uvm_fault(0xffffffff8285a990, 0xffffffff826a10a8, 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(0xffffffff8285a990, 0xffffffff826a10a8, 0, 2) -> e m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021f00450, count: 0 ddb{0}> trace m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff80000007e300,ffff800021f00478,fffffd806960ff00) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f00578,0,ffff800000ac0548,0,ffffffff82889230,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000bb8000,ffff800021f00848) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f00848,ffff800021f00854,29,0,ffff800000bb8000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000bb8000,fffffd806960ff00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f00b38,ffff800024111000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f00990) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ecde4e8,ffff800021f00b38,11,fffffd807f7bfae0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca9b010,ffff800021f00b38,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ec3160,f0,ffff800021f00b38,0,ffff800021f00c20) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ec3160,ffff800021f00bd0,ffff800021f00c20) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f00ca0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f00ca0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb48a71a760, count: -14 ddb{0}> show registers rdi 0 rsi 0x1013c7 acpi_pdirpa+0xed22f rbp 0xffff800021f001b0 rbx 0xffffffffffffb55c rdx 0x1013c6 acpi_pdirpa+0xed22e rcx 0xffffffff826c65c0 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff819098f8 pf_translate_a+0x1a8 r10 0x1 r11 0x2c40b859bc88cd10 r12 0xfffffd8069610500 r13 0x108 r14 0x30 r15 0xffff800021f003b0 rip 0xffffffff811dd469 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f000f0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=196247 stat=onproc flags process=0 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec38c8,0xffffffff82893668 process=0xffff800020ec47e8 user=0xffff800021efb000, vmspace=0xfffffd8067556460 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34345 315151 29659 0 2 0 syz-executor.0 *34345 196247 29659 0 7 0x4000000 syz-executor.0 86924 496314 20511 0 2 0x2 syz-executor.1 48598 472319 1 0 3 0x100083 ttyin getty 29659 412344 20511 0 3 0x82 nanosleep syz-executor.0 56708 108473 0 0 3 0x14200 acct acct 3022 349733 0 0 3 0x14200 bored sosplice 20511 141994 38439 0 3 0x82 thrsleep syz-fuzzer 20511 325171 38439 0 3 0x4000082 nanosleep syz-fuzzer 20511 100598 38439 0 3 0x4000082 thrsleep syz-fuzzer 20511 503050 38439 0 3 0x4000082 thrsleep syz-fuzzer 20511 338747 38439 0 3 0x4000082 kqread syz-fuzzer 20511 216194 38439 0 3 0x4000082 thrsleep syz-fuzzer 20511 45630 38439 0 3 0x4000082 nanosleep syz-fuzzer 20511 382462 38439 0 3 0x4000082 thrsleep syz-fuzzer 38439 115159 56731 0 3 0x10008a pause ksh 56731 452321 48437 0 3 0x92 select sshd 48437 300122 1 0 3 0x80 select sshd 91220 192631 21434 74 3 0x100092 bpf pflogd 21434 71599 1 0 3 0x80 netio pflogd 32135 25114 9361 73 3 0x100090 kqread syslogd 9361 384245 1 0 3 0x100082 netio syslogd 71330 98204 1 77 3 0x100090 poll dhclient 73663 228194 1 0 3 0x80 poll dhclient 81405 389560 0 0 3 0x14200 bored smr 79709 309284 0 0 2 0x14200 zerothread 82012 301503 0 0 3 0x14200 aiodoned aiodoned 43048 429630 0 0 3 0x14200 syncer update 3779 312074 0 0 3 0x14200 cleaner cleaner 67062 131737 