Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts.
[   33.034289] random: sshd: uninitialized urandom read (32 bytes read, 127 bits of entropy available)
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[   33.564071] random: nonblocking pool is initialized
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[   33.613250] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller135839/4058
[   33.621992] caller is __this_cpu_preempt_check+0x1c/0x20
[   33.627473] CPU: 1 PID: 4058 Comm: syzkaller135839 Not tainted 4.4.113-g962d1f3 #2
[   33.635167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.644510]  0000000000000000 a1647996167a0784 ffff8800b5b9f648 ffffffff81d028ed
[   33.652554]  0000000000000001 ffffffff839fe3a0 ffffffff83cef6a0 ffff8801d700c740
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[   33.660631]  0000000000000003 ffff8800b5b9f688 ffffffff81d62834 ffffffff810002b8
[   33.668688] Call Trace:
[   33.671261]  [<ffffffff81d028ed>] dump_stack+0xc1/0x124
[   33.676621]  [<ffffffff81d62834>] check_preemption_disabled+0x1d4/0x200
[   33.683368]  [<ffffffff810002b8>] ? 0xffffffff810002b8
[   33.688650]  [<ffffffff81d6289c>] __this_cpu_preempt_check+0x1c/0x20
[   33.695145]  [<ffffffff831289d9>] tcp_try_coalesce+0x249/0x4d0
[   33.701106]  [<ffffffff83128790>] ? tcp_parse_options+0x970/0x970
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[   33.707334]  [<ffffffff82e1ff9c>] ? skb_copy_datagram_from_iter+0x38c/0x5a0
[   33.714443]  [<ffffffff83130b57>] tcp_queue_rcv+0x127/0x720
[   33.720149]  [<ffffffff8314842b>] tcp_send_rcvq+0x39b/0x450
[   33.725852]  [<ffffffff83148090>] ? tcp_rcv_established+0x2230/0x2230
[   33.732436]  [<ffffffff8113bd00>] ? do_softirq.part.17+0x40/0x60
[   33.738582]  [<ffffffff81235cfb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   33.745418]  [<ffffffff82df2ad0>] ? lock_sock_nested+0x90/0x120
[   33.751481]  [<ffffffff81235f0d>] ? trace_hardirqs_on+0xd/0x10
[   33.757449]  [<ffffffff8113bd8a>] ? __local_bh_enable_ip+0x6a/0xd0
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[   33.763760]  [<ffffffff8311f71f>] tcp_sendmsg+0x1e8f/0x2b10
[   33.769475]  [<ffffffff81236530>] ? debug_check_no_locks_freed+0x2c0/0x2c0
[   33.776486]  [<ffffffff81b67052>] ? sock_has_perm+0x1c2/0x3e0
[   33.782364]  [<ffffffff8311d890>] ? tcp_sendpage+0x1830/0x1830
[   33.788327]  [<ffffffff831d5141>] ? inet_sendmsg+0x201/0x4c0
[   33.794109]  [<ffffffff831d51fc>] inet_sendmsg+0x2bc/0x4c0
[   33.799720]  [<ffffffff831d4fb3>] ? inet_sendmsg+0x73/0x4c0
[   33.805431]  [<ffffffff831d4f40>] ? inet_recvmsg+0x4c0/0x4c0
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[   33.811223]  [<ffffffff82dea20a>] sock_sendmsg+0xca/0x110
[   33.816732]  [<ffffffff82debde1>] ___sys_sendmsg+0x6c1/0x7c0
[   33.822513]  [<ffffffff82deb720>] ? copy_msghdr_from_user+0x550/0x550
[   33.829099]  [<ffffffff81437570>] ? __alloc_pages_direct_compact+0x250/0x250
[   33.836282]  [<ffffffff815772f2>] ? __fget+0x232/0x3b0
[   33.841542]  [<ffffffff81577107>] ? __fget+0x47/0x3b0
[   33.846711]  [<ffffffff81577551>] ? __fget_light+0xa1/0x1e0
[   33.852397]  [<ffffffff815776a8>] ? __fdget+0x18/0x20
[   33.857572]  [<ffffffff82de7908>] ? sockfd_lookup_light+0x118/0x160
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[   33.863972]  [<ffffffff82dede33>] __sys_sendmsg+0xd3/0x190
[   33.869591]  [<ffffffff82dedd60>] ? SyS_shutdown+0x1b0/0x1b0
[   33.875471]  [<ffffffff81578d74>] ? __fd_install+0x224/0x5f0
[   33.881271]  [<ffffffff810dc6f0>] ? __do_page_fault+0x380/0xa00
[   33.887327]  [<ffffffff82ed7bca>] compat_SyS_sendmsg+0x2a/0x40
