uvm_fault(0xffffffff8277aa10, 0xffffffff82683368, 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(0xffffffff8277aa10, 0xffffffff82683368, 0, 2) -> e m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800023f11b80, count: 0 ddb{0}> trace m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800023f11ba8,fffffd8069287c00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800023f11ca8,0,ffff800000b9aa98,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b84000,ffff800023f11f78) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800023f11f78,ffff800023f11f84,29,0,ffff800000b84000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b84000,fffffd8069287c00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800023f12268,ffff800021cff000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800023f120c0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e89d1a8,ffff800023f12268,11,fffffd807f7bf9c0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806fc0cd10,ffff800023f12268,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800023faf8d8,f0,ffff800023f12268,0,ffff800023f12350) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800023faf8d8,ffff800023f12300,ffff800023f12350) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800023f123d0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f123d0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf25398f45d0, count: -14 ddb{0}> show registers rdi 0 rsi 0x8a497 acpi_pdirpa+0x762ff rbp 0xffff800023f118e0 rbx 0xffffffffffffa324 rdx 0x8a496 acpi_pdirpa+0x762fe rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0xf6147e231db101de r12 0xfffffd8069287e00 r13 0x108 r14 0x30 r15 0xffff800023f11ae0 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023f11820 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=270513 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800023fae028,0xffffffff82888178 process=0xffff800023f957a8 user=0xffff800023f0d000, vmspace=0xfffffd806778bb90 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54740 409006 75730 0 7 0 syz-executor.0 *54740 270513 75730 0 7 0x4000000 syz-executor.0 75730 100247 71762 0 3 0x82 nanosleep syz-executor.0 5546 52627 1 0 3 0x100083 ttyopn getty 2291 277812 0 0 3 0x14280 nfsidl nfsio 66219 180483 0 0 3 0x14280 nfsidl nfsio 4037 159077 0 0 3 0x14280 nfsidl nfsio 99305 92844 0 0 3 0x14280 nfsidl nfsio 93578 112748 0 0 3 0x14280 nfsidl nfsio 91195 326494 0 0 3 0x14280 nfsidl nfsio 82237 460955 0 0 3 0x14280 nfsidl nfsio 68681 510828 0 0 3 0x14280 nfsidl nfsio 34958 144202 0 0 3 0x14280 nfsidl nfsio 77959 432646 0 0 3 0x14280 nfsidl nfsio 8063 191732 0 0 3 0x14280 nfsidl nfsio 46720 107123 0 0 3 0x14280 nfsidl nfsio 54898 49656 0 0 3 0x14280 nfsidl nfsio 15388 98675 0 0 3 0x14280 nfsidl nfsio 6895 386695 0 0 3 0x14280 nfsidl nfsio 66920 492280 0 0 3 0x14280 nfsidl nfsio 40263 121677 0 0 3 0x14280 nfsidl nfsio 3226 333359 0 0 3 0x14280 nfsidl nfsio 94075 287199 0 0 3 0x14280 nfsidl nfsio 53562 89151 0 0 3 0x14280 nfsidl nfsio 40406 89577 0 0 3 0x14200 acct acct 58618 150505 0 0 3 0x14200 bored sosplice 8310 364121 71762 0 3 0x82 piperd syz-executor.1 71762 304606 68730 0 2 0x2 syz-fuzzer 71762 475842 68730 0 3 0x4000082 nanosleep syz-fuzzer 71762 322821 68730 0 3 0x4000082 kqread syz-fuzzer 71762 194528 68730 0 3 0x4000082 thrsleep syz-fuzzer 71762 94766 68730 0 3 0x4000082 thrsleep syz-fuzzer 71762 235463 68730 0 3 0x4000082 thrsleep syz-fuzzer 71762 469419 68730 0 3 0x4000082 thrsleep syz-fuzzer 71762 277018 68730 0 3 0x4000082 thrsleep syz-fuzzer 68730 191195 43526 0 3 0x10008a pause ksh 43526 8875 83414 0 3 0x92 select sshd 83414 9420 1 0 3 0x80 select sshd 56346 508918 26623 