0 0 3 0x14200 reaper reaper 16889 152819 0 0 3 0x14200 pgdaemon pagedaemon 62481 472373 0 0 3 0x14200 bored crynlk 82084 447271 0 0 3 0x14200 bored crypto 74047 100458 0 0 3 0x40014200 acpi0 acpi0 10273 72179 0 0 7 0x40014200 idle1 8077 383126 0 0 3 0x14200 bored softnet 81820 502290 0 0 3 0x14200 bored systqmp 62007 144114 0 0 3 0x14200 bored systq 29604 33966 0 0 3 0x40014200 bored softclock 8389 115864 0 0 3 0x40014200 idle0 1 8129 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 34345 (syz-executor.0) thread 0xffff800020ec3160 (196247) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9578 6515K 7377K 78643K 21554 0 pcb 13 8K 8K 78643K 537 0 rtable 101 6K 9K 78643K 1577 0 ifaddr 100 20K 21K 78643K 648 0 sysctl 3 1K 1K 78643K 3 0 counters 43 33K 34K 78643K 265 0 ioctlops 0 0K 4K 78643K 1999 0 iov 0 0K 28K 78643K 422 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 78K 78643K 4623 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 75 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 842 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 9391 0 sigio 1 0K 0K 78643K 39 0 proc 69 63K 95K 78643K 1310 0 subproc 32 2K 2K 78643K 187 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 470 0 in_multi 25 1K 2K 78643K 416 0 ether_multi 1 0K 0K 78643K 120 0 mrt 0 0K 0K 78643K 74 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 911 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 237 64K 72K 78643K 21471 0 UVM aobj 120 8K 8K 78643K 142 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 474 0 NDP 19 0K 0K 78643K 161 0 temp 159 3965K 4043K 78643K 46385 0 kqueue 4 5K 19K 78643K 462 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 27 0 20 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 284 0 282 1 0 1 1 0 8 0 rtentry 112 205 0 173 2 0 2 2 0 8 0 unpcb 120 2443 0 2427 2 1 1 2 0 8 0 syncache 272 58 0 58 12 11 1 1 0 8 1 tcpqe 32 12 0 12 5 4 1 1 0 8 1 tcpcb 592 1617 0 1609 18 17 1 5 0 8 0 inpcb 296 4272 0 4234 13 9 4 5 0 8 0 rttmr 72 8 0 8 3 2 1 1 0 8 1 nd6 48 43 0 40 1 0 1 1 0 8 0 pkpcb 40 46 0 46 8 8 0 1 0 8 0 kcovpl 48 11 0 9 1 0 1 1 0 8 0 swfcl 56 5 0 0 1 0 1 1 0 8 0 ppxss 1128 27 0 27 7 6 1 1 0 8 1 pfstscr 40 5 0 5 1 1 0 1 0 8 0 pffrag 232 29 0 27 4 3 1 1 0 482 0 pffrnode 88 29 0 27 4 3 1 1 0 8 0 pffrent 40 843 0 841 4 3 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 32 0 26 1 0 1 1 0 8 0 pftag 88 3 0 2 1 0 1 1 0 8 0 pfstitem 24 34 0 32 1 0 1 1 0 8 0 pfstkey 112 44 0 42 1 0 1 1 0 8 0 pfstate 328 39 0 37 3 2 1 3 0 8 0 pfrule 1360 89 0 53 4 1 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 927 0 760 16 3 13 13 0 8 0 art_table 32 928 0 760 2 0 2 2 0 8 0 art_node 16 204 0 176 1 0 1 1 0 8 0 sysvmsgpl 40 68 0 28 1 0 1 1 0 8 0 semapl 112 840 0 830 1 0 1 1 0 8 0 shmpl 112 139 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 13050 0 11648 89 0 89 89 0 8 0 ffsino 272 13050 0 11648 95 0 95 95 0 8 0 nchpl 144 24181 0 22604 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 62283 0 62283 2 1 1 1 0 8 1 percpumem 16 143 0 111 1 0 1 1 0 8 0 vcpupl 1984 9 0 0 2 0 2 2 0 8 0 vmpool 560 30 0 21 3 2 1 1 0 8 0 pfiaddrpl 120 17 0 8 2 1 1 1 0 8 0 scsiplug 72 13 0 13 3 3 0 1 0 8 0 scxspl 200 76860 0 76860 12 11 1 7 0 8 1 plimitpl 152 491 0 483 1 0 1 1 0 8 0 sigapl 424 9582 0 9549 4 0 4 4 0 8 0 futexpl 56 83456 0 83456 2 1 1 1 0 8 1 knotepl 112 632 0 612 1 0 1 1 0 8 0 kqueuepl 152 5633 0 5609 2 0 2 2 0 8 0 pipepl 304 490 0 479 16 14 2 2 0 8 0 fdescpl 496 9565 0 9549 3 0 3 3 0 8 0 filepl 152 35405 0 35303 9 4 5 7 0 8 1 lockfpl 104 1094 0 1093 1 0 1 1 0 8 0 lockfspl 48 424 0 423 1 0 1 1 0 8 0 sessionpl 120 28 0 17 1 0 1 1 0 8 0 pgrppl 48 59 0 48 1 0 1 1 0 8 0 ucredpl 96 5022 0 5008 1 0 1 1 0 8 0 zombiepl 144 9549 0 9549 1 0 1 1 0 8 1 processpl 1008 9582 0 9549 5 0 5 5 0 8 0 procpl 632 19946 0 19905 7 3 4 5 0 8 0 srpgc 72 4 0 4 2 2 0 1 0 8 0 sosppl 144 68 0 68 6 6 0 1 0 8 0 sockpl 400 7047 0 6993 20 13 7 8 0 8 0 mcl64k 65536 263 0 0 33 22 11 33 0 8 1 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 21 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 334 0 0 15 0 15 15 0 8 0 mtagpl 96 375 0 0 6 0 6 6 0 8 0 mbufpl 256 978 0 0 59 0 59 59 0 8 0 bufpl 280 19537 0 13264 449 0 449 449 0 8 0 anonpl 16 751708 0 741953 137 97 40 55 0 124 0 amapchunkpl 152 36933 0 36726 58 45 13 20 0 158 3 amappl16 192 32274 0 31881 82 62 20 27 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 1670 0 1667 1 0 1 1 0 8 0 amappl13 168 5603 0 5600 1 0 1 1 0 8 0 amappl12 160 1371 0 1364 1 0 1 1 0 8 0 amappl11 152 404 0 389 1 0 1 1 0 8 0 amappl10 144 37 0 31 1 0 1 1 0 8 0 amappl9 136 382 0 380 1 0 1 1 0 8 0 amappl8 128 552 0 405 5 0 5 5 0 8 0 amappl7 120 377 0 368 1 0 1 1 0 8 0 amappl6 112 501 0 471 1 0 1 1 0 8 0 amappl5 104 8659 0 8646 1 0 1 1 0 8 0 amappl4 96 5900 0 5861 4 3 1 2 0 8 0 amappl3 88 3045 0 3039 1 0 1 1 0 8 0 amappl2 80 67395 0 67309 3 1 2 3 0 8 0 amappl1 72 243996 0 243542 24 14 10 19 0 8 0 amappl 80 20469 0 20395 2 0 2 2 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 64 141 0 22 2 0 2 2 0 8 0 uaddrrnd 24 9595 0 9570 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9595 0 9570 1 0 1 1 0 8 0 vmmpekpl 168 41293 0 41253 2 0 2 2 0 8 0 vmmpepl 168 1158720 0 1156970 185 102 83 88 0 357 3 vmsppl 368 9594 0 9570 3 0 3 3 0 8 0 pdppl 4096 19197 0 19149 7 0 7 7 0 8 0 pvpl 32 3269793 0 3256857 301 191 110 140 0 265 5 pmappl 232 9594 0 9570 6 4 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 368 0 53 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f001d0,138,0,ffff800021f00394,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff80000007e300,ffff800021f00478,fffffd806960ff00) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f00578,0,ffff800000ac0548,0,ffffffff82889230,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000bb8000,ffff800021f00848) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f00848,ffff800021f00854,29,0,ffff800000bb8000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000bb8000,fffffd806960ff00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f00b38,ffff800024111000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f00990) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ecde4e8,ffff800021f00b38,11,fffffd807f7bfae0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca9b010,ffff800021f00b38,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ec3160,f0,ffff800021f00b38,0,ffff800021f00c20) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ec3160,ffff800021f00bd0,ffff800021f00c20) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f00ca0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f00ca0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb48a71a760, 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 acpicpu_idle() at acpicpu_idle+0x2eb sys/dev/acpi/acpicpu.c:1204 sched_idle(ffff800020d80ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5