uvm_fault(0xffffffff8279d488, 0xffffffff8269f4e0, 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(0xffffffff8279d488, 0xffffffff8269f4e0, 0, 2) -> e m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff800021f4ba20, count: 0 ddb{0}> trace m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044b80,ffff800021f4ba48,fffffd8073b4c000) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f4bb48,0,ffff800000bd3538,0,ffffffff8288d248,0) at pflog_packet+0x3a4 pf_test(2,1,ffff800000b8e800,ffff800021f4bd68) at pf_test+0xfc5 sys/net/pf.c:7226 ip_input_if(ffff800021f4bd68,ffff800021f4bd74,4,0,ffff800000b8e800) at ip_input_if+0x578 sys/netinet/ip_input.c:331 ipv4_input(ffff800000b8e800,fffffd8073b4c000) at ipv4_input+0x48 sys/netinet/ip_input.c:230 tun_dev_write(5d00,ffff800021f4c058,ffff800023f13000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f4beb0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e6af8f8,ffff800021f4c058,11,fffffd807f7bf9c0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806a841318,ffff800021f4c058,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ea1160,f0,ffff800021f4c058,0,ffff800021f4c140) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ea1160,ffff800021f4c0f0,ffff800021f4c140) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f4c1c0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f4c1c0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31581d11110, count: -14 ddb{0}> show registers rdi 0 rsi 0x1042a1 acpi_pdirpa+0xf0109 rbp 0xffff800021f4b780 rbx 0xffffffffffffb97b rdx 0x1042a0 acpi_pdirpa+0xf0108 rcx 0xffffffff826c2900 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff813e6ab8 pf_translate_a+0x1a8 r10 0x1 r11 0x6149f5667793133c r12 0xfffffd8066124200 r13 0x8c r14 0x20 r15 0xffff800021f4b980 rip 0xffffffff811b0e59 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f4b6c0 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=302630 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea1650,0xffffffff82890a20 process=0xffff800020ecebd8 user=0xffff800021f47000, vmspace=0xfffffd80663f2e88 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27286 365236 37902 0 2 0 syz-executor.0 *27286 302630 37902 0 7 0x4000000 syz-executor.0 24980 38583 31487 0 2 0 syz-executor.1 24980 40166 31487 0 3 0x4000080 netcon2 syz-executor.1 32658 384322 0 0 3 0x14200 acct acct 31487 477886 98126 0 3 0x82 nanosleep syz-executor.1 37902 389335 98126 0 3 0x82 nanosleep syz-executor.0 40778 167480 1 0 3 0x100083 ttyin getty 27470 325817 0 0 3 0x14200 bored sosplice 98126 297766 88260 0 3 0x82 thrsleep syz-fuzzer 98126 293371 88260 0 3 0x4000082 nanosleep syz-fuzzer 98126 211707 88260 0 3 0x4000082 kqread syz-fuzzer 98126 486162 88260 0 3 0x4000082 thrsleep syz-fuzzer 98126 316644 88260 0 3 0x4000082 nanosleep syz-fuzzer 98126 500948 88260 0 3 0x4000082 thrsleep syz-fuzzer 98126 349024 88260 0 3 0x4000082 thrsleep syz-fuzzer 98126 296528 88260 0 3 0x4000082 thrsleep syz-fuzzer 88260 496877 17215 0 3 0x10008a pause ksh 17215 321666 98986 0 3 0x92 select sshd 98986 97154 1 0 3 0x80 select sshd 67418 281090 47779 74 3 0x100092 bpf pflogd 47779 40865 1 0 3 0x80 netio pflogd 3689 393667 28617 73 3 0x100090 kqread syslogd 28617 402271 1 0 3 0x100082 netio syslogd 35013 118338 1 77 3 0x100090 poll dhclient 9689 185662 1 0 3 0x80 poll dhclient 31237 229596 0 0 3 0x14200 bored smr 63195 189359 0 0 2 0x14200 zerothread 1675 509813 0 0 3 0x14200 aiodoned aiodoned 42904 337799 0 0 3 0x14200 syncer update 13304 470486 0 0 3 0x14200 cleaner cleaner 17115 292774 0 0 3 0x14200 reaper reaper 86861 267317 0 0 3 0x14200 pgdaemon pagedaemon 50008 173948 0 0 3 0x14200 bored crynlk 42139 413879 0 0 3 0x14200 bored crypto 46253 201634 0 0 3 0x40014200 acpi0 acpi0 11814 423162 0 0 7 0x40014200 idle1 53435 261112 0 0 3 0x14200 bored softnet 47308 388586 0 0 3 0x14200 bored systqmp 42089 246907 0 0 3 0x14200 bored systq 55102 459666 0 0 3 0x40014200 bored softclock 66642 523652 0 0 3 0x40014200 idle0 1 431870 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 27286 (syz-executor.0) thread 0xffff800020ea1160 (302630) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9571 6566K 7397K 78643K 19483 0 pcb 13 8K 8K 78643K 383 0 rtable 108 13K 14K 78643K 1374 0 ifaddr 91 17K 18K 78643K 549 0 sysctl 1 1K 1K 78643K 1 0 counters 43 33K 34K 78643K 205 0 ioctlops 0 0K 4K 78643K 2068 0 iov 0 0K 24K 78643K 342 0 mount 1 1K 1K 78643K 1 0 vnodes 1226 77K 77K 78643K 4191 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 68 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 17 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 8833 0 sigio 0 0K 0K 78643K 60 0 proc 67 63K 95K 78643K 1389 0 subproc 32 2K 2K 78643K 136 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 377 0 in_multi 32 2K 2K 78643K 505 0 ether_multi 1 0K 0K 78643K 73 0 mrt 0 0K 0K 78643K 37 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 2K 78643K 829 0 pfkey data 0 0K 1K 78643K 10 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 316 506K 506K 78643K 20463 0 UVM aobj 89 8K 8K 78643K 96 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 381 0 NDP 17 0K 0K 78643K 153 0 temp 158 3969K 4033K 78643K 75363 0 kqueue 3 4K 22K 78643K 432 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 19 0 15 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 96 338 0 336 1 0 1 1 0 8 0 rtentry 112 183 0 144 2 0 2 2 0 8 0 unpcb 120 2298 0 2278 2 1 1 2 0 8 0 syncache 272 77 0 77 11 11 0 1 0 8 0 tcpqe 32 29 0 29 5 5 0 1 0 8 0 tcpcb 592 1318 0 1306 18 17 1 3 0 8 0 inpcb 296 3680 0 3672 12 10 2 2 0 8 1 rttmr 72 16 0 16 2 2 0 1 0 8 0 nd6 48 64 0 59 1 0 1 1 0 8 0 pkpcb 40 63 0 63 7 6 1 1 0 8 1 kcovpl 48 8 0 6 1 0 1 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 11 0 11 3 2 1 1 0 8 1 pfstscr 40 21 0 21 2 2 0 1 0 8 0 pffrag 232 42 0 42 6 6 0 1 0 482 0 pffrnode 88 42 0 42 6 6 0 1 0 8 0 pffrent 40 644 0 644 8 8 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 53 0 51 3 2 1 1 0 8 0 pfstitem 24 23 0 21 1 0 1 1 0 8 0 pfstkey 112 49 0 47 1 0 1 1 0 8 0 pfstate 328 41 0 39 2 1 1 2 0 8 0 pfsrctr 152 28 0 28 1 1 0 1 0 8 0 pfrule 1360 72 0 58 4 2 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 538 0 367 14 2 12 13 0 8 0 art_table 32 539 0 367 2 0 2 2 0 8 0 art_node 16 182 0 147 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 93 0 7 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12446 0 11010 91 0 91 91 0 8 0 ffsino 272 12446 0 11010 97 0 97 97 0 8 0 nchpl 144 23107 0 21523 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 57549 0 57549 1 0 1 1 0 8 1 percpumem 16 113 0 81 1 0 1 1 0 8 0 vcpupl 1984 37 0 0 5 0 5 5 0 8 0 vmpool 560 50 0 13 3 0 3 3 0 8 0 pfiaddrpl 120 33 0 28 3 2 1 1 0 8 0 scsiplug 72 4 0 4 1 1 0 1 0 8 0 scxspl 200 71319 0 71319 11 10 1 7 0 8 1 plimitpl 152 334 0 326 1 0 1 1 0 8 0 sigapl 424 9033 0 8999 4 0 4 4 0 8 0 futexpl 56 76279 0 76279 1 0 1 1 0 8 1 knotepl 112 702 0 682 2 1 1 2 0 8 0 kqueuepl 152 5671 0 5623 4 1 3 3 0 8 1 pipepl 304 662 0 651 19 17 2 3 0 8 1 fdescpl 496 9016 0 8999 3 0 3 3 0 8 0 filepl 152 32700 0 32597 9 4 5 7 0 8 1 lockfpl 104 1183 0 1182 1 0 1 1 0 8 0 lockfspl 48 489 0 488 1 0 1 1 0 8 0 sessionpl 120 25 0 14 1 0 1 1 0 8 0 pgrppl 48 32 0 21 1 0 1 1 0 8 0 ucredpl 96 3612 0 3603 1 0 1 1 0 8 0 zombiepl 144 8999 0 8999 1 0 1 1 0 8 1 processpl 1008 9033 0 8999 5 0 5 5 0 8 0 procpl 632 18895 0 18852 4 0 4 4 0 8 0 sosppl 144 108 0 108 9 9 0 1 0 8 0 sockpl 400 6404 0 6374 17 13 4 5 0 8 0 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 12 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 16 0 0 2 0 2 2 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 348 0 0 16 0 16 16 0 8 0 mtagpl 96 479 0 0 8 0 8 8 0 8 0 mbufpl 256 1089 0 0 51 0 51 51 0 8 0 bufpl 280 19130 0 12855 449 0 449 449 0 8 0 anonpl 16 682284 0 672446 93 52 41 66 0 124 1 amapchunkpl 152 32627 0 32400 27 18 9 14 0 158 0 amappl16 192 31776 0 31375 68 47 21 42 0 8 0 amappl15 184 234 0 234 2 2 0 1 0 8 0 amappl14 176 2829 0 2823 1 0 1 1 0 8 0 amappl13 168 94 0 93 1 0 1 1 0 8 0 amappl12 160 1256 0 1251 1 0 1 1 0 8 0 amappl11 152 92 0 77 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 2714 0 2710 1 0 1 1 0 8 0 amappl8 128 2862 0 2719 5 0 5 5 0 8 0 amappl7 120 339 0 330 1 0 1 1 0 8 0 amappl6 112 165 0 147 1 0 1 1 0 8 0 amappl5 104 10396 0 10383 1 0 1 1 0 8 0 amappl4 96 436 0 395 5 3 2 2 0 8 1 amappl3 88 3108 0 3102 1 0 1 1 0 8 0 amappl2 80 62927 0 62843 3 1 2 3 0 8 0 amappl1 72 232805 0 232323 24 14 10 19 0 8 0 amappl 80 19380 0 19277 3 0 3 3 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 95 0 7 2 0 2 2 0 8 0 uaddrrnd 24 9066 0 9012 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9066 0 9012 1 0 1 1 0 8 0 vmmpekpl 168 40009 0 39962 3 0 3 3 0 8 0 vmmpepl 168 1088212 0 1086296 162 76 86 102 0 357 2 vmsppl 368 9065 0 9012 6 1 5 5 0 8 0 pdppl 4096 18139 0 18061 11 1 10 10 0 8 0 pvpl 32 3159487 0 3146369 283 167 116 166 0 265 9 pmappl 232 9065 0 9012 5 1 4 4 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 333 0 32 10 1 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800021f4b7a0,ac,0,ffff800021f4b964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044b80,ffff800021f4ba48,fffffd8073b4c000) at pflog_mtap+0x446 sys/net/if_pflog.c:390 pflog_packet(ffff800021f4bb48,0,ffff800000bd3538,0,ffffffff8288d248,0) at pflog_packet+0x3a4 pf_test(2,1,ffff800000b8e800,ffff800021f4bd68) at pf_test+0xfc5 sys/net/pf.c:7226 ip_input_if(ffff800021f4bd68,ffff800021f4bd74,4,0,ffff800000b8e800) at ip_input_if+0x578 sys/netinet/ip_input.c:331 ipv4_input(ffff800000b8e800,fffffd8073b4c000) at ipv4_input+0x48 sys/netinet/ip_input.c:230 tun_dev_write(5d00,ffff800021f4c058,ffff800023f13000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867 spec_write(ffff800021f4beb0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806e6af8f8,ffff800021f4c058,11,fffffd807f7bf9c0) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806a841318,ffff800021f4c058,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ea1160,f0,ffff800021f4c058,0,ffff800021f4c140) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ea1160,ffff800021f4c0f0,ffff800021f4c140) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800021f4c1c0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f4c1c0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:568 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31581d11110, 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:1204 sched_idle(ffff800020d80ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5