panic: pool_do_get: fdescpl free list modified: page 0xfffffd8069a56000; item addr 0xfffffd8069a56d90; offset 0x48=0xdead4113 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 281002 73826 0 0 0x4000000 0 syz-executor.2 *490214 94843 0 0x2 0 1K syz-executor.7 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827b95b8) at panic+0x177 sys/kern/subr_prf.c:198 pool_do_get(ffffffff82d70270,9,ffff80002afdb288) at pool_do_get+0x474 sys/kern/subr_pool.c:739 pool_get(ffffffff82d70270,9) at pool_get+0xe9 sys/kern/subr_pool.c:582 fdcopy(ffff80002128b688) at fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] fdcopy(ffff80002128b688) at fdcopy+0x44 sys/kern/kern_descrip.c:1106 process_new(ffff8000212eb388,ffff80002128b688,1) at process_new+0x2bc sys/kern/kern_fork.c:255 fork1(ffff800021200db8,1,ffffffff82123d40,0,ffff80002afdb4d0,0) at fork1+0x30b sys/kern/kern_fork.c:379 syscall(ffff80002afdb550) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afdb550) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca4c0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: pool_do_get: fdescpl free list modified: page 0xfffffd8069a56000; item addr 0xfffffd8069a56d90; offset 0x48=0xdead4113 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827b95b8) at panic+0x177 sys/kern/subr_prf.c:198 pool_do_get(ffffffff82d70270,9,ffff80002afdb288) at pool_do_get+0x474 sys/kern/subr_pool.c:739 pool_get(ffffffff82d70270,9) at pool_get+0xe9 sys/kern/subr_pool.c:582 fdcopy(ffff80002128b688) at fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] fdcopy(ffff80002128b688) at fdcopy+0x44 sys/kern/kern_descrip.c:1106 process_new(ffff8000212eb388,ffff80002128b688,1) at process_new+0x2bc sys/kern/kern_fork.c:255 fork1(ffff800021200db8,1,ffffffff82123d40,0,ffff80002afdb4d0,0) at fork1+0x30b sys/kern/kern_fork.c:379 syscall(ffff80002afdb550) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afdb550) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca4c0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002afdb0d0 rbx 0xffff800020d69b8f rdx 0 rcx 0 rax 0xffff800021200db8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x41f40c465374bf8d r11 0x22c707ab378e4501 r12 0xffff800020d69990 r13 0 r14 0 r15 0x1 rip 0xffffffff81b420b8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002afdb0c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.7) pid=490214 stat=onproc flags process=2 proc=0 pri=17, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff8000212f7330,0xffff800021214de0 process=0xffff80002128b688 user=0xffff80002afd6000, vmspace=0xfffffd806b8ae8b0 estcpu=36, cpticks=2, pctcpu=0.32 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 74196 414966 35936 0 2 0 syz-executor.0 19929 280421 66944 0 2 0 syz-executor.1 19929 512024 66944 0 3 0x4000080 fsleep syz-executor.1 94084 94047 94017 0 2 0 syz-executor.5 73826 438132 77784 0 2 0 syz-executor.2 73826 281002 77784 0 7 0x4000000 syz-executor.2 53175 460391 19463 0 2 0 syz-executor.3 53175 70548 19463 0 3 0x4000080 fsleep syz-executor.3 53175 21518 19463 0 2 0x4000000 syz-executor.3 89006 309584 19880 0 3 0x80 nanoslp syz-executor.4 89006 60467 19880 0 3 0x4000000 fdlock syz-executor.4 89006 200510 19880 0 3 0x4000080 sysctllk syz-executor.4 60403 244056 0 0 3 0x14280 nfsidl nfsio 3168 454800 0 0 3 0x14280 