login: uvm_fault(0xffffffff8277aa10, 0xffffffff82687618, 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, 0xffffffff82687618, 0, 2) -> e m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021f118a0, count: 0 ddb{0}> trace m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a40,ffff800021f118c8,fffffd806d79cc00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021f119c8,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b0f000,ffff800021f11c98) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f11c98,ffff800021f11ca4,29,0,ffff800000b0f000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b0f000,fffffd806d79cc00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff800021f11f88,ffff800023113000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021f11de0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd80700fa278,ffff800021f11f88,11,fffffd807f7bf8a0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067df5e58,ffff800021f11f88,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e9eee8,f0,ffff800021f11f88,0,ffff800021f12070) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020e9eee8,ffff800021f12020,ffff800021f12070) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f120f0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f120f0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe836fd73940, count: -14 ddb{0}> show registers rdi 0 rsi 0x7195f acpi_pdirpa+0x5d7c7 rbp 0xffff800021f11600 rbx 0xffffffffffffab7a rdx 0x7195e acpi_pdirpa+0x5d7c6 rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0xf8cca9b54f494bf7 r12 0xfffffd806f156d00 r13 0x128 r14 0x30 r15 0xffff800021f11800 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f11540 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=452907 stat=onproc flags process=0 proc=4000000 pri=69, usrpri=69, nice=20 forw=0xffffffffffffffff, list=0xffff800020e9e508,0xffff800020e9f170 process=0xffff800020e00fd0 user=0xffff800021f0d000, vmspace=0xfffffd807effe000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 37099 240334 51597 0 2 0 syz-executor.1 *37099 452907 51597 0 7 0x4000000 syz-executor.1 37099 256655 51597 0 2 0x4000000 syz-executor.1 51597 424121 58910 0 3 0x82 nanosleep syz-executor.1 97213 456406 58910 0 3 0x82 piperd syz-executor.0 58910 237503 13633 0 3 0x82 thrsleep syz-fuzzer 58910 335887 13633 0 3 0x4000082 nanosleep syz-fuzzer 58910 211466 13633 0 3 0x4000082 thrsleep syz-fuzzer 58910 441642 13633 0 7 0x4000002 syz-fuzzer 58910 411206 13633 0 3 0x4000082 thrsleep syz-fuzzer 58910 421840 13633 0 3 0x4000082 thrsleep syz-fuzzer 58910 425919 13633 0 3 0x4000082 thrsleep syz-fuzzer 58910 511670 13633 0 2 0x4000002 syz-fuzzer 13633 137233 82732 0 3 0x10008a pause ksh 82732 47128 98616 0 3 0x92 select sshd 16626 230734 1 0 3 0x100083 ttyin getty 98616 381183 1 0 3 0x80 select sshd 44146 129883 18300 74 3 0x100092 bpf pflogd 18300 219616 1 0 3 0x80 netio pflogd 44120 323254 59305 73 3 0x100090 kqread syslogd 59305 53759 1 0 3 0x100082 netio syslogd 20248 260968 1 77 3 0x100090 poll dhclient 46004 353501 1 0 3 0x80 poll dhclient 69084 157742 0 0 3 0x14200 bored smr 67530 199880 0 0 2 0x14200 zerothread 26392 403333 0 0 3 0x14200 aiodoned aiodoned 69123 4447 0 0 3 0x14200 syncer update 99514 397814 0 0 3 0x14200 cleaner cleaner 87426 331089 0 0 3 0x14200 reaper reaper 65808 466946 0 0 3 0x14200 pgdaemon pagedaemon 9406 410380 0 0 3 0x14200 bored crynlk 8599 498882 0 0 3 0x14200 bored crypto 26584 520248 0 0 3 0x40014200 acpi0 acpi0 8896 314433 0 0 3 0x40014200 idle1 26605 505075 0 0 3 0x14200 bored softnet 75247 503561 0 0 3 0x14200 bored systqmp 32016 492979 0 0 3 0x14200 bored systq 3076 454297 0 0 3 0x40014200 bored softclock 68986 379406 0 0 3 0x40014200 idle0 1 353405 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 37099 (syz-executor.1) thread 0xffff800020e9eee8 (452907) 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 9477 6400K 6658K 78643K 10776 0 pcb 13 8K 8K 78643K 33 0 rtable 90 4K 4K 78643K 220 0 ifaddr 49 11K 11K 78643K 58 0 counters 43 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1485 0 iov 0 0K 12K 78643K 8 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1275 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 49 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 177 0 sigio 0 0K 0K 78643K 2 0 proc 60 63K 95K 78643K 448 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 11 0 in_multi 30 2K 2K 78643K 44 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 2K 78643K 367 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 