ppanic: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 261863 77071 32767 0x10 0 0 syz-executor.0 *318684 62340 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279c4e0) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828184e1,ffffffff828474e6,9de,ffffffff827d3c12) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd8068b07b08) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd8068b07b08) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad310) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 9 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 *cpu0: vop_generic_badop cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_map.c", line 2526 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279c4e0) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828184e1,ffffffff828474e6,9de,ffffffff827d3c12) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd8068b07b08) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd8068b07b08) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad310) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -6 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000211b96c0 rbx 0xffff800020d59b97 rdx 0 rcx 0xffff8000211ad310 rax 0xffff800020d58ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1609b29b91cfbce3 r11 0xd0ada99fe45121a3 r12 0xffff800020d59998 r13 0 r14 0xffffffff82b9e998 cpu_info_full_primary+0x2998 r15 0x1 rip 0xffffffff81e2817c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000211b96b0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) pid=318684 stat=onproc flags process=14000 proc=200 pri=4, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000211ad880,0xffff8000211ad068 process=0xffff8000ffffe9e0 user=0xffff8000211b4000, vmspace=0xffffffff82d7a958 estcpu=2, cpticks=9, pctcpu=0.74 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64025 511864 85423 32767 2 0x10 syz-executor.2 64025 196290 85423 32767 2 0x4000010 syz-executor.2 28004 420655 82468 32767 3 0x90 nanoslp syz-executor.4 28004 494699 82468 32767 3 0x4000090 kqpoll syz-executor.4 28004 143041 82468 32767 3 0x4000090 fsleep syz-executor.4 13441 125898 40580 32767 3 0x90 nanoslp syz-executor.3 40580 395489 12145 0 3 0x82 wait syz-executor.3 11751 129049 96060 32767 3 0x90 nanoslp syz-executor.5 11751 323367 96060 32767 3 0x4000090 netio syz-executor.5 11751 430212 96060 32767 3 0x4000090 fsleep syz-executor.5 11751 247942 96060 32767 3 0x4000090 fsleep syz-executor.5 73392 317965 49844 32767 3 0x90 nanoslp syz-executor.6 73392 494574 49844 32767 3 0x4000090 fsleep syz-executor.6 73392 172309 49844 32767 3 0x4000090 netcon syz-executor.6 73392 17459 49844 32767 3 0x4000090 fsleep syz-executor.6 77071 261863 4759 32767 7 0x10 syz-executor.0 4759 335184 12145 0 3 0x82 wait syz-executor.0 61447 496080 30561 32767 3 0x10 biowait syz-executor.1 30561 239824 12145 0 3 0x82 wait syz-executor.1 49844 144269 15873 32767 3 0x90 nanoslp syz-executor.6 15873 280023 12145 0 3 0x82 wait syz-executor.6 82468 194956 47803 32767 3 0x90 nanoslp syz-executor.4 47803 434472 12145 0 3 0x82 wait syz-executor.4 96060 370058 71919 32767 3 0x90 nanoslp syz-executor.5 85423 163703 42222 32767 3 0x90 nanoslp syz-executor.2 71919 340637 12145 0 3 0x82 wait syz-executor.5 42222 160647 12145 0 3 0x82 wait syz-executor.2 41565 222417 0 0 3 0x14200 bored sosplice 12145 107241 74241 0 3 0x82 wait syz-fuzzer 12145 307221 74241 0 3 0x4000082 nanoslp syz-fuzzer 12145 88086 74241 0 3 0x4000082 thrsleep syz-fuzzer 12145 415871 74241 0 3 0x4000082 thrsleep syz-fuzzer 12145 504784 74241 0 3 0x4000082 wait syz-fuzzer 12145 123605 74241 0 3 0x4000082 wait syz-fuzzer 12145 458605 74241 0 3 0x4000082 thrsleep syz-fuzzer 12145 66916 74241 0 3 0x4000082 wait syz-fuzzer 12145 57084 74241 0 3 0x4000082 thrsleep syz-fuzzer 12145 324167 74241 0 3 0x4000082 thrsleep syz-fuzzer 12145 228691 74241 0 3 0x4000082 wait syz-fuzzer 12145 53997 74241 0 2 0x4000002 syz-fuzzer 12145 422634 74241 0 3 0x4000082 wait syz-fuzzer 12145 436938 74241 0 3 0x4000082 wait syz-fuzzer 12145 300705 74241 0 3 0x4000082 kqread syz-fuzzer 12145 336784 74241 0 3 0x4000082 thrsleep syz-fuzzer 74241 88631 63245 0 3 0x10008a sigsusp ksh 63245 341445 72378 0 3 0x9a kqread sshd 77061 231690 1 0 3 0x100083 ttyin getty 72378 131215 1 0 3 0x88 kqread sshd 23273 478727 57474 73 3 0x1100090 kqread syslogd 57474 68993 1 0 3 0x100082 netio syslogd 21414 210223 1 0 3 0x100080 kqread resolvd 77075 309110 14635 77 3 0x100092 kqread dhcpleased 21597 233484 14635 77 3 0x100092 kqread dhcpleased 14635 40125 1 0 3 0x80 kqread dhcpleased 79875 336332 0 0 3 0x14200 