IPVS: Creating netns size=2552 id=6
IPVS: Creating netns size=2552 id=7
IPVS: Creating netns size=2552 id=8
ip (4098) used greatest stack depth: 24424 bytes left
BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor1/15662
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 15662 Comm: syz-executor1 Not tainted 4.4.115-g55a366596 #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 4f931c36d6e011c9 ffff8800b4fb7878 ffffffff81d03d8d
 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8800b5451800
 0000000000000003 ffff8800b4fb78b8 ffffffff81d63cd4 ffff8801d1fe1800
Call Trace:
 [<ffffffff81d03d8d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d03d8d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63cd4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d63d3c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83133ce2>] tcp_prune_queue net/ipv4/tcp_input.c:4861 [inline]
 [<ffffffff83133ce2>] tcp_try_rmem_schedule+0xf2/0x1180 net/ipv4/tcp_input.c:4337
 [<ffffffff8314a08a>] tcp_send_rcvq+0x1ba/0x450 net/ipv4/tcp_input.c:4520
 [<ffffffff831214cf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d71fc>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb92a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb92a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec878>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deed70>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff837744df>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor1/15662
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 15662 Comm: syz-executor1 Not tainted 4.4.115-g55a366596 #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 4f931c36d6e011c9 ffff8800b4fb7878 ffffffff81d03d8d
 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8800b5451800
 0000000000000003 ffff8800b4fb78b8 ffffffff81d63cd4 ffffffff8313163a
Call Trace:
 [<ffffffff81d03d8d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d03d8d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63cd4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d63d3c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83134a23>] tcp_prune_queue net/ipv4/tcp_input.c:4891 [inline]
 [<ffffffff83134a23>] tcp_try_rmem_schedule+0xe33/0x1180 net/ipv4/tcp_input.c:4337
 [<ffffffff8314a08a>] tcp_send_rcvq+0x1ba/0x450 net/ipv4/tcp_input.c:4520
 [<ffffffff831214cf>] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134
 [<ffffffff831d71fc>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82deb92a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb92a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82dec878>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82deed70>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff837744df>] entry_SYSCALL_64_fastpath+0x1c/0x98