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 38896 96940 32767 0x10 0x4000000 1 syz-executor.4 *171693 96940 32767 0x10 0x4000000 0K syz-executor.4 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff825897d1) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825fb722,ffffffff8255aa84,66b,ffffffff8256a3ea) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff8000299362b0,ffff80002606ec98,ffff80002606ecf0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff80002606ed60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002606ed60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7903bb13f00, 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(ffffffff825897d1) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825fb722,ffffffff8255aa84,66b,ffffffff8256a3ea) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff8000299362b0,ffff80002606ec98,ffff80002606ecf0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff80002606ed60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002606ed60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7903bb13f00, count: -8 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002606ea20 rbx 0xffffffff8291cbff cpu_info_full_primary+0x2bff rdx 0 rcx 0 rax 0xffff8000299362b0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4bb19d9ac0df6a2c r11 0xcb7c048c873b5ff0 r12 0xffffffff8291ca00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81db2b88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002606ea10 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.4) pid=171693 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff8000299367f0,0xffff800029937280 process=0xffff8000ffff2158 user=0xffff800026069000, vmspace=0xfffffd8069a03e78 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 5219 496293 91989 32767 2 0x10 syz-executor.6 5219 382938 91989 32767 2 0x4000010 syz-executor.6 96940 46425 66010 32767 2 0x10 syz-executor.4 96940 38896 66010 32767 7 0x4000010 syz-executor.4 *96940 171693 66010 32767 7 0x4000010 syz-executor.4 33951 209621 58553 32767 2 0x10 syz-executor.2 33951 494318 58553 32767 3 0x4000090 fsleep syz-executor.2 97719 113793 58193 32767 2 0x10 syz-executor.5 59744 406952 26543 32767 2 0x10 syz-executor.7 59744 221177 26543 32767 3 0x4000090 fsleep syz-executor.7 26543 279684 12707 32767 2 0x490 syz-executor.7 12707 397845 15034 0 3 0x82 wait syz-executor.7 31057 162872 92722 32767 2 0x10 syz-executor.1 92722 138510 15034 0 3 0x82 wait syz-executor.1 58193 49025 70011 32767 2 0x490 syz-executor.5 70011 363272 15034 0 3 0x82 wait syz-executor.5 66010 137589 25818 32767 2 0x490 syz-executor.4 25818 92543 15034 0 3 0x82 wait syz-executor.4 28132 183599 1473 32767 2 0x10 syz-executor.3 1473 213891 15034 0 3 0x82 wait syz-executor.3 90302 36449 0 0 3 0x14200 bored sosplice 91989 503857 30969 32767 3 0x90 nanoslp syz-executor.6 30969 469705 15034 0 3 0x82 wait syz-executor.6 58553 251707 84705 32767 3 0x90 nanoslp syz-executor.2 84705 420906 15034 0 3 0x82 wait syz-executor.2 75857 194470 10832 32767 2 0x10 syz-executor.0 10832 124959 15034 0 3 0x82 wait syz-executor.0 15034 444220 22346 0 3 0x82 thrsleep syz-fuzzer 15034 286126 22346 0 2 0x4000482 syz-fuzzer 15034 297111 22346 0 3 0x4000082 thrsleep syz-fuzzer 15034 466870 22346 0 3 0x4000082 thrsleep syz-fuzzer 15034 56576 22346 0 3 0x4000082 thrsleep syz-fuzzer 15034 491240 22346 0 3 0x4000082 thrsleep syz-fuzzer 15034 110934 22346 0 3 0x4000082 kqread syz-fuzzer 15034 434752 22346 0 3 0x4000082 thrsleep syz-fuzzer 22346 29613 35861 0 3 0x10008a sigsusp ksh 35861 187478 54703 0 3 0x9a kqread sshd 71190 255451 1 0 3 0x100083 ttyin getty 54703 315014 1 0 3 0x88 kqread sshd 9259 333889 36385 73 3 0x1100090 kqread syslogd 36385 314600 1 0 3 0x100082 netio syslogd 27416 175893 1 0 3 0x100080 kqread resolvd 77754 418256 65846 77 3 0x100092 kqread dhcpleased 7744 453061 65846 77 3 0x100092 kqread dhcpleased 65846 58650 1 0 3 0x80 kqread dhcpleased 91143 244814 0 0 3 0x14200 bored