load: 4.35 not a controlling termkernel: protection fault trap, code=0 Stopped at pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82b66738,ffff800000be9000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000be9490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000c99d90,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:487 pfioctl(4900,cd60441a,ffff800000bf0000,3,ffff8000212102b0) at pfioctl+0x8d37 pf_addr_setup sys/net/pf_ioctl.c:894 [inline] pfioctl(4900,cd60441a,ffff800000bf0000,3,ffff8000212102b0) at pfioctl+0x8d37 sys/net/pf_ioctl.c:1653 VOP_IOCTL(fffffd806f680728,cd60441a,ffff800000bf0000,3,fffffd807f7d76c0,ffff8000212102b0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807c804d30,cd60441a,ffff800000bf0000,ffff8000212102b0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000212102b0,ffff800023e6e778,ffff800023e6e7d0) at sys_ioctl+0x4a2 syscall(ffff800023e6e840) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023e6e840) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a1e56c1080, count: -9 ddb{0}> show registers rdi 0xffff800024a89000 rsi 0x15a9 __ALIGN_SIZE+0x5a9 rbp 0xffff800023e6e250 rbx 0xffffffff82b66738 pf_anchors rdx 0xffff800024a89000 rcx 0x15a8 __ALIGN_SIZE+0x5a8 rax 0xffffffff8225b6fb pf_anchor_global_RB_REMOVE+0x2b r8 0x400 r9 0x8080808080808080 r10 0xc6e6ddeade0fd5aa r11 0xfdadcefe9d39bbed r12 0xfa9268d18d539df9 r13 0xffffffff82b66740 pf_main_anchor r14 0xffff800000be9000 r15 0xdeaf007fdeafbead rip 0xffffffff8225b728 pf_anchor_global_RB_REMOVE+0x58 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800023e6e200 ss 0x10 pf_anchor_global_RB_REMOVE+0x58: movq 0(%r12),%rbx ddb{0}> show proc PROC (syz-executor.1) pid=460718 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffef268,0xffff800021230fd8 process=0xffff8000ffffb1e8 user=0xffff800023e69000, vmspace=0xfffffd806788e5c0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 80565 409544 43379 0 2 0 syz-executor.5 80565 341851 43379 0 3 0x4000080 rest syz-executor.5 93763 504177 76981 0 2 0 syz-executor.1 *93763 460718 76981 0 7 0x4000000 syz-executor.1 11026 229454 91875 0 2 0 syz-executor.6 11026 313238 91875 0 3 0x4000080 fsleep syz-executor.6 87900 144663 30962 0 2 0 syz-executor.3 87900 416321 30962 0 3 0x4000080 fsleep syz-executor.3 95266 80510 90006 0 3 0x80 nanoslp syz-executor.7 95266 121997 90006 0 3 0x4000080 kqread syz-executor.7 95266 157447 90006 0 3 0x4000080 fsleep syz-executor.7 95266 168126 90006 0 3 0x4000080 fsleep syz-executor.7 98166 266797 56257 0 3 0x80 nanoslp syz-executor.4 98166 194596 56257 0 3 0x4000080 fsleep syz-executor.4 98166 511130 56257 0 3 0x4000080 netio syz-executor.4 38175 193379 34911 0 3 0x82 piperd syz-executor.0 91875 482910 34911 0 3 0x82 nanoslp syz-executor.6 76981 231631 34911 0 3 0x82 nanoslp syz-executor.1 56257 471823 34911 0 3 0x82 nanoslp syz-executor.4 53412 47034 0 0 3 0x14200 acct acct 90006 127918 34911 0 3 0x82 nanoslp syz-executor.7 24475 5040 34911 0 3 0x82 piperd syz-executor.2 43379 507471 34911 0 3 0x82 nanoslp syz-executor.5 30962 422728 34911 0 3 0x82 nanoslp syz-executor.3 19226 157977 0 0 3 0x14280 nfsidl nfsio 21792 413849 0 0 3 0x14280 nfsidl nfsio 61737 172586 0 0 3 0x14280 nfsidl nfsio 34085 374581 0 0 3 0x14280 nfsidl nfsio 38696 113661 0 0 3 0x14280 nfsidl nfsio 4960 498654 0 0 3 0x14280 nfsidl nfsio 53204 450589 0 0 3 0x14280 nfsidl nfsio 8728 391053 0 0 3 0x14280 nfsidl nfsio 99160 91101 0 0 3 0x14280 nfsidl nfsio 92394 204044 0 0 3 0x14280 nfsidl nfsio 63676 385520 0 0 3 0x14280 nfsidl nfsio 49210 45418 0 0 3 0x14280 nfsidl nfsio 27513 69351 0 0 3 0x14280 nfsidl nfsio 16903 140755 0 0 3 0x14280 nfsidl nfsio 20557 386834 0 0 3 0x14280 nfsidl nfsio 51665 360150 0 0 3 0x14280 nfsidl nfsio 82326 290335 0 0 3 0x14280 nfsidl nfsio 33689 163248 0 0 3 0x14280 nfsidl nfsio 88040 154745 0 0 3 0x14280 nfsidl nfsio 42449 253911 0 0 3 0x14280 nfsidl nfsio 99346 266018 0 0 3 0x14200 bored sosplice 34911 403026 60397 0 3 0x82 thrsleep syz-fuzzer 34911 334214 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 364 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 353601 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 57066 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 34562 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 47413 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 148049 60397 0 3 0x4000082 thrsleep syz-fuzzer 34911 480635 60397 0 3 0x4000082 kqread syz-fuzzer 60397 24901 23871 0 3 0x10008a sigsusp ksh 23871 380553 54628 0 3 0x9a kqread sshd 25670 240291 1 0 3 0x100083 ttyin getty 54628 209181 1 0 3 0x88 kqread sshd 20213 458743 86190 74 3 0x1100092 bpf pflogd 86190 414347 1 0 3 0x80 netio pflogd 87071 404301 8597 73 3 0x1100090 kqread syslogd 8597 488153 1 0 3 0x100082 netio syslogd 57903 512815 1 0 3 0x100080 kqread resolvd 16522 363722 59302 77 3 0x100092 kqread dhcpleased 75261 119005 59302 77 3 0x100092 kqread dhcpleased 59302 186625 1 0 3 0x80 kqread dhcpleased 33623 503295 0 0 3 0x14200 bored smr 7596 268644 0 0 2 0x14200 zerothread 44359 82731 0 0 3 0x14200 aiodoned aiodoned 28115 193651 0 0 3 0x14200 syncer update 46751 401380 0 0 3 0x14200 cleaner cleaner 55772 264698 0 0 3 0x14200 reaper reaper 26601 271259 0 0 3 0x14200 pgdaemon pagedaemon 85173 448333 0 0 3 0x14200 bored viomb 84077 261585 0 0 3 0x40014200 acpi0 acpi0 4692 348407 0 0 7 0x40014200 idle1 44731 155646 0 0 3 0x14200 bored softnet 34465 74231 0 0 3 0x14200 bored softnet 95995 474794 0 0 3 0x14200 bored softnet 86506 487224 0 0 3 0x14200 bored softnet 73020 15978 0 0 3 0x14200 bored systqmp 48719 81780 0 0 3 0x14200 bored systq 2126 508623 0 0 3 0x40014200 bored softclock 76978 229566 0 0 3 0x40014200 idle0 1 288587 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 93763 (syz-executor.1) thread 0xffff8000212102b0 (460718) exclusive rwlock pf_lock r = 0 (0xffffffff829afcc0) #0 witness_lock+0x44d #1 pfioctl+0x5dc6 sys/net/pf_ioctl.c:1608 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff829d1c70) #0 witness_lock+0x44d #1 pfioctl+0x38b8 sys/net/pf_ioctl.c:1608 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff829afd20) #0 witness_lock+0x44d #1 pfioctl+0x15e sys/net/pf_ioctl.c:1148 #2 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #3 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #4 sys_ioctl+0x4a2 #5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82ae4d18) #0 witness_lock+0x44d #1 vn_ioctl+0x41 sys/kern/vfs_vnops.c:514 #2 sys_ioctl+0x4a2 #3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 6502K 14694K 78643K 33568 0 pcb 13 14K 16K 78643K 905 0 rtable 193 7K 10K 78643K 2293 0 ifaddr 87 19K 20K 78643K 1142 0 sysctl 2 0K 0K 78643K 2 0 counters 54 35K 36K 78643K 232 0 ioctlops 1 4K 8K 78643K 4778 0 iov 0 0K 24K 78643K 714 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1410 88K 88K 78643K 8015 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 68 0 VM map 2 1K 1K 78643K 2 0 sem 21 5K 10K 78643K 605 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 16 57K 81K 78643K 5919 0 sigio 0 0K 0K 78643K 107 0 proc 70 91K 115K 78643K 1508 0 subproc 104 6K 7K 78643K 494 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 210 0 in_multi 78 5K 7K 78643K 531 0 ether_multi 1 0K 0K 78643K 26 0 mrt 1 0K 0K 78643K 24 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 169 758K 758K 78643K 169 0 exec 0 0K 2K 78643K 2477 0 pfkey data 0 0K 0K 78643K 3 0 tdb 3 0K 0K 78643K 3 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 371 500K 500K 78643K 34121 0 UVM aobj 131 7K 7K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 134 0 NDP 12 0K 1K 78643K 180 0 temp 141 4754K 21140K 78643K 60463 0 kqueue 13 20K 24K 78643K 439 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 527 0 524 9 8 1 3 0 8 0 rtentry 112 547 0 465 4 0 4 4 0 8 0 unpcb 136 2979 0 2962 35 34 1 9 0 8 0 syncache 296 39 0 39 10 10 0 1 0 8 0 tcpqe 32 7 0 7 3 3 0 1 0 8 0 tcpcb 736 1283 0 1279 40 38 2 8 0 8 1 arp 120 84 0 68 1 0 1 1 0 8 0 inpcb 312 3999 0 3992 78 77 1 12 0 8 0 ip6q 72 4 0 4 1 1 0 1 0 8 0 ip6af 40 12 0 12 1 1 0 1 0 8 0 nd6 48 120 0 104 1 0 1 1 0 8 0 pkpcb 40 24 0 24 6 5 1 1 0 8 1 kcovpl 48 38 0 30 1 0 1 1 0 8 0 ppxss 1248 50 0 50 5 5 0 1 0 8 0 pfstscr 40 148 0 148 3 3 0 1 0 8 0 pffrag 232 20 0 17 3 2 1 1 0 482 0 pffrnode 88 20 0 17 3 2 1 1 0 8 0 pffrent 40 93 0 90 4 3 1 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 259 300 256 1 0 1 1 0 8 0 pftag 88 11 0 10 2 1 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 28 0 26 1 0 1 1 0 8 0 pfstkey 112 182 0 180 1 0 1 1 0 8 0 pfstate 336 101 0 99 2 1 1 2 0 8 0 pfrule 1360 725 0 685 7 3 4 4 0 8 0 rttmr 64 5 0 5 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2431 0 2076 38 15 23 30 0 8 0 art_table 32 2432 0 2076 4 0 4 4 0 8 0 art_node 16 543 0 471 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 6 1 0 1 1 0 8 0 semupl 112 4 0 4 1 0 1 1 0 8 1 semapl 112 595 0 576 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8973 0 7515 92 0 92 92 0 8 0 ffsino 272 8973 0 7515 98 0 98 98 0 8 0 nchpl 144 16609 0 14965 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 67984 0 67984 8 7 1 2 0 8 1 percpumem 16 128 0 89 1 0 1 1 0 8 0 vcpupl 2048 57 0 0 8 0 8 8 0 8 0 vmpool 560 99 0 42 5 0 5 5 0 8 0 pfiaddrpl 120 186 0 185 2 1 1 1 0 8 0 kstatmem 264 202 0 178 2 0 2 2 0 8 0 scxspl 216 45219 0 45219 18 17 1 8 0 8 1 plimitpl 152 642 0 627 1 0 1 1 0 8 0 sigapl 424 6192 0 6124 9 1 8 8 0 8 0 futexpl 64 61091 0 61086 4 3 1 1 0 8 0 knotepl 120 519 0 0 9 0 9 9 0 8 0 kqueuepl 216 