uvm_fault(0xffffffff82802ec0, 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(0xffffffff82802ec0, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020ed51f0, count: 0 ddb{1}> trace pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82908e30,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000b18800,800100,ffff800000b18840,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000b18800,ffff800000ac6000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_purgeaddr(ffff800000b18800) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000ac6000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000ac6000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000ac6000) 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(ffff800020ed5680) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec7e348,7,fffffd807f7bf900,ffff800020e38130) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806682e998,ffff800020e38130) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806682e998,ffff800020e38130) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806682e998,ffff800020e38130) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806682e998,ffff800020e38130) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e38130) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e38130,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e38130,ffff800020ed5910,ffff800020ed5960) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800020ed59e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed59e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe66e0, count: -20 ddb{1}> show registers rdi 0x7 rsi 0x7 rbp 0xffff800020ed5130 rbx 0xb5956c76e1da7c16 rdx 0xffff800000b18840 rcx 0 rax 0 r8 0xffffffff8127005b refcnt_rele_wake+0x3b r9 0x5 r10 0x7cf5ced78cb076dc r11 0x38f696a827805ca3 r12 0xffffffff82908e30 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009b80 rip 0xffffffff81bf6761 pool_cache_get+0x1b1 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800020ed50d0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.0) pid=247253 stat=onproc flags process=1018 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e379e0,0xffff800020e09778 process=0xffff800023f72bd8 user=0xffff800020ed0000, vmspace=0xfffffd807f0008a0 estcpu=36, cpticks=11, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60355 2246 81808 0 2 0 syz-executor.1 60355 117667 81808 0 3 0x4000080 pipewr syz-executor.1 60355 423262 81808 0 3 0x4000080 pipewr syz-executor.1 25252 407547 0 0 3 0x14280 nfsidl nfsio 58224 511129 0 0 3 0x14280 nfsidl nfsio 60521 279490 0 0 3 0x14280 nfsidl nfsio 62729 8412 0 0 3 0x14280 nfsidl nfsio 78950 177696 0 0 3 0x14280 nfsidl nfsio 54154 278997 0 0 3 0x14280 nfsidl nfsio 56199 178096 0 0 3 0x14280 nfsidl nfsio 87706 161653 0 0 3 0x14280 nfsidl nfsio 27675 424780 0 0 3 0x14280 nfsidl nfsio 10091 439523 0 0 3 0x14280 nfsidl nfsio 27244 18595 0 0 3 0x14280 nfsidl nfsio 11893 276501 0 0 3 0x14280 nfsidl nfsio 89717 365264 0 0 3 0x14280 nfsidl nfsio 84364 309599 0 0 3 0x14280 nfsidl nfsio 31862 73665 0 0 3 0x14280 nfsidl nfsio 48868 428898 0 0 3 0x14280 nfsidl nfsio 65191 88983 0 0 3 0x14280 nfsidl nfsio 13616 83788 0 0 3 0x14280 nfsidl nfsio 66164 182634 0 0 3 0x14280 nfsidl nfsio 82280 263559 0 0 3 0x14280 nfsidl nfsio 19118 501464 0 0 3 0x14200 bored sosplice 81808 518329 13008 0 3 0x82 nanosleep syz-executor.1 13008 479494 79180 0 3 0x82 thrsleep syz-fuzzer 13008 136303 79180 0 3 0x4000082 nanosleep syz-fuzzer 13008 104445 79180 0 3 0x4000082 thrsleep syz-fuzzer 13008 38298 79180 0 3 0x4000082 thrsleep syz-fuzzer 13008 268772 79180 0 3 0x4000082 thrsleep syz-fuzzer 13008 404270 79180 0 2 0x4000002 syz-fuzzer 13008 144301 79180 0 3 0x4000082 thrsleep syz-fuzzer 13008 39518 79180 0 3 0x4000082 thrsleep syz-fuzzer 13008 50526 79180 0 2 0x4000002 syz-fuzzer 13008 63643 79180 0 7 0x4000002 syz-fuzzer 79180 221270 43347 0 3 0x10008a pause ksh 43347 481594 61285 0 3 0x92 select sshd 25039 440231 1 0 3 0x100083 ttyin getty 61285 388378 1 0 3 0x80 select sshd 182 400710 33588 74 3 0x100092 bpf pflogd 33588 151983 1 0 3 0x80 netio pflogd 72893 416877 42097 73 3 0x100090 kqread syslogd 42097 372281 1 0 3 0x100082 netio syslogd 70343 71647 1 77 2 0x100090 dhclient 88521 161510 1 0 3 0x80 poll dhclient 30110 240613 0 0 3 0x14200 bored smr 79187 42373 0 0 2 0x14200 zerothread 54970 218050 0 0 3 0x14200 aiodoned aiodoned 72130 242025 0 0 3 0x14200 syncer update 25825 498778 0 0 3 0x14200 cleaner cleaner 20510 242439 0 0 3 0x14200 reaper reaper 20679 165702 0 0 3 0x14200 pgdaemon pagedaemon 62221 461852 0 0 3 0x14200 bored crynlk 79897 455534 0 0 3 0x14200 bored crypto 61984 304746 0 0 3 0x40014200 acpi0 acpi0 68023 464503 0 0 3 0x40014200 idle1 86806 43841 0 0 3 0x14200 bored softnet 94362 76336 0 0 2 0x14200 systqmp 63153 480199 0 0 3 0x14200 bored systq 38722 166353 0 0 3 0x40014200 bored softclock 84289 240525 0 0 3 0x40014200 idle0 1 325863 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 9517 6424K 6990K 78643K 11292 0 pcb 13 8K 8K 78643K 67 0 rtable 109 6K 8K 78643K 547 0 ifaddr 72 14K 15K 78643K 142 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1975 0 iov 0 0K 16K 78643K 62 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1421 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 21 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 515 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 479 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 26 0 in_multi 38 2K 2K 78643K 163 0 ether_multi 1 0K 0K 78643K 11 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 219 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 23K 39K 78643K 2568 0 UVM aobj 20 4K 4K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 70 0 NDP 13 0K 0K 78643K 39 0 temp 109 3862K 3926K 78643K 7169 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 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 150 0 148 1 0 1 1 0 8 0 rtentry 112 100 0 62 2 0 2 2 0 8 0 unpcb 120 246 0 236 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpqe 32 673 0 673 1 1 0 1 0 8 0 tcpcb 544 140 0 136 1 0 1 1 0 8 0 inpcb 296 445 0 438 4 2 2 2 0 8 1 nd6 48 32 0 29 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 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 2 0 2 1 1 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 pfrke_plain 160 25 0 23 1 0 1 1 0 8 0 pfrktable 1344 46 0 41 1 0 1 1 0 8 0 pfstitem 24 13 0 5 1 0 1 1 0 8 0 pfstkey 112 13 0 5 1 0 1 1 0 8 0 pfstate 328 13 0 5 2 0 2 2 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 256 444 0 268 13 1 12 13 0 8 1 art_table 32 445 0 268 2 0 2 2 0 8 0 art_node 16 99 0 60 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 19 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2034 0 633 89 0 89 89 0 8 0 ffsino 272 2034 0 633 94 0 94 94 0 8 0 nchpl 144 2948 0 1359 60 0 60 60 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 uvmvnodes 72 2235 0 0 41 0 41 41 0 8 0 vnodes 208 2235 0 0 118 0 118 118 0 8 0 namei 1024 8588 0 8588 1 0 1 1 0 8 1 percpumem 16 37 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 22 0 16 1 0 1 1 0 8 0 scxspl 192 8929 0 8929 10 9 1 7 0 8 1 plimitpl 152 36 0 28 1 0 1 1 0 8 0 sigapl 424 751 0 699 6 0 6 6 0 8 0 futexpl 56 6791 0 6791 1 0 1 1 0 8 1 knotepl 112 71 0 58 1 0 1 1 0 8 0 kqueuepl 144 54 0 50 1 0 1 1 0 8 0 pipepl 304 141 0 134 2 1 1 2 0 8 0 fdescpl 496 715 0 699 3 0 3 3 0 8 0 filepl 152 4326 0 4239 5 0 5 5 0 8 1 lockfpl 104 84 0 83 1 0 1 1 0 8 0 lockfspl 48 30 0 29 