panic:WARNING: SPL NOT LOWERED ON TRAP EXIT a 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x658 TID PID UID PRFLAGS PFLAGS CPU COMMAND 243672 77029 32767 0x10 0 0 syz-executor.6 *219966 42801 0 0x2000002 0 1 syz-fuzzer proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0xc001035718, count: 14 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 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0xc001035718, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a1aabc0 rbx 0 rdx 0 rcx 0xffff80002a199ab0 rax 0x2a r8 0xffff80002a1aaaf0 r9 0x2f8 r10 0x82ce54dbedb15d6 r11 0x1a0f902dab055cf8 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff815714d7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a1aab40 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x658 ddb{1}> show proc PROC (syz-fuzzer) tid=219966 pid=42801 tcnt=16 stat=onproc flags process=2000002 proc=0 runpri=76, usrpri=76, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a199808,0xffff80002a19a010 process=0xffff80002a190d60 user=0xffff80002a1a5000, vmspace=0xfffffd807effa1c0 estcpu=26, cpticks=0, pctcpu=0.2, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 58784 423749 15367 32767 3 0x90 nanoslp syz-executor.1 58784 161615 15367 32767 2 0x4000090 syz-executor.1 58784 33698 15367 32767 3 0x4000090 fsleep syz-executor.1 4264 58326 39116 32767 2 0x90 syz-executor.0 39116 146687 42801 0 3 0x82 wait syz-executor.0 29903 8637 39852 32767 2 0x90 syz-executor.7 39852 387239 42801 0 3 0x82 wait syz-executor.7 15367 420171 80931 32767 3 0x90 nanoslp syz-executor.1 80931 464473 42801 0 3 0x82 wait syz-executor.1 77029 243672 61695 32767 7 0x10 syz-executor.6 61695 40465 42801 0 3 0x82 wait syz-executor.6 83447 504144 16932 32767 3 0x90 piperd syz-executor.5 16932 288435 42801 0 3 0x82 wait syz-executor.5 20057 79298 50072 32767 3 0x10 biowait syz-executor.2 50072 17915 42801 0 3 0x82 wait syz-executor.2 39342 482667 35926 32767 2 0x90 syz-executor.3 35926 82007 42801 0 3 0x82 wait syz-executor.3 55586 128654 0 0 3 0x14200 bored sosplice *42801 219966 45974 0 7 0x2000002 syz-fuzzer 42801 260744 45974 0 3 0x6000082 nanoslp syz-fuzzer 42801 81500 45974 0 3 0x6000082 wait syz-fuzzer 42801 155598 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 300650 45974 0 3 0x6000082 wait syz-fuzzer 42801 516273 45974 0 3 0x6000082 wait syz-fuzzer 42801 31687 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 477918 45974 0 3 0x6000082 wait syz-fuzzer 42801 264363 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 212850 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 187326 45974 0 3 0x6000082 wait syz-fuzzer 42801 40692 45974 0 2 0x6000002 syz-fuzzer 42801 59820 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 366134 45974 0 3 0x6000082 thrsleep syz-fuzzer 42801 131353 45974 0 3 0x6000082 wait syz-fuzzer 42801 322083 45974 0 3 0x6000082 wait syz-fuzzer 45974 313154 41490 0 3 0x10008a sigsusp ksh 41490 77958 65685 0 2 0x9a sshd 21284 511525 1 0 3 0x100083 ttyin getty 65685 424987 1 0 3 0x88 kqread sshd 25296 227739 19017 73 3 0x1100090 kqread syslogd 19017 503082 1 0 3 0x100082 netio syslogd 24230 73598 1 0 3 0x100080 kqread resolvd 98315 468205 92622 77 3 0x100092 kqread dhcpleased 18617 228059 92622 77 3 0x100092 kqread dhcpleased 92622 116297 1 0 3 0x80 kqread dhcpleased 71618 414590 0 0 3 0x14200 bored smr 40350 88853 0 0 2 0x14200 zerothread 67862 148915 0 0 3 0x14200 aiodoned aiodoned 94625 352346 0 0 3 0x14200 syncer update 47563 178387 0 0 3 0x14200 cleaner cleaner 37553 501914 0 0 3 0x14200 reaper reaper 23704 140283 0 0 3 0x14200 pgdaemon pagedaemon 90199 453228 0 0 3 0x14200 bored viomb 66948 346264 0 0 3 0x40014200 acpi0 acpi0 18211 439993 0 0 3 0x40014200 idle1 65112 322017 0 0 3 0x14200 bored softnet3 25071 519834 0 0 3 0x14200 bored softnet2 78878 417515 0 0 3 0x14200 bored softnet1 11832 481149 0 0 3 0x14200 bored softnet0 90479 311751 0 0 3 0x14200 bored systqmp 41564 382652 0 0 3 0x14200 bored systq 29207 421891 0 0 3 0x14200 tmoslp softclockmp 15663 505636 0 0 3 0x40014200 tmoslp softclock 78560 147878 0 0 3 0x40014200 idle0 1 497763 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807eff96d8) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper+0x2af sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x154 