panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 82718 78318 32767 0x10 0x4000000 0K syz-executor.0 54870 41592 0 0x2 0x4000080 1 syz-fuzzer db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff800021214548,ffff800027abc2e8,ffff800027abc340) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800027abc3b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027abc3b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb784e678080, count: 7 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff800021214548,ffff800027abc2e8,ffff800027abc340) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800027abc3b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027abc3b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb784e678080, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800027abc070 rbx 0xffffffff829b0bff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff800021214548 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7a06696ebd6dbb63 r11 0xfd6b8358029ce7f6 r12 0xffffffff829b0a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81f186c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027abc060 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=82718 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800021215ce8,0xffffffff82b6b538 process=0xffff8000fffe8c98 user=0xffff800027ab7000, vmspace=0xfffffd8067014b98 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 78318 368418 34302 32767 2 0x10 syz-executor.0 78318 331911 34302 32767 3 0x4000090 fsleep syz-executor.0 78318 357842 34302 32767 3 0x4000090 fsleep syz-executor.0 *78318 82718 34302 32767 7 0x4000010 syz-executor.0 95596 82549 70819 32767 2 0x10 syz-executor.2 95596 123258 70819 32767 3 0x4000090 fsleep syz-executor.2 19990 317556 47239 32767 2 0x10 syz-executor.3 99165 511410 79457 32767 2 0x10 syz-executor.1 99165 341356 79457 32767 3 0x4000090 fsleep syz-executor.1 49496 380097 43146 32767 2 0x10 syz-executor.4 49496 404068 43146 32767 3 0x4000090 netcon syz-executor.4 43146 288197 46085 32767 2 0x490 syz-executor.4 46085 149557 41592 0 3 0x82 wait syz-executor.4 56903 166539 41054 32767 3 0x90 nanoslp syz-executor.5 41054 452006 41592 0 3 0x82 wait syz-executor.5 74463 447399 0 0 3 0x14200 bored sosplice 16763 453673 16394 32767 2 0x490 syz-executor.6 25933 211268 6789 32767 2 0x10 syz-executor.7 16394 62071 41592 0 3 0x82 wait syz-executor.6 6789 127395 41592 0 3 0x82 wait syz-executor.7 70819 154619 19081 32767 3 0x90 nanoslp syz-executor.2 47239 116187 9756 32767 2 0x490 syz-executor.3 9756 185614 41592 0 3 0x82 wait syz-executor.3 79457 329232 24164 32767 3 0x90 nanoslp syz-executor.1 19081 333688 41592 0 3 0x82 wait syz-executor.2 34302 339913 10802 32767 3 0x90 nanoslp syz-executor.0 24164 266117 41592 0 3 0x82 wait syz-executor.1 10802 247823 41592 0 3 0x82 wait syz-executor.0 41592 99644 53285 0 3 0x82 thrsleep syz-fuzzer 41592 160037 53285 0 3 0x4000082 nanoslp syz-fuzzer 41592 338592 53285 0 3 0x4000082 thrsleep syz-fuzzer 41592 77223 53285 0 3 0x4000082 thrsleep syz-fuzzer 41592 364906 53285 0 2 0x4000082 syz-fuzzer 41592 54870 53285 0 7 0x4000082 syz-fuzzer 41592 78537 53285 0 3 0x4000082 thrsleep syz-fuzzer 41592 276260 53285 0 3 0x4000082 thrsleep syz-fuzzer 53285 20214 91037 0 3 0x10008a sigsusp ksh 91037 135371 81822 0 2 0x12 sshd 18028 137940 1 0 3 0x100083 ttyin getty 81822 224073 1 0 3 0x88 kqread sshd 90227 325330 21878 73 3 0x1100090 kqread syslogd 21878 281625 1 0 3 0x100082 netio syslogd 38895 399482 1 0 3 0x100080 kqread resolvd 12486 268583 10393 77 3 0x100092 kqread dhcpleased 35740 372601 10393 77 3 0x100092 kqread dhcpleased 10393 403463 1 0 3 0x80 kqread dhcpleased 31055 387460 0 0 3 0x14200 bored smr 99907 452718 0 0 2 0x14200 zerothread 5378 303938 0 0 3 0x14200 aiodoned aiodoned 28887 110885 0 0 3 0x14200 syncer update 80153 76139 0 0 3 0x14200 cleaner cleaner 6058 261343 0 0 3 0x14200 reaper reaper 52272 374231 0 0 3 0x14200 pgdaemon pagedaemon 61139 173353 0 0 3 0x14200 bored viomb 45017 55675 0 0 3 0x40014200 acpi0 acpi0 73672 486529 0 0 3 0x40014200 idle1 33809 235484 0 0 3 0x14200 bored softnet 16666 513400 0 0 3 0x14200 