uvm_fault(0xffffffff8277aa10, 0xffffffff826780f0, 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, 0xffffffff826780f0, 0, 2) -> e m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff8000225061d0, count: 0 ddb{0}> trace m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff8000000448c0,ffff8000225061f8,fffffd8064542a00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff8000225062f8,0,ffff800000ac0fe8,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b35000,ffff8000225065c8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000225065c8,ffff8000225065d4,29,0,ffff800000b35000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b35000,fffffd8064542a00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000225068b8,ffff800023109000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800022506710) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed61758,ffff8000225068b8,11,fffffd807f7bf7e0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806d982568,ffff8000225068b8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800021fac030,f0,ffff8000225068b8,0,ffff8000225069a0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800021fac030,ffff800022506950,ffff8000225069a0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800022506a20) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022506a20) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb6d41779c0, count: -14 ddb{0}> show registers rdi 0 rsi 0x7555f acpi_pdirpa+0x613c7 rbp 0xffff800022505f30 rbx 0xffffffffffff8cd5 rdx 0x7555e acpi_pdirpa+0x613c6 rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0x3cb3a29ccef024d3 r12 0xfffffd8065ba0500 r13 0x228 r14 0x30 r15 0xffff800022506130 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022505e70 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=59947 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800021fac2a8,0xffffffff82888178 process=0xffff800021f923f8 user=0xffff800022501000, vmspace=0xfffffd806e8d48a8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64063 444737 19395 0 7 0 syz-executor.1 *64063 59947 19395 0 7 0x4000000 syz-executor.1 19395 17959 54026 0 3 0x82 nanosleep syz-executor.1 71947 193547 1 0 3 0x100083 ttyin getty 76554 359794 0 0 3 0x14280 nfsidl nfsio 50033 402622 0 0 3 0x14280 nfsidl nfsio 20701 120780 0 0 3 0x14280 nfsidl nfsio 60282 82139 0 0 3 0x14280 nfsidl nfsio 54303 154547 0 0 3 0x14280 nfsidl nfsio 7326 172764 0 0 3 0x14280 nfsidl nfsio 89165 148971 0 0 3 0x14280 nfsidl nfsio 66006 25625 0 0 3 0x14280 nfsidl nfsio 48489 381228 0 0 3 0x14280 nfsidl nfsio 11618 369739 0 0 3 0x14280 nfsidl nfsio 91750 485501 0 0 3 0x14280 nfsidl nfsio 52578 281699 0 0 3 0x14280 nfsidl nfsio 79617 212637 0 0 3 0x14280 nfsidl nfsio 2822 354079 0 0 3 0x14280 nfsidl nfsio 91200 246087 0 0 3 0x14280 nfsidl nfsio 89676 397441 0 0 3 0x14280 nfsidl nfsio 41227 212064 0 0 3 0x14280 nfsidl nfsio 56425 28867 0 0 3 0x14280 nfsidl nfsio 91242 1764 0 0 3 0x14280 nfsidl nfsio 736 300229 0 0 3 0x14280 nfsidl nfsio 31735 487334 0 0 3 0x14200 acct acct 12104 154877 0 0 3 0x14200 bored sosplice 69715 253357 54026 0 3 0x82 piperd syz-executor.0 54026 501876 77513 0 3 0x82 thrsleep syz-fuzzer 54026 103651 77513 0 3 0x4000082 nanosleep syz-fuzzer 54026 38015 77513 0 3 0x4000082 thrsleep syz-fuzzer 54026 447710 77513 0 2 0x4000002 syz-fuzzer 54026 87898 77513 0 3 0x4000082 kqread syz-fuzzer 54026 69041 77513 0 3 0x4000082 thrsleep syz-fuzzer 54026 435536 77513 0 3 0x4000082 thrsleep syz-fuzzer 54026 134363 77513 0 3 0x4000082 thrsleep syz-fuzzer 77513 31637 68106 0 3 0x10008a pause ksh 68106 24090 49825 0 3 0x92 select sshd 49825 402298 1 0 3 0x80 select sshd 10561 226885 20353 74 3 0x100092 bpf pflogd 20353 352405 1 0 3 0x80 netio pflogd 57047 235204 9407 73 3 0x100090 kqread syslogd 9407 173771 1 0 3 0x100082 netio syslogd 1168 480304 1 77 3 0x100090 poll dhclient 28777 20788 1 0 3 0x80 poll dhclient 96405 