bisecting cause commit starting from a7f89616b7376495424f682b6086e0c391a89a1d building syzkaller on 32d593576a7ee67f588218d3a44a0b69fe31b0a0 testing commit a7f89616b7376495424f682b6086e0c391a89a1d with gcc (GCC) 8.1.0 all runs: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 all runs: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in addrconf_dad_work run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in addrconf_dad_work run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 all runs: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in addrconf_dad_work testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in netlink_sendmsg run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.8 testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.7 testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in netlink_sendmsg run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.6 testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.5 testing commit b562e44f507e863c6792946e4e1b1449fbbac85d with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in netlink_sendmsg run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.4 testing commit afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.3 testing commit 6a13feb9c82803e2b815eca72fa7a9f5561d7861 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in netlink_sendmsg run #3: crashed: INFO: rcu detected stall in netlink_sendmsg run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.2 testing commit 64291f7db5bd8150a74ad2036f1037e6a0428df2 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in netlink_sendmsg run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in netlink_sendmsg testing release v4.1 testing commit b953c0d234bc72e8489d3bf51a276c5c4ec85345 with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in netlink_sendmsg run #5: crashed: INFO: rcu detected stall in netlink_sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in netlink_sendmsg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: BUG: soft lockup in netlink_sendmsg revisions tested: 24, total time: 4h1m51.586112248s (build: 1h40m20.838046898s, test: 2h14m21.323714301s) the crash already happened on the oldest tested release crash: BUG: soft lockup in netlink_sendmsg IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready NMI watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.3:6003] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [< (null)>] (null) hardirqs last disabled at (0): [] copy_process.part.30+0x59f/0x1bc0 kernel/fork.c:1373 softirqs last enabled at (0): [] copy_process.part.30+0x59f/0x1bc0 kernel/fork.c:1373 softirqs last disabled at (0): [< (null)>] (null) CPU: 0 PID: 6003 Comm: syz-executor.3 Not tainted 4.1.0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88012a4ec290 ti: ffff8800bab0c000 task.ti: ffff8800bab0c000 RIP: 0010:[] [] list_empty include/linux/list.h:189 [inline] RIP: 0010:[] [] hhf_dequeue+0x30/0x190 net/sched/sch_hhf.c:441 RSP: 0018:ffff8800bab0f9a8 EFLAGS: 00000292 RAX: ffff8800b1e3f250 RBX: ffff8800b1e3f1b8 RCX: dead000000200200 RDX: ffff8800b1e3f250 RSI: ffff8800b1e3f250 RDI: ffff8800b1e3f1b8 RBP: ffff8800bab0f9d8 R08: ffff8800b1e3f250 R09: 0000000000000024 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8800bab0f998 FS: 00007f6a66b36700(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000012adb4000 CR4: 00000000001407f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: 0000000000000002 ffff8800b73a5e00 0000000000000000 0000000000000000 ffff8800b73a5e00 ffff8800b1e3f000 ffff8800bab0fa38 ffffffff8212c0a7 ffff8800b1e3f0b0 ffff8800b1e3f0b0 ffff8800bab10000 00000040000003fd Call Trace: [] dequeue_skb net/sched/sch_generic.c:103 [inline] [] qdisc_restart net/sched/sch_generic.c:220 [inline] [] __qdisc_run+0x67/0x1c0 net/sched/sch_generic.c:236 [] __dev_xmit_skb net/core/dev.c:2857 [inline] [] __dev_queue_xmit+0x406/0x950 