uvm_fault(0xffffffff8277aa10, 0xffffffff82687ed0, 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, 0xffffffff82687ed0, 0, 2) -> e m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021f2c0f0, count: 0 ddb{0}> trace m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044940,ffff800021f2c118,fffffd806a369700) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021f2c218,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000adc000,ffff800021f2c4e8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f2c4e8,ffff800021f2c4f4,29,0,ffff800000adc000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000adc000,fffffd806a369700) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f2c7d8,ffff800020eef000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021f2c630) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e6cb5b8,ffff800021f2c7d8,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067d6f998,ffff800021f2c7d8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e9fb40,f0,ffff800021f2c7d8,0,ffff800021f2c8c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020e9fb40,ffff800021f2c870,ffff800021f2c8c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f2c940) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f2c940) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f085101a70, count: -14 ddb{0}> show registers rdi 0 rsi 0x75565 acpi_pdirpa+0x613cd rbp 0xffff800021f2be50 rbx 0xffffffffffffac91 rdx 0x75564 acpi_pdirpa+0x613cc rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0x350f6b0398862afa r12 0xfffffd806d658700 r13 0x108 r14 0x30 r15 0xffff800021f2c050 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f2bd90 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=178380 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff800020e9f160,0xffffffff82888178 process=0xffff800020ecc008 user=0xffff800021f27000, vmspace=0xfffffd806e8eae68 estcpu=22, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 59019 319803 95059 0 7 0 syz-executor.0 *59019 178380 95059 0 7 0x4000000 syz-executor.0 49267 460015 65547 0 2 0 syz-executor.1 49267 192835 65547 0 2 0x4000000 syz-executor.1 70310 396215 0 0 3 0x14200 acct acct 46681 426647 1 0 3 0x100083 ttyin getty 65547 448058 13963 0 3 0x82 nanosleep syz-executor.1 48493 36900 0 0 3 0x14200 bored sosplice 95059 79282 13963 0 3 0x82 nanosleep syz-executor.0 13963 283756 90728 0 3 0x82 thrsleep syz-fuzzer 13963 179947 90728 0 3 0x4000082 thrsleep syz-fuzzer 13963 486969 90728 0 3 0x4000082 thrsleep syz-fuzzer 13963 383344 90728 0 3 0x4000082 thrsleep syz-fuzzer 13963 89926 90728 0 3 0x4000082 thrsleep syz-fuzzer 13963 42433 90728 0 3 0x4000082 kqread syz-fuzzer 13963 483801 90728 0 3 0x4000082 thrsleep syz-fuzzer 13963 354298 90728 0 3 0x4000082 thrsleep syz-fuzzer 90728 75282 8498 0 3 0x10008a pause ksh 8498 457921 38653 0 3 0x92 select sshd 38653 143988 1 0 3 0x80 select sshd 98620 473344 21482 74 3 0x100092 bpf pflogd 21482 298714 1 0 3 0x80 netio pflogd 86461 461198 26577 73 3 0x100090 kqread syslogd 26577 211987 1 0 3 0x100082 netio syslogd 66313 156417 1 77 3 0x100090 poll dhclient 2317 230610 1 0 3 0x80 poll dhclient 17305 266587 0 0 3 0x14200 bored smr 16731 413506 0 0 2 0x14200 zerothread 58775 347191 0 0 3 0x14200 aiodoned aiodoned 87727 203159 0 0 3 0x14200 syncer update 73372 505980 0 0 3 0x14200 cleaner cleaner 70788 402837 0 0 3 0x14200 reaper reaper 72854 280904 0 0 3 0x14200 pgdaemon pagedaemon 19337 91406 0 0 3 0x14200 bored crynlk 65092 324522 0 0 3 0x14200 bored crypto 593 226043 0 0 3 0x40014200 acpi0 acpi0 35127 399078 0 0 3 0x40014200 idle1 39494 250285 0 0 3 0x14200 bored softnet 53001 225342 0 0 3 0x14200 bored systqmp 29246 52151 0 0 3 0x14200 bored systq 99426 411270 0 0 3 0x40014200 bored softclock 25481 301407 0 0 3 0x40014200 idle0 1 460001 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 59019 (syz-executor.0) thread 0xffff800020e9fb40 (178380) 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 9510 6419K 7381K 78643K 12799 0 pcb 13 8K 8K 78643K 73 0 rtable 102 3K 4K 78643K 348 0 ifaddr 64 12K 13K 78643K 99 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1556 0 iov 0 0K 16K 78643K 50 0 mount 1 1K 1K 78643K 1 0 vnodes 1232 77K 78K 78643K 1771 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 86 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 491 0 sigio 0 0K 0K 78643K 3 0 proc 61 63K 95K 78643K 502 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 32 0 in_multi 32 2K 2K 78643K 80 0 ether_multi 1 0K 0K 78643K 7 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 55 254K 254K 78643K 55 0 exec 0 0K 2K 78643K 417 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 161 75K 76K 78643K 2348 0 UVM aobj 19 2K 2K 78643K 23 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 38 0 NDP 11 0K 0K 78643K 24 0 temp 128 3962K 4026K 78643K 4540 0 kqueue 3 4K 8K 78643K 18 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 12 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 40 0 38 1 0 1 1 0 8 0 rtentry 112 75 0 34 2 0 2 2 0 8 0 unpcb 120 449 0 439 1 0 1 1 0 8 0 syncache 272 7 0 7 3 3 0 1 0 8 0 tcpqe 32 81 0 81 2 2 0 1 0 8 0 tcpcb 592 316 0 310 4 1 3 3 0 8 1 inpcb 296 570 0 560 4 2 2 2 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 15 0 8 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 4 0 2 1 0 1 1 0 482 0 pffrnode 88 4 0 2 1 0 1 1 0 8 0 pffrent 40 94 0 92 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 pfstitem 24 18 0 7 1 0 1 1 0 8 0 pfstkey 112 18 0 7 1 0 1 1 0 8 0 pfstate 328 18 0 7 2 0 2 2 0 8 0 pfrule 1360 23 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 270 0 60 14 0 14 14 0 8 0 art_table 32 271 0 60 2 0 2 2 0 8 0 art_node 16 74 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 11 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 84 0 74 1 0 1 1 0 8 0 shmpl 112 20 0 4 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1985 0 575 89 0 89 89 0 8 0 ffsino 272 1985 0 575 95 0 95 95 0 8 0 nchpl 144 2814 0 1231 60 0 60 60 0 8 0 uvmvnodes 72 2523 0 0 46 0 46 46 0 8 0 vnodes 208 2523 0 0 133 0 133 133 0 8 0 namei 1024 8313 0 8313 3 2 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 6 1 0 1 1 0 8 0 scxspl 200 8241 0 8241 10 9 1 7 0 8 1 plimitpl 152 51 0 43 1 0 1 1 0 8 0 sigapl 424 706 0 672 4 0 4 4 0 8 0 futexpl 56 6754 0 6754 2 1 1 1 0 8 1 knotepl 112 89 0 69 1 0 1 1 0 8 0 kqueuepl 152 133 0 131 1 0 1 1 0 8 0 pipepl 304 131 0 120 2 0 2 2 0 8 0 fdescpl 496 689 0 672 3 0 3 3 0 8 0 filepl 152 4402 0 4297 5 0 5 5 0 8 0 lockfpl 104 69 0 67 1 0 1 1 0 8 0 lockfspl 48 28 0 26 1 0 1 1 0 8 0 sessionpl 120 20 0 9 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 537 0 528 1 0 1 1 0 8 0 zombiepl 144 672 0 672 2 1 1 1 0 8 1 processpl 1008 706 0 672 5 0 5 5 0 8 0 procpl 632 1730 0 1687 5 0 5 5 0 8 1 sosppl 144 6 0 6 3 2 1 1 0 8 1 sockpl 400 1062 0 1040 7 3 4 4 0 8 1 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 216 0 0 26 0 26 26 0 8 0 mtagpl 96 24 0 0 1 0 1 1 0 8 0 mbufpl 256 317 0 0 19 0 19 19 0 8 0 bufpl 280 4110 0 186 281 0 281 281 0 8 0 anonpl 16 85018 0 66773 90 15 75 88 0 124 0 amapchunkpl 152 3822 0 3538 14 2 12 13 0 158 0 amappl16 192 2689 0 1825 56 12 44 55 0 8 0 amappl15 184 175 0 173 2 1 1 1 0 8 0 amappl14 176 28 0 21 1 0 1 1 0 8 0 amappl13 168 31 0 30 1 0 1 1 0 8 0 amappl12 160 239 0 234 1 0 1 1 0 8 0 amappl11 152 68 0 52 1 0 1 1 0 8 0 amappl10 144 56 0 52 1 0 1 1 0 8 0 amappl9 136 371 0 369 1 0 1 1 0 8 0 amappl8 128 190 0 128 2 0 2 2 0 8 0 amappl7 120 316 0 307 1 0 1 1 0 8 0 amappl6 112 129 0 114 1 0 1 1 0 8 0 amappl5 104 984 0 968 1 0 1 1 0 8 0 amappl4 96 315 0 286 1 0 1 1 0 8 0 amappl3 88 94 0 85 1 0 1 1 0 8 0 amappl2 80 4294 0 4215 3 1 2 3 0 8 0 amappl1 72 30828 0 30333 24 14 10 19 0 8 0 amappl 80 2036 0 1950 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 22 0 4 1 0 1 1 0 8 0 uaddrrnd 24 700 0 678 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 700 0 678 1 0 1 1 0 8 0 vmmpekpl 168 9598 0 9562 2 0 2 2 0 8 0 vmmpepl 168 96953 0 94708 135 34 101 124 0 357 3 vmsppl 368 699 0 678 2 0 2 2 0 8 0 pdppl 4096 1407 0 1361 6 0 6 6 0 8 0 pvpl 32 267652 0 245561 223 41 182 212 0 265 3 pmappl 232 699 0 678 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 277 0 10 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f2be70,138,0,ffff800021f2c034,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044940,ffff800021f2c118,fffffd806a369700) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800021f2c218,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000adc000,ffff800021f2c4e8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff800021f2c4e8,ffff800021f2c4f4,29,0,ffff800000adc000) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000adc000,fffffd806a369700) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff800021f2c7d8,ffff800020eef000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800021f2c630) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e6cb5b8,ffff800021f2c7d8,11,fffffd807f7bf960) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd8067d6f998,ffff800021f2c7d8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020e9fb40,f0,ffff800021f2c7d8,0,ffff800021f2c8c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020e9fb40,ffff800021f2c870,ffff800021f2c8c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f2c940) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f2c940) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f085101a70, 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: 0x7f7ffffcf6a0, count: -3