check_preemption_disabled: 2 callbacks suppressed
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.1/7903
caller is dev_recursion_level include/linux/netdevice.h:3052 [inline]
caller is sk_mc_loop+0x1d/0x210 net/core/sock.c:705
CPU: 1 PID: 7903 Comm: syz-executor.1 Not tainted 5.1.0-rc3-next-20190405 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 __this_cpu_preempt_check+0x246/0x270 lib/smp_processor_id.c:47
 dev_recursion_level include/linux/netdevice.h:3052 [inline]
 sk_mc_loop+0x1d/0x210 net/core/sock.c:705
 ip_mc_output+0x2ef/0xf70 net/ipv4/ip_output.c:352
 dst_output include/net/dst.h:433 [inline]
 ip_local_out+0xc4/0x1b0 net/ipv4/ip_output.c:124
 ip_send_skb+0x42/0xf0 net/ipv4/ip_output.c:1462
 udp_send_skb.isra.0+0x6b2/0x1180 net/ipv4/udp.c:901
 udp_push_pending_frames+0x5c/0xf0 net/ipv4/udp.c:929
 udp_sendpage+0x30c/0x480 net/ipv4/udp.c:1300
 inet_sendpage+0x16b/0x630 net/ipv4/af_inet.c:819
 kernel_sendpage+0x95/0xf0 net/socket.c:3643
 sock_sendpage+0x8b/0xc0 net/socket.c:934
 pipe_to_sendpage+0x299/0x370 fs/splice.c:448
 splice_from_pipe_feed fs/splice.c:499 [inline]
 __splice_from_pipe+0x395/0x7d0 fs/splice.c:623
 splice_from_pipe+0x108/0x170 fs/splice.c:658
 generic_splice_sendpage+0x3c/0x50 fs/splice.c:828
 do_splice_from fs/splice.c:847 [inline]
 do_splice+0x70a/0x13c0 fs/splice.c:1154
 __do_sys_splice fs/splice.c:1424 [inline]
 __se_sys_splice fs/splice.c:1404 [inline]
 __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4582b9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f7f548a9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000004582b9
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000073bfa0 R08: 0000000000810003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f548aa6d4
R13: 00000000004c70e6 R14: 00000000004dc0e0 R15: 00000000ffffffff