uvm_fault(0xffffffff827b26d8, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827b26d8, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800021efe360, count: 0 ddb{0}> trace pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828da920,2) 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(fffffd806f681190,fffffd806f681218,ffffffff825ad940,fffffd8068c7a600,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f681190,fffffd8068c7a600,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd8068c7a600,0,18) at route_input+0x489 sys/net/rtsock.c:572 rtm_addr(d,ffff800000b15a00) at rtm_addr+0x10b sys/net/rtsock.c:1751 rt_ifa_del(ffff800000b15a00,200404,ffff800000b15a40,0) at rt_ifa_del+0x3ed sys/net/route.c:1192 rt_ifa_dellocal(ffff800000b15a00) at rt_ifa_dellocal+0x149 sys/net/route.c:1290 in6_purgeaddr(ffff800000b15a00) at in6_purgeaddr+0x114 sys/netinet6/in6.c:922 in6_ifdetach(ffff800000b16800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000b16800) at if_detach+0x148 sys/net/if.c:1147 tun_clone_destroy(ffff800000b16800) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800021efea80) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed6a0d8,7,fffffd807f7bf660,ffff800020e0a608) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8079f5ac00,ffff800020e0a608) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8079f5ac00,ffff800020e0a608) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8079f5ac00,ffff800020e0a608) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8079f5ac00,ffff800020e0a608) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e0a608) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e0a608,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e0a608,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e0a608,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e0a608) at userret+0x199 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffc6630, count: -24 ddb{0}> show registers rdi 0x7 rsi 0x7 rbp 0xffff800021efe2a0 rbx 0x385281b88ffd1c3c rdx 0xffff800020e0a608 rcx 0 rax 0 r8 0xffffffff812fda25 sbappendaddr+0x1c5 r9 0x5 r10 0x2 r11 0x8390cee662dde14c r12 0xffffffff828da920 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008f00 rip 0xffffffff821b6db1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800021efe240 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (syz-executor.1) pid=294653 stat=onproc flags process=a proc=2000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020e09288,0xffffffff828bfa58 process=0xffff800020e9abd0 user=0xffff800021ef9000, vmspace=0xfffffd807efff170 estcpu=36, cpticks=2, pctcpu=0.16 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87982 290865 0 0 3 0x14200 bored sosplice 23450 304893 52655 0 3 0x82 piperd syz-executor.0 52655 130711 84771 0 3 0x82 thrsleep syz-fuzzer 52655 210764 84771 0 3 0x4000082 nanosleep syz-fuzzer 52655 316668 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 496782 84771 0 7 0x4000002 syz-fuzzer 52655 82799 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 229491 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 5892 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 439663 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 302748 84771 0 3 0x4000082 thrsleep syz-fuzzer 52655 50419 84771 0 3 0x4000082 kqread syz-fuzzer 84771 270369 51977 0 3 0x10008a pause ksh 51977 117295 70196 0 3 0x92 select sshd 99078 149980 1 0 3 0x100083 ttyin getty 70196 142496 1 0 3 0x80 select sshd 44173 301260 92158 74 3 0x100092 bpf pflogd 92158 465033 1 0 3 0x80 netio pflogd 4596 522200 34902 73 3 