141 42K 42K 78643K 1331 0 UVM aobj 8 7K 7K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 7 0K 0K 78643K 12 0 temp 83 3965K 4029K 78643K 2504 0 kqueue 3 4K 8K 78643K 8 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 21 0 19 1 0 1 1 0 8 0 rtentry 112 46 0 13 2 0 2 2 0 8 0 unpcb 120 61 0 51 1 0 1 1 0 8 0 syncache 272 4 0 4 1 1 0 1 0 8 0 tcpqe 32 30 0 30 1 1 0 1 0 8 0 tcpcb 592 60 0 56 2 1 1 2 0 8 0 inpcb 296 402 0 395 2 0 2 2 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 2 1 0 1 1 0 482 0 pffrnode 88 3 0 2 1 0 1 1 0 8 0 pffrent 40 49 0 48 1 0 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 3 0 1 1 0 1 1 0 8 0 pfstitem 24 16 0 6 1 0 1 1 0 8 0 pfstkey 112 16 0 6 1 0 1 1 0 8 0 pfstate 328 16 0 6 2 0 2 2 0 8 0 pfrule 1360 25 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 219 0 72 12 1 11 12 0 8 0 art_table 32 220 0 72 2 0 2 2 0 8 0 art_node 16 45 0 16 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 6 1 0 1 1 0 8 0 semapl 112 46 0 36 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1598 0 196 88 0 88 88 0 8 0 ffsino 272 1598 0 196 94 0 94 94 0 8 0 nchpl 144 2008 0 404 60 0 60 60 0 8 0 uvmvnodes 72 1686 0 0 31 0 31 31 0 8 0 vnodes 208 1686 0 0 89 0 89 89 0 8 0 namei 1024 5229 0 5229 1 0 1 1 0 8 1 percpumem 16 33 0 1 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 200 5968 0 5968 8 7 1 7 0 8 1 plimitpl 152 27 0 19 1 0 1 1 0 8 0 sigapl 424 392 0 361 4 0 4 4 0 8 0 futexpl 56 2292 0 2292 1 0 1 1 0 8 1 knotepl 112 68 0 48 1 0 1 1 0 8 0 kqueuepl 152 193 0 191 1 0 1 1 0 8 0 pipepl 304 95 0 84 3 1 2 2 0 8 1 fdescpl 496 377 0 361 3 0 3 3 0 8 0 filepl 152 2087 0 1985 5 0 5 5 0 8 1 lockfpl 104 29 0 28 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 120 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 116 0 107 1 0 1 1 0 8 0 zombiepl 144 361 0 361 1 0 1 1 0 8 1 processpl 1008 392 0 361 5 1 4 5 0 8 0 procpl 632 778 0 738 4 0 4 4 0 8 0 sockpl 400 488 0 469 4 1 3 4 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 181 0 0 22 0 22 22 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 266 0 0 16 0 16 16 0 8 0 bufpl 280 3635 0 186 247 0 247 247 0 8 0 anonpl 16 52197 0 33987 75 1 74 74 0 124 0 amapchunkpl 152 2080 0 1815 13 2 11 13 0 158 0 amappl16 192 1426 0 558 45 1 44 44 0 8 0 amappl15 184 102 0 99 1 0 1 1 0 8 0 amappl14 176 24 0 18 1 0 1 1 0 8 0 amappl13 168 34 0 32 1 0 1 1 0 8 0 amappl12 160 10 0 6 2 1 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 56 0 50 1 0 1 1 0 8 0 amappl9 136 366 0 366 1 1 0 1 0 8 0 amappl8 128 183 0 123 3 0 3 3 0 8 0 amappl7 120 300 0 293 1 0 1 1 0 8 0 amappl6 112 121 0 107 1 0 1 1 0 8 0 amappl5 104 442 0 429 1 0 1 1 0 8 0 amappl4 96 293 0 265 1 0 1 1 0 8 0 amappl3 88 77 0 70 1 0 1 1 0 8 0 amappl2 80 2158 0 2089 3 1 2 3 0 8 0 amappl1 72 20575 0 20105 24 14 10 19 0 8 0 amappl 80 1056 0 982 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 379 0 361 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 379 0 361 1 0 1 1 0 8 0 vmmpekpl 168 7127 0 7087 2 0 2 2 0 8 0 vmmpepl 168 55543 0 53431 114 20 94 112 0 357 0 vmsppl 368 378 0 361 2 0 2 2 0 8 0 pdppl 4096 765 0 724 6 0 6 6 0 8 0 pvpl 32 178885 0 157473 174 1 173 173 0 265 0 pmappl 232 378 0 361 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 257 0 6 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f11620,158,0,ffff800021f117e4,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a40,ffff800021f118c8,fffffd806d79cc00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021f119c8,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b0f000,ffff800021f11c98) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f11c98,ffff800021f11ca4,29,0,ffff800000b0f000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b0f000,fffffd806d79cc00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff800021f11f88,ffff800023113000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021f11de0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd80700fa278,ffff800021f11f88,11,fffffd807f7bf8a0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067df5e58,ffff800021f11f88,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e9eee8,f0,ffff800021f11f88,0,ffff800021f12070) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020e9eee8,ffff800021f12020,ffff800021f12070) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f120f0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f120f0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe836fd73940, 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: 0xc000047e90, count: -3