uvm_fault(0xffffffff828805c8, 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(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: 0xffff800020ec4610, count: 0 ddb{1}> 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_copyback(fffffd8069e47d00,80,20,ffff800000afcf00,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd8069e47d00,80,20,ffff800000afcf00,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ec47b0) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd80667dc078,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd80667dc078,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rtdeletemsg(fffffd80667dc078,ffff800000b03000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000b00200) at rt_ifa_purge+0x104 sys/net/route.c:1320 in6_unlink_ifa(ffff800000b00200,ffff800000b03000) at in6_unlink_ifa+0x580 sys/netinet6/in6.c:948 in6_purgeaddr(ffff800000b00200) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000b03000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000b03000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000b03000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020ec4d20) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807eb84008,7,fffffd807f7bf900,ffff800020ea2d60) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80667d69a0,ffff800020ea2d60) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80667d69a0,ffff800020ea2d60) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80667d69a0,ffff800020ea2d60) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80667d69a0,ffff800020ea2d60) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ea2d60) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ea2d60,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020ea2d60,ffff800020ec4fb0,ffff800020ec5000) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800020ec5080) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ec5080) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca740, count: -23 ddb{1}> show registers rdi 0x7 rsi 0x7 rbp 0xffff800020ec4550 rbx 0x4159759329a8295f rdx 0x10 rcx 0 rax 0 r8 0x2 r9 0x5 r10 0x954c226f3d8fcff1 r11 0xedb5b20f4e0abd3d r12 0xffffffff828d8c68 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f008c00 rip 0xffffffff81f1ea81 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020ec44f0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.0) pid=402113 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea2880,0xffffffff828b51a0 process=0xffff8000230f2038 user=0xffff800020ec0000, vmspace=0xfffffd806e8e65c8 estcpu=36, cpticks=14, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82666 94284 0 0 3 0x14280 nfsidl nfsio 41248 325581 0 0 3 0x14280 nfsidl nfsio 75333 417958 0 0 3 0x14280 nfsidl nfsio 47883 68817 0 0 3 0x14280 nfsidl nfsio 29713 163075 0 0 3 0x14280 nfsidl nfsio 24362 180755 0 0 3 0x14280 nfsidl nfsio 77106 158611 0 0 3 0x14280 nfsidl nfsio 47431 248478 0 0 3 0x14280 nfsidl nfsio 36975 70293 0 0 3 0x14280 nfsidl nfsio 79380 192090 0 0 3 0x14280 nfsidl nfsio 73352 329925 0 0 3 0x14280 nfsidl nfsio 13173 250598 0 0 3 0x14280 nfsidl nfsio 35760 506114 0 0 3 0x14280 nfsidl nfsio 22582 304520 0 0 3 0x14280 nfsidl nfsio 29494 242183 0 0 3 0x14280 nfsidl nfsio 50423 414908 0 0 3 0x14280 nfsidl nfsio 93891 10301 0 0 3 0x14280 nfsidl nfsio 38265 47275 0 0 3 0x14280 nfsidl nfsio 75602 173759 0 0 3 0x14280 nfsidl nfsio 35749 440910 0 0 3 0x14280 nfsidl nfsio 68922 289271 0 0 3 0x14200 bored sosplice 25600 317954 65833 0 3 0x82 piperd syz-executor.1 65833 401352 19597 0 3 0x82 thrsleep syz-fuzzer 65833 466483 19597 0 3 0x4000082 nanosleep syz-fuzzer 65833 333524 19597 0 3 0x4000082 thrsleep syz-fuzzer 65833 355391 19597 0 3 0x4000082 thrsleep syz-fuzzer 65833 273659 19597 0 7 0x4000002 syz-fuzzer 65833 178650 19597 0 3 0x4000082 kqread