uvm_fault(0xffffffff8277aa10, 0xffffffff8268e8c0, 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, 0xffffffff8268e8c0, 0, 2) -> e m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800023f35c40, count: 0 ddb{0}> trace m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800023f35c68,fffffd806f0e8d00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800023f35d68,0,ffff800000ac0548,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b0e000,ffff800023f36038) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800023f36038,ffff800023f36044,29,0,ffff800000b0e000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b0e000,fffffd806f0e8d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff800023f36328,ffff800023115000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800023f36180) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e7e5418,ffff800023f36328,11,fffffd807f7bf600) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067dfdef0,ffff800023f36328,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002410a2a0,f0,ffff800023f36328,0,ffff800023f36410) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80002410a2a0,ffff800023f363c0,ffff800023f36410) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800023f36490) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f36490) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x977088e7490, count: -14 ddb{0}> show registers rdi 0 rsi 0x6b745 acpi_pdirpa+0x575ad rbp 0xffff800023f359a0 rbx 0xffffffffffffb9cf rdx 0x6b744 acpi_pdirpa+0x575ac rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0x199e728d44887c5 r12 0xfffffd80680eea00 r13 0x128 r14 0x30 r15 0xffff800023f35ba0 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023f358e0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=360301 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=71, nice=20 forw=0xffffffffffffffff, list=0xffff80002410ac80,0xffffffff82888178 process=0xffff80002410c7e0 user=0xffff800023f31000, vmspace=0xfffffd807effe8a0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91725 27080 57840 0 2 0 syz-executor.1 *91725 360301 57840 0 7 0x4000000 syz-executor.1 44779 180898 13610 0 2 0 syz-executor.0 44779 406610 13610 0 7 0x4000080 syz-executor.0 45590 162056 0 0 3 0x14280 nfsidl nfsio 32781 70178 0 0 3 0x14280 nfsidl nfsio 27955 128175 0 0 3 0x14280 nfsidl nfsio 18063 317479 0 0 3 0x14280 nfsidl nfsio 12995 267232 0 0 3 0x14280 nfsidl nfsio 96019 281995 0 0 3 0x14280 nfsidl nfsio 66119 157621 0 0 3 0x14280 nfsidl nfsio 22377 500313 0 0 3 0x14280 nfsidl nfsio 11369 149566 0 0 3 0x14280 nfsidl nfsio 68276 142336 0 0 3 0x14280 nfsidl nfsio 5520 337692 0 0 3 0x14280 nfsidl nfsio 25003 409977 0 0 3 0x14280 nfsidl nfsio 53616 353879 0 0 3 0x14280 nfsidl nfsio 3445 161590 0 0 3 0x14280 nfsidl nfsio 32412 28498 0 0 3 0x14280 nfsidl nfsio 6286 1004 0 0 3 0x14280 nfsidl nfsio 28139 73129 0 0 3 0x14280 nfsidl nfsio 15713 303297 0 0 3 0x14280 nfsidl nfsio 64660 357349 0 0 3 0x14280 nfsidl nfsio 89186 319602 0 0 3 0x14280 nfsidl nfsio 67165 37237 0 0 3 0x14200 bored sosplice 57840 268160 40687 0 3 0x82 nanosleep syz-executor.1 13610 357323 40687 0 3 0x82 nanosleep syz-executor.0 40687 324177 23547 0 3 0x82 kqread syz-fuzzer 40687 183083 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 354354 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 122856 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 321523 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 31722 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 302702 23547 0 3 0x4000082 thrsleep syz-fuzzer 40687 182482 23547 0 3 0x4000082 thrsleep syz-fuzzer 23547 121394 24472 0 3 0x10008a pause ksh 24472 122154 98055 0 