uvm_fault(0xffffffff827b5130, 0xffffffff82683ae8, 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(0xffffffff827b5130, 0xffffffff82683ae8, 0, 2) -> e m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff8000223ce730, count: 0 ddb{0}> trace m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044ac0,ffff8000223ce758,fffffd8069083200) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff8000223ce858,0,ffff800000b7f560,0,ffffffff8288be90,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b4a800,ffff8000223ceb28) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000223ceb28,ffff8000223ceb34,29,0,ffff800000b4a800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b4a800,fffffd8069083200) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000223cee18,ffff8000232f4000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff8000223cec70) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed6f1a8,ffff8000223cee18,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 vn_write(fffffd806cae6568,ffff8000223cee18,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800022389170,f0,ffff8000223cee18,0,ffff8000223cef00) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800022389170,ffff8000223ceeb0,ffff8000223cef00) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000223cef80) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000223cef80) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:566 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb14ec03a630, count: -14 ddb{0}> show registers rdi 0 rsi 0x9d03f acpi_pdirpa+0x88ea7 rbp 0xffff8000223ce490 rbx 0xffffffffffff8adc rdx 0x9d03e acpi_pdirpa+0x88ea6 rcx 0xffffffff826be400 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0x1 r10 0xd0f0028a2e1c1497 r11 0x52aa8ed0b5e9b76a r12 0xfffffd806a2eea00 r13 0x128 r14 0x30 r15 0xffff8000223ce690 rip 0xffffffff811ebd79 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000223ce3d0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.1) pid=221673 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800022388a08,0xffffffff82880298 process=0xffff8000212727e8 user=0xffff8000223ca000, vmspace=0xfffffd8069853018 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 98198 75197 41492 0 2 0 syz-executor.1 *98198 221673 41492 0 7 0x4000000 syz-executor.1 41492 451512 46190 0 3 0x82 nanosleep syz-executor.1 75526 254636 1 0 3 0x100083 ttyin getty 26716 500794 46190 0 2 0x2 syz-executor.0 44525 150991 0 0 3 0x14280 nfsidl nfsio 55783 434857 0 0 3 0x14280 nfsidl nfsio 8405 146923 0 0 3 0x14280 nfsidl nfsio 50894 86386 0 0 3 0x14280 nfsidl nfsio 93144 462925 0 0 3 0x14280 nfsidl nfsio 85183 211432 0 0 3 0x14280 nfsidl nfsio 83492 143572 0 0 3 0x14280 nfsidl nfsio 82258 523132 0 0 3 0x14280 nfsidl nfsio 99130 77906 0 0 3 0x14280 nfsidl nfsio 10639 516245 0 0 3 0x14280 nfsidl nfsio 22760 106478 0 0 3 0x14280 nfsidl nfsio 82165 505525 0 0 3 0x14280 nfsidl nfsio 26934 35454 0 0 3 0x14280 nfsidl nfsio 830 12253 0 0 3 0x14280 nfsidl nfsio 39647 204582 0 0 3 0x14280 nfsidl nfsio 12374 341794 0 0 3 0x14280 nfsidl nfsio 47940 446020 0 0 3 0x14280 nfsidl nfsio 89454 332625 0 0 3 0x14280 nfsidl nfsio 2735 523042 0 0 3 0x14280 nfsidl nfsio 15182 185014 0 0 3 0x14280 nfsidl nfsio 196 475174 0 0 3 0x14200 bored sosplice 46190 307034 50832 0 3 0x82 thrsleep syz-fuzzer 46190 61092 50832 0 3 0x4000082 nanosleep syz-fuzzer 46190 176171 50832 0 3 0x4000082 thrsleep syz-fuzzer 46190 201360 50832 0 3 0x4000082 thrsleep syz-fuzzer 46190 28002 50832 0 3 0x4000082 thrsleep syz-fuzzer 46190 252443 50832 0 3 0x4000082 thrsleep syz-fuzzer 46190 444536 50832 0 3 0x4000082 kqread syz-fuzzer 46190 224472 50832 0 3 0x4000082 thrsleep syz-fuzzer 50832 217341 45252 0 3 0x10008a pause ksh 45252 140652 11077 0 3 0x92 select sshd 11077 452182 1 0 3 0x80 select sshd 62128 18576 