uvm_fault(0xffffffff8277aa10, 0xffffffff82698a78, 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, 0xffffffff82698a78, 0, 2) -> e m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 end trace frame: 0xffff8000241221f0, count: 0 ddb{0}> trace m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044880,ffff800024122218,fffffd806f264100) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800024122318,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b3c800,ffff8000241225e8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000241225e8,ffff8000241225f4,29,0,ffff800000b3c800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b3c800,fffffd806f264100) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff8000241228d8,ffff800020f0f000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800024122730) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed985b8,ffff8000241228d8,11,fffffd807f7bf840) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca95e50,ffff8000241228d8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ea0ee8,f0,ffff8000241228d8,0,ffff8000241229c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ea0ee8,ffff800024122970,ffff8000241229c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800024122a40) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024122a40) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x663d386adc0, count: -14 ddb{0}> show registers rdi 0 rsi 0x76c47 acpi_pdirpa+0x62aaf rbp 0xffff800024121f50 rbx 0xffffffffffffce06 rdx 0x76c46 acpi_pdirpa+0x62aae rcx 0xffffffff826b1a40 mbstat_boot_boot_cpumem rax 0 r8 0x2 r9 0xffffffff81e7a848 pf_translate_a+0x1a8 r10 0x1 r11 0xf85960f08577a436 r12 0xfffffd806d552c00 r13 0x108 r14 0x30 r15 0xffff800024122150 rip 0xffffffff81142cf9 m_copyback+0x119 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800024121e90 ss 0x10 m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8) ddb{0}> show proc PROC (syz-executor.0) pid=183946 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea18c8,0xffff800020ea02a0 process=0xffff800020eac400 user=0xffff80002411d000, vmspace=0xfffffd807effe450 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80473 360303 83805 0 2 0 syz-executor.0 *80473 183946 83805 0 7 0x4000000 syz-executor.0 80473 435036 83805 0 3 0x4000080 fsleep syz-executor.0 83805 470267 60693 0 3 0x82 nanosleep syz-executor.0 36544 183605 60693 0 3 0x82 nanosleep syz-executor.1 60693 350386 52662 0 3 0x82 thrsleep syz-fuzzer 60693 382094 52662 0 3 0x4000082 thrsleep syz-fuzzer 60693 85374 52662 0 3 0x4000082 kqread syz-fuzzer 60693 359411 52662 0 3 0x4000082 thrsleep syz-fuzzer 60693 151185 52662 0 3 0x4000082 thrsleep syz-fuzzer 60693 417797 52662 0 3 0x4000082 thrsleep syz-fuzzer 60693 48832 52662 0 3 0x4000082 thrsleep syz-fuzzer 60693 439602 52662 0 3 0x4000082 thrsleep syz-fuzzer 52662 107277 31488 0 3 0x10008a pause ksh 31488 14851 93377 0 3 0x92 select sshd 41314 520167 1 0 3 0x100083 ttyin getty 93377 485606 1 0 3 0x80 select sshd 36381 130785 14905 74 3 0x100092 bpf pflogd 14905 140646 1 0 3 0x80 netio pflogd 4154 322744 21979 73 3 0x100090 kqread syslogd 21979 380239 1 0 3 0x100082 netio syslogd 49157 182449 1 77 3 0x100090 poll dhclient 68086 520411 1 0 3 0x80 poll dhclient 99325 245363 0 0 3 0x14200 bored smr 9273 465768 0 0 2 0x14200 zerothread 69442 280434 0 0 3 0x14200 aiodoned aiodoned 27363 459838 0 0 3 0x14200 syncer update 71794 481962 0 0 3 0x14200 cleaner cleaner 8385 299615 0 0 7 0x14200 reaper 37049 40630 0 0 3 0x14200 pgdaemon pagedaemon 84096 354630 0 0 3 0x14200 bored crynlk 70083 7214 0 0 3 0x14200 bored crypto 33379 205164 0 0 3 0x40014200 acpi0 acpi0 57400 487228 0 0 3 0x40014200 idle1 58095 395592 0 0 3 0x14200 bored softnet 24897 472587 0 0 3 0x14200 bored systqmp 86350 78495 0 0 3 0x14200 bored systq 32400 181256 0 0 3 0x40014200 bored softclock 84514 499077 0 0 3 0x40014200 idle0 1 91435 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 80473 (syz-executor.0) thread 0xffff800020ea0ee8 (183946) 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 9497 6408K 7239K 78643K 11238 0 pcb 13 8K 8K 78643K 59 0 rtable 122 7K 7K 78643K 304 0 ifaddr 65 13K 13K 78643K 80 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 24K 78643K 29 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1393 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 301 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 491 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 10 0 in_multi 33 2K 2K 78643K 59 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 2K 78643K 389 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 150 25K 25K 78643K 1520 0 UVM aobj 16 3K 3K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 32 0 NDP 10 0K 0K 78643K 18 0 temp 94 3956K 4032K 78643K 3383 0 kqueue 3 4K 6K 78643K 12 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 25 0 23 1 0 1 1 0 8 0 rtentry 112 65 0 20 2 0 2 2 0 8 0 unpcb 120 178 0 168 1 0 1 1 0 8 0 syncache 272 4 0 4 1 1 0 1 0 8 0 tcpqe 32 33 0 33 1 1 0 1 0 8 0 tcpcb 592 55 0 47 2 0 2 2 0 8 1 inpcb 296 174 0 167 3 1 2 2 0 8 1 nd6 48 11 0 4 1 0 1 1 0 8 0 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 4 0 4 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 11 0 4 1 0 1 1 0 8 0 pfstitem 24 18 0 2 1 0 1 1 0 8 0 pfstkey 112 18 0 2 1 0 1 1 0 8 0 pfstate 328 18 0 2 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 256 243 0 50 13 0 13 13 0 8 0 art_table 32 244 0 50 2 0 2 2 0 8 0 art_node 16 64 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 14 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1723 0 320 88 0 88 88 0 8 0 ffsino 272 1723 0 320 94 0 94 94 0 8 0 nchpl 144 2273 0 685 60 0 60 60 0 8 0 uvmvnodes 72 1928 0 0 36 0 36 36 0 8 0 vnodes 208 1928 0 0 102 0 102 102 0 8 0 namei 1024 6152 0 6152 2 1 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 0 1 0 1 1 0 8 0 scxspl 200 6873 0 6873 9 3 6 7 0 8 6 plimitpl 152 20 0 12 1 0 1 1 0 8 0 sigapl 424 513 0 482 4 0 4 4 0 8 0 futexpl 56 2207 0 2206 2 1 1 1 0 8 0 knotepl 112 87 0 67 1 0 1 1 0 8 0 kqueuepl 152 24 0 22 1 0 1 1 0 8 0 pipepl 304 102 0 91 2 0 2 2 0 8 1 fdescpl 496 498 0 482 3 0 3 3 0 8 0 filepl 152 2262 0 2160 5 0 5 5 0 8 0 lockfpl 104 65 0 64 1 0 1 1 0 8 0 lockfspl 48 27 0 26 1 0 1 1 0 8 0 sessionpl 120 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 122 0 113 1 0 1 1 0 8 0 zombiepl 144 482 0 481 2 1 1 1 0 8 0 processpl 1008 513 0 481 6 1 5 5 0 8 0 procpl 632 926 0 885 4 0 4 4 0 8 0 sockpl 400 378 0 359 4 0 4 4 0 8 2 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 149 0 0 18 0 18 18 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 166 0 0 10 0 10 10 0 8 0 bufpl 280 3960 0 190 270 0 270 270 0 8 0 anonpl 16 60247 0 42820 73 1 72 72 0 124 0 amapchunkpl 152 2545 0 2253 14 2 12 13 0 158 0 amappl16 192 1620 0 766 43 0 43 43 0 8 0 amappl15 184 9 0 8 2 1 1 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 155 0 151 1 0 1 1 0 8 0 amappl12 160 11 0 6 1 0 1 1 0 8 0 amappl11 152 153 0 137 1 0 1 1 0 8 0 amappl10 144 14 0 9 1 0 1 1 0 8 0 amappl9 136 403 0 401 2 1 1 1 0 8 0 amappl8 128 219 0 158 2 0 2 2 0 8 0 amappl7 120 266 0 260 1 0 1 1 0 8 0 amappl6 112 226 0 208 1 0 1 1 0 8 0 amappl5 104 348 0 336 1 0 1 1 0 8 0 amappl4 96 486 0 454 1 0 1 1 0 8 0 amappl3 88 200 0 190 1 0 1 1 0 8 0 amappl2 80 2344 0 2269 3 1 2 3 0 8 0 amappl1 72 22169 0 21642 24 14 10 19 0 8 0 amappl 80 1227 0 1141 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 16 0 1 1 0 1 1 0 8 0 uaddrrnd 24 498 0 482 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 498 0 482 1 0 1 1 0 8 0 vmmpekpl 168 7554 0 7519 2 0 2 2 0 8 0 vmmpepl 168 67597 0 65375 151 21 130 130 0 357 32 vmsppl 368 497 0 481 2 0 2 2 0 8 0 pdppl 4096 1003 0 962 6 0 6 6 0 8 0 pvpl 32 201386 0 181306 174 1 173 173 0 265 1 pmappl 232 497 0 481 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 250 0 5 7 0 7 7 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline] m_copyback(ffff800024121f70,138,0,ffff800024122134,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756 pflog_mtap(ffff800000044880,ffff800024122218,fffffd806f264100) at pflog_mtap+0x446 sys/net/if_pflog.c:389 pflog_packet(ffff800024122318,0,ffff800000ac1a88,0,ffffffff82879b30,0) at pflog_packet+0x3a4 pf_test(18,1,ffff800000b3c800,ffff8000241225e8) at pf_test+0xfc5 sys/net/pf.c:7226 ip6_input_if(ffff8000241225e8,ffff8000241225f4,29,0,ffff800000b3c800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300 ipv6_input(ffff800000b3c800,fffffd806f264100) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 tun_dev_write(5d00,ffff8000241228d8,ffff800020f0f000,2) at tun_dev_write+0x204 sys/net/if_tun.c:868 spec_write(ffff800024122730) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd806ed985b8,ffff8000241228d8,11,fffffd807f7bf840) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268 vn_write(fffffd806ca95e50,ffff8000241228d8,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414 dofilewritev(ffff800020ea0ee8,f0,ffff8000241228d8,0,ffff8000241229c0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365 sys_write(ffff800020ea0ee8,ffff800024122970,ffff8000241229c0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800024122a40) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024122a40) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x663d386adc0, 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 uvm_unmap_detach(ffff800020ddf500,1) at uvm_unmap_detach+0xfc sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807effe8a0) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807effe8a0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020eacbe0) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d99b28) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -9