dB,!LO9e ;x%Êa_Jq~AByIM.fp'v:pe -룽|QJTeB`ѧ29c6uԬ;XeCkernel: double fault trap, code=0 Stopped at restore_saved+0x32: xorq 0x30(%rsp),%r11 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0xffffffff832c2000 end+0x2c2000 rsi 0xffff800033f3ed00 rbp 0 rbx 0 rdx 0 rcx 0xfffffd807f0014d8 rax 0x1b r8 0 r9 0 r10 0x1b8aa3e04b344e09 r11 0xc60801974e3a0a96 r12 0xffff800033f3ed00 r13 0xffff80002a26c000 r14 0 r15 0xffff80002a2219d8 rip 0xffffffff8220e1dc restore_saved+0x32 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0 ss 0x10 restore_saved+0x32: xorq 0x30(%rsp),%r11 ddb{0}> show proc PROC (syz-executor.4) tid=318043 pid=12265 tcnt=2 stat=onproc flags process=8000000 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff800033f3e2c0,0xffff800033f3efa0 process=0xffff8000ffff8488 user=0xffff80002a26c000, vmspace=0xfffffd807de816e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93785 162920 58768 0 2 0x8000000 syz-executor.2 93785 192150 58768 0 2 0xc000000 syz-executor.2 30233 460370 66233 60928 2 0x8000010 syz-executor.5 30233 263457 66233 60928 3 0xc000090 fsleep syz-executor.5 89920 141629 64446 60928 2 0x8000010 syz-executor.0 89920 24835 64446 60928 3 0xc000090 fsleep syz-executor.0 94935 308288 58679 0 7 0x8000000 syz-executor.1 94935 76919 58679 0 3 0xc000080 bell syz-executor.1 94935 220245 58679 0 2 0xc000000 syz-executor.1 *12265 318043 37007 0 7 0x8000000 syz-executor.4 12265 322360 37007 0 3 0xc000080 fsleep syz-executor.4 67532 336750 56740 0 2 0x8000000 syz-executor.7 67532 343668 56740 0 3 0xc000080 fsleep syz-executor.7 67532 182328 56740 0 3 0xc000080 fsleep syz-executor.7 93174 2603 3354 0 2 0x8000000 syz-executor.3 93174 280408 3354 0 3 0xc000080 netcon syz-executor.3 42924 495989 78987 0 3 0x8000080 nanoslp syz-executor.6 42924 361642 78987 0 3 0xc000080 netcon syz-executor.6 3354 136503 80586 0 3 0x8000082 nanoslp syz-executor.3 65716 63659 1 0 3 0x18100083 ttyin getty 58679 21903 80586 0 3 0x8000082 nanoslp syz-executor.1 66233 339767 80586 0 3 0x8000082 nanoslp syz-executor.5 55298 496092 0 0 3 0x14200 acct acct 58768 161409 80586 0 3 0x8000082 nanoslp syz-executor.2 37007 442854 80586 0 3 0x8000082 nanoslp syz-executor.4 64446 439105 80586 0 3 0x8000082 nanoslp syz-executor.0 56740 22526 80586 0 2 0x8000002 syz-executor.7 78987 104775 80586 0 3 0x8000082 nanoslp syz-executor.6 73709 426403 0 0 3 0x14200 bored sosplice 80586 319257 24794 0 3 0x1a000082 wait syz-fuzzer 80586 373766 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 129220 24794 0 3 0x1e000082 wait syz-fuzzer 80586 458829 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 245149 24794 0 3 0x1e000082 wait syz-fuzzer 80586 84141 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 6533 24794 0 3 0x1e000082 wait syz-fuzzer 80586 277562 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 193185 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 45453 24794 0 3 0x1e000082 wait syz-fuzzer 80586 498061 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 125983 24794 0 3 0x1e000082 wait syz-fuzzer 80586 67373 24794 0 3 0x1e000082 wait syz-fuzzer 80586 237364 24794 0 3 0x1e000082 wait syz-fuzzer 80586 264071 24794 0 3 0x1e000082 thrsleep syz-fuzzer 80586 513743 24794 0 3 0x1e000082 kqread syz-fuzzer 80586 110132 24794 0 3 0x1e000082 thrsleep syz-fuzzer 