uvm_fault(0xffffffff82805ac0, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82805ac0, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020e1d6b0, count: 0 ddb{1}> trace pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82909780,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684640,fffffd806f6846c8,ffffffff82663410,fffffd8065ea6700,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684640,fffffd8065ea6700,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd8065ea6700,fffffd806f684640,2) at route_input+0x489 sys/net/rtsock.c:572 route_output(fffffd8065ea6700,fffffd806f684640,0,0) at route_output+0x878 sys/net/rtsock.c:868 route_usrreq(fffffd806f684640,9,fffffd8065ea6700,0,0,ffff800020ddcea8) at route_usrreq+0x36f sys/net/rtsock.c:275 sosend(fffffd806f684640,0,ffff800020e1dc60,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020ddcea8,6,ffff800020e1dc60,0,ffff800020e1dd50) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_writev(ffff800020ddcea8,ffff800020e1dd00,ffff800020e1dd50) at sys_writev+0xa7 sys/kern/sys_generic.c:312 syscall(ffff800020e1ddd0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ddd0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6160, count: -13 ddb{1}> show registers rdi 0 rsi 0x7 rbp 0xffff800020e1d5f0 rbx 0x4b13a0b85b6650 rdx 0xffff800020ddcea8 rcx 0 rax 0 r8 0xffffffff81403a95 sbappendaddr+0x1c5 r9 0x5 r10 0x2 r11 0x1bffc68e47db92ea r12 0xffffffff82909780 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008c80 rip 0xffffffff81b3edf1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020e1d590 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (dhclient) pid=165685 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc008,0xffff800020ddd128 process=0xffff800020df1348 user=0xffff800020e18000, vmspace=0xfffffd807efff2e0 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 31741 43728 8785 0 3 0x10008a pause sh 8785 264194 12284 0 3 0x82 wait syz-executor.0 88421 241370 0 0 3 0x14200 bored sosplice 30227 237474 12284 0 3 0x82 piperd syz-executor.1 12284 68647 31979 0 3 0x82 thrsleep syz-fuzzer 12284 27529 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 102148 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 177636 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 229750 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 150620 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 198741 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 360945 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 73741 31979 0 3 0x4000082 thrsleep syz-fuzzer 12284 508240 31979 0 3 0x4000082 kqread syz-fuzzer 31979 316410 32158 0 3 0x10008a pause ksh 32158 259755 51929 0 3 0x92 select sshd 67631 493476 1 0 3 0x100083 ttyin getty 51929 361653 1 0 3 0x80 select sshd 43078 247832 7644 74 3 0x100092 bpf pflogd 7644 409812 1 0 3 0x80 netio pflogd 44791 410767 99330 73 3 0x100090 kqread syslogd 99330 498237 1 0 3 0x100082 netio syslogd 26285 371943 1 77 2 0x100010 dhclient *91145 165685 1 0 7 0 dhclient 21362 100462 0 0 3 0x14200 bored smr 9658 390321 0 0 3 0x14200 pgzero zerothread 90671 438554 0 0 3 0x14200 aiodoned aiodoned 55067 295912 0 0 3 0x14200 syncer update 16095 417165 0 0 3 0x14200 cleaner cleaner 89652 156167 0 0 7 0x14200 reaper 53188 126334 0 0 3 0x14200 pgdaemon pagedaemon 57164 408290 0 0 3 0x14200 bored crynlk 17001 241892 0 0 3 0x14200 bored crypto 99524 144131 0 0 3 0x40014200 acpi0 acpi0 72970 349415 0 0 3 0x40014200 idle1 25710 452948 0 0 3 0x14200 bored softnet 61604 500883 0 0 3 0x14200 bored systqmp 97870 303170 0 0 3 0x14200 bored systq 28507 492111 0 0 3 0x40014200 bored softclock 17722 471312 0 0 3 0x40014200 idle0 1 76851 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 91145 (dhclient) thread 0xffff800020ddcea8 (165685) exclusive kernel_lock &kernel_lock r = 2 (0xffffffff82902548) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 sosend+0x559 sys/kern/uipc_socket.c:543 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_writev+0xa7 sys/kern/sys_generic.c:312 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9528 6429K 6806K 78643K 11099 0 pcb 13 8K 8K 78643K 87 0 rtable 91 3K 6K 78643K 416 0 ifaddr 81 15K 18K 78643K 174 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1540 0 iov 0 0K 16K 78643K 59 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 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 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 151 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 445 0 sigio 0 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 490 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 40 0 in_multi 80 3K 3K 78643K 185 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 3 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 1K 78643K 234 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 137 56K 64K 78643K 2477 0 UVM aobj 23 2K 2K 78643K 27 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 86 0 NDP 13 0K 0K 78643K 38 0 temp 125 3869K 3935K 78643K 12434 0 kqueue 3 4K 10K 78643K 32 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 81 0 47 2 0 2 2 0 8 0 unpcb 120 215 0 205 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 544 182 0 176 1 0 1 1 0 8 0 inpcb 296 1140 0 1131 4 2 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 22 0 21 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 ppxss 1128 3 0 3 2 2 0 1 0 8 0 pffrag 232 5 0 5 3 2 1 1 0 482 1 pffrnode 88 5 0 5 3 2 1 1 0 8 1 pffrent 40 57 0 57 3 2 1 1 0 8 1 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 22 0 21 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 26 0 10 1 0 1 1 0 8 0 pfstkey 112 28 0 12 1 0 1 1 0 8 0 pfstate 328 28 0 12 3 0 3 3 0 8 0 pfrule 1360 34 0 24 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 319 0 182 14 1 13 14 0 8 1 art_table 32 320 0 182 2 0 2 2 0 8 0 art_node 16 80 0 48 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 149 0 139 1 0 1 1 0 8 0 shmpl 112 25 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1980 0 576 90 2 88 89 0 8 0 ffsino 272 1980 0 576 94 0 94 94 0 8 0 nchpl 144 2793 0 1203 60 0 60 60 0 8 0 uvmvnodes 72 2138 0 0 39 0 39 39 0 8 0 vnodes 208 2138 0 0 113 0 113 113 0 8 0 namei 1024 7529 0 7529 3 2 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 6 2 1 1 1 0 8 1 scxspl 192 8210 0 8210 8 7 1 7 0 8 1 plimitpl 152 49 0 41 1 0 1 1 0 8 0 sigapl 424 658 0 626 4 0 4 4 0 8 0 futexpl 56 7058 0 7058 3 2 1 1 0 8 1 knotepl 112 109 0 88 1 0 1 1 0 8 0 kqueuepl 144 87 0 84 1 0 1 1 0 8 0 pipepl 304 139 0 129 2 1 1 2 0 8 0 fdescpl 496 642 0 626 3 0 3 3 0 8 0 filepl 152 3906 0 3806 5 0 5 5 0 8 1 lockfpl 104 58 0 57 1 0 1 1 0 8 0 lockfspl 48 24 0 23 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 266 0 257 1 0 1 1 0 8 0 zombiepl 144 626 0 625 1 0 1 1 0 8 0 processpl 984 658 0 625 6 1 5 5 0 8 0 procpl 624 1644 0 1602 4 0 4 4 0 8 0 sosppl 128 1 0 1 1 1 0 1 0 8 0 sockpl 400 1397 0 1376 7 3 4 4 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 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 154 0 0 19 0 19 19 0 8 0 mtagpl 96 32 0 0 1 0 1 1 0 8 0 mbufpl 256 506 0 0 31 0 31 31 0 8 0 bufpl 280 4168 0 135 289 0 289 289 0 8 0 anonpl 16 75311 0 63080 93 24 69 83 0 124 0 amapchunkpl 152 4644 0 4481 29 21 8 20 0 158 0 amappl16 192 3041 0 2149 67 20 47 58 0 8 1 amappl15 184 217 0 216 1 0 1 1 0 8 0 amappl14 176 26 0 21 1 0 1 1 0 8 0 amappl13 168 36 0 31 1 0 1 1 0 8 0 amappl12 160 194 0 191 1 0 1 1 0 8 0 amappl11 152 65 0 48 1 0 1 1 0 8 0 amappl10 144 232 0 228 1 0 1 1 0 8 0 amappl9 136 376 0 375 1 0 1 1 0 8 0 amappl8 128 367 0 331 2 0 2 2 0 8 0 amappl7 120 337 0 324 1 0 1 1 0 8 0 amappl6 112 25 0 22 1 0 1 1 0 8 0 amappl5 104 745 0 729 1 0 1 1 0 8 0 amappl4 96 496 0 465 1 0 1 1 0 8 0 amappl3 88 128 0 121 1 0 1 1 0 8 0 amappl2 80 4168 0 4107 2 0 2 2 0 8 0 amappl1 72 23856 0 23396 23 13 10 18 0 8 0 amappl 80 1918 0 1872 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 26 0 4 1 0 1 1 0 8 0 uaddrrnd 24 646 0 627 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 646 0 627 1 0 1 1 0 8 0 vmmpekpl 168 8752 0 8718 2 0 2 2 0 8 0 vmmpepl 168 86139 0 84136 158 32 126 126 0 357 31 vmsppl 368 645 0 626 2 0 2 2 0 8 0 pdppl 4096 1299 0 1255 7 1 6 6 0 8 0 pvpl 32 231012 0 215648 206 29 177 197 0 265 15 pmappl 232 645 0 626 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 285 0 12 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82798ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82902340) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82902340) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82902340) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82902340) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcef40,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff170) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff170) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e09b10) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82909780) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82909780,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sbappendaddr(fffffd806f684640,fffffd806f6846c8,ffffffff82663410,fffffd8065ea6700,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f684640,fffffd8065ea6700,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd8065ea6700,fffffd806f684640,2) at route_input+0x489 sys/net/rtsock.c:572 route_output(fffffd8065ea6700,fffffd806f684640,0,0) at route_output+0x878 sys/net/rtsock.c:868 route_usrreq(fffffd806f684640,9,fffffd8065ea6700,0,0,ffff800020ddcea8) at route_usrreq+0x36f sys/net/rtsock.c:275 sosend(fffffd806f684640,0,ffff800020e1dc60,0,0,0) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020ddcea8,6,ffff800020e1dc60,0,ffff800020e1dd50) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_writev(ffff800020ddcea8,ffff800020e1dd00,ffff800020e1dd50) at sys_writev+0xa7 sys/kern/sys_generic.c:312 syscall(ffff800020e1ddd0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ddd0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6160, count: -13