smr 34711 350215 0 0 2 0x14200 zerothread 75899 411449 0 0 3 0x14200 aiodoned aiodoned 41834 363585 0 0 3 0x14200 syncer update 34676 379414 0 0 3 0x14200 cleaner cleaner 6090 143040 0 0 3 0x14200 reaper reaper 33090 46656 0 0 3 0x14200 pgdaemon pagedaemon 51276 153971 0 0 3 0x14200 bored viomb 82706 409082 0 0 3 0x40014200 acpi0 acpi0 99633 396579 0 0 3 0x40014200 idle1 84839 189313 0 0 3 0x14200 bored softnet 56372 373951 0 0 3 0x14200 bored systqmp 28020 344391 0 0 3 0x14200 bored systq 14237 359574 0 0 2 0x40014200 softclock 63409 229099 0 0 3 0x40014200 idle0 1 315482 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 96940 (syz-executor.4) thread 0xffff8000299367f0 (38896) exclusive rwlock futex r = 0 (0xffffffff82944d90) #0 witness_lock+0x44d #1 sys_futex+0x5c sys/kern/sys_futex.c:108 #2 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #2 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 Process 96940 (syz-executor.4) thread 0xffff8000299362b0 (171693) exclusive rwlock amaplk r = 0 (0xfffffd807e8628d0) #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 (0xfffffd8069a03e90) #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 (0xffffffff829e5a88) #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 (0xffffffff8299f6e0) #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 10208 6412K 6419K 78643K 11351 0 pcb 13 12K 14K 78643K 17 0 rtable 266 7K 8K 78643K 1492 0 ifaddr 81 17K 17K 78643K 202 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 35K 78643K 90 0 ioctlops 0 0K 2K 78643K 458 0 iov 0 0K 24K 78643K 1517 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1271 79K 79K 78643K 3604 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 87 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1920 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 125K 78643K 9815 0 sigio 0 0K 0K 78643K 143 0 proc 56 74K 111K 78643K 1574 0 subproc 104 6K 6K 78643K 325 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1688 0 in_multi 99 6K 7K 78643K 457 0 ether_multi 1 0K 0K 78643K 54 0 mrt 2 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 2205 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 393 94K 108K 78643K 126995 0 UVM aobj 131 7K 7K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 199 0 NDP 11 0K 2K 78643K 78 0 temp 125 4707K 4787K 78643K 27907 0 kqueue 12 18K 28K 78643K 869 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 1092 0 1089 13 8 5 5 0 8 4 rtentry 112 335 0 211 4 0 4 4 0 8 0 unpcb 136 8456 0 8441 77 74 3 10 0 8 2 syncache 296 69 0 69 14 13 1 1 0 8 1 tcpqe 32 23 0 23 11 11 0 1 0 8 0 tcpcb 736 5131 0 5124 115 106 9 16 0 8 8 arp 120 54 0 35 1 0 1 1 0 8 0 ipq 40 12 0 12 6 5 1 1 0 8 1 ipqe 40 313 0 313 6 5 1 1 0 8 1 inpcb 304 9030 0 9020 96 86 10 15 0 8 8 rttmr 72 7 0 6 1 0 1 1 0 8 0 ip6q 72 35 0 34 3 2 1 1 0 8 0 ip6af 40 65 0 64 3 2 1 1 0 8 0 nd6 48 108 0 72 1 0 1 1 0 8 0 kcovpl 48 25 0 17 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1419 0 855 38 2 36 36 0 8 0 art_table 32 1420 0 855 6 1 5 5 0 8 0 art_node 16 334 0 220 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 9 1 1 0 1 0 8 0 semapl 112 1918 0 1908 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 14632 0 13185 91 0 91 91 0 8 0 ffsino 272 14632 0 13185 97 0 97 97 0 8 0 nchpl 144 27464 0 25838 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 93699 0 93699 4 3 1 2 0 8 1 percpumem 16 57 0 17 1 0 1 1 0 8 0 scxspl 216 87858 0 87858 26 25 1 8 0 8 1 plimitpl 152 2148 0 2125 9 7 2 2 0 8 1 sigapl 424 10055 0 10006 7 0 7 7 0 8 0 futexpl 64 86217 0 86214 6 5 1 1 0 8 0 knotepl 120 828 0 0 18 1 17 17 0 8 0 kqueuepl 216 10777 0 10769 83 78 5 12 0 8 4 pipepl 336 2824 0 2796 55 52 3 13 0 8 0 fdescpl 496 10040 0 10006 7 1 6 6 0 8 0 filepl 152 74597 0 74357 118 100 18 28 0 8 8 lockfpl 104 3522 0 3520 5 4 1 4 0 8 0 lockfspl 48 771 0 769 1 0 1 1 0 8 0 sessionpl 144 40 0 24 1 0 1 1 0 8 0 pgrppl 48 134 0 118 1 0 1 1 0 8 0 ucredpl 96 11956 0 11938 1 0 1 1 0 8 0 zombiepl 144 10006 0 10006 