nfsidl nfsio 37004 469325 0 0 3 0x14280 nfsidl nfsio 10947 58016 0 0 3 0x14280 nfsidl nfsio 88504 246747 0 0 3 0x14280 nfsidl nfsio 2102 223167 0 0 3 0x14280 nfsidl nfsio 77581 486949 0 0 3 0x14280 nfsidl nfsio 54308 31017 0 0 3 0x14280 nfsidl nfsio 59255 39925 0 0 3 0x14280 nfsidl nfsio 34249 441844 0 0 3 0x14280 nfsidl nfsio 92040 201211 0 0 3 0x14280 nfsidl nfsio 43746 8390 0 0 3 0x14280 nfsidl nfsio 65163 108697 0 0 3 0x14280 nfsidl nfsio 2922 28205 0 0 3 0x14280 nfsidl nfsio 19410 279780 0 0 3 0x14280 nfsidl nfsio 54138 331318 0 0 3 0x14280 nfsidl nfsio 43494 380467 0 0 3 0x14280 nfsidl nfsio 48977 29088 0 0 3 0x14280 nfsidl nfsio 95263 470880 0 0 3 0x14280 nfsidl nfsio 65278 123834 0 0 3 0x14280 nfsidl nfsio 19880 307698 33064 0 3 0x82 nanoslp syz-executor.4 19463 143955 33064 0 3 0x82 nanoslp syz-executor.3 *94843 490214 33064 0 7 0x2 syz-executor.7 94017 257607 33064 0 3 0x82 nanoslp syz-executor.5 12123 376892 1 0 3 0x100083 ttyin getty 7268 429486 0 0 3 0x14200 bored sosplice 19253 208917 33064 0 3 0x82 nanoslp syz-executor.6 1706 475073 48081 0 3 0x100082 netio arp 48081 337315 1 0 3 0x10008a sigsusp sh 77784 406998 33064 0 3 0x82 nanoslp syz-executor.2 66944 18771 33064 0 3 0x82 nanoslp syz-executor.1 35936 506101 33064 0 3 0x82 nanoslp syz-executor.0 33064 175079 56676 0 3 0x82 wait syz-fuzzer 33064 125948 56676 0 3 0x4000082 nanoslp syz-fuzzer 33064 127011 56676 0 3 0x4000082 wait syz-fuzzer 33064 224489 56676 0 3 0x4000082 thrsleep syz-fuzzer 33064 486809 56676 0 3 0x4000082 wait syz-fuzzer 33064 189204 56676 0 3 0x4000082 thrsleep syz-fuzzer 33064 392112 56676 0 3 0x4000082 wait syz-fuzzer 33064 99582 56676 0 3 0x4000082 wait syz-fuzzer 33064 286090 56676 0 3 0x4000082 wait syz-fuzzer 33064 306255 56676 0 3 0x4000082 thrsleep syz-fuzzer 33064 102303 56676 0 3 0x4000082 thrsleep syz-fuzzer 33064 404027 56676 0 3 0x4000082 wait syz-fuzzer 33064 181916 56676 0 3 0x4000082 wait syz-fuzzer 33064 158136 56676 0 3 0x4000082 thrsleep syz-fuzzer 33064 240384 56676 0 3 0x4000082 kqread syz-fuzzer 56676 15387 27006 0 3 0x10008a sigsusp ksh 27006 150911 40102 0 3 0x9a kqread sshd 40102 511853 1 0 3 0x88 kqread sshd 29220 192703 91920 74 3 0x1100092 bpf pflogd 91920 486500 1 0 3 0x80 netio pflogd 13050 441800 86658 73 3 0x1100090 kqread syslogd 86658 21063 1 0 3 0x100082 netio syslogd 25526 95213 1 0 3 0x100080 kqread resolvd 53366 334157 50810 77 3 0x100092 kqread dhcpleased 48875 496355 50810 77 3 0x100092 sysctllk dhcpleased 50810 156495 1 0 3 0x80 kqread dhcpleased 8022 85041 0 0 3 0x14200 bored smr 80667 271689 0 0 2 0x14200 zerothread 21107 204157 0 0 3 0x14200 aiodoned aiodoned 17001 240186 0 0 3 0x14200 syncer update 22881 190380 0 0 3 0x14200 cleaner cleaner 84579 345150 0 0 3 0x14200 reaper reaper 36335 154822 0 0 3 0x14200 pgdaemon pagedaemon 48603 344720 0 0 3 0x14200 bored viomb 20991 496470 0 0 3 0x40014200 acpi0 acpi0 75702 399869 0 0 3 0x40014200 idle1 66317 108696 0 0 3 0x14200 bored softnet 79035 326820 0 0 3 0x14200 bored softnet 11012 405513 0 0 3 0x14200 bored softnet 33006 232588 0 0 3 0x14200 bored softnet 87069 204413 0 0 3 0x14200 bored systqmp 75629 308705 0 0 3 0x14200 bored systq 67361 327029 0 0 3 0x40014200 bored softclock 9285 261891 0 0 3 0x40014200 idle0 1 105795 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex fdescpl r = 0 (0xffffffff82d70280) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbd sys/kern/subr_pool.c:579 #4 fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] #4 fdcopy+0x44 sys/kern/kern_descrip.c:1106 #5 process_new+0x2bc sys/kern/kern_fork.c:255 #6 fork1+0x30b sys/kern/kern_fork.c:379 #7 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #7 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #8 Xsyscall+0x128 Process 73826 (syz-executor.2) thread 0xffff8000212dd5f0 (281002) exclusive rwlock amaplk r = 0 (0xfffffd806b151f68) #0 witness_lock+0x44d #1 uvm_fault_check+0x419 sys/uvm/uvm_fault.c:783 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #3 upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186 #4 usertrap+0x204 sys/arch/amd64/amd64/trap.c:438 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80699b9460) #0 witness_lock+0x44d #1 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #4 upageflttrap+0x85 sys/arch/amd64/amd64/trap.c:186 #5 usertrap+0x204 sys/arch/amd64/amd64/trap.c:438 #6 recall_trap+0x8 Process 89006 (syz-executor.4) thread 0xffff8000212ea338 (60467) exclusive rwlock sysctllk r = 0 (0xffffffff82b9ede0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:234 #3 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #3 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #4 Xsyscall+0x128 Process 94843 (syz-executor.7) thread 0xffff800021200db8 (490214) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82db6228) #0 witness_lock+0x44d #1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] #1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 #2 Xsyscall+0x128 exclusive mutex fdescpl r = 0 (0xffffffff82d70280) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbd sys/kern/subr_pool.c:579 #4 fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] #4 fdcopy+0x44 sys/kern/kern_descrip.c:1106 #5 process_new+0x2bc sys/kern/kern_fork.c:255 #6 fork1+0x30b sys/kern/kern_fork.c:379 #7 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #7 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #8 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10241 6629K 6888K 78643K 18041 0 pcb 13 14K 16K 78643K 549 0 rtable 167 15K 16K 78643K 920 0 ifaddr 76 24K 26K 78643K 406 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 36K 78643K 264 0 ioctlops 0 0K 4K 78643K 4273 0 iov 0 0K 24K 78643K 1139 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1474 92K 92K 78643K 6185 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 45 0 VM map 2 1K 1K 78643K 2 0 sem 10 0K 1K 78643K 14 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 85K 78643K 4034 0 sigio 0 0K 0K 78643K 220 0 proc 70 91K 115K 78643K 856 0 subproc 117 7K 7K 78643K 182 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 128 0 in_multi 63 4K 6K 78643K 216 0 ether_multi 1 0K 0K 78643K 13 0 mrt 1 0K 0K 78643K 20 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 205 917K 917K 78643K 205 0 exec 0 0K 1K 78643K 1150 0 pfkey data 0 0K 0K 78643K 4 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 8 62K 64K 78643K 10 0 UVM amap 369 92K 103K 78643K 29348 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 116 0 NDP 14 0K 1K 78643K 124 0 temp 138 5779K 6802K 78643K 49104 0 kqueue 12 18K 24K 78643K 217 