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For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/42:01:0a:80:0a:2d
Sending[ 26.567955] ==================================================================
on LPF/eth0/4[ 26.576476] BUG: KMSAN: uninit-value in receive_mergeable drivers/net/virtio_net.c:817 [inline]
on LPF/eth0/4[ 26.576476] BUG: KMSAN: uninit-value in receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
2:01:0a:80:0a:2d[ 26.584078] CPU: 0 PID: 2164 Comm: startpar Not tainted 4.17.0+ #2
[ 26.591794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.601147] Call Trace:
[ 26.603899]
[ 26.606046] __dump_stack lib/dump_stack.c:77 [inline]
[ 26.606046] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[ 26.609657] kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
[ 26.613436] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[ 26.617478] receive_mergeable drivers/net/virtio_net.c:817 [inline]
[ 26.617478] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[ 26.621380] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.621380] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.625302] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 26.629197] napi_poll net/core/dev.c:5735 [inline]
[ 26.629197] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.633181] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 26.637249] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.641060] invoke_softirq kernel/softirq.c:365 [inline]
[ 26.641060] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 26.644499] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 26.647930] do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[ 26.651189] common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[ 26.654994]
[ 26.657215] RIP: 0010:klist_next+0x474/0x5e0 lib/klist.c:395
[ 26.661597] RSP: 0018:ffff8801cbb7f458 EFLAGS: 00000292 ORIG_RAX: ffffffffffffffd9
[ 26.669293] RAX: ffff8801cb41f528 RBX: ffff8801cbb7f528 RCX: ffff880000000000
[ 26.676565] RDX: ffff8801cbb8f528 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000
[ 26.683839] RBP: ffff8801cbb7f4f8 R08: 0000000001080001 R09: 0000000000000002
[ 26.691112] R10: 0000000000000000 R11: ffffffff846d72d0 R12: ffff8801d9389aa0
[ 26.698449] R13: ffff8801d5fa0a80 R14: ffff8801d5fa0680 R15: ffff8801ce1fe098
[ 26.705737] ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[ 26.709386] ? klist_next+0x474/0x5e0 lib/klist.c:395
[ 26.713189] class_dev_iter_next drivers/base/class.c:304 [inline]
[ 26.713189] class_find_device+0x191/0x490 drivers/base/class.c:408
[ 26.717409] ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[ 26.721023] tty_get_device drivers/tty/tty_io.c:2797 [inline]
[ 26.721023] alloc_tty_struct+0x902/0xc50 drivers/tty/tty_io.c:2844
[ 26.725157] pty_common_install drivers/tty/pty.c:395 [inline]
[ 26.725157] pty_unix98_install+0x2a8/0x970 drivers/tty/pty.c:727
[ 26.729455] ? ptm_unix98_lookup+0x40/0x40 drivers/tty/pty.c:699
[ 26.733668] tty_driver_install_tty drivers/tty/tty_io.c:1224 [inline]
[ 26.733668] tty_init_dev+0x1b5/0x1020 drivers/tty/tty_io.c:1324
[ 26.737534] ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[ 26.741062] ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[ 26.745120] chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[ 26.748838] ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[ 26.752561] do_dentry_open+0xccc/0x1440 fs/open.c:794
[ 26.756637] vfs_open+0x1b6/0x2f0 fs/open.c:908
[ 26.760102] do_last fs/namei.c:3365 [inline]
[ 26.760102] path_openat+0x4771/0x6640 fs/namei.c:3506
[ 26.763999] ? tty_ldisc_deref+0x25/0x70 drivers/tty/tty_ldisc.c:315
[ 26.768070] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 26.772749] ? __alloc_fd+0x428/0xb20 fs/file.c:504
[ 26.776555] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.781415] do_filp_open+0x261/0x640 fs/namei.c:3540
