uvm_fault(0xffffffff828be398, 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(0xffffffff828be398, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020ee19a0, count: 0 ddb{1}> trace pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828cdee0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copyback(fffffd806f11f800,80,20,ffff800000ac5460,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd806f11f800,80,20,ffff800000ac5460,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ee1b40) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd8067fe7708,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd8067fe7708,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rt_ifa_del(ffff800000aa2200,800100,ffff800000aa2240,0) at rt_ifa_del+0x3bb sys/net/route.c:1190 in6_unlink_ifa(ffff800000aa2200,ffff800000ac6000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_purgeaddr(ffff800000aa2200) 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:1042 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800020ee2090) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e7f4008,7,fffffd807f7bf960,ffff800020ddd118) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80666c1738,ffff800020ddd118) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80666c1738,ffff800020ddd118) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80666c1738,ffff800020ddd118) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80666c1738,ffff800020ddd118) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddd118) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddd118,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddd118,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddd118,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddd118) at userret+0x199 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffffaf40, count: -22 ddb{1}> show registers rdi 0x7 rsi 0x7 rbp 0xffff800020ee18e0 rbx 0x6a94618d06905e93 rdx 0x10 rcx 0 rax 0 r8 0x2 r9 0x1 r10 0x676d6d1187e3e5b9 r11 0x59588660d5fe8b6b r12 0xffffffff828cdee0 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009980 rip 0xffffffff8215da71 pool_cache_get+0x1b1 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800020ee1880 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.0) pid=438127 stat=onproc flags process=a proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffff800020e0aaf8 process=0xffff800020df07d0 user=0xffff800020edd000, vmspace=0xfffffd807f000a10 estcpu=36, cpticks=2, pctcpu=0.18 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24617 130780 4845 0 3 0x82 nanosleep syz-executor.1 4845 10488 84712 0 3 0x82 thrsleep syz-fuzzer 4845 169210 84712 0 3 0x4000082 nanosleep syz-fuzzer 4845 33224 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 520662 84712 0 3 0x4000082 kqread syz-fuzzer 4845 399845 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 349402 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 299430 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 105724 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 390632 84712 0 3 0x4000082 thrsleep syz-fuzzer 4845 198801 84712 0 3 0x4000082 thrsleep syz-fuzzer 84712 284776 51367 0 3 0x10008a pause ksh 51367 180886 71499 0 3 0x92 select sshd 3761 77180 1 0 3 0x100083 ttyin getty 71499 23298 1 0 3 0x80 select sshd 67775 211615 37937 74 3 0x100092 bpf pflogd 37937 313007 1 0 3 0x80 netio pflogd 38299 127222 77820 73 3 0x100090 kqread syslogd 77820 465653 1 0 3 0x100082 netio syslogd 49748 360407 1 77 7 0x100090 dhclient 42148 320733 1 0 3 0x80 poll dhclient 43681 148795 0 0 3 0x14200 bored smr 91672 80072 0 0 3 0x14200 pgzero zerothread 19340 38520 0 0 3 0x14200 aiodoned aiodoned 92716 135839 0 0 3 0x14200 syncer update 23784 205431 0 0 3 0x14200 cleaner cleaner 22850 400556 0 0 3 0x14200 reaper reaper 41934 411425 0 0 3 0x14200 pgdaemon pagedaemon 37531 304101 0 0 3 0x14200 bored crynlk 30441 259180 0 0 3 0x14200 bored crypto 26762 93184 0 0 3 0x40014200 acpi0 acpi0 9892 35769 0 0 3 0x40014200 idle1 15392 199337 0 0 3 0x14200 bored softnet 23295 53576 0 0 2 0x14200 systqmp 9532 429794 0 0 3 0x14200 bored systq 24288 492336 0 0 3 0x40014200 bored softclock 20666 7505 0 0 3 0x40014200 idle0 1 185669 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 9497 6406K 6922K 78643K 10824 0 pcb 13 8K 8K 78643K 53 0 rtable 99 3K 3K 78643K 237 0 ifaddr 66 13K 14K 78643K 77 0 counters 43 33K 34K 78643K 45 0 ioctlops 0 0K 4K 78643K 1497 0 iov 0 0K 12K 78643K 26 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1282 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 28 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 208 0 proc 61 63K 95K 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 8 0 in_multi 48 2K 3K 78643K 74 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 211 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 118 38K 54K 78643K 1588 0 UVM aobj 14 2K 2K 78643K 15 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 10 0K 0K 78643K 17 0 temp 115 3864K 3930K 78643K 4736 0 kqueue 3 4K 22K 78643K 18 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 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 53 0 13 2 0 2 2 0 8 0 unpcb 120 340 0 330 1 0 1 1 0 8 0 syncache 264 8 0 8 2 1 1 1 0 8 1 tcpqe 32 151 0 151 1 1 0 1 0 8 0 tcpcb 544 205 0 201 1 0 1 1 0 8 0 inpcb 296 416 0 409 2 0 2 2 0 8 1 nd6 48 9 0 3 1 0 1 1 0 8 0 pfstscr 40 3 0 2 1 0 1 1 0 8 0 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 4 0 4 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 