syz-fuzzer 65833 421572 19597 0 3 0x4000082 thrsleep syz-fuzzer 65833 394978 19597 0 3 0x4000082 thrsleep syz-fuzzer 65833 509524 19597 0 3 0x4000082 thrsleep syz-fuzzer 65833 444916 19597 0 3 0x4000082 thrsleep syz-fuzzer 19597 179234 10336 0 3 0x10008a pause ksh 10336 141256 42961 0 3 0x92 select sshd 71153 11672 1 0 3 0x100083 ttyin getty 42961 311422 1 0 3 0x80 select sshd 85330 192008 98045 74 3 0x100092 bpf pflogd 98045 297562 1 0 3 0x80 netio pflogd 19891 256720 34012 73 3 0x100090 kqread syslogd 34012 323866 1 0 3 0x100082 netio syslogd 26603 3876 1 77 2 0x100090 dhclient 73198 21880 1 0 3 0x80 poll dhclient 32296 430461 0 0 3 0x14200 bored smr 77659 365733 0 0 3 0x14200 pgzero zerothread 97402 466504 0 0 3 0x14200 aiodoned aiodoned 89951 320281 0 0 3 0x14200 syncer update 62108 193127 0 0 3 0x14200 cleaner cleaner 70337 160267 0 0 3 0x14200 reaper reaper 77694 149312 0 0 3 0x14200 pgdaemon pagedaemon 7533 238367 0 0 3 0x14200 bored crynlk 4509 104544 0 0 3 0x14200 bored crypto 13673 122667 0 0 3 0x40014200 acpi0 acpi0 54027 214207 0 0 3 0x40014200 idle1 95689 279867 0 0 3 0x14200 bored softnet 18176 416153 0 0 3 0x14200 bored systqmp 79997 144862 0 0 3 0x14200 bored systq 11696 308994 0 0 3 0x40014200 bored softclock 92732 324546 0 0 3 0x40014200 idle0 1 287406 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9518 6426K 6809K 78643K 11220 0 pcb 13 8K 8K 78643K 96 0 rtable 97 4K 8K 78643K 493 0 ifaddr 71 14K 17K 78643K 172 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1535 0 iov 0 0K 24K 78643K 60 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1361 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 52 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 368 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 83K 78643K 516 0 subproc 23 1K 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 148 0 in_multi 47 2K 3K 78643K 169 0 ether_multi 1 0K 0K 78643K 13 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 240 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 125 55K 55K 78643K 2132 0 UVM aobj 13 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 64 0 NDP 12 0K 0K 78643K 36 0 temp 115 3862K 3926K 78643K 6121 0 kqueue 3 4K 8K 78643K 12 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 10 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 49 0 47 1 0 1 1 0 8 0 rtentry 112 70 0 33 2 0 2 2 0 8 0 unpcb 120 157 0 147 1 0 1 1 0 8 0 syncache 264 13 0 13 4 3 1 1 0 8 1 tcpqe 32 1108 0 1108 2 2 0 1 0 8 0 tcpcb 544 167 0 161 1 0 1 1 0 8 0 inpcb 296 550 0 541 5 3 2 2 0 8 1 rttmr 72 2 0 1 1 0 1 1 0 8 0 nd6 48 18 0 13 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 92 0 92 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 60 0 60 3 2 1 1 0 8 1 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 20 0 13 1 0 1 1 0 8 0 pfstkey 112 20 0 13 1 0 1 1 0 8 0 pfstate 328 20 0 13 2 0 2 2 0 8 1 pfrule 1360 39 0 27 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 262 0 100 14 0 14 14 0 8 2 art_table 32 263 0 100 2 0 2 2 0 8 0 art_node 16 69 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 18 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 49 0 39 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1874 0 468 90 1 89 89 0 8 0 ffsino 272 1874 0 468 97 2 95 95 0 8 0 nchpl 144 2563 0 975 60 0 60 60 0 8 0 uvmvnodes 72 2018 0 0 37 0 37 37 0 8 0 vnodes 208 2018 0 0 107 0 107 107 0 8 0 namei 1024 7239 0 7239 4 3 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 5 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 18 0 18 3 2 1 1 0 8 1 scxspl 192 8092 0 8092 11 10 1 6 0 8 1 plimitpl 152 26 0 18 1 0 1 1 0 8 0 sigapl 424 601 0 550 6 0 6 6 0 8 0 futexpl 56 6352 0 6352 2 1 1 1 0 8 1 knotepl 112 82 0 69 1 0 1 1 0 8 0 kqueuepl 144 255 0 253 1 0 1 1 0 8 0 pipepl 304 117 0 110 2 1 1 2 0 8 0 