uvm_fault(0xffffffff8277aa10, 0xffffffff82678050, 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, 0xffffffff82678050, 0, 2) -> e m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff8000230f9b60, count: 0 ddb{0}> trace m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a40,ffff8000230f9b88,fffffd8068f24b00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff8000230f9c88,0,ffff800000b49a80,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b3c800,ffff8000230f9f58) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000230f9f58,ffff8000230f9f64,29,0,ffff800000b3c800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b3c800,fffffd8068f24b00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff8000230fa248,ffff8000214e3000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff8000230fa0a0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e7c0348,ffff8000230fa248,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067eff7d8,ffff8000230fa248,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020eb2c78,f0,ffff8000230fa248,0,ffff8000230fa330) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020eb2c78,ffff8000230fa2e0,ffff8000230fa330) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000230fa3b0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fa3b0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa371f3f6ab0, count: -14 ddb{0}> show registers rdi 0 rsi 0x72351 acpi_pdirpa+0x5e1b9 rbp 0xffff8000230f98c0 rbx 0xffffffffffff8cc1 rdx 0x72350 acpi_pdirpa+0x5e1b8 rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0x4392b5ef1a7e6ac9 r12 0xfffffd8068f23700 r13 0x108 r14 0x30 r15 0xffff8000230f9ac0 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230f9800 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=405001 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020eb2020,0xffffffff82888178 process=0xffff8000ffffabe0 user=0xffff8000230f5000, vmspace=0xfffffd807effe5c0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54855 128408 85158 0 2 0 syz-executor.0 *54855 405001 85158 0 7 0x4000000 syz-executor.0 85158 41036 87910 0 3 0x82 nanosleep syz-executor.0 11134 392164 0 0 3 0x14200 bored sosplice 5290 139577 87910 0 3 0x82 piperd syz-executor.1 3055 132744 0 0 3 0x14200 acct acct 87910 427387 92085 0 3 0x82 thrsleep syz-fuzzer 87910 212112 92085 0 3 0x4000082 nanosleep syz-fuzzer 87910 513597 92085 0 3 0x4000082 thrsleep syz-fuzzer 87910 210552 92085 0 3 0x4000082 kqread syz-fuzzer 87910 115012 92085 0 3 0x4000082 thrsleep syz-fuzzer 87910 300997 92085 0 3 0x4000082 thrsleep syz-fuzzer 87910 372984 92085 0 7 0x4000002 syz-fuzzer 87910 196997 92085 0 3 0x4000082 thrsleep syz-fuzzer 92085 390283 80641 0 3 0x10008a pause ksh 80641 33816 59231 0 3 0x92 select sshd 74423 236909 1 0 3 0x100083 ttyin getty 59231 63022 1 0 3 0x80 select sshd 13562 340684 88416 74 3 0x100092 bpf pflogd 88416 104220 1 0 3 0x80 netio pflogd 18713 457028 90136 73 3 0x100090 kqread syslogd 90136 346076 1 0 3 0x100082 netio syslogd 43413 259601 1 77 3 0x100090 poll dhclient 7917 8957 1 0 3 0x80 poll dhclient 26124 140445 0 0 3 0x14200 bored smr 53702 383989 0 0 2 0x14200 zerothread 16063 311776 0 0 3 0x14200 aiodoned aiodoned 39189 522942 0 0 3 0x14200 syncer update 81297 446368 0 0 3 0x14200 cleaner cleaner 64680 450762 0 0 3 0x14200 reaper reaper 45650 383597 0 0 3 0x14200 pgdaemon pagedaemon 74243 176241 0 0 3 0x14200 bored crynlk 46426 317976 0 0 3 0x14200 bored crypto 75377 337658 0 0 3 0x40014200 acpi0 acpi0 95122 291615 0 0 3 0x40014200 idle1 9398 515530 0 0 3 0x14200 bored softnet 62004 23720 0 0 3 0x14200 bored systqmp 48562 443067 0 0 3 0x14200 bored systq 64517 482000 0 0 3 0x40014200 bored softclock 4194 352997 0 0 3 0x40014200 idle0 1 32487 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 54855 (syz-executor.0) thread 0xffff800020eb2c78 (405001) exclusive rwlock netlock r = 0 (0xffffffff827435e0) #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:867 #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:570 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8289f9d8) #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:570 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9513 6430K 6730K 78643K 11180 0 pcb 13 8K 8K 78643K 104 0 rtable 117 17K 17K 78643K 523 0 ifaddr 74 14K 14K 78643K 146 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1595 0 iov 0 0K 16K 78643K 56 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1461 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 200 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1106 0 sigio 0 0K 0K 78643K 5 0 proc 63 63K 95K 78643K 596 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 30 0 in_multi 30 2K 2K 78643K 122 0 ether_multi 1 0K 0K 78643K 14 0 mrt 2 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 2K 78643K 468 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 138 40K 42K 78643K 4036 0 UVM aobj 30 5K 5K 78643K 31 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 