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 77029 (syz-executor.6) thread 0xffff80002a23c7f0 (243672) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d82e08) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #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+0x635 sys/ufs/ufs/ufs_vnops.c:1211 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806733c6f8) #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:1145 #10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #12 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806733c3c8) #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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 20057 (syz-executor.2) thread 0xffff80002a2237f8 (79298) exclusive rrwlock inode r = 0 (0xfffffd80771042c0) #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+0x1323 sys/ufs/ufs/ufs_lookup.c:478 #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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #13 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e9f0708) #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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 42801 (syz-fuzzer) thread 0xffff80002a199ab0 (219966) exclusive rwlock amaplk r = 0 (0xfffffd806b9d27c0) #0 witness_lock+0x447 #1 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd807effa2b8) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807eff96d8) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 pmap_enter+0x1c3 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:423 [inline] #3 pmap_enter+0x1c3 sys/arch/amd64/amd64/pmap.c:2716 #4 uvm_fault_upper+0x2af sys/uvm/uvm_fault.c:1056 #5 uvm_fault+0x154 sys/uvm/uvm_fault.c:608 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 6411K 6419K 166960K 11414 0 pcb 15 16K 18K 166960K 21 0 rtable 228 6K 7K 166960K 2657 0 pf 27 8K 8K 166960K 103 0 ifaddr 40 15K 16K 166960K 198 0 ifgroup 46 2K 2K 166960K 198 0 sysctl 4 1K 5K 166960K 39 0 counters 62 36K 36K 166960K 138 0 ioctlops 0 0K 2K 166960K 224 0 iov 0 0K 34K 166960K 2756 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1279 80K 80K 166960K 5633 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 205 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 4562 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 121K 166960K 19049 0 sigio 0 0K 0K 166960K 516 0 proc 56 78K 115K 166960K 2445 0 subproc 91 5K 6K 166960K 598 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 2447 0 in_multi 88 6K 7K 166960K 779 0 ether_multi 1 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 319 1420K 1420K 166960K 319 0 exec 0 0K 1K 166960K 3007 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 374 78K 107K 166960K 189482 0 UVM aobj 131 4K 4K 166960K 145 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 533 0 NDP 10 0K 2K 166960K 138 0 temp 70 6711K 6840K 166960K 49862 0 kqueue 12 18K 28K 166960K 1880 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 1584 0 1581 20 19 1 5 0 8 0 rtentry 112 554 0 447 4 0 4 4 0 8 0 unpcb 144 15733 0 15720 129 124 5 10 0 8 4 syncache 320 284 0 284 36 35 1 1 0 8 1 tcpqe 32 587 0 587 33 32 1 1 0 8 1 tcpcb 808 9625 0 9575 197 185 12 16 0 8 6 arp 120 97 0 81 1 0 1 1 0 8 0 ipq 40 16 0 16 7 7 0 1 0 8 0 ipqe 40 151 0 151 7 7 0 1 0 8 0 inpcb 376 18639 0 18586 258 245 13 25 0 8 7 nd6 136 166 0 137 6 4 2 2 0 8 0 kcovpl 48 46 0 39 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2183 0 1752 32 2 30 31 0 8 0 art_table 32 2184 0 1752 4 0 4 4 0 8 0 art_node 16 553 0 455 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 4560 0 4550 1 0 1 1 0 8 0 shmpl 112 142 0 14 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 26679 0 25221 92 0 92 92 0 8 0 ffsino 272 26679 0 25221 98 0 98 98 0 8 0 nchpl 144 51616 0 49985 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 169653 0 169652 4 3 1 2 0 8 0 percpumem 16 83 0 38 1 0 1 1 0 8 0 kstatmem 264 96 0 76 2 0 2 2 0 8 0 scxspl 216 172423 0 172422 75 72 3 8 1 8 2 plimitpl 152 3250 0 3229 31 29 2 2 0 8 1 sigapl 424 19275 0 19228 7 0 7 7 0 8 0 futexpl 64 157516 0 157515 5 4 1 1 0 8 0 knotepl 120 1107 0 0 14 1 13 14 0 8 0 kqueuepl 216 4734 0 4726 69 64 5 8 0 8 4 pipepl 320 3625 0 3599 100 94 6 11 0 8 3 fdescpl 496 19256 0 19228 7 2 5 6 0 8 0 filepl 152 123752 0 123536 223 207 16 20 0 8 6 lockfpl 104 4341 0 4339 4 