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 173 0 169 2 1 1 2 0 8 0 rtentry 112 190 0 125 4 0 4 4 0 8 0 unpcb 144 2518 0 2503 29 25 4 6 0 8 3 syncache 296 28 0 28 8 8 0 1 0 8 0 tcpqe 32 190 0 190 6 6 0 1 0 8 0 tcpcb 776 1064 0 1060 41 36 5 11 0 8 4 arp 120 30 0 18 1 0 1 1 0 8 0 inpcb 368 4832 0 4824 54 50 4 13 0 8 3 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 48 40 0 25 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 2 0 1 0 8 0 kcovpl 48 14 0 5 1 0 1 1 0 8 0 ppxss 1256 55 0 55 11 10 1 1 0 8 1 pppxif 1456 12 0 12 4 3 1 1 0 8 1 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 9 0 9 2 2 0 1 0 482 0 pffrnode 88 9 0 9 2 2 0 1 0 8 0 pffrent 40 23 0 23 3 3 0 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 pfanchor 1280 7 0 0 1 0 1 1 0 8 0 pfqueue 264 5 0 5 2 2 0 1 0 8 0 pfstitem 24 66 0 48 1 0 1 1 0 8 0 pfstkey 128 73 0 55 1 0 1 1 0 8 0 pfstate 384 70 0 52 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 808 0 550 34 15 19 29 0 8 0 art_table 32 810 0 551 4 1 3 4 0 8 0 art_node 16 189 0 133 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 12 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6969 0 5528 91 0 91 91 0 8 0 ffsino 272 6969 0 5528 97 0 97 97 0 8 0 nchpl 144 12752 0 11108 63 0 63 63 0 8 0 rtmask 32 4 0 4 2 2 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 46394 0 46394 5 4 1 3 0 8 1 percpumem 16 145 0 104 1 0 1 1 0 8 0 vmpool 696 40 0 40 2 2 0 1 0 8 0 kstatmem 264 194 0 166 4 1 3 3 0 8 1 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 40374 0 40374 24 23 1 8 0 8 1 plimitpl 152 245 0 228 1 0 1 1 0 8 0 sigapl 424 4366 0 4296 9 1 8 8 0 8 0 futexpl 64 42181 0 42179 3 2 1 1 0 8 0 knotepl 120 429 0 0 9 0 9 9 0 8 0 kqueuepl 216 635 0 627 17 12 5 5 0 8 4 pipepl 320 1279 0 1248 21 18 3 9 0 8 0 fdescpl 496 4328 0 4297 5 0 5 5 0 8 0 pool(0xffffffff82d70270:fdescpl): page inconsistency: page 0xfffffd8069a56000; 1 on list, 6 missing, 8 items per page filepl 152 30663 0 30404 61 45 16 20 0 8 5 lockfpl 104 1051 0 1049 3 2 1 2 0 8 0 lockfspl 48 351 0 349 1 0 1 1 0 8 0 sessionpl 144 31 0 13 1 0 1 1 0 8 0 pgrppl 48 98 0 80 1 0 1 1 0 8 0 ucredpl 104 2557 0 2545 1 0 1 1 0 8 0 zombiepl 144 4297 0 4296 2 1 1 1 0 8 0 processpl 1072 4367 0 4296 5 0 5 5 0 8 0 procpl 696 11450 0 11359 19 9 10 10 0 8 1 srpgc 96 16 0 16 4 4 0 1 0 8 0 sosppl 168 26 0 26 5 4 1 1 0 8 1 sockpl 488 7528 0 7501 122 110 12 29 0 8 8 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 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 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 506 0 0 62 4 58 62 0 8 0 mtagpl 96 249 0 0 6 0 6 6 0 8 0 mbufpl 256 1538 0 0 75 0 75 75 0 8 0 bufpl 288 10888 0 4560 453 0 453 453 0 8 0 anonpl 24 897329 0 878377 230 102 128 142 0 186 7 amapchunkpl 152 83206 0 82349 61 27 34 46 0 158 0 amappl16 200 9826 0 9316 91 63 28 40 0 8 0 amappl15 192 10 0 9 1 0 1 1 0 8 0 amappl14 184 169 0 155 2 1 1 2 0 8 0 amappl13 176 16 0 15 1 0 1 1 0 8 0 amappl12 168 520 0 511 1 0 1 1 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 40 0 31 1 0 1 1 0 8 0 amappl9 144 1010 0 1010 11 11 0 1 0 8 0 amappl8 136 231 0 158 3 0 3 3 0 8 0 amappl7 128 196 0 170 2 0 2 2 0 8 0 amappl6 120 248 0 235 2 1 1 2 0 8 0 amappl5 112 221 0 212 1 0 1 1 0 8 0 amappl4 104 957 0 923 2 0 2 2 0 8 0 amappl3 96 12448 0 12389 2 0 2 2 0 8 0 amappl2 88 5105 0 5020 4 2 2 4 0 8 0 amappl1 80 99897 0 99073 30 11 19 28 0 8 0 amappl 88 28612 0 28398 7 1 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 4368 0 4337 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4368 0 4337 1 0 1 1 0 8 0 vmmpekpl 168 42059 0 42002 4 1 3 4 0 8 0 vmmpepl 168 399840 0 396885 236 97 139 148 0 357 4 vmsppl 440 4367 0 4337 5 1 4 4 0 8 0 rwobjpl 56 112868 0 105014 128 15 113 116 0 8 0 pdppl 4096 8743 0 8674 307 234 73 79 0 8 4 pvpl 32 1837469 0 1812263 508 276 232 368 0 265 24 pmappl 248 4367 0 4337 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1209 0 320 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82b24ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148 __mp_lock(ffffffff82db6020) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x133 sys/kern/kern_lock.c:147 vn_ioctl(fffffd80667af688,80044b02,ffff80002fecd500,ffff8000212dd5f0) at vn_ioctl+0x41 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff8000212dd5f0,ffff80002fecd610,ffff80002fecd660) at sys_ioctl+0x4a2 syscall(ffff80002fecd6e0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002fecd6e0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8dd84e8d590, count: 3 ddb{0}> trace x86_ipi_db(ffffffff82b24ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148 __mp_lock(ffffffff82db6020) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x133 sys/kern/kern_lock.c:147 vn_ioctl(fffffd80667af688,80044b02,ffff80002fecd500,ffff8000212dd5f0) at vn_ioctl+0x41 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff8000212dd5f0,ffff80002fecd610,ffff80002fecd660) at sys_ioctl+0x4a2 syscall(ffff80002fecd6e0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002fecd6e0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8dd84e8d590, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827b95b8) at panic+0x177 sys/kern/subr_prf.c:198 pool_do_get(ffffffff82d70270,9,ffff80002afdb288) at pool_do_get+0x474 sys/kern/subr_pool.c:739 pool_get(ffffffff82d70270,9) at pool_get+0xe9 sys/kern/subr_pool.c:582 fdcopy(ffff80002128b688) at fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] fdcopy(ffff80002128b688) at fdcopy+0x44 sys/kern/kern_descrip.c:1106 process_new(ffff8000212eb388,ffff80002128b688,1) at process_new+0x2bc sys/kern/kern_fork.c:255 fork1(ffff800021200db8,1,ffffffff82123d40,0,ffff80002afdb4d0,0) at fork1+0x30b sys/kern/kern_fork.c:379 syscall(ffff80002afdb550) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afdb550) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca4c0, count: 6 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827b95b8) at panic+0x177 sys/kern/subr_prf.c:198 pool_do_get(ffffffff82d70270,9,ffff80002afdb288) at pool_do_get+0x474 sys/kern/subr_pool.c:739 pool_get(ffffffff82d70270,9) at pool_get+0xe9 sys/kern/subr_pool.c:582 fdcopy(ffff80002128b688) at fdcopy+0x44 fdinit sys/kern/kern_descrip.c:1067 [inline] fdcopy(ffff80002128b688) at fdcopy+0x44 sys/kern/kern_descrip.c:1106 process_new(ffff8000212eb388,ffff80002128b688,1) at process_new+0x2bc sys/kern/kern_fork.c:255 fork1(ffff800021200db8,1,ffffffff82123d40,0,ffff80002afdb4d0,0) at fork1+0x30b sys/kern/kern_fork.c:379 syscall(ffff80002afdb550) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afdb550) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffca4c0, count: -9