bored systqmp 74981 90426 0 0 3 0x14200 bored systq 38618 133696 0 0 2 0x40014200 softclock 95454 463731 0 0 3 0x40014200 idle0 1 65952 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 78318 (syz-executor.0) thread 0xffff800021214548 (82718) exclusive rwlock amaplk r = 0 (0xfffffd8067d2fc50) #0 witness_lock+0x44d #1 uvm_map_lock_entry+0x36 sys/uvm/uvm_map.c:508 #2 uvm_fault_unwire_locked+0x1e8 sys/uvm/uvm_fault.c:1655 #3 uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 #4 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 #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 shared rwlock vmmaplk r = 0 (0xfffffd8067014bb0) #0 witness_lock+0x44d #1 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1600 #2 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829fea58) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416 #3 sleep_finish+0x198 sys/kern/kern_synch.c:437 #4 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #6 uvmfault_lookup+0xb9 sys/uvm/uvm_fault.c:1752 #7 uvm_fault_check+0x603 uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #7 uvm_fault_check+0x603 sys/uvm/uvm_fault.c:712 #8 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #9 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1580 #10 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:240 #11 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #11 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #12 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82981250) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:233 #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 10214 6413K 6419K 78643K 11318 0 pcb 13 8K 8K 78643K 13 0 rtable 258 7K 7K 78643K 845 0 ifaddr 81 16K 16K 78643K 110 0 sysctl 3 1K 1K 78643K 3 0 counters 56 35K 35K 78643K 64 0 ioctlops 0 0K 2K 78643K 65 0 iov 0 0K 24K 78643K 728 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1271 79K 79K 78643K 1814 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 48 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 996 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 113K 78643K 5614 0 sigio 0 0K 0K 78643K 309 0 proc 56 74K 111K 78643K 806 0 subproc 104 6K 6K 78643K 156 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 392 0 in_multi 99 6K 6K 78643K 165 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 301 1341K 1341K 78643K 301 0 exec 0 0K 2K 78643K 1237 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 387 91K 105K 78643K 73461 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 78 0 NDP 11 0K 2K 78643K 39 0 temp 125 4711K 4775K 78643K 16951 0 kqueue 12 18K 26K 78643K 377 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 120 402 0 399 6 5 1 3 0 8 0 rtentry 112 170 0 50 4 0 4 4 0 8 0 unpcb 136 3143 0 3130 34 33 1 9 0 8 0 syncache 296 42 0 42 6 6 0 1 0 8 0 tcpqe 32 23 0 23 6 6 0 1 0 8 0 tcpcb 736 3186 0 3173 68 64 4 13 0 8 2 arp 120 27 0 8 1 0 1 1 0 8 0 ipq 40 8 0 8 3 3 0 1 0 8 0 ipqe 40 60 0 60 3 3 0 1 0 8 0 inpcb 312 4885 0 4873 49 45 4 9 0 8 2 rttmr 72 4 0 3 1 0 1 1 0 8 0 ip6q 72 9 0 8 2 1 1 1 0 8 0 ip6af 40 14 0 13 2 1 1 1 0 8 0 nd6 48 49 0 17 1 0 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 713 0 196 34 1 33 33 0 8 0 art_table 32 714 0 196 5 0 5 5 0 8 0 art_node 16 169 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 55 0 36 1 0 1 1 0 8 0 semapl 112 994 0 984 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 8088 0 6658 90 0 90 90 0 8 0 ffsino 272 8088 0 6658 96 0 96 96 0 8 0 nchpl 144 16926 0 15302 62 0 62 62 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 54357 0 54357 3 2 1 2 0 8 1 percpumem 16 44 0 4 1 0 1 1 0 8 0 scxspl 216 51858 0 51858 18 17 1 4 0 8 1 plimitpl 152 1106 0 1083 5 3 2 2 0 8 1 sigapl 424 5881 0 5830 7 0 7 7 0 8 0 futexpl 64 48611 0 48607 4 3 1 1 0 8 0 knotepl 120 296 0 0 7 1 6 6 0 8 0 kqueuepl 216 1581 0 1572 35 33 2 8 0 8 1 pipepl 336 1221 0 1193 28 15 13 13 0 8 10 fdescpl 496 5866 0 5832 7 1 6 6 0 8 0 filepl 152 36505 0 36267 73 55 18 19 0 8 8 lockfpl 104 784 0 782 1 0 1 1 0 8 0 lockfspl 48 215 0 213 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 38 0 22 1 0 1 1 0 8 0 ucredpl 96 4099 0 4081 1 0 1 