1 0 1 1 0 8 1 processpl 1064 10055 0 10006 5 1 4 4 0 8 0 procpl 672 28772 0 28711 17 10 7 8 0 8 1 srpgc 96 3 0 3 1 1 0 1 0 8 0 sosppl 168 107 0 107 12 12 0 1 0 8 0 sockpl 480 18928 0 18902 417 405 12 45 0 8 8 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 29 0 0 3 1 2 3 0 8 0 mcl12k 12288 17 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 34 0 0 5 2 3 3 0 8 0 mcl2k2 2112 15 0 0 1 0 1 1 0 8 0 mcl2k 2048 237 0 0 19 3 16 19 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 3208 0 0 187 0 187 187 0 8 0 bufpl 288 18759 0 12424 453 0 453 453 0 8 0 anonpl 24 2890201 0 2875805 273 163 110 118 0 186 8 amapchunkpl 152 314234 0 313448 115 71 44 48 0 158 6 amappl16 200 29451 0 29076 153 130 23 36 0 8 2 amappl15 192 662 0 655 1 0 1 1 0 8 0 amappl14 184 2455 0 2446 1 0 1 1 0 8 0 amappl13 176 192 0 191 1 0 1 1 0 8 0 amappl12 168 1999 0 1992 1 0 1 1 0 8 0 amappl11 160 2527 0 2510 1 0 1 1 0 8 0 amappl10 152 471 0 461 1 0 1 1 0 8 0 amappl9 144 1686 0 1681 1 0 1 1 0 8 0 amappl8 136 1942 0 1821 5 0 5 5 0 8 0 amappl7 128 916 0 901 1 0 1 1 0 8 0 amappl6 120 1476 0 1450 2 1 1 2 0 8 0 amappl5 112 10334 0 10313 1 0 1 1 0 8 0 amappl4 104 4202 0 4171 1 0 1 1 0 8 0 amappl3 96 2993 0 2981 1 0 1 1 0 8 0 amappl2 88 1244 0 1199 3 1 2 3 0 8 0 amappl1 80 183995 0 183389 21 7 14 18 0 8 0 amappl 88 125832 0 125569 8 0 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 10040 0 10006 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10040 0 10006 1 0 1 1 0 8 0 vmmpekpl 168 82796 0 82745 3 0 3 3 0 8 0 vmmpepl 168 926380 0 923778 222 94 128 138 0 357 1 vmsppl 368 10039 0 10006 4 0 4 4 0 8 0 rwobjpl 56 230045 0 222637 120 12 108 109 0 8 0 pdppl 4096 20087 0 20012 321 240 81 95 0 8 6 pvpl 32 4948974 0 4929240 438 245 193 242 0 265 15 pmappl 248 10039 0 10006 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1405 0 411 29 0 29 29 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(ffffffff825897d1) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825fb722,ffffffff8255aa84,66b,ffffffff8256a3ea) at __assert+0x25 sys/kern/subr_prf.c:161 uvm_fault_unwire_locked(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640 uvm_fault_unwire(fffffd8069a03e78,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601 sys_sysctl(ffff8000299362b0,ffff80002606ec98,ffff80002606ecf0) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254 syscall(ffff80002606ed60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002606ed60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7903bb13f00, 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(ffffffff829e5880) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829e5880) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff800021230bd0,ffff8000299367f0,120,ffffffff8257dfe3,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374 rwsleep(ffff8000299367f0,ffffffff82944d80,120,ffffffff8257dfe3,0) at rwsleep+0xc0 sys/kern/kern_synch.c:315 futex_wait(7904685b830,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000299367f0,ffff800021230d60,ffff800021230dc0) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff800021230e30) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021230e30) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fb7282b50, count: 5 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(ffffffff829e5880) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff829e5880) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff800021230bd0,ffff8000299367f0,120,ffffffff8257dfe3,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374 rwsleep(ffff8000299367f0,ffffffff82944d80,120,ffffffff8257dfe3,0) at rwsleep+0xc0 sys/kern/kern_synch.c:315 futex_wait(7904685b830,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000299367f0,ffff800021230d60,ffff800021230dc0) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff800021230e30) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021230e30) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78fb7282b50, count: -10