3 0x92 select sshd 61248 120880 1 0 3 0x100083 ttyin getty 98055 218840 1 0 3 0x80 select sshd 89177 493343 94704 74 3 0x100092 bpf pflogd 94704 378067 1 0 3 0x80 netio pflogd 43719 207693 65762 73 3 0x100090 kqread syslogd 65762 463483 1 0 3 0x100082 netio syslogd 26930 345691 1 77 3 0x100090 poll dhclient 92717 178086 1 0 3 0x80 poll dhclient 88401 471743 0 0 3 0x14200 bored smr 53788 35837 0 0 2 0x14200 zerothread 38879 439253 0 0 3 0x14200 aiodoned aiodoned 40732 192438 0 0 3 0x14200 syncer update 40393 524152 0 0 3 0x14200 cleaner cleaner 81021 352784 0 0 3 0x14200 reaper reaper 82047 133225 0 0 3 0x14200 pgdaemon pagedaemon 30160 304515 0 0 3 0x14200 bored crynlk 40116 148096 0 0 3 0x14200 bored crypto 6513 432239 0 0 3 0x40014200 acpi0 acpi0 62582 260864 0 0 3 0x40014200 idle1 58793 320461 0 0 3 0x14200 bored softnet 57148 156023 0 0 3 0x14200 bored systqmp 10272 31539 0 0 3 0x14200 bored systq 74688 405760 0 0 3 0x40014200 bored softclock 29786 165115 0 0 3 0x40014200 idle0 1 66252 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 91725 (syz-executor.1) thread 0xffff80002410a2a0 (360301) 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 9515 6477K 6808K 78643K 10943 0 pcb 13 8K 8K 78643K 43 0 rtable 88 3K 3K 78643K 283 0 ifaddr 66 13K 14K 78643K 96 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1527 0 iov 0 0K 16K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1322 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 57 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 304 0 sigio 0 0K 0K 78643K 11 0 proc 60 63K 95K 78643K 446 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 1 0K 0K 78643K 37 0 in_multi 31 2K 2K 78643K 67 0 ether_multi 2 0K 0K 78643K 4 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 2K 78643K 382 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 140 58K 58K 78643K 1670 0 UVM aobj 13 4K 4K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 20 0 NDP 11 0K 0K 78643K 23 0 temp 99 3959K 4023K 78643K 2977 0 kqueue 3 4K 10K 78643K 17 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 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 27 0 25 1 0 1 1 0 8 0 rtentry 112 61 0 27 2 0 2 2 0 8 0 unpcb 120 146 0 136 1 0 1 1 0 8 0 syncache 272 6 0 6 3 2 1 1 0 8 1 tcpqe 32 164 0 164 2 1 1 1 0 8 1 tcpcb 592 454 0 390 5 0 5 5 0 8 0 inpcb 296 1001 0 989 3 1 2 2 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 0 1 1 0 8 1 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 1 0 0 1 0 1 1 0 8 0 pfstitem 24 21 0 3 1 0 1 1 0 8 0 pfstkey 112 21 0 3 1 0 1 1 0 8 0 pfstate 328 21 0 3 2 0 2 2 0 8 0 pfrule 1360 23 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 222 0 85 13 0 13 13 0 8 2 art_table 32 223 0 85 2 0 2 2 0 8 0 art_node 16 60 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 51 0 41 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1768 0 366 89 1 88 89 0 8 0 ffsino 272 1768 0 366 94 0 94 94 0 8 0 nchpl 144 2359 0 751 60 0 60 60 0 8 0 uvmvnodes 72 1887 0 0 35 0 35 35 0 8 0 vnodes 208 1887 0 0 100 0 100 100 0 8 0 namei 1024 6175 0 6175 2 1 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 1 1 0 1 1 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 200 7109 0 7109 10 8 2 7 0 8 2 plimitpl 152 31 0 23 1 0 1 1 0 8 0 sigapl 424 540 0 487 6 0 6 6 0 8 0 futexpl 56 3792 0 3792 2 1 1 1 0 8 1 knotepl 112 77 0 57 1 0 1 1 0 8 0 kqueuepl 152 30 0 28 1 0 1 1 0 8 0 pipepl 304 107 0 96 3 1 2 2 0 8 1 fdescpl 496 504 0 487 3 0 3 3 0 8 0 filepl 152 3041 0 2937 6 1 5 5 0 8 0 lockfpl 104 83 0 82 1 0 1 1 0 8 0 lockfspl 48 26 0 25 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 96 153 0 144 1 0 1 1 0 8 0 zombiepl 144 487 0 487 1 0 1 1 0 8 1 processpl 1008 