pfstitem 24 17 0 1 1 0 1 1 0 8 0 pfstkey 112 21 0 5 1 0 1 1 0 8 0 pfstate 328 18 0 3 2 0 2 2 0 8 0 pfrule 1360 25 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 206 0 4 13 0 13 13 0 8 0 art_table 32 207 0 4 2 0 2 2 0 8 0 art_node 16 52 0 13 1 0 1 1 0 8 0 sysvmsgpl 40 42 0 12 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 12 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1641 0 233 89 0 89 89 0 8 0 ffsino 272 1641 0 233 95 0 95 95 0 8 1 nchpl 144 2106 0 495 60 0 60 60 0 8 0 uvmvnodes 72 1734 0 0 32 0 32 32 0 8 0 vnodes 208 1734 0 0 92 0 92 92 0 8 0 namei 1024 5592 0 5592 1 0 1 1 0 8 1 percpumem 16 33 0 1 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 2 1 0 1 1 0 8 0 scxspl 192 6544 0 6544 8 1 7 7 0 8 7 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 424 423 0 393 4 0 4 4 0 8 0 futexpl 56 2924 0 2924 1 0 1 1 0 8 1 knotepl 112 123 0 106 2 0 2 2 0 8 1 kqueuepl 144 24 0 22 1 0 1 1 0 8 0 pipepl 304 94 0 85 2 0 2 2 0 8 1 fdescpl 496 408 0 393 3 0 3 3 0 8 0 filepl 152 2414 0 2325 5 0 5 5 0 8 1 lockfpl 104 54 0 53 1 0 1 1 0 8 0 lockfspl 48 22 0 21 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 96 178 0 168 1 0 1 1 0 8 0 zombiepl 144 394 0 392 1 0 1 1 0 8 0 processpl 992 423 0 392 5 0 5 5 0 8 0 procpl 624 813 0 773 4 0 4 4 0 8 0 sockpl 400 791 0 772 5 0 5 5 0 8 3 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 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 207 0 0 25 0 25 25 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 219 0 0 14 0 14 14 0 8 0 bufpl 280 3941 0 137 272 0 272 272 0 8 0 anonpl 16 52854 0 36592 67 1 66 66 0 124 0 amapchunkpl 152 2505 0 2361 20 0 20 20 0 158 13 amappl16 192 1694 0 818 45 0 45 45 0 8 1 amappl15 184 89 0 86 2 1 1 1 0 8 0 amappl14 176 28 0 22 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 16 0 12 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 92 0 87 1 0 1 1 0 8 0 amappl9 136 482 0 480 1 0 1 1 0 8 0 amappl8 128 447 0 415 2 0 2 2 0 8 0 amappl7 120 194 0 182 1 0 1 1 0 8 0 amappl6 112 25 0 21 1 0 1 1 0 8 0 amappl5 104 309 0 294 1 0 1 1 0 8 0 amappl4 96 491 0 460 1 0 1 1 0 8 0 amappl3 88 110 0 105 1 0 1 1 0 8 0 amappl2 80 2320 0 2256 2 0 2 2 0 8 0 amappl1 72 20428 0 19994 23 13 10 18 0 8 0 amappl 80 1072 0 1030 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 14 0 1 1 0 1 1 0 8 0 uaddrrnd 24 414 0 395 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 414 0 395 1 0 1 1 0 8 0 vmmpekpl 168 7107 0 7070 2 0 2 2 0 8 0 vmmpepl 168 58488 0 56534 122 7 115 118 0 357 20 vmsppl 368 413 0 395 2 0 2 2 0 8 0 pdppl 4096 835 0 794 6 0 6 6 0 8 0 pvpl 32 178358 0 159051 163 0 163 163 0 265 5 pmappl 232 413 0 395 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 267 0 3 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(ffffffff82789ff0) 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(ffffffff828c6fe8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c6fe8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828c6fe8,2) 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(ffff800020e17fc0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e17fc0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e17fc0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff828f5e1c,118,ffffffff8246de5c,41dc29) at tsleep+0x1cc sys/kern/kern_synch.c:155 doppoll(ffff800020ddc758,7f7ffffc3960,3,ffff800020e18158,0,ffff800020e18210) at doppoll+0x57e sys/kern/sys_generic.c:968 sys_poll(ffff800020ddc758,ffff800020e181c0,ffff800020e18210) at sys_poll+0xa6 syscall(ffff800020e18290) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e18290) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc3940, count: -13 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828cdee0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828cdee0,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_copyback(fffffd806f11f800,80,20,ffff800000ac5460,2) at m_copyback+0x4d7 m_get sys/kern/uipc_mbuf.c:250 [inline] m_copyback(fffffd806f11f800,80,20,ffff800000ac5460,2) at m_copyback+0x4d7 sys/kern/uipc_mbuf.c:790 rtm_msg1(2,ffff800020ee1b40) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_send(fffffd8067fe7708,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline] rtm_send(fffffd8067fe7708,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657 rt_ifa_del(ffff800000aa2200,800100,ffff800000aa2240,0) at rt_ifa_del+0x3bb sys/net/route.c:1190 in6_unlink_ifa(ffff800000aa2200,ffff800000ac6000) at in6_unlink_ifa+0x571 sys/netinet6/in6.c:943 in6_purgeaddr(ffff800000aa2200) 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:1042 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff800020ee2090) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd806e7f4008,7,fffffd807f7bf960,ffff800020ddd118) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80666c1738,ffff800020ddd118) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80666c1738,ffff800020ddd118) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614 fdrop(fffffd80666c1738,ffff800020ddd118) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80666c1738,ffff800020ddd118) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800020ddd118) at fdfree+0x101 sys/kern/kern_descrip.c:1195 exit1(ffff800020ddd118,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff800020ddd118,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff800020ddd118,19) at postsig+0x4ed sys/kern/kern_sig.c:1415 userret(ffff800020ddd118) at userret+0x199 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffffaf40, count: -22