[ 26.785232] do_sys_open+0x624/0x960 fs/open.c:1101
[ 26.788949] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 26.793802] __do_sys_open fs/open.c:1119 [inline]
[ 26.793802] __se_sys_open fs/open.c:1114 [inline]
[ 26.793802] __x64_sys_open+0xf2/0x130 fs/open.c:1114
[ 26.797700] ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[ 26.801596] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.805504] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.810697] RIP: 0033:0x7fa428098120
[ 26.814409] RSP: 002b:00007ffe14bc18d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 26.822125] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa428098120
[ 26.829403] RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000406c1d
[ 26.836679] RBP: 00000000023b55f0 R08: 0000000000000001 R09: 000000000000c478
[ 26.843958] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000023b55f0
[ 26.851236] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b1fec43
[ 26.858504]
[ 26.860108] Uninit was stored to memory at:
[ 26.864412] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.864412] kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
[ 26.864412] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
[ 26.869493] __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
[ 26.873706] receive_mergeable drivers/net/virtio_net.c:690 [inline]
[ 26.873706] receive_buf+0x2dbb/0x6ae0 drivers/net/virtio_net.c:917
[ 26.877570] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.877570] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.881439] napi_poll net/core/dev.c:5735 [inline]
[ 26.881439] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.885393] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.889178] Uninit was created at:
[ 26.892699] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.892699] kmsan_alloc_meta_for_pages+0x161/0x3a0 mm/kmsan/kmsan.c:815
[ 26.897691] kmsan_alloc_page+0x82/0xe0 mm/kmsan/kmsan.c:885
[ 26.901647] __alloc_pages_nodemask+0xf7b/0x5cc0 mm/page_alloc.c:4402
[ 26.906378] alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093
[ 26.910762] alloc_pages include/linux/gfp.h:494 [inline]
[ 26.910762] skb_page_frag_refill+0x3ba/0x5e0 net/core/sock.c:2211
[ 26.915234] add_recvbuf_mergeable drivers/net/virtio_net.c:1067 [inline]
[ 26.915234] try_fill_recv+0x3d5/0x2580 drivers/net/virtio_net.c:1108
[ 26.919189] virtnet_open+0x188/0x600 drivers/net/virtio_net.c:1311
[ 26.922966] __dev_open+0x613/0x840 net/core/dev.c:1392
[ 26.927269] __dev_change_flags+0x401/0xb60 net/core/dev.c:6955
[ 26.931581] dev_change_flags+0xca/0x230 net/core/dev.c:7024
[ 26.935651] do_setlink+0x165b/0x6010 net/core/rtnetlink.c:2362
[ 26.939454] rtnl_newlink+0x2b33/0x37a0 net/core/rtnetlink.c:2970
[ 26.943439] rtnetlink_rcv_msg+0xa44/0x1570 net/core/rtnetlink.c:4646
[ 26.947762] netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
[ 26.951824] rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4664
[ 26.955541] netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
[ 26.955541] netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
[ 26.959754] netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
[ 26.963967] sock_sendmsg_nosec net/socket.c:629 [inline]
[ 26.963967] sock_sendmsg net/socket.c:639 [inline]
[ 26.963967] ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
[ 26.968004] __sys_sendmsg net/socket.c:2155 [inline]
[ 26.968004] __do_sys_sendmsg net/socket.c:2164 [inline]
[ 26.968004] __se_sys_sendmsg net/socket.c:2162 [inline]
[ 26.968004] __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
[ 26.972225] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.976092] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.981251] ==================================================================
[ 26.988583] Disabling lock debugging due to kernel taint
[ 26.994007] Kernel panic - not syncing: panic_on_warn set ...