1 0 8 0 zombiepl 144 5832 0 5830 1 0 1 1 0 8 0 processpl 1064 5881 0 5830 5 1 4 4 0 8 0 procpl 672 16536 0 16472 14 6 8 8 0 8 1 sosppl 168 78 0 78 8 7 1 1 0 8 1 sockpl 480 8611 0 8586 173 165 8 31 0 8 4 mcl64k 65536 22 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 24 0 0 3 1 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 193 0 0 20 1 19 20 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 986 0 0 55 0 55 55 0 8 0 bufpl 288 12795 0 6460 453 0 453 453 0 8 0 anonpl 24 1643983 0 1629798 205 72 133 133 0 186 34 amapchunkpl 152 180888 0 180138 91 57 34 45 0 158 1 amappl16 200 16320 0 15942 91 62 29 45 0 8 8 amappl15 192 429 0 423 1 0 1 1 0 8 0 amappl14 184 155 0 143 1 0 1 1 0 8 0 amappl13 176 1136 0 1132 1 0 1 1 0 8 0 amappl12 168 1419 0 1414 1 0 1 1 0 8 0 amappl11 160 1255 0 1242 1 0 1 1 0 8 0 amappl10 152 1403 0 1390 1 0 1 1 0 8 0 amappl9 144 469 0 466 1 0 1 1 0 8 0 amappl8 136 830 0 720 4 0 4 4 0 8 0 amappl7 128 133 0 120 1 0 1 1 0 8 0 amappl6 120 221 0 200 2 1 1 2 0 8 0 amappl5 112 4376 0 4358 1 0 1 1 0 8 0 amappl4 104 3399 0 3366 2 0 2 2 0 8 0 amappl3 96 2301 0 2279 1 0 1 1 0 8 0 amappl2 88 3384 0 3327 3 1 2 3 0 8 0 amappl1 80 108118 0 107498 25 10 15 18 0 8 1 amappl 88 72726 0 72458 11 3 8 8 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 5866 0 5832 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5866 0 5832 1 0 1 1 0 8 0 vmmpekpl 168 48342 0 48288 3 0 3 3 0 8 0 vmmpepl 168 535454 0 532828 198 62 136 150 0 357 10 vmsppl 368 5865 0 5832 4 0 4 4 0 8 0 rwobjpl 56 135732 0 128305 117 5 112 112 0 8 5 pdppl 4096 11739 0 11664 183 102 81 89 0 8 6 pvpl 32 2839056 0 2819556 395 172 223 259 0 265 51 pmappl 248 5865 0 5832 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1103 0 233 25 0 25 25 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8067014b98,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff800021214548,ffff800027abc2e8,ffff800027abc340) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff800027abc3b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027abc3b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb784e678080, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp 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 __mp_lock(ffffffff829fe850) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829fe850) at __mp_lock+0x129 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff829fe850,2) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff8000211f3a38,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 msleep(fffffd806f2e0000,fffffd806f2e0000,318,ffffffff825f8466,49) at msleep+0x152 sys/kern/kern_synch.c:263 kqueue_sleep(fffffd806f2e0000,ffff8000211f3e40) at kqueue_sleep+0x107 sys/kern/kern_event.c:1264 kqueue_scan(ffff8000211f3c40,8,ffff8000211f3d40,ffff8000211f3e40,ffff8000ffff67f0,ffff8000211f3e9c) at kqueue_scan+0x1ab sys/kern/kern_event.c:1322 sys_kevent(ffff8000ffff67f0,ffff8000211f3f00,ffff8000211f3f60) at sys_kevent+0x4a4 sys/kern/kern_event.c:987 syscall(ffff8000211f3fd0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211f3fd0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2610ac4c0, count: 2 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 __mp_lock(ffffffff829fe850) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829fe850) at __mp_lock+0x129 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff829fe850,2) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416 sleep_finish(ffff8000211f3a38,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437 msleep(fffffd806f2e0000,fffffd806f2e0000,318,ffffffff825f8466,49) at msleep+0x152 sys/kern/kern_synch.c:263 kqueue_sleep(fffffd806f2e0000,ffff8000211f3e40) at kqueue_sleep+0x107 sys/kern/kern_event.c:1264 kqueue_scan(ffff8000211f3c40,8,ffff8000211f3d40,ffff8000211f3e40,ffff8000ffff67f0,ffff8000211f3e9c) at kqueue_scan+0x1ab sys/kern/kern_event.c:1322 sys_kevent(ffff8000ffff67f0,ffff8000211f3f00,ffff8000211f3f60) at sys_kevent+0x4a4 sys/kern/kern_event.c:987 syscall(ffff8000211f3fd0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000211f3fd0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2610ac4c0, count: -13