bored smr 2145 375084 0 0 2 0x14200 zerothread 37832 396914 0 0 3 0x14200 aiodoned aiodoned 98532 54308 0 0 3 0x14200 syncer update 92216 498773 0 0 3 0x14200 cleaner cleaner *62340 318684 0 0 7 0x14200 reaper 5610 523450 0 0 3 0x14200 pgdaemon pagedaemon 11217 7507 0 0 3 0x14200 bored viomb 30660 148184 0 0 3 0x40014200 acpi0 acpi0 3966 90241 0 0 3 0x40014200 idle1 51903 297035 0 0 3 0x14200 bored softnet3 99714 13952 0 0 3 0x14200 bored softnet2 96555 424597 0 0 3 0x14200 bored softnet1 11866 102039 0 0 3 0x14200 bored softnet0 26639 452096 0 0 3 0x14200 bored systqmp 10485 418045 0 0 3 0x14200 bored systq 67213 469040 0 0 3 0x40014200 bored softclock 69386 400000 0 0 3 0x40014200 idle0 1 170495 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82d49910) #0 witness_lock+0x447 #1 wakeup_n+0x37 sys/kern/kern_synch.c:538 #2 sched_idle+0x232 sys/kern/kern_sched.c:181 #3 proc_trampoline+0x1c Process 77071 (syz-executor.0) thread 0xffff800023af9600 (261863) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d7ca78) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x4e3 sys/kern/sched_bsd.c:430 #3 sleep_finish+0x184 sys/kern/kern_synch.c:411 #4 biowait+0x91 sys/kern/vfs_bio.c:1278 #5 bwrite+0x21c sys/kern/vfs_bio.c:769 #6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113 #7 ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80671782c0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #9 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8067178b40) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 61447 (syz-executor.1) thread 0xffff8000212715e8 (496080) exclusive rrwlock inode r = 0 (0xfffffd807b546708) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x200 sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8066c98098) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10207 6409K 6419K 78643K 11518 0 pcb 13 20K 24K 78643K 21 0 rtable 220 6K 7K 78643K 3138 0 pf 27 8K 8K 78643K 181 0 ifaddr 40 15K 16K 78643K 356 0 ifgroup 46 2K 2K 78643K 354 0 sysctl 3 1K 1K 78643K 3 0 counters 58 35K 35K 78643K 212 0 ioctlops 0 0K 2K 78643K 169 0 iov 0 0K 32K 78643K 2838 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1279 80K 80K 78643K 5461 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 382 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 18 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 20 73K 113K 78643K 25797 0 sigio 0 0K 0K 78643K 1279 0 proc 56 78K 115K 78643K 4205 0 subproc 91 5K 6K 78643K 1092 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 0K 78643K 5386 0 in_multi 88 6K 7K 78643K 1143 0 ether_multi 1 0K 0K 78643K 18 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 1K 78643K 6661 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 473 84K 109K 78643K 252008 0 UVM aobj 131 4K 4K 78643K 136 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 758 0 NDP 12 0K 2K 78643K 255 0 temp 70 5875K 5956K 78643K 68805 0 kqueue 13 20K 28K 78643K 2126 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 120 704 0 701 7 6 1 3 0 8 0 rtentry 112 996 0 893 4 0 4 4 0 8 0 unpcb 144 13340 0 13325 130 129 1 6 0 8 0 syncache 296 250 0 250 41 40 1 1 0 8 1 sackhl 24 2 0 2 2 1 1 1 0 8 1 tcpqe 32 336 0 336 41 40 1 1 0 8 1 tcpcb 808 19288 0 19280 312 310 2 21 0 8 0 arp 120 170 0 154 1 0 1 1 0 8 0 ipq 40 32 0 32 15 15 0 1 0 8 0 ipqe 40 141 0 141 15 15 0 1 0 8 0 inpcb 368 36091 0 36075 352 350 2 19 0 8 0 nd6 136 301 0 276 6 4 2 2 0 8 0 kcovpl 48 84 0 77 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4021 0 3588 37 6 31 32 0 8 2 art_table 32 4022 0 3588 5 1 4 5 0 8 0 art_node 16 995 0 901 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 1 0 1 0 8 0 semupl 112 7 0 7 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 32919 0 31449 93 0 93 93 0 8 0 ffsino 272 32919 0 31449 99 0 99 99 0 8 0 nchpl 144 68186 0 66548 63 0 63 63 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 227996 0 227995 4 3 1 2 0 8 0 percpumem 16 119 0 77 1 0 1 1 0 8 0 kstatmem 264 174 0 154 2 0 2 2 0 8 0 scxspl 216 209792 0 209791 89 88 1 8 1 8 0 plimitpl 152 4441 0 4420 20 18 2 2 0 8 0 sigapl 424 25927 0 25877 7 0 7 7 0 8 1 futexpl 64 208155 0 208150 6 5 1 1 0 8 0 knotepl 120 1235 0 0 16 0 16 16 0 8 0 kqueuepl 216 5191 0 5181 96 95 1 8 0 8 0 pipepl 320 6280 0 6255 148 145 3 10 0 8 0 fdescpl 496 25909 0 25878 7 2 5 6 0 8 0 filepl 152 160907 0 160681 257 247 10 24 0 8 1 lockfpl 104 3639 0 3636 6 5 1 2 0 8 0 lockfspl 48 1085 0 1082 1 0 1 1 0 8 0 sessionpl 144 99 0 84 1 0 1 1 0 8 0 pgrppl 48 617 0 602 1 0 1 1 0 8 0 ucredpl 104 19446 0 19429 1 0 1 1 0 8 0 zombiepl 144 25878 0 25877 1 0 1 1 0 8 0 processpl 