BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5708
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5708 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 ef9342edb2b8442f ffff8800b9daf800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8800bac4b000
 0000000000000003 ffff8800b9daf840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5945
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5945 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 f36ea61b1688a4f4[   55.762783] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5947
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 ffff8801d05df800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d6a34800
 0000000000000003 ffff8801d05df840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5947 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 fb668f65435d9563 ffff8801d06af800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d6a30000
 0000000000000003 ffff8801d06af840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5867
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5867 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 a8ca979549104706 ffff8801d6d87800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800b95f3000
 0000000000000003 ffff8801d6d87840 ffffffff81d63fe4 ffff8800b95f3000
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5933
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5933 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 71077d22904a53fc ffff8800b7adf800 ffffffff81d0408d[   56.592691] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5924
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62

 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8800b95a3000
 0000000000000003 ffff8800b7adf840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5924 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5948
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 0000000000000000 a8d9fcc5b846fbbc ffff8801d0487800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7786000
 0000000000000003 ffff8801d0487840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5948 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 efe36651e6096d0a ffff8801d06bf800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7783000
 0000000000000003 ffff8801d06bf840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5708
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5708 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5944
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 ef9342edb2b8442f ffff8800b9daf800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800bac4b000
 0000000000000003 ffff8800b9daf840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5944 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 6b04af4e9ff14ebc ffff8801d0537800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d6a36000
 0000000000000003 ffff8801d0537840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5943
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5943 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 f09dd9fef3fc54e6 ffff8801d0517800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7133000
 0000000000000003 ffff8801d0517840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
check_preemption_disabled: 94 callbacks suppressed
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5660
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5660 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5829
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 0000000000000000 f11f2a574010bb19 ffff8800acec7800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800ac401800
 0000000000000003 ffff8800acec7840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5829 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 b5f6b5b241b3b490[   61.038514] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5660
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 ffff8800b9c8f800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8800b95f1800
 0000000000000003 ffff8800b9c8f840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5660 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5813
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 f11f2a574010bb19 ffff8800acec7800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800ac401800
 0000000000000003 ffff8800acec7840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5813 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5660
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 0000000000000000 6b935fe83e9f35c2 ffff8800b9567800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7a00000
 0000000000000003 ffff8800b9567840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5660 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5813
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 f11f2a574010bb19 ffff8800acec7800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800ac401800
 0000000000000003 ffff8800acec7840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5813 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5660
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 6b935fe83e9f35c2 ffff8800b9567800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7a00000
 0000000000000003 ffff8800b9567840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5660 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 f11f2a574010bb19 ffff8800acec7800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800ac401800
 0000000000000003 ffff8800acec7840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5660
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 5660 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 f11f2a574010bb19 ffff8800acec7800 ffffffff81d0408d
 0000000000000001 ffffffff839fe5a0 ffffffff83cefc20 ffff8800ac401800
 0000000000000003 ffff8800acec7840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5958
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5958 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 d1de7bf6b739d636 ffff8801c6edf800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d6930000
 0000000000000003 ffff8801c6edf840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller164898/5813
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 5813 Comm: syzkaller164898 Not tainted 4.4.120-gd63fdf6 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 6b935fe83e9f35c2 ffff8800b9567800 ffffffff81d0408d
 0000000000000000 ffffffff839fe5a0 ffffffff83cefc20 ffff8801d7a00000
 0000000000000003 ffff8800b9567840 ffffffff81d63fe4 ffffffff810002b8
Call Trace:
 [<ffffffff81d0408d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0408d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63fe4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff81d6404c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff8312b439>] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278
 [<ffffffff831335b7>] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485
 [<ffffffff8314ae8b>] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531
 [<ffffffff831220ef>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d7d4c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deba6a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deba6a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec9b8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deeeb0>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff8377395f>] entry_SYSCALL_64_fastpath+0x1c/0x98