540 0 487 7 0 7 7 0 8 0 procpl 632 1148 0 1086 6 0 6 6 0 8 0 sosppl 144 3 0 3 1 1 0 1 0 8 0 sockpl 400 1176 0 1154 6 2 4 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 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 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 438 0 0 27 0 27 27 0 8 0 bufpl 280 3978 0 187 271 0 271 271 0 8 0 anonpl 16 62374 0 44372 75 1 74 74 0 124 0 amapchunkpl 152 2708 0 2417 14 2 12 14 0 158 0 amappl16 192 1920 0 1063 44 0 44 44 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 18 1 0 1 1 0 8 0 amappl13 168 28 0 26 1 0 1 1 0 8 0 amappl12 160 143 0 138 2 1 1 1 0 8 0 amappl11 152 197 0 179 1 0 1 1 0 8 0 amappl10 144 12 0 7 1 0 1 1 0 8 0 amappl9 136 366 0 366 1 1 0 1 0 8 0 amappl8 128 124 0 89 2 0 2 2 0 8 0 amappl7 120 256 0 249 1 0 1 1 0 8 0 amappl6 112 261 0 245 1 0 1 1 0 8 0 amappl5 104 579 0 564 1 0 1 1 0 8 0 amappl4 96 440 0 409 1 0 1 1 0 8 0 amappl3 88 75 0 67 1 0 1 1 0 8 0 amappl2 80 2945 0 2867 3 1 2 3 0 8 0 amappl1 72 24616 0 24128 24 14 10 19 0 8 0 amappl 80 1402 0 1321 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 507 0 488 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 507 0 488 1 0 1 1 0 8 0 vmmpekpl 168 7760 0 7714 3 0 3 3 0 8 0 vmmpepl 168 71615 0 69428 121 24 97 114 0 357 1 vmsppl 368 506 0 488 2 0 2 2 0 8 0 pdppl 4096 1021 0 978 6 0 6 6 0 8 0 pvpl 32 213558 0 192094 185 7 178 179 0 265 4 pmappl 232 506 0 488 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 275 0 9 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800023f359c0,158,0,ffff800023f35b84,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044a00,ffff800023f35c68,fffffd806f0e8d00) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800023f35d68,0,ffff800000ac0548,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b0e000,ffff800023f36038) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800023f36038,ffff800023f36044,29,0,ffff800000b0e000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b0e000,fffffd806f0e8d00) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff800023f36328,ffff800023115000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800023f36180) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e7e5418,ffff800023f36328,11,fffffd807f7bf600) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067dfdef0,ffff800023f36328,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002410a2a0,f0,ffff800023f36328,0,ffff800023f36410) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff80002410a2a0,ffff800023f363c0,ffff800023f36410) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800023f36490) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f36490) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x977088e7490, 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 __mp_lock(ffffffff8289f7d0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8289f7d0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff8289f7d0,2) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:435 sleep_finish(ffff800023f30530,1) at sleep_finish+0x111 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800023f30530,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800023f30530,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 rwsleep(ffff80002410ac80,ffffffff82753190,120,ffffffff823bb789,0) at rwsleep+0x11b sys/kern/kern_synch.c:313 futex_wait(2101b19ec90,8,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:254 sys_futex(ffff80002410ac80,ffff800023f306d0,ffff800023f30720) at sys_futex+0x114 sys/kern/sys_futex.c:110 syscall(ffff800023f307a0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f307a0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x210cf89b5e0, count: -13