1072 25927 0 25877 4 0 4 4 0 8 0 procpl 696 70817 0 70743 33 25 8 9 0 8 0 sosppl 168 424 0 424 34 33 1 1 0 8 1 sockpl 488 51581 0 51547 821 816 5 34 0 8 0 mcl64k 65536 34 0 0 4 1 3 3 0 8 0 mcl16k 16384 25 0 0 3 0 3 3 0 8 0 mcl12k 12288 49 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 34 0 0 5 2 3 3 0 8 0 mcl4k 4096 82 0 0 4 1 3 3 0 8 0 mcl2k2 2112 25 0 0 2 0 2 2 0 8 0 mcl2k 2048 458 0 0 33 20 13 33 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 1925 0 0 64 0 64 64 0 8 0 bufpl 288 46536 0 40221 452 0 452 452 0 8 0 anonpl 24 2516549 0 2506731 264 169 95 100 0 186 0 amapchunkpl 152 801228 0 800370 207 169 38 53 0 158 2 amappl16 200 52988 0 52724 249 222 27 28 0 8 8 amappl15 192 12 0 12 2 2 0 1 0 8 0 amappl14 184 406 0 389 2 1 1 2 0 8 0 amappl13 176 35 0 35 10 10 0 1 0 8 0 amappl12 168 27685 0 27644 9 7 2 3 0 8 0 amappl11 160 59 0 48 1 0 1 1 0 8 0 amappl10 152 119 0 103 1 0 1 1 0 8 0 amappl9 144 471 0 471 11 11 0 2 0 8 0 amappl8 136 1434 0 1199 9 0 9 9 0 8 0 amappl7 128 294 0 270 1 0 1 1 0 8 0 amappl6 120 979 0 956 2 1 1 2 0 8 0 amappl5 112 1059 0 1053 1 0 1 1 0 8 0 amappl4 104 2045 0 2002 3 1 2 3 0 8 0 amappl3 96 155096 0 154999 24 21 3 4 0 8 0 amappl2 88 27023 0 26952 4 2 2 3 0 8 0 amappl1 80 103610 0 103088 22 10 12 22 0 8 0 amappl 88 250025 0 249775 7 0 7 7 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 72 135 0 5 3 0 3 3 0 8 0 uaddrrnd 24 25909 0 25877 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 25909 0 25877 1 0 1 1 0 8 0 vmmpekpl 168 196606 0 196546 6 2 4 5 0 8 0 vmmpepl 168 1517818 0 1515384 290 160 130 153 0 357 4 vmsppl 464 25908 0 25877 7 2 5 6 0 8 0 rwobjpl 56 371578 0 364062 132 22 110 110 0 8 0 pdppl 4096 51826 0 51754 931 855 76 90 0 8 4 pvpl 32 7248470 0 7232524 753 581 172 365 0 265 0 pmappl 248 25908 0 25877 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2400 0 1550 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b9dff0) 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 __mp_lock(ffffffff82d7c870) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d7c870) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800027bbe660,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff8281e93b) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff8278d0da) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800027bbea88) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8068677a80,fffffd805cbb9c78) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 end trace frame: 0xffff800027bbeb30, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82b9dff0) 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 __mp_lock(ffffffff82d7c870) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d7c870) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800027bbe660,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(70) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(70) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff8281e93b) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff8278d0da) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800027bbea88) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8068677a80,fffffd805cbb9c78) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd805cbb9c78) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd805cbb9c78) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800027bbed20) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd807b8e4dc8,ffff800027bbee80,ffff800027bbeeb0,ffff800027bbedb0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff800023af9600,ffffff9c,7a4a61b242f0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff800027bbf030) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800027bbf030) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a4a61b24360, count: -21 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279c4e0) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828184e1,ffffffff828474e6,9de,ffffffff827d3c12) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd8068b07b08) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd8068b07b08) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad310) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 9 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279c4e0) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff828184e1,ffffffff828474e6,9de,ffffffff827d3c12) at __assert+0x29 sys/kern/subr_prf.c:157 uvm_map_teardown(fffffd8068b07b08) at uvm_map_teardown+0x348 sys/uvm/uvm_map.c:2528 uvmspace_free(fffffd8068b07b08) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211ad310) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -6