Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF[   26.348434] ==================================================================
/eth0/42:01:0a:8[   26.356655] BUG: KMSAN: uninit-value in receive_mergeable drivers/net/virtio_net.c:817 [inline]
/eth0/42:01:0a:8[   26.356655] BUG: KMSAN: uninit-value in receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
0:0a:2c
[   26.364266] CPU: 0 PID: 2165 Comm: startpar Not tainted 4.17.0+ #2
[   26.371340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.380685] Call Trace:
[   26.383247]  <IRQ>
[   26.385390]  __dump_stack lib/dump_stack.c:77 [inline]
[   26.385390]  dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[   26.388997]  kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
[   26.392780]  __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[   26.396821]  receive_mergeable drivers/net/virtio_net.c:817 [inline]
[   26.396821]  receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[   26.400694]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   26.400694]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   26.404563]  ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[   26.408432]  napi_poll net/core/dev.c:5735 [inline]
[   26.408432]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   26.412390]  ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[   26.416454]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   26.420236]  invoke_softirq kernel/softirq.c:365 [inline]
[   26.420236]  irq_exit+0x202/0x240 kernel/softirq.c:405
[   26.423670]  exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[   26.427116]  do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[   26.430396]  common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[   26.434183]  </IRQ>
[   26.436405] RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:37 [inline]
[   26.436405] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:78 [inline]
[   26.436405] RIP: 0010:__msan_memset+0x96/0xd0 mm/kmsan/kmsan_instr.c:447
[   26.440875] RSP: 0018:ffff8801cbb8fc08 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffd9
[   26.448563] RAX: ffff8801cbbdfce8 RBX: ffff8801d8a5d7c0 RCX: 0000000000000007
[   26.455826] RDX: 0000000000000006 RSI: ffffea000ac655e8 RDI: ffff8801cbb8fce8
[   26.463087] RBP: ffff8801cbb8fc40 R08: 0000000001080020 R09: ffff8801cbb6fce8
[   26.470363] R10: 0000000000000000 R11: ffffffff847d4680 R12: ffff8801cbb8fce8
[   26.477616] R13: 0000000000000202 R14: ffff8801cbb8fce8 R15: 0000000000000018
[   26.484883]  ? serial8250_get_mctrl+0x360/0x360 drivers/tty/serial/8250/8250_port.c:595
[   26.489539]  fsnotify+0xee/0x17d0 fs/notify/fsnotify.c:275
[   26.492986]  ? __fsnotify_parent+0x75/0x560 fs/notify/fsnotify.c:147
[   26.497290]  ? __fsnotify_parent+0x9d/0x560 fs/notify/fsnotify.c:152
[   26.501595]  ? __fsnotify_parent+0x132/0x560 fs/notify/fsnotify.c:155
[   26.505988]  fsnotify_modify include/linux/fsnotify.h:207 [inline]
[   26.505988]  vfs_write+0x66b/0x8c0 fs/read_write.c:551
[   26.509527]  ksys_write fs/read_write.c:598 [inline]
[   26.509527]  __do_sys_write fs/read_write.c:610 [inline]
[   26.509527]  __se_sys_write fs/read_write.c:607 [inline]
[   26.509527]  __x64_sys_write+0x1bf/0x3e0 fs/read_write.c:607
[   26.513573]  ? ksys_write+0x360/0x360 fs/read_write.c:568
[   26.517353]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   26.521237]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   26.526407] RIP: 0033:0x7fa6114cc370
[   26.530095] RSP: 002b:00007ffc57cd6a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   26.537786] RAX: ffffffffffffffda RBX: 0000000001080638 RCX: 00007fa6114cc370
[   26.545043] RDX: 0000000000000028 RSI: 0000000001080638 RDI: 0000000000000002
[   26.552304] RBP: 00000000010805f0 R08: 0000000000000001 R09: 0000000000000002
[   26.559556] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000010805f0
[   26.566827] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b1fec4c
[   26.574080] 
[   26.575687] Uninit was stored to memory at:
[   26.579994]  kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[   26.579994]  kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
[   26.579994]  kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
[   26.585086]  __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
[   26.589301]  receive_mergeable drivers/net/virtio_net.c:690 [inline]
[   26.589301]  receive_buf+0x2dbb/0x6ae0 drivers/net/virtio_net.c:917
[   26.593169]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   26.593169]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   26.597042]  napi_poll net/core/dev.c:5735 [inline]
[   26.597042]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   26.601004]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   26.604798] Uninit was created at:
[   26.608322]  kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[   26.608322]  kmsan_alloc_meta_for_pages+0x161/0x3a0 mm/kmsan/kmsan.c:815
[   26.613317]  kmsan_alloc_page+0x82/0xe0 mm/kmsan/kmsan.c:885
[   26.617268]  __alloc_pages_nodemask+0xf7b/0x5cc0 mm/page_alloc.c:4402
[   26.622019]  alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093
[   26.626414]  alloc_pages include/linux/gfp.h:494 [inline]
[   26.626414]  skb_page_frag_refill+0x3ba/0x5e0 net/core/sock.c:2211
[   26.630885]  add_recvbuf_mergeable drivers/net/virtio_net.c:1067 [inline]
[   26.630885]  try_fill_recv+0x3d5/0x2580 drivers/net/virtio_net.c:1108
[   26.634842]  virtnet_open+0x188/0x600 drivers/net/virtio_net.c:1311
[   26.638619]  __dev_open+0x613/0x840 net/core/dev.c:1392
[   26.642225]  __dev_change_flags+0x401/0xb60 net/core/dev.c:6955
[   26.646526]  dev_change_flags+0xca/0x230 net/core/dev.c:7024
[   26.650564]  do_setlink+0x165b/0x6010 net/core/rtnetlink.c:2362
[   26.654342]  rtnl_newlink+0x2b33/0x37a0 net/core/rtnetlink.c:2970
[   26.658303]  rtnetlink_rcv_msg+0xa44/0x1570 net/core/rtnetlink.c:4646
[   26.662615]  netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
[   26.666654]  rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4664
[   26.670346]  netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
[   26.670346]  netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
[   26.674559]  netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
[   26.678788]  sock_sendmsg_nosec net/socket.c:629 [inline]
[   26.678788]  sock_sendmsg net/socket.c:639 [inline]
[   26.678788]  ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
[   26.682843]  __sys_sendmsg net/socket.c:2155 [inline]
[   26.682843]  __do_sys_sendmsg net/socket.c:2164 [inline]
[   26.682843]  __se_sys_sendmsg net/socket.c:2162 [inline]
[   26.682843]  __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
[   26.687064]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   26.690939]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   26.696109] ==================================================================
[   26.703464] Disabling lock debugging due to kernel taint
[   26.708915] Kernel panic - not syncing: panic_on_warn set ...