fdescpl 496 565 0 550 3 0 3 3 0 8 0 filepl 152 3431 0 3346 6 1 5 5 0 8 1 lockfpl 104 91 0 90 1 0 1 1 0 8 0 lockfspl 48 32 0 31 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 221 0 212 1 0 1 1 0 8 0 zombiepl 144 551 0 550 3 2 1 1 0 8 0 processpl 992 601 0 550 8 1 7 7 0 8 0 procpl 624 1316 0 1256 6 0 6 6 0 8 1 sosppl 128 14 0 13 2 1 1 1 0 8 0 sockpl 400 757 0 736 9 5 4 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 226 0 0 28 0 28 28 0 8 0 mtagpl 96 21 0 0 1 0 1 1 0 8 0 mbufpl 256 304 0 0 17 0 17 17 0 8 0 bufpl 280 4293 0 134 298 0 298 298 0 8 0 anonpl 16 70915 0 58561 74 3 71 73 0 124 0 amapchunkpl 152 3420 0 3267 20 12 8 20 0 158 0 amappl16 192 2550 0 1608 61 12 49 59 0 8 1 amappl15 184 61 0 61 2 2 0 1 0 8 0 amappl14 176 285 0 279 1 0 1 1 0 8 0 amappl13 168 35 0 32 1 0 1 1 0 8 0 amappl12 160 8 0 7 2 1 1 1 0 8 0 amappl11 152 205 0 189 1 0 1 1 0 8 0 amappl10 144 80 0 74 1 0 1 1 0 8 0 amappl9 136 397 0 395 1 0 1 1 0 8 0 amappl8 128 365 0 334 2 0 2 2 0 8 0 amappl7 120 127 0 112 1 0 1 1 0 8 0 amappl6 112 22 0 18 1 0 1 1 0 8 0 amappl5 104 315 0 300 1 0 1 1 0 8 0 amappl4 96 646 0 616 1 0 1 1 0 8 0 amappl3 88 376 0 370 1 0 1 1 0 8 0 amappl2 80 3580 0 3512 2 0 2 2 0 8 0 amappl1 72 22013 0 21564 23 13 10 18 0 8 0 amappl 80 1561 0 1514 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 570 0 552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 570 0 552 1 0 1 1 0 8 0 vmmpekpl 168 8293 0 8247 3 0 3 3 0 8 0 vmmpepl 168 76445 0 74380 154 43 111 127 0 357 18 vmsppl 368 569 0 552 2 0 2 2 0 8 0 pdppl 4096 1147 0 1107 7 1 6 6 0 8 0 pvpl 32 218691 0 203189 185 15 170 177 0 265 4 pmappl 232 569 0 552 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 286 0 14 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(ffffffff82701ff0) 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+0x6b sys/dev/kcov.c:137 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0xc0037e0aa0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> 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_copyback(fffffd8069e47d00,80,20,ffff800000afcf00,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd8069e47d00,80,20,ffff800000afcf00,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ec47b0) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd80667dc078,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd80667dc078,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rtdeletemsg(fffffd80667dc078,ffff800000b03000,0) at rtdeletemsg+0x199 sys/net/route.c:682 rt_ifa_purge(ffff800000b00200) at rt_ifa_purge+0x104 sys/net/route.c:1320 in6_unlink_ifa(ffff800000b00200,ffff800000b03000) at in6_unlink_ifa+0x580 sys/netinet6/in6.c:948 in6_purgeaddr(ffff800000b00200) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000b03000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000b03000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000b03000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480 spec_close(ffff800020ec4d20) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd807eb84008,7,fffffd807f7bf900,ffff800020ea2d60) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80667d69a0,ffff800020ea2d60) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80667d69a0,ffff800020ea2d60) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80667d69a0,ffff800020ea2d60) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80667d69a0,ffff800020ea2d60) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ea2d60) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ea2d60,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020ea2d60,ffff800020ec4fb0,ffff800020ec5000) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800020ec5080) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ec5080) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca740, count: -23