uvm_fault(0xffffffff8283f068, 0xffffffff826a0b18, 0, 2) -> e kernel: page fault trap, code=0 Stopped at m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff8283f068, 0xffffffff826a0b18, 0, 2) -> e m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021f3ac10, count: 0 ddb{0}> trace m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044b80,ffff800021f3ac38,fffffd806fe76d00) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f3ad38,0,ffff800000b8eaa0,0,ffffffff828901f8,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b6e800,ffff800021f3b008) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f3b008,ffff800021f3b014,29,0,ffff800000b6e800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b6e800,fffffd806fe76d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f3b2f8,ffff8000228f3000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f3b150) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806fd80688,ffff800021f3b2f8,11,fffffd807f7bf8a0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806a7dc988,ffff800021f3b2f8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000230fa798,f0,ffff800021f3b2f8,0,ffff800021f3b3e0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff8000230fa798,ffff800021f3b390,ffff800021f3b3e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f3b460) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f3b460) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x838f43e7910, count: -14 ddb{0}> show registers rdi 0 rsi 0x11f28f acpi_pdirpa+0x10b0f7 rbp 0xffff800021f3a970 rbx 0xffffffffffffa742 rdx 0x11f28e acpi_pdirpa+0x10b0f6 rcx 0xffffffff826cd100 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81bfeb88 pf_translate_a+0x1a8 r10 0x1 r11 0x647789afeb784a87 r12 0xfffffd8066e79a00 r13 0x118 r14 0x30 r15 0xffff800021f3ab70 rip 0xffffffff8130dea9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f3a8b0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=301897 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000230fa2a8,0xffffffff8287d758 process=0xffff800020ec47e8 user=0xffff800021f36000, vmspace=0xfffffd806a4ee750 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20833 88167 12079 0 2 0 syz-executor.0 *20833 301897 12079 0 7 0x4000000 syz-executor.0 94605 53329 0 0 3 0x14200 acct acct 10792 491007 0 0 3 0x14280 nfsidl nfsio 87419 29243 0 0 3 0x14280 nfsidl nfsio 14619 415551 0 0 3 0x14280 nfsidl nfsio 9112 313212 0 0 3 0x14280 nfsidl nfsio 26888 308586 0 0 3 0x14280 nfsidl nfsio 3874 272637 0 0 3 0x14280 nfsidl nfsio 73459 19078 0 0 3 0x14280 nfsidl nfsio 13198 138168 0 0 3 0x14280 nfsidl nfsio 5991 44633 0 0 3 0x14280 nfsidl nfsio 95439 64348 0 0 3 0x14280 nfsidl nfsio 73621 506019 0 0 3 0x14280 nfsidl nfsio 39248 286911 0 0 3 0x14280 nfsidl nfsio 81155 167317 0 0 3 0x14280 nfsidl nfsio 8891 496533 0 0 3 0x14280 nfsidl nfsio 31583 461921 0 0 3 0x14280 nfsidl nfsio 30379 396577 0 0 3 0x14280 nfsidl nfsio 15154 68306 0 0 3 0x14280 nfsidl nfsio 42494 495335 0 0 3 0x14280 nfsidl nfsio 77507 298141 0 0 3 0x14280 nfsidl nfsio 18037 453307 0 0 3 0x14280 nfsidl nfsio 12079 262662 23165 0 3 0x82 nanosleep syz-executor.0 95690 286347 23165 0 2 0x2 syz-executor.1 78043 298489 1 0 3 0x100083 ttyopn getty 53138 411614 0 0 3 0x14200 bored sosplice 23165 485274 7511 0 3 0x82 nanosleep syz-fuzzer 23165 194561 7511 0 3 0x4000082 nanosleep syz-fuzzer 23165 194138 7511 0 3 0x4000082 thrsleep syz-fuzzer 23165 5487 7511 0 3 0x4000082 thrsleep syz-fuzzer 23165 455899 7511 0 3 0x4000082 thrsleep syz-fuzzer 23165 439404 7511 0 3 0x4000082 thrsleep syz-fuzzer 23165 415240 7511 0 3 0x4000082 kqread syz-fuzzer 23165 348684 7511 0 3 0x4000082 thrsleep syz-fuzzer 7511 265031 25666 0 3 0x10008a pause ksh 25666 79943 65212 0 3 0x92 select sshd 65212 53765 1 0 3 0x80 select sshd 69948 203705 93853 74 3 0x100092 bpf pflogd 93853 252342 1 0 3 0x80 netio pflogd 32609 126627 80662 73 3 0x100090 kqread syslogd 80662 353047 1 0 3 0x100082 netio syslogd 90352 483601 1 77 3 0x100090 poll dhclient 79357 337528 1 0 3 0x80 poll dhclient 4419 219343 0 0 3 0x14200 bored smr 17536 81137 0 0 2 0x14200 zerothread 32489 71548 0 0 3 0x14200 aiodoned aiodoned 60882 432747 0 0 3 0x14200 syncer update 6701 221184 0 0 3 0x14200 cleaner cleaner 93562 267928 0 0 3 0x14200 reaper reaper 5277 217871 0 0 3 0x14200 pgdaemon pagedaemon 98015 346176 0 0 3 0x14200 bored crynlk 13038 85552 0 0 3 0x14200 bored crypto 48998 90011 0 0 3 0x40014200 acpi0 acpi0 20718 452555 0 0 7 0x40014200 idle1 51909 141891 0 0 3 0x14200 bored softnet 62102 25133 0 0 3 0x14200 bored systqmp 76769 233586 0 0 3 0x14200 bored systq 95594 328733 0 0 3 0x40014200 bored softclock 9141 197835 0 0 3 0x40014200 idle0 1 94591 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 20833 (syz-executor.0) thread 0xffff8000230fa798 (301897) exclusive rwlock netlock r = 0 (0xffffffff826e9d90) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 tun_dev_write+0x1f9 sys/net/if_tun.c:866 #2 spec_write+0xd4 sys/kern/spec_vnops.c:309 #3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 #4 vn_write+0x14e sys/kern/vfs_vnops.c:414 #5 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #6 sys_write+0x83 sys/kern/sys_generic.c:285 #7 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #7 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82879f90) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164 #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x1ab sys/kern/sys_generic.c:365 #3 sys_write+0x83 sys/kern/sys_generic.c:285 #4 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9574 6450K 7195K 78643K 22592 0 pcb 13 8K 8K 78643K 628 0 rtable 97 5K 7K 78643K 1554 0 ifaddr 97 18K 19K 78643K 683 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 249 0 ioctlops 0 0K 4K 78643K 2438 0 iov 0 0K 36K 78643K 527 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 5151 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 101 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1558 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 13844 0 sigio 0 0K 0K 78643K 60 0 proc 62 63K 95K 78643K 1390 0 subproc 32 2K 2K 78643K 102 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 667 0 in_multi 30 2K 2K 78643K 434 0 ether_multi 1 0K 0K 78643K 156 0 mrt 1 0K 0K 78643K 127 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 85 387K 387K 78643K 85 0 exec 0 0K 2K 78643K 741 0 pfkey data 0 0K 0K 78643K 5 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 264 215K 224K 78643K 29822 0 UVM aobj 131 4K 4K 78643K 147 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 620 0 NDP 18 0K 0K 78643K 134 0 temp 199 4043K 4108K 78643K 50193 0 kqueue 3 4K 22K 78643K 526 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 16 0 10 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 408 0 406 1 0 1 1 0 8 0 rtentry 112 162 0 128 2 0 2 2 0 8 0 unpcb 120 3964 0 3951 1 0 1 1 0 8 0 syncache 272 71 0 71 12 12 0 1 0 8 0 sackhl 24 8 0 8 5 4 1 1 0 8 1 tcpqe 32 42 0 42 6 6 0 1 0 8 0 tcpcb 592 1990 0 1984 37 36 1 8 0 8 0 inpcb 296 5157 0 5150 21 20 1 2 0 8 0 rttmr 72 47 0 47 7 7 0 1 0 8 0 nd6 48 25 0 19 1 0 1 1 0 8 0 pkpcb 40 39 0 39 5 5 0 1 0 8 0 kcovpl 48 6 0 4 1 0 1 1 0 8 0 ppxss 1128 17 0 17 5 5 0 1 0 8 0 pfstscr 40 49 0 49 5 5 0 1 0 8 0 pffrag 232 13 0 13 3 3 0 1 0 482 0 pffrnode 88 13 0 13 3 3 0 1 0 8 0 pffrent 40 245 0 245 3 3 0 1 0 8 0 pfosfp 40 878 0 878 5 5 0 5 0 8 0 pfosfpen 112 1493 0 1493 23 23 0 23 0 8 0 pfrktable 1344 106 0 103 4 3 1 1 0 8 0 pftag 88 19 0 18 2 1 1 1 0 8 0 pfstitem 24 45 0 43 1 0 1 1 0 8 0 pfstkey 112 102 0 100 1 0 1 1 0 8 0 pfstate 328 73 0 71 4 3 1 3 0 8 0 pfsrctr 152 14 0 14 1 1 0 1 0 8 0 pfrule 1360 185 0 140 5 1 4 4 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 798 0 669 15 6 9 12 0 8 0 art_table 32 799 0 669 2 0 2 2 0 8 0 art_node 16 158 0 130 1 0 1 1 0 8 0 semapl 112 1551 0 1541 1 0 1 1 0 8 0 shmpl 112 144 0 16 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 18333 0 16941 89 1 88 89 0 8 0 ffsino 272 18333 0 16941 94 0 94 94 0 8 0 nchpl 144 34932 0 33350 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 87034 0 87034 5 4 1 1 0 8 1 percpumem 16 135 0 103 1 0 1 1 0 8 0 vcpupl 1984 20 0 0 3 0 3 3 0 8 0 vmpool 560 24 0 4 2 0 2 2 0 8 0 pfiaddrpl 120 26 0 22 3 2 1 1 0 8 0 scsiplug 72 4 0 4 1 1 0 1 0 8 0 scxspl 200 107639 0 107639 12 11 1 7 0 8 1 plimitpl 152 541 0 533 1 0 1 1 0 8 0 sigapl 424 14071 0 14018 7 0 7 7 0 8 1 futexpl 56 110830 0 110830 5 4 1 1 0 8 1 knotepl 112 1151 0 1131 2 1 1 2 0 8 0 kqueuepl 152 7399 0 7353 8 6 2 3 0 8 0 pipepl 304 679 0 668 13 11 2 2 0 8 0 fdescpl 496 14033 0 14017 3 0 3 3 0 8 0 filepl 152 47768 0 47666 8 3 5 6 0 8 1 lockfpl 104 1511 0 1510 1 0 1 1 0 8 0 lockfspl 48 602 0 601 1 0 1 1 0 8 0 sessionpl 120 23 0 12 1 0 1 1 0 8 0 pgrppl 48 57 0 46 1 0 1 1 0 8 0 ucredpl 96 5204 0 5195 1 0 1 1 0 8 0 zombiepl 144 14018 0 14018 3 2 1 1 0 8 1 processpl 1008 14071 0 14018 7 0 7 7 0 8 0 procpl 632 28281 0 28220 7 1 6 6 0 8 0 srpgc 72 2 0 2 1 1 0 1 0 8 0 sosppl 144 142 0 142 9 9 0 1 0 8 0 sockpl 400 9595 0 9571 19 15 4 6 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 11 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 487 0 0 17 0 17 17 0 8 0 mtagpl 96 506 0 0 13 0 13 13 0 8 0 mbufpl 256 1286 0 0 76 0 76 76 0 8 0 bufpl 280 28296 0 22021 449 0 449 449 0 8 0 anonpl 16 999833 0 990068 168 125 43 55 0 124 0 amapchunkpl 152 57172 0 56908 60 49 11 27 0 158 0 amappl16 192 43698 0 43345 115 97 18 32 0 8 0 amappl15 184 2642 0 2641 1 0 1 1 0 8 0 amappl14 176 2655 0 2646 1 0 1 1 0 8 0 amappl13 168 68 0 67 1 0 1 1 0 8 0 amappl12 160 25 0 21 2 1 1 1 0 8 0 amappl11 152 7981 0 7964 1 0 1 1 0 8 0 amappl10 144 12 0 7 1 0 1 1 0 8 0 amappl9 136 843 0 841 1 0 1 1 0 8 0 amappl8 128 983 0 838 5 0 5 5 0 8 0 amappl7 120 330 0 320 1 0 1 1 0 8 0 amappl6 112 8058 0 8038 1 0 1 1 0 8 0 amappl5 104 10466 0 10454 1 0 1 1 0 8 0 amappl4 96 3712 0 3680 1 0 1 1 0 8 0 amappl3 88 2963 0 2957 1 0 1 1 0 8 0 amappl2 80 94765 0 94691 3 0 3 3 0 8 0 amappl1 72 335887 0 335432 24 14 10 19 0 8 0 amappl 80 28734 0 28638 3 0 3 3 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 146 0 16 3 0 3 3 0 8 0 uaddrrnd 24 14057 0 14021 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 14057 0 14021 1 0 1 1 0 8 0 vmmpekpl 168 60836 0 60792 3 0 3 3 0 8 0 vmmpepl 168 1655375 0 1653659 185 104 81 88 0 357 2 vmsppl 368 14056 0 14021 5 1 4 4 0 8 0 pdppl 4096 28121 0 28062 8 0 8 8 0 8 0 pvpl 32 4122616 0 4109550 398 289 109 140 0 265 0 pmappl 232 14056 0 14021 5 2 3 3 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 360 0 42 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f3a990,148,0,ffff800021f3ab54,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044b80,ffff800021f3ac38,fffffd806fe76d00) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f3ad38,0,ffff800000b8eaa0,0,ffffffff828901f8,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b6e800,ffff800021f3b008) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f3b008,ffff800021f3b014,29,0,ffff800000b6e800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b6e800,fffffd806fe76d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f3b2f8,ffff8000228f3000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f3b150) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806fd80688,ffff800021f3b2f8,11,fffffd807f7bf8a0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806a7dc988,ffff800021f3b2f8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff8000230fa798,f0,ffff800021f3b2f8,0,ffff800021f3b3e0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff8000230fa798,ffff800021f3b390,ffff800021f3b3e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f3b460) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f3b460) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x838f43e7910, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp