 ffff8800b47c7ae8
Call Trace:
 [<ffffffff814f43d0>] __slab_alloc.isra.72.constprop.75+0x50/0xa0 mm/slub.c:2518
 [<ffffffff814f4833>] slab_alloc_node mm/slub.c:2581 [inline]
 [<ffffffff814f4833>] slab_alloc mm/slub.c:2623 [inline]
 [<ffffffff814f4833>] kmem_cache_alloc_trace+0x173/0x2c0 mm/slub.c:2640
 [<ffffffff8125bbe3>] kmalloc include/linux/slab.h:476 [inline]
 [<ffffffff8125bbe3>] syslog_print kernel/printk/printk.c:1148 [inline]
 [<ffffffff8125bbe3>] do_syslog+0x603/0xb20 kernel/printk/printk.c:1331
 [<ffffffff8169a714>] kmsg_read+0x74/0xa0 fs/proc/kmsg.c:39
 [<ffffffff81670da9>] proc_reg_read+0xf9/0x180 fs/proc/inode.c:202
 [<ffffffff8151c08c>] __vfs_read+0x11c/0x3e0 fs/read_write.c:432
 [<ffffffff8151de80>] vfs_read+0x130/0x360 fs/read_write.c:454
 [<ffffffff81520689>] SYSC_read fs/read_write.c:569 [inline]
 [<ffffffff81520689>] SyS_read+0xd9/0x1c0 fs/read_write.c:562
 [<ffffffff838c0225>] entry_SYSCALL_64_fastpath+0x22/0x9e
Code: 41 56 49 89 fe 41 55 49 89 cd 41 54 53 48 83 e4 f0 48 83 c4 80 4c 8b 61 10 89 74 24 30 48 89 54 24 18 4d 85 e4 74 7e 49 8b 04 24 <a8> 80 0f 84 ca 02 00 00 49 8b 04 24 a8 40 75 3e 4d 8b 7d 00 4d 
NMI backtrace for cpu 1
CPU: 1 PID: 491 Comm: khungtaskd Not tainted 4.4.132-g4f75c34 #42
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8800bb34b000 task.stack: ffff8801d8c40000
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] native_apic_mem_write arch/x86/include/asm/apic.h:94 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] __default_send_IPI_dest_field arch/x86/include/asm/ipi.h:119 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:61 [inline]
RIP: 0010:[<ffffffff810bfe16>]  [<ffffffff810bfe16>] flat_send_IPI_mask+0xf6/0x1a0 arch/x86/kernel/apic/apic_flat_64.c:69
RSP: 0018:ffff8801d8c47cc8  EFLAGS: 00000046
RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000
RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300
RBP: ffff8801d8c47cf0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246
R13: 0000000000000003 R14: 0000000000000002 R15: ffffffff8446f7a0
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd501b8b000 CR3: 00000001cfa6a000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff8446f7a0 ffffffff84a18a60 0000000000000007 fffffbfff0942bfc
 0000000000000040 ffff8801d8c47d10 ffffffff810b5dd1 ffffffff83c0b1a0
 0000000000000003 ffff8801d8c47d68 ffffffff81e19003 ffff8801d9b33000
Call Trace:
 [<ffffffff810b5dd1>] nmi_raise_cpu_backtrace+0x61/0x80 arch/x86/kernel/apic/hw_nmi.c:33
 [<ffffffff81e19003>] nmi_trigger_all_cpu_backtrace.cold.4+0x70/0xad lib/nmi_backtrace.c:85
 [<ffffffff810b5e74>] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 [<ffffffff8141a0b9>] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline]
 [<ffffffff8141a0b9>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8141a0b9>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8141a0b9>] watchdog.cold.1+0xd3/0xee kernel/hung_task.c:238
 [<ffffffff81190768>] kthread+0x268/0x300 kernel/kthread.c:211
 [<ffffffff838c0655>] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:510
Code: b3 5f ff f6 c4 10 75 e2 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 f2 09 da 80 cf 04 41 83 fe 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 75 1a 4c 89 e7 57 9d 0f 1f 44 00 00 e8 f2