74 3 0x100092 bpf pflogd 26623 141583 1 0 3 0x80 netio pflogd 17402 508242 48099 73 3 0x100090 kqread syslogd 48099 418895 1 0 3 0x100082 netio syslogd 19 17727 1 77 3 0x100090 poll dhclient 38323 325492 1 0 3 0x80 poll dhclient 42306 64309 0 0 3 0x14200 bored smr 61569 422998 0 0 2 0x14200 zerothread 97212 523981 0 0 3 0x14200 aiodoned aiodoned 94032 504246 0 0 3 0x14200 syncer update 67587 162415 0 0 3 0x14200 cleaner cleaner 38413 199256 0 0 3 0x14200 reaper reaper 27529 67097 0 0 3 0x14200 pgdaemon pagedaemon 25315 322338 0 0 3 0x14200 bored crynlk 34046 428920 0 0 3 0x14200 bored crypto 87108 87373 0 0 3 0x40014200 acpi0 acpi0 38014 437710 0 0 3 0x40014200 idle1 92083 402122 0 0 3 0x14200 bored softnet 71400 465433 0 0 3 0x14200 bored systqmp 86887 15519 0 0 3 0x14200 bored systq 63767 57124 0 0 3 0x40014200 bored softclock 71227 77781 0 0 3 0x40014200 idle0 1 288590 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 54740 (syz-executor.0) thread 0xffff800023faf8d8 (270513) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9546 6439K 7197K 78643K 14635 0 pcb 13 8K 8K 78643K 233 0 rtable 127 15K 16K 78643K 2434 0 ifaddr 96 18K 19K 78643K 494 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 105 0 ioctlops 0 0K 4K 78643K 4080 0 iov 0 0K 16K 78643K 180 0 mount 1 1K 1K 78643K 1 0 vnodes 1209 76K 77K 78643K 2669 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 38 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 612 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 3557 0 sigio 1 0K 0K 78643K 44 0 proc 62 63K 95K 78643K 667 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1162 0 in_multi 26 1K 2K 78643K 1376 0 ether_multi 1 0K 0K 78643K 26 0 mrt 0 0K 0K 78643K 12 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 547 0 pfkey data 0 0K 1K 78643K 4 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 213 160K 162K 78643K 10676 0 UVM aobj 130 8K 8K 78643K 143 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 407 0 NDP 16 0K 0K 78643K 233 0 temp 161 3993K 4057K 78643K 19223 0 kqueue 3 4K 12K 78643K 61 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 26 0 20 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 111 0 109 1 0 1 1 0 8 0 rtentry 112 828 0 800 2 0 2 2 0 8 0 unpcb 120 872 0 862 1 0 1 1 0 8 0 syncache 272 10 0 10 6 5 1 1 0 8 1 tcpqe 32 124 0 124 1 1 0 1 0 8 0 tcpcb 592 1667 0 1653 16 14 2 3 0 8 0 inpcb 296 6744 0 6737 11 9 2 3 0 8 1 rttmr 72 7 0 7 3 3 0 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 199 0 195 1 0 1 1 0 8 0 pkpcb 40 18 0 18 6 6 0 1 0 8 0 ppxss 1136 5 0 5 3 3 0 1 0 8 0 pfstscr 40 8 0 8 2 2 0 1 0 8 0 pffrag 232 17 0 16 6 5 1 1 0 482 0 pffrnode 88 17 0 16 6 5 1 1 0 8 0 pffrent 40 210 0 209 6 5 1 1 0 8 0 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 172 0 150 8 6 2 2 0 8 0 pfstitem 24 51 0 49 1 0 1 1 0 8 0 pfstkey 112 55 0 53 1 0 1 1 0 8 0 pfstate 328 50 0 48 3 2 1 3 0 8 0 pfsrctr 152 19 0 19 1 1 0 1 0 8 0 pfrule 1360 188 0 48 13 1 12 12 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4792 0 4647 22 11 11 15 0 8 0 art_table 32 4793 0 4647 2 0 2 2 0 8 0 art_node 16 824 0 802 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 30 1 0 1 1 0 8 0 semapl 112 610 0 600 1 0 1 1 0 8 0 shmpl 112 140 0 13 4 0 4 4 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 5589 0 4198 88 0 88 88 0 8 0 ffsino 272 5589 0 4198 94 0 94 94 0 8 0 nchpl 144 10267 0 8688 60 0 60 60 0 8 0 uvmvnodes 72 6758 0 0 123 0 123 123 0 8 0 vnodes 208 6758 0 0 356 0 356 356 0 8 0 namei 1024 30322 0 30322 4 3 1 1 0 8 1 percpumem 16 63 0 31 1 0 1 1 0 8 0 vcpupl 1984 14 0 0 2 0 2 2 0 8 0 vmpool 560 22 0 8 3 1 2 2 0 8 1 pfiaddrpl 120 90 0 43 6 4 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 200 31531 0 31531 14 13 1 7 0 8 1 plimitpl 152 161 0 153 1 0 1 1 0 8 0 sigapl 424 3789 0 3736 8 2 6 7 0 8 0 futexpl 56 53356 0 53356 3 2 1 1 0 8 1 knotepl 112 156 0 136 1 0 1 1 0 8 0 kqueuepl 152 760 0 758 1 0 1 1 0 8 0 pipepl 304 437 0 426 16 14 2 2 0 8 1 fdescpl 496 3752 0 3736 3 0 3 3 0 8 0 filepl 152 22349 0 22247 7 2 5 6 0 8 1 lockfpl 104 637 0 636 1 0 1 1 0 8 0 lockfspl 48 225 0 224 1 0 1 1 0 8 0 sessionpl 120 21 0 10 1 0 1 1 0 8 0 pgrppl 48 72 0 61 1 0 1 1 0 8 0 ucredpl 96 1996 0 1987 1 0 1 1 0 8 0 zombiepl 144 3736 0 3736 3 2 1 1 0 8 1 processpl 1008 3789 0 3736 8 1 7 7 0 8 0 procpl 632 9972 0 9911 6 0 6 6 0 8 0 sosppl 144 17 0 17 7 7 0 1 0 8 0 sockpl 400 7773 0 7754 19 16 3 5 0 8 1 mcl64k 65536 257 0 0 33 26 7 33 0 8 1 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 12 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 1 2 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 207 0 0 21 4 17 21 0 8 0 mtagpl 96 55 0 0 2 0 2 2 0 8 0 mbufpl 256 709 0 0 30 0 30 30 0 8 0 bufpl 280 8330 0 2072 448 0 448 448 0 8 0 anonpl 16 337933 0 320016 183 107 76 92 0 124 0 amapchunkpl 152 18220 0 17903 50 37 13 18 0 158 0 amappl16 192 13679 0 12819 114 70 44 55 0 8 1 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 24 0 20 1 0 1 1 0 8 0 amappl13 168 40 0 39 1 0 1 1 0 8 0 amappl12 160 2454 0 2449 1 0 1 1 0 8 0 amappl11 152 66 0 49 1 0 1 1 0 8 0 amappl10 144 1056 0 1048 1 0 1 1 0 8 0 amappl9 136 365 0 365 1 1 0 1 0 8 0 amappl8 128 298 0 214 3 0 3 3 0 8 0 amappl7 120 1328 0 1317 1 0 1 1 0 8 0 amappl6 112 136 0 117 1 0 1 1 0 8 0 amappl5 104 3849 0 3832 1 0 1 1 0 8 0 amappl4 96 352 0 319 1 0 1 1 0 8 0 amappl3 88 192 0 185 1 0 1 1 0 8 0 amappl2 80 27941 0 27867 3 1 2 3 0 8 0 amappl1 72 116909 0 116446 24 14 10 19 0 8 0 amappl 80 10268 0 10171 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 64 142 0 13 3 0 3 3 0 8 0 uaddrrnd 24 3774 0 3744 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3774 0 3744 1 0 1 1 0 8 0 vmmpekpl 168 25313 0 25262 3 0 3 3 0 8 0 vmmpepl 168 477155 0 474990 230 134 96 131 0 357 1 vmsppl 368 3773 0 3744 3 0 3 3 0 8 0 pdppl 4096 7555 0 7502 9 2 7 7 0 8 0 pvpl 32 1025086 0 1003811 393 212 181 215 0 265 3 pmappl 232 3773 0 3744 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 354 0 72 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f11900,138,0,ffff800023f11ac4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800023f11ba8,fffffd8069287c00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800023f11ca8,0,ffff800000b9aa98,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b84000,ffff800023f11f78) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800023f11f78,ffff800023f11f84,29,0,ffff800000b84000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b84000,fffffd8069287c00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800023f12268,ffff800021cff000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800023f120c0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e89d1a8,ffff800023f12268,11,fffffd807f7bf9c0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806fc0cd10,ffff800023f12268,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800023faf8d8,f0,ffff800023f12268,0,ffff800023f12350) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800023faf8d8,ffff800023f12300,ffff800023f12350) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800023f123d0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f123d0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf25398f45d0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d80ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffd5aa0, count: -3