24794 186773 76814 0 3 0x810008a sigsusp ksh 76814 406636 2245 0 3 0x1800009a kqread sshd 2245 99563 1 0 3 0x18000088 kqread sshd 1842 196855 87588 73 3 0x19100090 kqread syslogd 87588 18917 1 0 3 0x18100082 sbwait syslogd 77894 42693 1 0 3 0x18100080 kqread resolvd 20332 146547 45097 77 3 0x18100092 kqread dhcpleased 39776 362595 45097 77 3 0x18100092 kqread dhcpleased 45097 331020 1 0 3 0x18000080 kqread dhcpleased 19186 28835 0 0 3 0x14200 bored smr 85243 108920 0 0 2 0x14200 zerothread 52564 85020 0 0 3 0x14200 aiodoned aiodoned 43204 331983 0 0 3 0x14200 syncer update 19855 327484 0 0 3 0x14200 cleaner cleaner 54215 512912 0 0 3 0x14200 reaper reaper 94912 216273 0 0 3 0x14200 pgdaemon pagedaemon 52757 342595 0 0 3 0x14200 bored viomb 13484 55013 0 0 3 0x40014200 acpi0 acpi0 14360 484726 0 0 3 0x40014200 idle1 62268 27421 0 0 3 0x14200 bored softnet3 23641 380531 0 0 3 0x14200 bored softnet2 96323 233890 0 0 3 0x14200 bored softnet1 35110 473526 0 0 3 0x14200 bored softnet0 42947 241054 0 0 3 0x14200 bored systqmp 97528 450004 0 0 3 0x14200 bored systq 27762 4469 0 0 3 0x14200 tmoslp softclockmp 13703 476377 0 0 3 0x40014200 tmoslp softclock 70076 403347 0 0 3 0x40014200 idle0 1 301563 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82df7018) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 sleep_finish+0x145 sys/kern/kern_synch.c:401 #2 rwsleep+0xb3 sys/kern/kern_synch.c:300 #3 futex_wait+0x297 sys/kern/sys_futex.c:250 #4 sys_futex+0xfb sys/kern/sys_futex.c:101 #5 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] #5 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 6451K 6735K 166960K 12157 0 pcb 17 17K 18K 166960K 443 0 rtable 238 8K 9K 166960K 1630 0 pf 36 10K 10K 166960K 211 0 ifaddr 46 16K 17K 166960K 221 0 ifgroup 63 2K 3K 166960K 345 0 sysctl 4 1K 3K 166960K 10 0 counters 70 37K 37K 166960K 214 0 ioctlops 0 0K 4K 166960K 1654 0 iov 0 0K 24K 166960K 227 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1377 87K 87K 166960K 3370 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 63 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 258 0 dirhash 12 2K 2K 166960K 69 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 89K 166960K 3248 0 sigio 2 0K 0K 166960K 59 0 proc 59 79K 115K 166960K 1552 0 subproc 104 6K 7K 166960K 483 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 477 0 in_multi 89 6K 7K 166960K 476 0 ether_multi 1 0K 0K 166960K 23 0 mrt 2 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 145 652K 652K 166960K 145 0 exec 0 0K 1K 166960K 1080 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 310 107K 125K 166960K 30364 0 UVM aobj 131 7K 7K 166960K 137 0 pinsyscall 38 76K 100K 166960K 5176 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 181 0 NDP 14 0K 2K 166960K 158 0 temp 76 6820K 6952K 166960K 64056 0 kqueue 12 18K 28K 166960K 414 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 432 0 428 4 3 1 3 0 8 0 rtentry 112 513 0 406 4 0 4 4 0 8 0 unpcb 144 2315 0 2300 14 12 2 6 0 8 1 syncache 336 4 0 4 1 1 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 33 0 33 2 2 0 1 0 8 0 tcpcb 808 953 0 945 29 21 8 8 0 8 7 arp 120 91 0 72 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 384 4117 0 4106 65 57 8 21 0 8 6 nd6 136 134 0 109 1 0 1 1 0 8 0 pkpcb 40 15 0 15 10 9 1 1 0 8 1 kcovpl 