[   33.893298]  [<ffffffff82ed7ba0>] ? compat_SyS_getsockopt+0x2a0/0x2a0
[   33.899955]  [<ffffffff81006d74>] do_fast_syscall_32+0x314/0x890
[   33.906091]  [<ffffffff8377362a>] sysenter_flags_fixed+0xd/0x17
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[   34.199065] BUG: using __this_cpu_add() in preemptible [00000000] code: syzkaller135839/4052
[   34.207721] caller is __this_cpu_preempt_check+0x1c/0x20
[   34.213295] CPU: 1 PID: 4052 Comm: syzkaller135839 Not tainted 4.4.113-g962d1f3 #2
[   34.220999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.230334]  0000000000000000 33b3908216bf047c ffff8801d7bcf648 ffffffff81d028ed
[   34.238315]  0000000000000001 ffffffff839fe3a0 ffffffff83cef6a0 ffff8801d7008000
[   34.246294]  0000000000000003 ffff8801d7bcf688 ffffffff81d62834 ffffffff810002b8
[   34.254292] Call Trace:
[   34.256854]  [<ffffffff81d028ed>] dump_stack+0xc1/0x124
[   34.262190]  [<ffffffff81d62834>] check_preemption_disabled+0x1d4/0x200
[   34.268919]  [<ffffffff810002b8>] ? 0xffffffff810002b8
[   34.274169]  [<ffffffff81d6289c>] __this_cpu_preempt_check+0x1c/0x20
[   34.280636]  [<ffffffff831289d9>] tcp_try_coalesce+0x249/0x4d0
[   34.286578]  [<ffffffff83128790>] ? tcp_parse_options+0x970/0x970
[   34.292782]  [<ffffffff82e1ff9c>] ? skb_copy_datagram_from_iter+0x38c/0x5a0
[   34.299852]  [<ffffffff83130b57>] tcp_queue_rcv+0x127/0x720
[   34.305544]  [<ffffffff8314842b>] tcp_send_rcvq+0x39b/0x450
[   34.311224]  [<ffffffff83148090>] ? tcp_rcv_established+0x2230/0x2230
[   34.317775]  [<ffffffff8113bd00>] ? do_softirq.part.17+0x40/0x60
[   34.323892]  [<ffffffff81235cfb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   34.330724]  [<ffffffff82df2ad0>] ? lock_sock_nested+0x90/0x120
[   34.336765]  [<ffffffff81235f0d>] ? trace_hardirqs_on+0xd/0x10
[   34.342707]  [<ffffffff8113bd8a>] ? __local_bh_enable_ip+0x6a/0xd0
[   34.348996]  [<ffffffff8311f71f>] tcp_sendmsg+0x1e8f/0x2b10
[   34.354684]  [<ffffffff81236530>] ? debug_check_no_locks_freed+0x2c0/0x2c0
[   34.361679]  [<ffffffff81b67052>] ? sock_has_perm+0x1c2/0x3e0
[   34.367537]  [<ffffffff8311d890>] ? tcp_sendpage+0x1830/0x1830
[   34.373476]  [<ffffffff831d5141>] ? inet_sendmsg+0x201/0x4c0
[   34.379243]  [<ffffffff831d51fc>] inet_sendmsg+0x2bc/0x4c0
[   34.384849]  [<ffffffff831d4fb3>] ? inet_sendmsg+0x73/0x4c0
[   34.390528]  [<ffffffff831d4f40>] ? inet_recvmsg+0x4c0/0x4c0
[   34.396298]  [<ffffffff82dea20a>] sock_sendmsg+0xca/0x110
[   34.401804]  [<ffffffff82debde1>] ___sys_sendmsg+0x6c1/0x7c0
[   34.407571]  [<ffffffff82deb720>] ? copy_msghdr_from_user+0x550/0x550
[   34.414123]  [<ffffffff81437570>] ? __alloc_pages_direct_compact+0x250/0x250
[   34.421291]  [<ffffffff815772f2>] ? __fget+0x232/0x3b0
[   34.426538]  [<ffffffff81577107>] ? __fget+0x47/0x3b0
[   34.431706]  [<ffffffff81577551>] ? __fget_light+0xa1/0x1e0
[   34.437385]  [<ffffffff815776a8>] ? __fdget+0x18/0x20
[   34.442557]  [<ffffffff82de7908>] ? sockfd_lookup_light+0x118/0x160
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[   34.448942]  [<ffffffff82dede33>] __sys_sendmsg+0xd3/0x190
[   34.454544]  [<ffffffff82dedd60>] ? SyS_shutdown+0x1b0/0x1b0
[   34.460314]  [<ffffffff810dc6f0>] ? __do_page_fault+0x380/0xa00
[   34.466343]  [<ffffffff82ed7bca>] compat_SyS_sendmsg+0x2a/0x40
[   34.472285]  [<ffffffff82ed7ba0>] ? compat_SyS_getsockopt+0x2a0/0x2a0
[   34.478835]  [<ffffffff81006d74>] do_fast_syscall_32+0x314/0x890
[   34.484951]  [<ffffffff8377362a>] sysenter_flags_fixed+0xd/0x17
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