63 0 NDP 12 0K 0K 78643K 38 0 temp 135 3968K 4036K 78643K 7172 0 kqueue 3 4K 12K 78643K 16 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 14 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 43 0 41 1 0 1 1 0 8 0 rtentry 112 98 0 63 2 0 2 2 0 8 0 unpcb 120 908 0 898 1 0 1 1 0 8 0 syncache 272 7 0 7 3 3 0 1 0 8 0 tcpqe 32 816 0 816 2 2 0 1 0 8 0 tcpcb 592 168 0 162 4 3 1 2 0 8 0 inpcb 296 3181 0 3174 3 1 2 3 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 20 0 14 1 0 1 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pffrag 232 4 0 3 2 1 1 1 0 482 0 pffrnode 88 4 0 3 2 1 1 1 0 8 0 pffrent 40 53 0 52 2 1 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 22 0 13 1 0 1 1 0 8 0 pfstitem 24 327 0 24 2 0 2 2 0 8 0 pfstkey 112 327 0 24 10 0 10 10 0 8 0 pfstate 328 327 0 24 28 1 27 28 0 8 0 pfrule 1360 37 0 25 3 1 2 2 0 8 0 art_heap8 4096 4 0 3 3 2 1 3 0 8 0 art_heap4 256 463 0 313 16 6 10 15 0 8 0 art_table 32 467 0 316 2 0 2 2 0 8 0 art_node 16 97 0 68 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 11 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 196 0 186 1 0 1 1 0 8 0 shmpl 112 28 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2637 0 1234 89 1 88 89 0 8 0 ffsino 272 2637 0 1234 95 1 94 94 0 8 0 nchpl 144 4141 0 2549 60 0 60 60 0 8 0 uvmvnodes 72 2863 0 0 53 0 53 53 0 8 0 vnodes 208 2863 0 0 151 0 151 151 0 8 0 namei 1024 10870 0 10870 2 1 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 4 2 1 1 1 0 8 0 pfiaddrpl 120 8 0 3 1 0 1 1 0 8 0 scxspl 200 12453 0 12453 9 8 1 7 0 8 1 plimitpl 152 50 0 42 1 0 1 1 0 8 0 sigapl 424 1314 0 1281 4 0 4 4 0 8 0 futexpl 56 13765 0 13765 1 0 1 1 0 8 1 knotepl 112 111 0 91 1 0 1 1 0 8 0 kqueuepl 152 48 0 46 1 0 1 1 0 8 0 pipepl 304 180 0 169 2 0 2 2 0 8 1 fdescpl 496 1297 0 1281 3 0 3 3 0 8 0 filepl 152 7742 0 7640 7 2 5 6 0 8 1 lockfpl 104 176 0 175 1 0 1 1 0 8 0 lockfspl 48 64 0 63 1 0 1 1 0 8 0 sessionpl 120 21 0 10 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 1166 0 1157 1 0 1 1 0 8 0 zombiepl 144 1281 0 1281 2 1 1 1 0 8 1 processpl 1008 1314 0 1281 6 1 5 5 0 8 0 procpl 632 3386 0 3345 5 1 4 4 0 8 0 srpgc 72 2 0 2 1 1 0 1 0 8 0 sosppl 144 4 0 4 2 2 0 1 0 8 0 sockpl 400 4348 0 4329 6 2 4 5 0 8 2 mcl64k 65536 257 0 0 33 0 33 33 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 229 0 0 28 0 28 28 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 433 0 0 24 0 24 24 0 8 0 bufpl 280 5018 0 186 346 0 346 346 0 8 0 anonpl 16 134462 0 117312 77 3 74 76 0 124 0 amapchunkpl 152 7349 0 7031 29 15 14 27 0 158 1 amappl16 192 4553 0 3742 55 8 47 53 0 8 6 amappl15 184 91 0 87 1 0 1 1 0 8 0 amappl14 176 23 0 18 1 0 1 1 0 8 0 amappl13 168 583 0 582 1 0 1 1 0 8 0 amappl12 160 332 0 328 2 1 1 1 0 8 0 amappl11 152 64 0 49 1 0 1 1 0 8 0 amappl10 144 20 0 15 1 0 1 1 0 8 0 amappl9 136 366 0 365 2 1 1 1 0 8 0 amappl8 128 157 0 119 2 0 2 2 0 8 0 amappl7 120 300 0 291 1 0 1 1 0 8 0 amappl6 112 143 0 127 1 0 1 1 0 8 0 amappl5 104 947 0 934 1 0 1 1 0 8 0 amappl4 96 863 0 837 1 0 1 1 0 8 0 amappl3 88 530 0 523 1 0 1 1 0 8 0 amappl2 80 8749 0 8680 3 1 2 3 0 8 0 amappl1 72 49504 0 49040 24 14 10 19 0 8 0 amappl 80 3714 0 3634 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 30 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1303 0 1285 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1303 0 1285 1 0 1 1 0 8 0 vmmpekpl 168 12115 0 12076 2 0 2 2 0 8 0 vmmpepl 168 172789 0 170773 163 45 118 121 0 357 27 vmsppl 368 1302 0 1285 2 0 2 2 0 8 0 pdppl 4096 2613 0 2572 7 1 6 6 0 8 0 pvpl 32 411241 0 390866 188 8 180 182 0 265 5 pmappl 232 1302 0 1285 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 321 0 20 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000230f98e0,138,0,ffff8000230f9aa4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a40,ffff8000230f9b88,fffffd8068f24b00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff8000230f9c88,0,ffff800000b49a80,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b3c800,ffff8000230f9f58) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000230f9f58,ffff8000230f9f64,29,0,ffff800000b3c800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b3c800,fffffd8068f24b00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff8000230fa248,ffff8000214e3000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff8000230fa0a0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e7c0348,ffff8000230fa248,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067eff7d8,ffff8000230fa248,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020eb2c78,f0,ffff8000230fa248,0,ffff8000230fa330) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020eb2c78,ffff8000230fa2e0,ffff8000230fa330) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000230fa3b0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fa3b0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa371f3f6ab0, 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: 0xc0002d35e0, count: -3