48 37 0 29 1 0 1 1 0 8 0 ppxss 1168 15 0 14 10 9 1 1 0 8 0 pffrag 232 38 0 31 1 0 1 1 0 482 0 pffrnode 88 38 0 31 1 0 1 1 0 8 0 pffrent 40 529 0 522 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 247 0 181 1 0 1 1 0 8 0 pfstkey 128 247 0 181 3 0 3 3 0 8 0 pfstate 376 247 0 181 10 1 9 9 0 8 0 pfrule 1344 21 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 1764 0 1342 37 9 28 29 0 8 0 art_table 32 1765 0 1342 4 0 4 4 0 8 0 art_node 16 499 0 408 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 256 0 246 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 55 0 38 3 0 3 3 0 8 0 dino2pl 256 7172 0 5648 96 0 96 96 0 8 0 ffsino 272 7172 0 5648 102 0 102 102 0 8 0 nchpl 144 12000 0 11373 67 40 27 67 0 8 0 uvmvnodes 80 7925 0 0 162 0 162 162 0 8 0 vnodes 216 7925 0 0 441 0 441 441 0 8 0 namei 1024 44999 0 44999 9 8 1 2 0 8 1 percpumem 16 121 0 72 1 0 1 1 0 8 0 vcpupl 3904 11 0 3 2 0 2 2 0 8 0 vmpool 696 23 0 15 1 0 1 1 0 8 0 kstatmem 264 172 0 144 2 0 2 2 0 8 0 scsiplug 72 10 0 10 6 5 1 1 0 8 1 scxspl 216 76815 0 76815 26 25 1 8 1 8 1 plimitpl 152 537 0 522 1 0 1 1 0 8 0 sigapl 424 3531 0 3482 8 1 7 8 0 8 0 futexpl 64 48327 0 48322 8 7 1 1 0 8 0 knotepl 120 558 0 0 11 0 11 11 0 8 0 kqueuepl 216 876 0 868 6 5 1 5 0 8 0 pipepl 320 500 0 472 3 0 3 3 0 8 0 fdescpl 496 3488 0 3459 5 1 4 5 0 8 0 filepl 152 25835 0 25584 38 22 16 21 0 8 2 lockfpl 104 1069 0 1066 2 1 1 2 0 8 0 lockfspl 48 383 0 380 1 0 1 1 0 8 0 sessionpl 144 54 0 38 1 0 1 1 0 8 0 pgrppl 48 106 0 90 1 0 1 1 0 8 0 ucredpl 104 5937 0 5923 1 0 1 1 0 8 0 zombiepl 144 3482 0 3482 1 0 1 1 0 8 1 processpl 1136 3531 0 3482 7 2 5 6 0 8 0 procpl 656 7238 0 7163 11 2 9 9 0 8 0 srpgc 96 22 0 22 5 5 0 1 0 8 0 sosppl 168 49 0 49 14 13 1 1 0 8 1 sockpl 664 6919 0 6889 76 66 10 22 0 8 7 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 443 0 0 52 1 51 52 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 2864 0 0 168 0 168 168 0 8 0 bufpl 280 13911 0 5465 604 0 604 604 0 8 0 anonpl 24 756153 0 749783 187 97 90 95 0 186 22 amapchunkpl 152 101678 0 100935 84 44 40 49 0 158 8 amappl16 200 22129 0 21993 89 69 20 24 0 8 1 amappl15 192 63 0 62 2 1 1 1 0 8 0 amappl14 184 258 0 247 2 1 1 2 0 8 0 amappl13 176 16 0 16 2 2 0 1 0 8 0 amappl12 168 4654 0 4621 3 1 2 2 0 8 0 amappl11 160 130 0 120 1 0 1 1 0 8 0 amappl10 152 91 0 79 1 0 1 1 0 8 0 amappl9 144 262 0 262 2 2 0 1 0 8 0 amappl8 136 222 0 188 2 0 2 2 0 8 0 amappl7 128 61 0 45 1 0 1 1 0 8 0 amappl6 120 735 0 719 2 1 1 2 0 8 0 amappl5 112 297 0 285 1 0 1 1 0 8 0 amappl4 104 790 0 755 4 2 2 2 0 8 0 amappl3 96 18464 0 18373 3 0 3 3 0 8 0 amappl2 88 3984 0 3911 3 1 2 3 0 8 0 amappl1 80 20988 0 20486 23 12 11 22 0 8 0 amappl 88 29416 0 29198 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 3511 0 3474 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3511 0 3474 1 0 1 1 0 8 0 vmmpekpl 168 26552 0 26482 4 0 4 4 0 8 0 vmmpepl 168 238873 0 236890 198 100 98 114 0 357 4 vmsppl 440 3510 0 3474 6 1 5 5 0 8 0 rwobjpl 56 76099 0 66929 145 12 133 133 0 8 1 pdppl 4096 7029 0 6956 208 134 74 79 0 8 1 pvpl 32 44873 0 0 364 2 362 362 0 265 0 pmappl 248 3510 0 3474 5 2 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 722 0 185 16 0 16 16 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27 end of kernel end trace frame: 0x7868f553a6d0, count: -3