65896 74 3 0x100092 bpf pflogd 65896 34998 1 0 3 0x80 netio pflogd 18592 241991 83071 73 3 0x100090 kqread syslogd 83071 487287 1 0 3 0x100082 netio syslogd 54973 300015 1 77 3 0x100090 poll dhclient 40481 326356 1 0 3 0x80 poll dhclient 54108 395194 0 0 3 0x14200 bored smr 53443 87070 0 0 2 0x14200 zerothread 5969 409627 0 0 3 0x14200 aiodoned aiodoned 48155 408437 0 0 3 0x14200 syncer update 32423 181743 0 0 3 0x14200 cleaner cleaner 82533 438749 0 0 3 0x14200 reaper reaper 47306 22229 0 0 3 0x14200 pgdaemon pagedaemon 73125 422541 0 0 3 0x14200 bored crynlk 38436 238661 0 0 3 0x14200 bored crypto 51586 186941 0 0 3 0x14200 bored viomb 2050 484607 0 0 3 0x40014200 acpi0 acpi0 77869 254886 0 0 7 0x40014200 idle1 61742 407774 0 0 2 0x14200 softnet 50113 184924 0 0 3 0x14200 bored systqmp 12163 149347 0 0 3 0x14200 bored systq 50180 217046 0 0 3 0x40014200 bored softclock 53047 389518 0 0 3 0x40014200 idle0 1 364243 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 98198 (syz-executor.1) thread 0xffff800022389170 (221673) exclusive rwlock netlock r = 0 (0xffffffff826b6990) #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:866 #2 spec_write+0xd4 sys/kern/spec_vnops.c:309 #3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 #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:566 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8287cad8) #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:566 #5 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9547 6449K 7390K 78643K 16301 0 pcb 13 8K 8K 78643K 261 0 rtable 94 4K 5K 78643K 1151 0 ifaddr 84 15K 15K 78643K 319 0 sysctl 2 0K 0K 78643K 2 0 counters 47 34K 34K 78643K 129 0 ioctlops 0 0K 4K 78643K 1814 0 iov 0 0K 24K 78643K 188 0 mount 1 1K 1K 78643K 1 0 vnodes 1212 76K 77K 78643K 3050 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 32 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 440 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1825 197K 290K 78643K 13109 0 file desc 5 13K 25K 78643K 5499 0 sigio 0 0K 0K 78643K 42 0 proc 62 63K 95K 78643K 1104 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 468 0 in_multi 30 2K 2K 78643K 438 0 ether_multi 1 0K 0K 78643K 88 0 mrt 0 0K 0K 78643K 85 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 2K 78643K 558 0 pfkey data 0 0K 0K 78643K 5 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 217 199K 199K 78643K 12740 0 UVM aobj 32 7K 7K 78643K 37 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 287 0 NDP 15 0K 0K 78643K 89 0 temp 147 3973K 4093K 78643K 39466 0 kqueue 3 4K 18K 78643K 330 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 13 0 7 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 179 0 177 1 0 1 1 0 8 0 rtentry 112 235 0 200 2 0 2 2 0 8 0 unpcb 120 1314 0 1286 2 0 2 2 0 8 0 syncache 272 80 0 80 8 8 0 1 0 8 0 tcpqe 32 36 0 36 5 5 0 1 0 8 0 tcpcb 592 942 0 932 14 11 3 5 0 8 0 inpcb 296 2544 0 2531 10 8 2 3 0 8 0 rttmr 72 37 0 37 4 3 1 1 0 8 1 nd6 48 54 0 48 1 0 1 1 0 8 0 pkpcb 40 20 0 20 3 3 0 1 0 8 0 kcovpl 48 5 0 3 1 0 1 1 0 8 0 ppxss 1128 5 0 5 1 1 0 1 0 8 0 pfstscr 40 24 0 24 2 2 0 1 0 8 0 pffrag 232 5 0 5 1 1 0 1 0 482 0 pffrnode 88 5 0 5 1 1 0 1 0 8 0 pffrent 40 20 0 20 1 1 0 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 55 0 53 3 2 1 1 0 8 0 pfstitem 24 60 0 58 1 0 1 1 0 8 0 pfstkey 112 82 0 80 2 1 1 2 0 8 0 pfstate 328 70 0 68 5 4 1 5 0 8 0 pfrule 1360 83 0 52 5 2 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1129 0 976 17 5 12 13 0 8 2 art_table 32 1130 0 976 2 0 2 2 0 8 0 art_node 16 223 0 194 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 3 1 0 1 1 0 8 0 semapl 112 438 0 428 1 0 1 1 0 8 0 shmpl 112 34 0 5 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8511 0 7102 89 0 89 89 0 8 0 ffsino 272 8511 0 7102 95 0 95 95 0 8 0 nchpl 144 15437 0 