1030 0 1021 21 17 4 5 0 8 3 pipepl 336 1200 0 1172 24 21 3 8 0 8 0 fdescpl 496 6151 0 6122 6 2 4 5 0 8 0 filepl 152 47452 0 47204 103 90 13 20 0 8 3 lockfpl 104 8812 0 8808 20 19 1 4 0 8 0 lockfspl 48 4006 0 4002 3 2 1 2 0 8 0 sessionpl 144 54 0 37 1 0 1 1 0 8 0 pgrppl 48 129 0 112 1 0 1 1 0 8 0 ucredpl 96 4470 0 4458 1 0 1 1 0 8 0 zombiepl 144 6124 0 6124 5 4 1 1 0 8 1 processpl 1064 6192 0 6124 5 0 5 5 0 8 0 procpl 672 15248 0 15163 16 7 9 9 0 8 1 srpgc 96 54 0 54 7 7 0 1 0 8 0 sosppl 168 32 0 32 8 8 0 1 0 8 0 sockpl 480 7529 0 7502 213 208 5 35 0 8 1 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 308 0 0 27 2 25 25 0 8 0 mtagpl 96 1546 0 0 36 0 36 36 0 8 0 mbufpl 256 9045 0 0 558 0 558 558 0 8 0 bufpl 288 11641 0 5311 453 0 453 453 0 8 0 anonpl 24 1167985 0 1149852 245 112 133 143 0 186 10 amapchunkpl 152 95789 0 95032 41 9 32 34 0 158 0 amappl16 200 17762 0 17172 126 94 32 44 0 8 0 amappl15 192 1503 0 1500 1 0 1 1 0 8 0 amappl14 184 1016 0 1011 1 0 1 1 0 8 0 amappl13 176 464 0 463 1 0 1 1 0 8 0 amappl12 168 858 0 854 1 0 1 1 0 8 0 amappl11 160 1496 0 1470 2 0 2 2 0 8 0 amappl10 152 1017 0 1007 1 0 1 1 0 8 0 amappl9 144 773 0 768 1 0 1 1 0 8 0 amappl8 136 1400 0 1319 3 0 3 3 0 8 0 amappl7 128 523 0 505 1 0 1 1 0 8 0 amappl6 120 702 0 681 2 1 1 2 0 8 0 amappl5 112 4463 0 4444 1 0 1 1 0 8 0 amappl4 104 4495 0 4467 2 1 1 2 0 8 0 amappl3 96 17804 0 17750 2 0 2 2 0 8 0 amappl2 88 7501 0 7422 4 2 2 3 0 8 0 amappl1 80 146383 0 145707 24 9 15 20 0 8 0 amappl 88 33035 0 32824 6 0 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 6250 0 6164 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 6250 0 6164 1 0 1 1 0 8 0 vmmpekpl 168 46172 0 46096 4 0 4 4 0 8 0 vmmpepl 168 605602 0 602805 234 101 133 144 0 357 4 vmsppl 368 6249 0 6164 11 3 8 8 0 8 0 rwobjpl 56 151171 0 143407 125 14 111 113 0 8 0 pdppl 4096 12507 0 12385 522 396 126 126 0 8 4 pvpl 32 2381633 0 2360009 404 191 213 258 0 265 23 pmappl 248 6249 0 6164 7 1 6 6 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1982 0 565 41 0 41 41 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pf_anchor_global_RB_REMOVE(ffffffff82b66738,ffff800000be9000) at pf_anchor_global_RB_REMOVE+0x58 sys/net/pf_ruleset.c:84 pf_remove_if_empty_ruleset(ffff800000be9490) at pf_remove_if_empty_ruleset+0xdd sys/net/pf_ruleset.c:300 pfi_dynaddr_setup(ffff800000c99d90,0) at pfi_dynaddr_setup+0x411 sys/net/pf_if.c:487 pfioctl(4900,cd60441a,ffff800000bf0000,3,ffff8000212102b0) at pfioctl+0x8d37 pf_addr_setup sys/net/pf_ioctl.c:894 [inline] pfioctl(4900,cd60441a,ffff800000bf0000,3,ffff8000212102b0) at pfioctl+0x8d37 sys/net/pf_ioctl.c:1653 VOP_IOCTL(fffffd806f680728,cd60441a,ffff800000bf0000,3,fffffd807f7d76c0,ffff8000212102b0) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd807c804d30,cd60441a,ffff800000bf0000,ffff8000212102b0) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 sys_ioctl(ffff8000212102b0,ffff800023e6e778,ffff800023e6e7d0) at sys_ioctl+0x4a2 syscall(ffff800023e6e840) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023e6e840) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a1e56c1080, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5