[   26.708915] 
[   26.716278] CPU: 0 PID: 2165 Comm: startpar Tainted: G    B             4.17.0+ #2
[   26.723966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.733300] Call Trace:
[   26.735859]  <IRQ>
[   26.737997]  __dump_stack lib/dump_stack.c:77 [inline]
[   26.737997]  dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[   26.741609]  panic+0x3d0/0x990 kernel/panic.c:184
[   26.744785]  kmsan_report+0x29e/0x2a0 mm/kmsan/kmsan.c:1136
[   26.748579]  __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[   26.752645]  receive_mergeable drivers/net/virtio_net.c:817 [inline]
[   26.752645]  receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[   26.756520]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   26.756520]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   26.760389]  ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[   26.764260]  napi_poll net/core/dev.c:5735 [inline]
[   26.764260]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   26.768220]  ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[   26.772262]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   26.776053]  invoke_softirq kernel/softirq.c:365 [inline]
[   26.776053]  irq_exit+0x202/0x240 kernel/softirq.c:405
[   26.779487]  exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[   26.782918]  do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[   26.786180]  common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[   26.789958]  </IRQ>
[   26.792174] RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:37 [inline]
[   26.792174] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:78 [inline]
[   26.792174] RIP: 0010:__msan_memset+0x96/0xd0 mm/kmsan/kmsan_instr.c:447
[   26.796655] RSP: 0018:ffff8801cbb8fc08 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffd9
[   26.804341] RAX: ffff8801cbbdfce8 RBX: ffff8801d8a5d7c0 RCX: 0000000000000007
[   26.811607] RDX: 0000000000000006 RSI: ffffea000ac655e8 RDI: ffff8801cbb8fce8
[   26.818870] RBP: ffff8801cbb8fc40 R08: 0000000001080020 R09: ffff8801cbb6fce8
[   26.826146] R10: 0000000000000000 R11: ffffffff847d4680 R12: ffff8801cbb8fce8
[   26.833421] R13: 0000000000000202 R14: ffff8801cbb8fce8 R15: 0000000000000018
[   26.840696]  ? serial8250_get_mctrl+0x360/0x360 drivers/tty/serial/8250/8250_port.c:595
[   26.845353]  fsnotify+0xee/0x17d0 fs/notify/fsnotify.c:275
[   26.848798]  ? __fsnotify_parent+0x75/0x560 fs/notify/fsnotify.c:147
[   26.853127]  ? __fsnotify_parent+0x9d/0x560 fs/notify/fsnotify.c:152
[   26.857459]  ? __fsnotify_parent+0x132/0x560 fs/notify/fsnotify.c:155
[   26.861885]  fsnotify_modify include/linux/fsnotify.h:207 [inline]
[   26.861885]  vfs_write+0x66b/0x8c0 fs/read_write.c:551
[   26.865439]  ksys_write fs/read_write.c:598 [inline]
[   26.865439]  __do_sys_write fs/read_write.c:610 [inline]
[   26.865439]  __se_sys_write fs/read_write.c:607 [inline]
[   26.865439]  __x64_sys_write+0x1bf/0x3e0 fs/read_write.c:607
[   26.869605]  ? ksys_write+0x360/0x360 fs/read_write.c:568
[   26.873413]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   26.877309]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   26.882503] RIP: 0033:0x7fa6114cc370
[   26.886213] RSP: 002b:00007ffc57cd6a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   26.893931] RAX: ffffffffffffffda RBX: 0000000001080638 RCX: 00007fa6114cc370
[   26.901205] RDX: 0000000000000028 RSI: 0000000001080638 RDI: 0000000000000002
[   26.908483] RBP: 00000000010805f0 R08: 0000000000000001 R09: 0000000000000002
[   26.915763] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000010805f0
[   26.923037] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b1fec4c
[   26.930823] Dumping ftrace buffer:
[   26.934353]    (ftrace buffer empty)
[   26.938041] Kernel Offset: disabled
[   26.941642] Rebooting in 86400 seconds..