uvm_fault(0xffffffff828805c8, 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(0xffffffff828805c8, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff80002310fd60, count: 0 ddb{0}> trace pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d8c68,2) 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,ffffffff826c47f0,fffffd80786bf500,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f681190,fffffd80786bf500,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd80786bf500,0,18) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd8068504a88,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rt_ifa_del(ffff800000aa2200,200404,ffff800000aa2240,0) at rt_ifa_del+0x3bb sys/net/route.c:1190 rt_ifa_dellocal(ffff800000aa2200) at rt_ifa_dellocal+0x149 sys/net/route.c:1290 in6_purgeaddr(ffff800000aa2200) at in6_purgeaddr+0x114 sys/netinet6/in6.c:922 in6_ifdetach(ffff800000af5000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000af5000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000af5000) 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(ffff8000231104f0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd80785ba008,7,fffffd807f7bf900,ffff800020e04d58) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067deed28,ffff800020e04d58) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067deed28,ffff800020e04d58) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067deed28,ffff800020e04d58) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067deed28,ffff800020e04d58) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e04d58) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e04d58,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e04d58,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e04d58,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e04d58) at userret+0x199 sys/kern/kern_sig.c:1872 syscall(ffff800023110970) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800023110970) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff02b0, count: -25 ddb{0}> show registers rdi 0x7 rsi 0x7 rbp 0xffff80002310fca0 rbx 0x2a0f182023253322 rdx 0xffff800020e04d58 rcx 0 rax 0 r8 0xffffffff81069915 sbappendaddr+0x1c5 r9 0x5 r10 0x2 r11 0x417d94dca1378ff r12 0xffffffff828d8c68 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008e00 rip 0xffffffff81f1ea81 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80002310fc40 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (syz-executor.1) pid=514468 stat=onproc flags process=a proc=2000 pri=32, usrpri=55, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc9c8,0xffff800020e039e8 process=0xffff800020df03f0 user=0xffff80002310b000, vmspace=0xfffffd807efff5c0 estcpu=36, cpticks=2, pctcpu=0.18 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10269 59743 0 0 3 0x14200 bored sosplice 79695 338849 69781 0 2 0x2 syz-executor.0 69781 500743 57671 0 3 0x82 thrsleep syz-fuzzer 69781 392059 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 367474 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 464573 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 280686 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 163568 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 77179 57671 0 3 0x4000082 kqread syz-fuzzer 69781 258894 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 113542 57671 0 3 0x4000082 thrsleep syz-fuzzer 69781 354860 57671 0 3 0x4000082 thrsleep syz-fuzzer 57671 125294 32454 0 3 0x10008a pause ksh 32454 423368 29518 0 3 0x92 select sshd 32552 282605 1 0 3 0x100083 ttyin getty 29518 33711 1 0 3 0x80 select sshd 82006 520033 82532 74 3 0x100092 bpf pflogd 82532 430404 1 0 3 0x80 netio pflogd 94159 20950 8865 73 3 0x100090 kqread syslogd 8865 81990 1 0 3 0x100082 netio syslogd 66867 34160 1 77 2 0x100090 dhclient 52548 89334 1 0 3 0x80 poll dhclient 24053 29345 0 0 3 0x14200 bored smr 27541 83057 0 0 3 0x14200 pgzero zerothread 79607 283479 0 0 3 0x14200 aiodoned aiodoned 65444 420084 0 0 3 0x14200 syncer update 37408 301356 0 0 3 0x14200 cleaner cleaner 2463 338832 0 0 3 0x14200 reaper reaper 18143 500520 0 0 3 0x14200 pgdaemon pagedaemon 40376 338323 0 0 3 0x14200 bored crynlk 82941 469696 0 0 3 0x14200 bored crypto 96723 227271 0 0 3 0x40014200 acpi0 acpi0 2622 497788 0 0 3 0x40014200 idle1 78024 280289 0 0 3 0x14200 bored softnet 73060 206723 0 0 2 0x14200 systqmp 20811 471119 0 0 3 0x14200 bored systq 35530 303613 0 0 3 0x40014200 bored softclock 42368 314649 0 0 3 0x40014200 idle0 1 394546 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 9509 6423K 6808K 78643K 10997 0 pcb 15 8K 8K 78643K 95 0 rtable 100 7K 8K 78643K 408 0 ifaddr 71 14K 14K 78643K 111 0 sysctl 2 0K 0K 78643K 2 0 counters 45 34K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1527 0 iov 0 0K 12K 78643K 45 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1320 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 2K 78643K 62 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 279 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 83K 78643K 459 0 subproc 23 1K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 17 0 in_multi 28 1K 2K 78643K 119 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 4 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 225 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 116 38K 54K 78643K 1846 0 UVM aobj 20 2K 2K 78643K 20 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 26 0 temp 96 3863K 3932K 78643K 10851 0 kqueue 3 4K 19K 78643K 28 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 87 0 55 2 0 2 2 0 8 0 unpcb 120 492 0 479 1 0 1 1 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 tcpqe 32 120 0 120 1 1 0 1 0 8 0 tcpcb 544 90 0 86 1 0 1 1 0 8 0 inpcb 296 560 0 549 2 0 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 23 0 22 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 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 44 0 36 1 0 1 1 0 8 0 pfstitem 24 34 0 3 1 0 1 1 0 8 0 pfstkey 112 34 0 3 1 0 1 1 0 8 0 pfstate 328 33 0 2 3 0 3 3 0 8 0 pfsrctr 152 30 0 