[ 26.994007]
[ 27.001357] CPU: 0 PID: 2164 Comm: startpar Tainted: G B 4.17.0+ #2
[ 27.009040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 27.018370] Call Trace:
[ 27.020927]
[ 27.023062] __dump_stack lib/dump_stack.c:77 [inline]
[ 27.023062] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[ 27.026675] panic+0x3d0/0x990 kernel/panic.c:184
[ 27.029864] kmsan_report+0x29e/0x2a0 mm/kmsan/kmsan.c:1136
[ 27.033645] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[ 27.037682] receive_mergeable drivers/net/virtio_net.c:817 [inline]
[ 27.037682] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[ 27.041551] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 27.041551] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 27.045418] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 27.049296] napi_poll net/core/dev.c:5735 [inline]
[ 27.049296] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 27.053252] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 27.057301] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 27.061080] invoke_softirq kernel/softirq.c:365 [inline]
[ 27.061080] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 27.064511] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 27.067944] do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[ 27.071208] common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[ 27.074982]
[ 27.077199] RIP: 0010:klist_next+0x474/0x5e0 lib/klist.c:395
[ 27.081583] RSP: 0018:ffff8801cbb7f458 EFLAGS: 00000292 ORIG_RAX: ffffffffffffffd9
[ 27.089270] RAX: ffff8801cb41f528 RBX: ffff8801cbb7f528 RCX: ffff880000000000
[ 27.096519] RDX: ffff8801cbb8f528 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000
[ 27.103767] RBP: ffff8801cbb7f4f8 R08: 0000000001080001 R09: 0000000000000002
[ 27.111029] R10: 0000000000000000 R11: ffffffff846d72d0 R12: ffff8801d9389aa0
[ 27.118286] R13: ffff8801d5fa0a80 R14: ffff8801d5fa0680 R15: ffff8801ce1fe098
[ 27.125541] ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[ 27.129161] ? klist_next+0x474/0x5e0 lib/klist.c:395
[ 27.132942] class_dev_iter_next drivers/base/class.c:304 [inline]
[ 27.132942] class_find_device+0x191/0x490 drivers/base/class.c:408
[ 27.137151] ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[ 27.140764] tty_get_device drivers/tty/tty_io.c:2797 [inline]
[ 27.140764] alloc_tty_struct+0x902/0xc50 drivers/tty/tty_io.c:2844
[ 27.144890] pty_common_install drivers/tty/pty.c:395 [inline]
[ 27.144890] pty_unix98_install+0x2a8/0x970 drivers/tty/pty.c:727
[ 27.149188] ? ptm_unix98_lookup+0x40/0x40 drivers/tty/pty.c:699
[ 27.153399] tty_driver_install_tty drivers/tty/tty_io.c:1224 [inline]
[ 27.153399] tty_init_dev+0x1b5/0x1020 drivers/tty/tty_io.c:1324
[ 27.157267] ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[ 27.160786] ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[ 27.164825] chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[ 27.168516] ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[ 27.172216] do_dentry_open+0xccc/0x1440 fs/open.c:794
[ 27.176263] vfs_open+0x1b6/0x2f0 fs/open.c:908
[ 27.179697] do_last fs/namei.c:3365 [inline]
[ 27.179697] path_openat+0x4771/0x6640 fs/namei.c:3506
[ 27.183567] ? tty_ldisc_deref+0x25/0x70 drivers/tty/tty_ldisc.c:315
[ 27.187605] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 27.192259] ? __alloc_fd+0x428/0xb20 fs/file.c:504
[ 27.196042] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 27.200869] do_filp_open+0x261/0x640 fs/namei.c:3540
[ 27.204660] do_sys_open+0x624/0x960 fs/open.c:1101
[ 27.208352] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 27.213172] __do_sys_open fs/open.c:1119 [inline]
[ 27.213172] __se_sys_open fs/open.c:1114 [inline]
[ 27.213172] __x64_sys_open+0xf2/0x130 fs/open.c:1114
[ 27.217043] ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[ 27.220911] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 27.224778] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 27.229943] RIP: 0033:0x7fa428098120
[ 27.233639] RSP: 002b:00007ffe14bc18d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 27.241329] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa428098120
[ 27.248584] RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000406c1d
[ 27.255833] RBP: 00000000023b55f0 R08: 0000000000000001 R09: 000000000000c478
[ 27.263077] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000023b55f0
[ 27.270324] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b1fec43
[ 27.278077] Dumping ftrace buffer:
[ 27.281603] (ftrace buffer empty)
[ 27.285289] Kernel Offset: disabled
[ 27.288890] Rebooting in 86400 seconds..