3 1 2 0 8 0 lockfspl 48 956 0 954 1 0 1 1 0 8 0 sessionpl 144 60 0 45 1 0 1 1 0 8 0 pgrppl 48 668 0 653 1 0 1 1 0 8 0 ucredpl 104 22068 0 22051 1 0 1 1 0 8 0 zombiepl 144 19228 0 19228 1 0 1 1 0 8 1 processpl 1136 19275 0 19228 5 0 5 5 0 8 0 procpl 680 53696 0 53632 41 33 8 9 0 8 0 sosppl 168 438 0 432 14 13 1 1 0 8 0 sockpl 488 37133 0 37064 642 623 19 38 0 8 9 mcl64k 65536 38 0 0 3 0 3 3 0 8 0 mcl16k 16384 42 0 0 4 1 3 3 0 8 0 mcl12k 12288 57 0 0 4 2 2 4 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 41 0 0 4 1 3 3 0 8 0 mcl4k 4096 61 0 0 3 0 3 3 0 8 0 mcl2k2 2112 35 0 0 3 0 3 3 0 8 0 mcl2k 2048 530 0 0 45 32 13 45 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 13391 0 0 826 0 826 826 0 8 0 bufpl 288 41097 0 34777 452 0 452 452 0 8 0 anonpl 24 2205989 0 2192915 274 172 102 121 0 186 0 amapchunkpl 152 623415 0 622633 202 162 40 54 0 158 2 amappl16 200 54175 0 53724 250 224 26 43 0 8 1 amappl15 192 22 0 22 5 5 0 1 0 8 0 amappl14 184 263 0 249 2 1 1 2 0 8 0 amappl13 176 104 0 102 2 1 1 1 0 8 0 amappl12 168 20469 0 20429 3 0 3 3 0 8 0 amappl11 160 51 0 39 1 0 1 1 0 8 0 amappl10 152 95 0 75 1 0 1 1 0 8 0 amappl9 144 382 0 381 2 1 1 1 0 8 0 amappl8 136 1063 0 882 8 0 8 8 0 8 0 amappl7 128 331 0 306 2 0 2 2 0 8 0 amappl6 120 1006 0 978 1 0 1 1 0 8 0 amappl5 112 511 0 503 1 0 1 1 0 8 0 amappl4 104 1158 0 1123 4 2 2 2 0 8 0 amappl3 96 116468 0 116392 36 32 4 4 0 8 1 amappl2 88 20766 0 20676 4 1 3 3 0 8 0 amappl1 80 77635 0 77126 22 9 13 22 0 8 0 amappl 88 187886 0 187671 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 72 144 0 14 3 0 3 3 0 8 0 uaddrrnd 24 19257 0 19229 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 19257 0 19229 1 0 1 1 0 8 0 vmmpekpl 168 152124 0 152057 6 2 4 4 0 8 0 vmmpepl 168 1140088 0 1137697 411 265 146 148 0 357 18 vmsppl 448 19256 0 19229 6 1 5 5 0 8 0 rwobjpl 56 295796 0 288156 128 16 112 113 0 8 0 pdppl 4096 38521 0 38458 670 589 81 93 0 8 18 pvpl 32 44584 0 0 362 2 360 360 0 265 0 pmappl 248 19256 0 19229 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2484 0 849 48 0 48 48 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c5aff0) 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(ffffffff82d82c00) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d82c00) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800032521780,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(3a) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(3a) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828feb40) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff828671d7) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800032521ba8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806a738e60,fffffd807e17b5e0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 end trace frame: 0xffff800032521c50, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82c5aff0) 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(ffffffff82d82c00) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d82c00) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800032521780,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(3a) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(3a) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828feb40) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff828671d7) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff800032521ba8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd806a738e60,fffffd807e17b5e0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd807e17b5e0) at bwrite+0x1f1 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd807e17b5e0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff800032521e30) at ufs_mkdir+0x687 sys/ufs/ufs/ufs_vnops.c:1227 VOP_MKDIR(fffffd806916b470,ffff800032521f90,ffff800032521fc0,ffff800032521ec0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff80002a23c7f0,ffffff9c,70a2a80dca10,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 syscall(ffff800032522140) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800032522140) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70a2a80dca80, count: -21 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x658 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0xc001035718, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0xc001035718, count: -1