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 436 0 426 1 0 1 1 0 8 0 zombiepl 144 700 0 699 2 1 1 1 0 8 0 processpl 992 751 0 699 8 1 7 7 0 8 0 procpl 624 1805 0 1742 6 0 6 6 0 8 1 sosppl 128 6 0 6 3 2 1 1 0 8 1 sockpl 400 847 0 828 6 3 3 4 0 8 1 mcl64k 65536 9 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 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 195 0 0 24 0 24 24 0 8 0 mtagpl 96 32 0 0 1 0 1 1 0 8 0 mbufpl 256 304 0 0 18 0 18 18 0 8 0 bufpl 280 4459 0 142 309 0 309 309 0 8 0 anonpl 16 70954 0 53962 71 2 69 69 0 124 0 amapchunkpl 152 4182 0 4012 22 7 15 21 0 158 7 amappl16 192 2649 0 1736 47 1 46 46 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 272 0 267 1 0 1 1 0 8 0 amappl13 168 262 0 257 1 0 1 1 0 8 0 amappl12 160 239 0 234 1 0 1 1 0 8 0 amappl11 152 308 0 292 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 361 0 325 2 0 2 2 0 8 0 amappl7 120 121 0 108 1 0 1 1 0 8 0 amappl6 112 26 0 21 1 0 1 1 0 8 0 amappl5 104 373 0 355 1 0 1 1 0 8 0 amappl4 96 742 0 708 1 0 1 1 0 8 0 amappl3 88 363 0 356 1 0 1 1 0 8 0 amappl2 80 5017 0 4938 2 0 2 2 0 8 0 amappl1 72 24808 0 24350 23 13 10 18 0 8 0 amappl 80 2043 0 1993 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 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 715 0 699 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 715 0 699 1 0 1 1 0 8 0 vmmpekpl 168 9291 0 9252 2 0 2 2 0 8 0 vmmpepl 168 92923 0 90787 119 23 96 114 0 357 3 vmsppl 368 714 0 699 2 0 2 2 0 8 0 pdppl 4096 1437 0 1398 7 1 6 6 0 8 0 pvpl 32 234955 0 214682 174 4 170 170 0 265 6 pmappl 232 714 0 699 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 8 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(ffffffff826f0ff0) 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_pc() at __sanitizer_cov_trace_pc+0x6f sys/dev/kcov.c:88 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff829236d0) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829236d0) at __mp_lock+0x12e sys/kern/kern_lock.c:147 syscall(ffff800020ea2a10) at syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800020ea2a10) at syscall+0x400 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc0002b9e98, count: -9 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82908e30) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82908e30,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 rt_ifa_del(ffff800000b18800,800100,ffff800000b18840,0) at rt_ifa_del+0xa1 sys/net/route.c:1163 in6_unlink_ifa(ffff800000b18800,ffff800000ac6000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_purgeaddr(ffff800000b18800) at in6_purgeaddr+0x1d7 sys/netinet6/in6.c:929 in6_ifdetach(ffff800000ac6000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:429 if_detach(ffff800000ac6000) at if_detach+0x148 sys/net/if.c:1145 tun_clone_destroy(ffff800000ac6000) 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(ffff800020ed5680) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806ec7e348,7,fffffd807f7bf900,ffff800020e38130) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd806682e998,ffff800020e38130) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd806682e998,ffff800020e38130) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd806682e998,ffff800020e38130) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd806682e998,ffff800020e38130) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020e38130) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020e38130,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197 sys_exit(ffff800020e38130,ffff800020ed5910,ffff800020ed5960) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800020ed59e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed59e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe66e0, count: -20