129734 0 0 3 0x14200 bored smr 22369 197064 0 0 2 0x14200 zerothread 32493 476990 0 0 3 0x14200 aiodoned aiodoned 11881 129376 0 0 3 0x14200 syncer update 25440 215535 0 0 3 0x14200 cleaner cleaner 62092 175894 0 0 3 0x14200 reaper reaper 76615 61925 0 0 3 0x14200 pgdaemon pagedaemon 63989 36849 0 0 3 0x14200 bored crynlk 75437 19296 0 0 3 0x14200 bored crypto 21325 373351 0 0 3 0x40014200 acpi0 acpi0 34130 186769 0 0 3 0x40014200 idle1 82266 428033 0 0 3 0x14200 bored softnet 84507 93921 0 0 3 0x14200 bored systqmp 2010 322883 0 0 3 0x14200 bored systq 52390 362311 0 0 3 0x40014200 bored softclock 34356 426679 0 0 3 0x40014200 idle0 1 383123 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 64063 (syz-executor.1) thread 0xffff800021fac030 (59947) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9545 6426K 6940K 78643K 12774 0 pcb 13 8K 8K 78643K 229 0 rtable 121 13K 13K 78643K 1062 0 ifaddr 103 20K 20K 78643K 375 0 sysctl 3 1K 1K 78643K 3 0 counters 43 33K 34K 78643K 125 0 ioctlops 0 0K 4K 78643K 1805 0 iov 0 0K 32K 78643K 193 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1987 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 33 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 434 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 2028 0 sigio 0 0K 0K 78643K 11 0 proc 61 63K 95K 78643K 713 0 subproc 32 2K 2K 78643K 107 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 148 0 in_multi 26 1K 2K 78643K 270 0 ether_multi 1 0K 0K 78643K 33 0 mrt 1 0K 0K 78643K 17 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 2K 78643K 551 0 pfkey data 0 0K 0K 78643K 2 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 214 160K 164K 78643K 6969 0 UVM aobj 51 8K 8K 78643K 56 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 174 0 NDP 16 0K 0K 78643K 86 0 temp 158 3981K 4054K 78643K 38785 0 kqueue 3 4K 12K 78643K 51 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 20 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 76 0 74 1 0 1 1 0 8 0 rtentry 112 187 0 157 2 0 2 2 0 8 0 unpcb 120 867 0 857 1 0 1 1 0 8 0 syncache 272 15 0 15 6 6 0 1 0 8 0 tcpqe 32 64 0 64 1 1 0 1 0 8 0 tcpcb 592 528 0 524 5 4 1 2 0 8 0 inpcb 296 1605 0 1598 14 12 2 2 0 8 1 rttmr 72 4 0 4 4 4 0 1 0 8 0 nd6 48 39 0 35 1 0 1 1 0 8 0 pkpcb 40 16 0 16 5 5 0 1 0 8 0 ppxss 1136 2 0 2 1 1 0 1 0 8 0 pfstscr 40 6 0 6 2 2 0 1 0 8 0 pffrag 232 24 0 24 9 9 0 1 0 482 0 pffrnode 88 24 0 24 9 9 0 1 0 8 0 pffrent 40 405 0 405 10 10 0 1 0 8 0 pfosfp 40 847 0 846 6 5 1 5 0 8 0 pfosfpen 112 1430 0 1428 22 21 1 21 0 8 0 pfrke_plain 160 12 0 6 1 0 1 1 0 8 0 pfrktable 1344 99 0 81 3 1 2 2 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 25 0 21 1 0 1 1 0 8 0 pfstkey 112 31 0 27 1 0 1 1 0 8 0 pfstate 328 25 0 22 2 1 1 2 0 8 0 pfsrctr 152 78 0 78 1 1 0 1 0 8 0 pfrule 1360 73 0 51 4 2 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 931 0 784 14 2 12 13 0 8 0 art_table 32 932 0 784 2 0 2 2 0 8 0 art_node 16 186 0 161 1 0 1 1 0 8 0 sysvmsgpl 40 77 0 38 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 430 0 420 1 0 1 1 0 8 0 shmpl 112 53 0 5 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3935 0 2536 90 2 88 89 0 8 0 ffsino 272 3935 0 2536 94 0 94 94 0 8 0 nchpl 144 8267 0 6673 60 0 60 60 0 8 0 rtmask 32 8 0 6 1 0 1 1 0 8 0 uvmvnodes 72 4536 0 0 83 0 83 83 0 8 0 vnodes 208 4536 0 0 239 0 239 239 0 8 0 namei 1024 21982 0 21982 7 6 1 1 0 8 1 percpumem 16 73 0 41 1 0 1 1 0 8 0 vcpupl 1984 16 0 0 2 0 2 2 0 8 0 vmpool 560 28 0 12 2 0 2 2 0 8 0 pfiaddrpl 120 36 0 26 3 2 1 1 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 200 21904 0 21904 16 14 2 7 0 8 2 plimitpl 152 152 0 144 1 0 1 1 0 8 0 sigapl 424 2254 0 2201 9 3 6 7 0 8 0 futexpl 56 37981 0 37981 6 5 1 1 0 8 1 knotepl 112 178 0 158 1 0 1 1 0 8 0 kqueuepl 152 198 0 193 1 0 1 1 0 8 0 pipepl 304 322 0 311 12 10 2 3 0 8 1 fdescpl 496 2217 0 2201 3 0 3 3 0 8 0 filepl 152 12688 0 12585 9 4 5 7 0 8 1 lockfpl 104 397 0 396 1 0 1 1 0 8 0 lockfspl 48 128 0 127 1 0 1 1 0 8 0 sessionpl 120 23 0 12 1 0 1 1 0 8 0 pgrppl 48 47 0 36 1 0 1 1 0 8 0 ucredpl 96 1179 0 1170 1 0 1 1 0 8 0 zombiepl 144 2201 0 2201 3 2 1 1 0 8 1 processpl 1008 2254 0 2201 8 1 7 7 0 8 0 procpl 632 6200 0 6139 7 1 6 6 0 8 0 sosppl 144 16 0 16 8 8 0 1 0 8 0 sockpl 400 2568 0 2549 13 10 3 6 0 8 1 mcl64k 65536 13 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 20 0 0 3 1 2 3 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 199 0 0 21 1 20 21 0 8 0 mtagpl 96 57 0 0 1 0 1 1 0 8 0 mbufpl 256 558 0 0 22 0 22 22 0 8 0 bufpl 280 8064 0 1808 447 0 447 447 0 8 0 anonpl 16 244156 0 225572 150 72 78 92 0 124 0 amapchunkpl 152 12582 0 12241 50 28 22 27 0 158 8 amappl16 192 9536 0 8660 108 62 46 55 0 8 0 amappl15 184 3 0 2 1 0 1 1 0 8 0 amappl14 176 28 0 22 1 0 1 1 0 8 0 amappl13 168 59 0 57 1 0 1 1 0 8 0 amappl12 160 214 0 207 1 0 1 1 0 8 0 amappl11 152 620 0 602 1 0 1 1 0 8 0 amappl10 144 869 0 864 1 0 1 1 0 8 0 amappl9 136 365 0 365 2 2 0 1 0 8 0 amappl8 128 278 0 200 3 0 3 3 0 8 0 amappl7 120 1168 0 1157 1 0 1 1 0 8 0 amappl6 112 699 0 682 1 0 1 1 0 8 0 amappl5 104 2312 0 2297 1 0 1 1 0 8 0 amappl4 96 349 0 321 1 0 1 1 0 8 0 amappl3 88 162 0 155 1 0 1 1 0 8 0 amappl2 80 14970 0 14897 3 1 2 3 0 8 0 amappl1 72 77997 0 77534 22 10 12 19 0 8 0 amappl 80 6543 0 6441 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 55 0 5 1 0 1 1 0 8 0 uaddrrnd 24 2245 0 2213 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2245 0 2213 1 0 1 1 0 8 0 vmmpekpl 168 16517 0 16469 3 0 3 3 0 8 0 vmmpepl 168 292156 0 289942 229 130 99 129 0 357 0 vmsppl 368 2244 0 2213 5 2 3 3 0 8 0 pdppl 4096 4497 0 4442 11 4 7 8 0 8 0 pvpl 32 703623 0 682226 314 123 191 214 0 265 15 pmappl 232 2244 0 2213 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 301 0 38 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800022505f50,258,0,ffff800022506114,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff8000000448c0,ffff8000225061f8,fffffd8064542a00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff8000225062f8,0,ffff800000ac0fe8,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b35000,ffff8000225065c8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000225065c8,ffff8000225065d4,29,0,ffff800000b35000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b35000,fffffd8064542a00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000225068b8,ffff800023109000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800022506710) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed61758,ffff8000225068b8,11,fffffd807f7bf7e0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806d982568,ffff8000225068b8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800021fac030,f0,ffff8000225068b8,0,ffff8000225069a0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800021fac030,ffff800022506950,ffff8000225069a0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800022506a20) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022506a20) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb6d41779c0, 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x55 sys/dev/kcov.c:118 pvclock_get_timecount(ffffffff826b7168) at pvclock_get_timecount+0xdb sys/dev/pv/pvclock.c:235 nanotime(ffff8000216f0348) at nanotime+0x6e tc_delta sys/kern/kern_tc.c:131 [inline] nanotime(ffff8000216f0348) at nanotime+0x6e bintime sys/kern/kern_tc.c:266 [inline] nanotime(ffff8000216f0348) at nanotime+0x6e sys/kern/kern_tc.c:277 clock_gettime(ffff800021fac2a8,0,ffff8000216f0348) at clock_gettime+0x9d sys/kern/kern_time.c:116 sys_clock_gettime(ffff800021fac2a8,ffff8000216f03b0,ffff8000216f0400) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165 syscall(ffff8000216f0480) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000216f0480) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffaec0, count: -10