13845 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 37927 0 37927 3 2 1 1 0 8 1 percpumem 16 75 0 41 1 0 1 1 0 8 0 vcpupl 1984 18 0 0 3 0 3 3 0 8 0 vmpool 560 18 0 0 2 0 2 2 0 8 0 pfiaddrpl 120 26 0 21 2 1 1 1 0 8 0 scxspl 192 45361 0 45361 8 7 1 7 0 8 1 plimitpl 152 249 0 241 1 0 1 1 0 8 0 sigapl 424 5736 0 5683 9 2 7 7 0 8 1 futexpl 56 44084 0 44084 3 2 1 1 0 8 1 knotepl 112 469 0 449 1 0 1 1 0 8 0 kqueuepl 152 2332 0 2314 3 2 1 2 0 8 0 pipepl 304 367 0 356 8 7 1 2 0 8 0 fdescpl 496 5691 0 5675 3 0 3 3 0 8 0 filepl 152 19531 0 19429 7 2 5 7 0 8 1 lockfpl 104 674 0 673 1 0 1 1 0 8 0 lockfspl 48 279 0 278 1 0 1 1 0 8 0 sessionpl 120 22 0 11 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 2552 0 2539 1 0 1 1 0 8 0 zombiepl 144 5683 0 5683 1 0 1 1 0 8 1 processpl 1008 5736 0 5683 7 0 7 7 0 8 0 procpl 632 11701 0 11640 6 0 6 6 0 8 0 sosppl 144 70 0 70 4 4 0 1 0 8 0 sockpl 400 4089 0 4046 11 6 5 5 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 282 0 0 16 0 16 16 0 8 0 mtagpl 96 375 0 0 8 0 8 8 0 8 0 mbufpl 256 1025 0 0 50 0 50 50 0 8 0 bufpl 280 11135 0 4887 447 0 447 447 0 8 0 anonpl 16 514635 0 507782 88 59 29 50 0 124 0 amapchunkpl 152 22467 0 22283 24 16 8 16 0 158 0 amappl16 192 22181 0 21939 61 48 13 31 0 8 0 amappl15 184 4 0 2 1 0 1 1 0 8 0 amappl14 176 1474 0 1467 1 0 1 1 0 8 0 amappl13 168 260 0 257 1 0 1 1 0 8 0 amappl12 160 1329 0 1325 1 0 1 1 0 8 0 amappl11 152 59 0 44 1 0 1 1 0 8 0 amappl10 144 2474 0 2470 1 0 1 1 0 8 0 amappl9 136 162 0 160 1 0 1 1 0 8 0 amappl8 128 358 0 252 4 0 4 4 0 8 0 amappl7 120 278 0 272 1 0 1 1 0 8 0 amappl6 112 2559 0 2540 1 0 1 1 0 8 0 amappl5 104 5002 0 4983 1 0 1 1 0 8 0 amappl4 96 1654 0 1620 1 0 1 1 0 8 0 amappl3 88 448 0 440 1 0 1 1 0 8 0 amappl2 80 41978 0 41903 3 1 2 3 0 8 0 amappl1 72 161601 0 161120 26 16 10 19 0 8 0 amappl 80 12093 0 12021 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 36 0 5 1 0 1 1 0 8 0 uaddrrnd 24 5709 0 5675 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5709 0 5675 1 0 1 1 0 8 0 vmmpekpl 168 29222 0 29173 3 0 3 3 0 8 0 vmmpepl 168 709169 0 707600 133 58 75 85 0 357 1 vmsppl 368 5708 0 5675 4 0 4 4 0 8 0 pdppl 4096 11425 0 11368 8 0 8 8 0 8 0 pvpl 32 1869830 0 1859702 230 142 88 130 0 265 4 pmappl 232 5708 0 5675 4 1 3 3 0 8 1 extentpl 40 57 0 39 1 0 1 1 0 8 0 phpool 112 317 0 25 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff8000223ce4b0,158,0,ffff8000223ce674,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044ac0,ffff8000223ce758,fffffd8069083200) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff8000223ce858,0,ffff800000b7f560,0,ffffffff8288be90,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b4a800,ffff8000223ceb28) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000223ceb28,ffff8000223ceb34,29,0,ffff800000b4a800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b4a800,fffffd8069083200) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d01,ffff8000223cee18,ffff8000232f4000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff8000223cec70) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed6f1a8,ffff8000223cee18,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274 vn_write(fffffd806cae6568,ffff8000223cee18,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800022389170,f0,ffff8000223cee18,0,ffff8000223cef00) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800022389170,ffff8000223ceeb0,ffff8000223cef00) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff8000223cef80) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000223cef80) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:566 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb14ec03a630, 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:1206 sched_idle(ffff800020d80ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5