net/core/dev.c:2965 [] dev_queue_xmit_sk+0xe/0x10 net/core/dev.c:3031 [] dev_queue_xmit include/linux/netdevice.h:2178 [inline] [] __netlink_deliver_tap_skb net/netlink/af_netlink.c:214 [inline] [] __netlink_deliver_tap+0x104/0x150 net/netlink/af_netlink.c:232 [] netlink_deliver_tap net/netlink/af_netlink.c:243 [inline] [] __netlink_sendskb+0x130/0x140 net/netlink/af_netlink.c:1697 [] netlink_sendskb net/netlink/af_netlink.c:1713 [inline] [] netlink_unicast+0x226/0x2e0 net/netlink/af_netlink.c:1804 [] netlink_ack+0x98/0x120 net/netlink/af_netlink.c:2816 [] netlink_rcv_skb+0x9e/0xd0 net/netlink/af_netlink.c:2849 [] rtnetlink_rcv+0x29/0x40 net/core/rtnetlink.c:3256 [] netlink_unicast_kernel net/netlink/af_netlink.c:1763 [inline] [] netlink_unicast+0x1ca/0x2e0 net/netlink/af_netlink.c:1789 [] netlink_sendmsg+0x310/0x3d0 net/netlink/af_netlink.c:2353 [] sock_sendmsg_nosec net/socket.c:613 [inline] [] sock_sendmsg+0x35/0x40 net/socket.c:623 [] ___sys_sendmsg+0x2c3/0x2d0 net/socket.c:1955 [] __sys_sendmsg+0x3d/0x80 net/socket.c:1989 [] SYSC_sendmsg net/socket.c:2000 [inline] [] SyS_sendmsg+0xd/0x20 net/socket.c:1996 [] system_call_fastpath+0x16/0x7a Code: 57 41 56 4c 8d bf 40 02 00 00 41 55 4c 8d b7 80 01 00 00 41 54 4c 8d af 50 02 00 00 49 89 fc 53 48 83 ec 08 0f 1f 80 00 00 00 00 <49> 8b 9c 24 40 02 00 00 4c 89 fa 49 39 df 0f 84 a8 00 00 00 8b sending NMI to other CPUs: NMI backtrace for cpu 1 CPU: 1 PID: 5784 Comm: syz-executor.1 Not tainted 4.1.0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8800b7324490 ti: ffff88012a69c000 task.ti: ffff88012a69c000 RIP: 0010:[] [] paravirt_read_tsc arch/x86/include/asm/paravirt.h:179 [inline] RIP: 0010:[] [] delay_tsc+0x39/0xe0 arch/x86/lib/delay.c:61 RSP: 0018:ffff88012a69fbb8 EFLAGS: 00000202 RAX: 0000005c5d85018f RBX: 0000000000000001 RCX: ffff8800ba680402 RDX: 0000005c00000000 RSI: ffffffff82ede2e7 RDI: ffffffff82e9a095 RBP: ffff88012a69fbd8 R08: 0000000000000001 R09: 0000000000000000 R10: ffff8800b7324490 R11: 0000000000000000 R12: 000000005d85018f R13: 0000000000000001 R14: 000000007e1107c1 R15: ffff8800b7149e00 FS: 0000000001032940(0063) GS:ffff88012c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdf2be8fe8 CR3: 000000012a8e6000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8800b1e3f0b0 ffff8800ba680402 0000000089173700 000000007e1107c1 ffff88012a69fbe8 ffffffff818e82ba ffff88012a69fc18 ffffffff811ca74a ffff8800b1e3f0b0 ffff8800ba686000 0000000000000001 ffff8800b73a5e00 Call Trace: [] __delay+0xa/0x10 arch/x86/lib/delay.c:111 [] __spin_lock_debug kernel/locking/spinlock_debug.c:114 [inline] [] do_raw_spin_lock+0xaa/0x200 kernel/locking/spinlock_debug.c:137 [] __raw_spin_lock include/linux/spinlock_api_smp.h:145 [inline] [] _raw_spin_lock+0x3e/0x50 kernel/locking/spinlock.c:151 [] spin_lock include/linux/spinlock.h:312 [inline] [] __dev_xmit_skb net/core/dev.c:2826 [inline] [] __dev_queue_xmit+0x261/0x950 net/core/dev.c:2965 [] dev_queue_xmit_sk+0xe/0x10 net/core/dev.c:3031 [] dev_queue_xmit include/linux/netdevice.h:2178 [inline] [] __netlink_deliver_tap_skb net/netlink/af_netlink.c:214 [inline] [] __netlink_deliver_tap+0x104/0x150 net/netlink/af_netlink.c:232 [] netlink_deliver_tap net/netlink/af_netlink.c:243 [inline] [] netlink_deliver_tap_kernel net/netlink/af_netlink.c:252 [inline] [] netlink_unicast_kernel net/netlink/af_netlink.c:1762 [inline] [] netlink_unicast+0x2bf/0x2e0 net/netlink/af_netlink.c:1789 [] netlink_sendmsg+0x310/0x3d0 net/netlink/af_netlink.c:2353 [] sock_sendmsg_nosec net/socket.c:613 [inline] [] sock_sendmsg+0x35/0x40 net/socket.c:623 [] SYSC_sendto+0xf2/0x170 net/socket.c:1660 [] SyS_sendto+0x9/0x10 net/socket.c:1628 [] system_call_fastpath+0x16/0x7a Code: 01 00 00 00 e8 59 38 8b ff e8 34 12 01 00 0f ae e8 48 83 3d 39 d5 94 01 00 74 77 41 89 c5 e8 2f fa 79 ff 66 90 41 89 c4 0f ae e8 <48> 83 3d 1f d5 94 01 00 74 5d e8 18 fa 79 ff 66 90 41 89 c6 44