25 1 0 1 1 0 8 0 pfrule 1360 33 0 24 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 322 0 165 14 0 14 14 0 8 3 art_table 32 323 0 165 2 0 2 2 0 8 0 art_node 16 86 0 52 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 46 0 36 1 0 1 1 0 8 0 shmpl 112 17 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1746 0 340 89 0 89 89 0 8 0 ffsino 272 1746 0 340 95 0 95 95 0 8 1 nchpl 144 2325 0 714 60 0 60 60 0 8 0 uvmvnodes 72 1865 0 0 34 0 34 34 0 8 0 vnodes 208 1865 0 0 99 0 99 99 0 8 0 namei 1024 6315 0 6315 1 0 1 1 0 8 1 percpumem 16 34 0 1 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 16 0 10 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6890 0 6890 8 3 5 7 0 8 5 plimitpl 152 30 0 22 1 0 1 1 0 8 0 sigapl 424 495 0 463 4 0 4 4 0 8 0 futexpl 56 4749 0 4749 1 0 1 1 0 8 1 knotepl 112 87 0 70 1 0 1 1 0 8 0 kqueuepl 144 54 0 52 1 0 1 1 0 8 0 pipepl 304 111 0 102 2 0 2 2 0 8 1 fdescpl 496 479 0 463 3 0 3 3 0 8 0 filepl 152 3120 0 3019 5 0 5 5 0 8 1 lockfpl 104 70 0 67 1 0 1 1 0 8 0 lockfspl 48 27 0 25 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 170 0 161 1 0 1 1 0 8 0 zombiepl 144 465 0 463 1 0 1 1 0 8 0 processpl 992 495 0 463 5 0 5 5 0 8 0 procpl 624 1077 0 1036 4 0 4 4 0 8 0 sosppl 128 7 0 7 1 0 1 1 0 8 1 sockpl 400 1110 0 1084 4 0 4 4 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 188 0 0 23 0 23 23 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 571 0 0 35 0 35 35 0 8 0 bufpl 280 3869 0 133 267 0 267 267 0 8 0 anonpl 16 58827 0 41798 70 1 69 69 0 124 0 amapchunkpl 152 2966 0 2810 25 5 20 20 0 158 12 amappl16 192 1855 0 937 47 0 47 47 0 8 1 amappl15 184 246 0 243 2 1 1 1 0 8 0 amappl14 176 25 0 21 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 11 0 9 2 1 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 265 0 256 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 320 0 298 1 0 1 1 0 8 0 amappl7 120 119 0 107 1 0 1 1 0 8 0 amappl6 112 22 0 21 1 0 1 1 0 8 0 amappl5 104 383 0 365 1 0 1 1 0 8 0 amappl4 96 495 0 468 1 0 1 1 0 8 0 amappl3 88 127 0 122 1 0 1 1 0 8 0 amappl2 80 3144 0 3072 2 0 2 2 0 8 0 amappl1 72 20476 0 20020 23 13 10 18 0 8 0 amappl 80 1329 0 1280 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 19 0 0 1 0 1 1 0 8 0 uaddrrnd 24 483 0 465 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 483 0 465 1 0 1 1 0 8 0 vmmpekpl 168 7940 0 7902 2 0 2 2 0 8 0 vmmpepl 168 65740 0 63649 116 12 104 112 0 357 13 vmsppl 368 482 0 465 2 0 2 2 0 8 0 pdppl 4096 973 0 932 6 0 6 6 0 8 0 pvpl 32 193963 0 173782 169 0 169 169 0 265 5 pmappl 232 482 0 465 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 288 0 3 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828d8c68) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828d8c68,2) 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,ffffffff826c47f0,fffffd80786bf500,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804 rtm_sendup(fffffd806f681190,fffffd80786bf500,0) at rtm_sendup+0xef sys/net/rtsock.c:594 route_input(fffffd80786bf500,0,18) at route_input+0x489 sys/net/rtsock.c:572 rtm_send(fffffd8068504a88,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659 rt_ifa_del(ffff800000aa2200,200404,ffff800000aa2240,0) at rt_ifa_del+0x3bb sys/net/route.c:1190 rt_ifa_dellocal(ffff800000aa2200) at rt_ifa_dellocal+0x149 sys/net/route.c:1290 in6_purgeaddr(ffff800000aa2200) at in6_purgeaddr+0x114 sys/netinet6/in6.c:922 in6_ifdetach(ffff800000af5000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000af5000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000af5000) 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(ffff8000231104f0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd80785ba008,7,fffffd807f7bf900,ffff800020e04d58) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067deed28,ffff800020e04d58) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067deed28,ffff800020e04d58) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067deed28,ffff800020e04d58) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067deed28,ffff800020e04d58) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e04d58) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e04d58,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020e04d58,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020e04d58,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020e04d58) at userret+0x199 sys/kern/kern_sig.c:1872 syscall(ffff800023110970) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff800023110970) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff02b0, count: -25 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 __sanitizer_cov_trace_cmp4(ffffffff828f5bd8,ffffffff828f5bd8) at __sanitizer_cov_trace_cmp4 __mp_acquire_count(ffffffff828f5bd8,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff8000230f9a08,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 cond_wait(ffff8000230f9a88,ffffffff823f8c11) at cond_wait+0x76 sys/kern/kern_synch.c:907 smr_barrier_impl(0) at smr_barrier_impl+0xf9 sys/kern/kern_smr.c:271 tun_clone_destroy(ffff800000b27000) at tun_clone_destroy+0x136 sys/net/if_tun.c:312 tun_dev_close(828a6,42) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff8000230f9bf0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807b40ab78,42,fffffd807f7bf900,ffff800020e03018) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd8067dee148,ffff800020e03018) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8067dee148,ffff800020e03018) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd8067dee148,ffff800020e03018) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd8067dee148,ffff800020e03018) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e03018) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e03018,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e03018,ffff8000230f9e80,ffff8000230f9ed0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000230f9f50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230f9f50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff1810, count: -21