BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5509
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5509 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 2420b507c97feac3 ffff8801c9f676c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801d94e3000
 0000000000000003 ffff8801c9f67708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5564
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5564 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 88d95da041cbb024 ffff8800b54bf6c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801d9336000
 0000000000000003 ffff8800b54bf708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5673
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5673 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 c7bad8ecacace72d ffff8800b75f76c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801c88db000
 0000000000000003 ffff8800b75f7708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5672
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5672 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 b99f6133099efb9e ffff8800b9d9f6c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801c88d9800
 0000000000000003 ffff8800b9d9f708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5576
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5576 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 630381ad8b8db620 ffff8801d8af76c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8800ad0a6000
 0000000000000003 ffff8801d8af7708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5509
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5509 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 2420b507c97feac3 ffff8801c9f676c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801d94e3000
 0000000000000003 ffff8801c9f67708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5682
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5682 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 284327d41a91cb54 ffff8801c9ecf6c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8800ba770000
 0000000000000003 ffff8801c9ecf708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5672
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5672 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 b99f6133099efb9e ffff8800b9d9f6c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801c88d9800
 0000000000000003 ffff8800b9d9f708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5517
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5517 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 8f926b91f6e5f8b2 ffff8800ae0276c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801ca331800
 0000000000000003 ffff8800ae027708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
check_preemption_disabled: 14 callbacks suppressed
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5650
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5650 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5727
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 e36d38afdb737d73 ffff8800b8c676c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8800b8c58000
 0000000000000003 ffff8800b8c67708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5727 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 13eda192bd3f9a8e ffff8801c9d976c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801d4590000
 0000000000000003 ffff8801c9d97708 ffffffff81d63894[   44.491675] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5682
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5682 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 284327d41a91cb54 ffff8801c9ecf6c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8800ba770000
 0000000000000003 ffff8801c9ecf708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5673
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5673 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 c7bad8ecacace72d ffff8800b75f76c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801c88db000
 0000000000000003 ffff8800b75f7708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5576
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5576 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 630381ad8b8db620 ffff8801d8af76c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8800ad0a6000
 0000000000000003 ffff8801d8af7708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5727
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5727 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 13eda192bd3f9a8e ffff8801c9d976c8 ffffffff81d0394d
 0000000000000000[   45.983226] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5674
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 ffffffff839fe3a0 ffffffff83cef720 ffff8801d4590000
 0000000000000003 ffff8801c9d97708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5674 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000[   46.250329] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5564
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 73b495c29ff02617 ffff8801d81276c8 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83cef720 ffff8801d8ba8000
 0000000000000003 ffff8801d8127708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5564 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 88d95da041cbb024 ffff8800b54bf6c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801d9336000
 0000000000000003 ffff8800b54bf708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5727
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5727 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 13eda192bd3f9a8e ffff8801c9d976c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8801d4590000
 0000000000000003 ffff8801c9d97708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller100327/5750
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5750 Comm: syzkaller100327 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 7a7dce0eabec26e9 ffff8800b94e76c8 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83cef720 ffff8800b95c4800
 0000000000000003 ffff8800b94e7708 ffffffff81d63894 ffffffff810002b8
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312a229>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831323a7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff83149c7b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff83120edf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d6c0c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98