0x100090 kqread syslogd 34902 509843 1 0 3 0x100082 netio syslogd 10216 282930 1 77 2 0x100090 dhclient 74999 116529 1 0 3 0x80 poll dhclient 19455 422388 0 0 3 0x14200 bored smr 88674 411329 0 0 3 0x14200 pgzero zerothread 96329 240474 0 0 3 0x14200 aiodoned aiodoned 43760 358215 0 0 3 0x14200 syncer update 24511 493156 0 0 3 0x14200 cleaner cleaner 10384 221942 0 0 3 0x14200 reaper reaper 72354 215045 0 0 3 0x14200 pgdaemon pagedaemon 33741 12880 0 0 3 0x14200 bored crynlk 68791 431212 0 0 3 0x14200 bored crypto 91982 437776 0 0 3 0x40014200 acpi0 acpi0 32293 295508 0 0 3 0x40014200 idle1 12894 118379 0 0 3 0x14200 bored softnet 25045 44034 0 0 3 0x14200 bored systqmp 51565 335001 0 0 3 0x14200 bored systq 11280 250872 0 0 3 0x40014200 bored softclock 47657 65347 0 0 3 0x40014200 idle0 1 211393 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9525 6419K 6677K 78643K 11498 0 pcb 13 8K 8K 78643K 87 0 rtable 79 3K 9K 78643K 669 0 ifaddr 75 14K 16K 78643K 204 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1710 0 iov 0 0K 24K 78643K 308 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1535 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 167 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 791 0 sigio 0 0K 0K 78643K 6 0 proc 62 63K 95K 78643K 575 0 subproc 23 1K 2K 78643K 70 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 49 0 in_multi 56 3K 3K 78643K 182 0 ether_multi 1 0K 0K 78643K 14 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 271 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 132 56K 56K 78643K 3526 0 UVM aobj 30 2K 2K 78643K 32 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 63 0 NDP 13 0K 0K 78643K 38 0 temp 138 3870K 3937K 78643K 18407 0 kqueue 3 4K 18K 78643K 41 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 14 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 68 0 66 1 0 1 1 0 8 0 rtentry 112 115 0 87 2 0 2 2 0 8 0 unpcb 120 436 0 425 1 0 1 1 0 8 0 syncache 264 8 0 8 3 3 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 417 0 417 2 2 0 1 0 8 0 tcpcb 544 216 0 212 2 1 1 2 0 8 0 inpcb 296 735 0 728 7 5 2 2 0 8 1 rttmr 72 4 0 4 2 2 0 1 0 8 0 nd6 48 29 0 26 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 3 0 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 4 0 4 2 2 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 101 0 101 4 4 0 1 0 8 0 pfstitem 24 13 0 11 1 0 1 1 0 8 0 pfstkey 112 13 0 11 1 0 1 1 0 8 0 pfstate 328 13 0 11 2 1 1 2 0 8 0 pfrule 1360 50 0 49 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 433 0 319 13 1 12 13 0 8 0 art_table 32 434 0 319 2 0 2 2 0 8 0 art_node 16 114 0 91 1 0 1 1 0 8 0 sysvmsgpl 40 36 0 29 1 0 1 1 0 8 0 semapl 112 163 0 153 1 0 1 1 0 8 0 shmpl 112 29 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2571 0 1171 89 0 89 89 0 8 0 ffsino 272 2571 0 1171 97 2 95 95 0 8 0 nchpl 144 4040 0 2447 60 0 60 60 0 8 0 uvmvnodes 72 2865 0 0 53 0 53 53 0 8 0 vnodes 208 2865 0 0 151 0 151 151 0 8 0 namei 1024 12791 0 12791 5 4 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 1 2 1 1 1 0 8 0 pfiaddrpl 120 32 0 32 4 4 0 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 12680 0 12680 10 9 1 7 0 8 1 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 424 1001 0 970 4 0 4 4 0 8 0 futexpl 56 14060 0 14060 3 2 1 1 0 8 1 knotepl 112 151 0 134 2 1 1 2 0 8 0 kqueuepl 144 121 0 116 1 0 1 1 0 8 0 pipepl 304 577 0 568 5 3 2 2 0 8 1 fdescpl 496 985 0 970 3 0 3 3 0 8 0 filepl 152 6847 0 6758 9 4 5 6 0 8 1 lockfpl 104 376 0 375 1 0 1 1 0 8 0 lockfspl 48 154 0 153 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 28 0 17 1 0 1 1 0 8 0 ucredpl 96 572 0 563 1 0 1 1 0 8 0 zombiepl 144 971 0 970 3 2 1 1 0 8 0 processpl 992 1001 0 970 7 2 5 5 0 8 0 procpl 624 2557 0 2517 4 0 4 4 0 8 0 sosppl 128 7 0 7 4 4 0 1 0 8 0 sockpl 400 1246 0 1226 8 4 4 5 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 280 0 0 34 0 34 34 0 8 0 mtagpl 96 27 0 0 1 0 1 1 0 8 0 mbufpl 256 337 0 0 17 0 17 17 0 8 0 bufpl 280 5041 0 136 351 0 351 351 0 8 0 anonpl 16 116638 0 99374 106 21 85 87 0 124 14 amapchunkpl 152 5458 0 5310 17 9 8 11 0 158 0 amappl16 192 4742 0 3792 71 17 54 60 0 8 6 amappl15 184 10 0 9 1 0 1 1 0 8 0 amappl14 176 25 0 20 1 0 1 1 0 8 0 amappl13 168 247 0 243 1 0 1 1 0 8 0 amappl12 160 117 0 112 1 0 1 1 0 8 0 amappl11 152 65 0 49 1 0 1 1 0 8 0 amappl10 144 23 0 17 1 0 1 1 0 8 0 amappl9 136 735 0 734 1 0 1 1 0 8 0 amappl8 128 748 0 711 2 0 2 2 0 8 0 amappl7 120 140 0 126 1 0 1 1 0 8 0 amappl6 112 28 0 23 1 0 1 1 0 8 0 amappl5 104 1014 0 997 1 0 1 1 0 8 0 amappl4 96 738 0 704 1 0 1 1 0 8 0 amappl3 88 277 0 272 1 0 1 1 0 8 0 amappl2 80 6824 0 6761 2 0 2 2 0 8 0 amappl1 72 38678 0 38258 23 13 10 18 0 8 0 amappl 80 2850 0 2805 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 31 0 2 1 0 1 1 0 8 0 uaddrrnd 24 990 0 971 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 990 0 971 1 0 1 1 0 8 0 vmmpekpl 168 12842 0 12808 2 0 2 2 0 8 0 vmmpepl 168 135907 0 133886 164 59 105 131 0 357 9 vmsppl 368 989 0 971 2 0 2 2 0 8 0 pdppl 4096 1987 0 1946 9 3 6 6 0 8 0 pvpl 32 360909 0 340548 237 35 202 204 0 265 35 pmappl 232 989 0 971 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 295 0 18 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828da920) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828da920,2) 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(fffffd806f681190,fffffd806f681218,ffffffff825ad940,fffffd8068c7a600,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f681190,fffffd8068c7a600,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd8068c7a600,0,18) at route_input+0x489 sys/net/rtsock.c:572 rtm_addr(d,ffff800000b15a00) at rtm_addr+0x10b sys/net/rtsock.c:1751 rt_ifa_del(ffff800000b15a00,200404,ffff800000b15a40,0) at rt_ifa_del+0x3ed sys/net/route.c:1192 rt_ifa_dellocal(ffff800000b15a00) at rt_ifa_dellocal+0x149 sys/net/route.c:1290 in6_purgeaddr(ffff800000b15a00) at in6_purgeaddr+0x114 sys/netinet6/in6.c:922 in6_ifdetach(ffff800000b16800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000b16800) at if_detach+0x148 sys/net/if.c:1147 tun_clone_destroy(ffff800000b16800) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800021efea80) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ed6a0d8,7,fffffd807f7bf660,ffff800020e0a608) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8079f5ac00,ffff800020e0a608) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8079f5ac00,ffff800020e0a608) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8079f5ac00,ffff800020e0a608) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8079f5ac00,ffff800020e0a608) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e0a608) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e0a608,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e0a608,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e0a608,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e0a608) at userret+0x199 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffc6630, count: -24 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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 end of kernel end trace frame: 0xc0036cc5f0, count: -3