panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 142808 44027 73 0x100010 0 0K syslogd *295783 96744 0 0x14000 0x200 1 systqmp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da3860,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da3860) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 sys/kern/subr_pool.c:2025 pool_gc_pages(0) at pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 taskq_thread(ffffffff82738380) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: 5 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 acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da3860,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da3860) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 sys/kern/subr_pool.c:2025 pool_gc_pages(0) at pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 taskq_thread(ffffffff82738380) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020da35d0 rbx 0xffff800020da3680 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8137073f kprintf+0x16f r9 0x1 r10 0x2 r11 0x3ab8206430424010 r12 0x3000000008 r13 0xffff800020da35e0 r14 0x100 r15 0x1 rip 0xffffffff81a9dea8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020da35c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (systqmp) pid=295783 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020d88c30,0xffff800020d884f0 process=0xffff800020d8a000 user=0xffff800020d9e000, vmspace=0xffffffff8290b9f0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91091 104245 81430 0 2 0 syz-executor.1 91091 141084 81430 0 2 0x4000000 syz-executor.1 81430 361132 3110 0 2 0x2 syz-executor.1 15004 173723 0 0 3 0x14200 bored sosplice 63999 78760 3110 0 3 0x82 piperd syz-executor.0 3110 338320 74677 0 3 0x82 kqread syz-fuzzer 3110 10520 74677 0 2 0x4000482 syz-fuzzer 3110 158873 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 104596 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 440538 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 472787 74677 0 2 0x4000002 syz-fuzzer 3110 279311 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 127496 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 241470 74677 0 3 0x4000082 thrsleep syz-fuzzer 3110 182439 74677 0 2 0x4000482 syz-fuzzer 74677 147656 40937 0 3 0x10008a pause ksh 40937 99566 31079 0 3 0x92 select sshd 46237 209680 1 0 3 0x100083 ttyin getty 31079 156799 1 0 3 0x80 select sshd 19586 423213 90405 74 3 0x100092 bpf pflogd 90405 490459 1 0 3 0x80 netio pflogd 44027 142808 62617 73 7 0x100010 syslogd 62617 426335 1 0 3 0x100082 netio syslogd 48189 48658 1 77 3 0x100090 poll dhclient 63124 100740 1 0 3 0x80 poll dhclient 8965 271738 0 0 3 0x14200 bored smr 19356 284149 0 0 3 0x14200 pgzero zerothread 23391 490925 0 0 3 0x14200 aiodoned aiodoned 36601 363174 0 0 2 0x14200 update 59325 206029 0 0 3 0x14200 cleaner cleaner 3339 393265 0 0 3 0x14200 reaper reaper 22313 492250 0 0 3 0x14200 pgdaemon pagedaemon 90008 250787 0 0 3 0x14200 bored crynlk 99155 434358 0 0 3 0x14200 bored crypto 54027 379611 0 0 3 0x40014200 acpi0 acpi0 871 284187 0 0 3 0x40014200 idle1 79001 321808 0 0 2 0x14200 softnet *96744 295783 0 0 7 0x14200 systqmp 94348 359120 0 0 3 0x14200 bored systq 65596 101789 0 0 2 0x40014200 softclock 69816 388415 0 0 3 0x40014200 idle0 1 59672 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex mbufpl r = 0 (0xffffffff828bd1b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_cache_gc+0x12d pl_enter sys/kern/subr_pool.c:104 [inline] #3 pool_cache_gc+0x12d pool_cache_list_put sys/kern/subr_pool.c:1968 [inline] #3 pool_cache_gc+0x12d sys/kern/subr_pool.c:2025 #4 pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 #5 taskq_thread+0xec sys/kern/kern_task.c:437 #6 proc_trampoline+0x1c Process 44027 (syslogd) thread 0xffff800020e41390 (142808) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828cdac0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #3 sys_writev+0xa7 sys/kern/sys_generic.c:312 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 Process 96744 (systqmp) thread 0xffff800020d889c0 (295783) shared rwlock pools r = 0 (0xffffffff8270d870) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pool_gc_pages+0x21 sys/kern/subr_pool.c:1555 #2 taskq_thread+0xec sys/kern/kern_task.c:437 #3 proc_trampoline+0x1c shared rwlock systqmp r = 0 (0xffffffff827383f0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c exclusive mutex mbufpl r = 0 (0xffffffff828bd1b8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_cache_gc+0x12d pl_enter sys/kern/subr_pool.c:104 [inline] #3 pool_cache_gc+0x12d pool_cache_list_put sys/kern/subr_pool.c:1968 [inline] #3 pool_cache_gc+0x12d sys/kern/subr_pool.c:2025 #4 pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 #5 taskq_thread+0xec sys/kern/kern_task.c:437 #6 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9503 6410K 6668K 78643K 10852 0 pcb 13 8K 8K 78643K 47 0 rtable 104 4K 4K 78643K 298 0 ifaddr 60 12K 13K 78643K 92 0 counters 43 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1483 0 iov 0 0K 16K 78643K 11 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1336 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 39 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 216 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 83K 78643K 509 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 9 0 in_multi 44 2K 2K 78643K 89 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 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 233 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 122 23K 38K 78643K 1648 0 UVM aobj 8 2K 2K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 34 0 NDP 12 0K 0K 78643K 22 0 temp 88 3845K 3913K 78643K 8097 0 kqueue 3 4K 16K 78643K 21 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 arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 66 0 25 2 0 2 2 0 8 0 unpcb 120 105 0 95 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 49 0 49 1 1 0 1 0 8 0 tcpcb 544 104 0 100 2 0 2 2 0 8 1 inpcb 296 403 0 395 3 0 3 3 0 8 2 nd6 48 13 0 9 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 4 0 4 1 0 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfstitem 24 34 0 0 1 0 1 1 0 8 0 pfstkey 112 34 0 0 1 0 1 1 0 8 0 pfstate 328 34 0 0 3 0 3 3 0 8 0 pfrule 1360 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 280 0 108 13 0 13 13 0 8 2 art_table 32 281 0 108 2 0 2 2 0 8 0 art_node 16 65 0 27 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 31 0 21 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1663 0 257 89 0 89 89 0 8 0 ffsino 272 1663 0 257 95 0 95 95 0 8 0 nchpl 144 2228 0 631 60 0 60 60 0 8 0 uvmvnodes 72 1795 0 0 33 0 33 33 0 8 0 vnodes 208 1795 0 0 95 0 95 95 0 8 0 namei 1024 6017 0 6017 1 0 1 1 0 8 1 percpumem 16 36 0 4 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 0 1 1 0 8 1 scxspl 192 6297 0 6297 8 1 7 7 0 8 7 plimitpl 152 28 0 20 1 0 1 1 0 8 0 sigapl 424 429 0 397 4 0 4 4 0 8 0 futexpl 56 2686 0 2686 1 0 1 1 0 8 1 knotepl 112 99 0 80 1 0 1 1 0 8 0 kqueuepl 144 48 0 46 1 0 1 1 0 8 0 pipelkpl 48 94 0 84 1 0 1 1 0 8 0 pipepl 120 188 0 169 1 0 1 1 0 8 0 fdescpl 496 413 0 397 3 0 3 3 0 8 0 filepl 152 2428 0 2327 6 0 6 6 0 8 2 lockfpl 104 30 0 29 1 0 1 1 0 8 0 lockfspl 48 12 0 11 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 153 0 143 1 0 1 1 0 8 0 zombiepl 144 397 0 397 1 0 1 1 0 8 1 processpl 984 429 0 397 5 0 5 5 0 8 0 procpl 624 828 0 786 4 0 4 4 0 8 0 sosppl 128 11 0 11 1 0 1 1 0 8 1 sockpl 400 537 0 517 5 0 5 5 0 8 3 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 131 0 0 16 0 16 16 0 8 0 mtagpl 96 21 0 0 1 0 1 1 0 8 0 mbufpl 256 212 0 0 13 0 13 13 0 8 0 bufpl 280 3720 0 135 257 0 257 257 0 8 0 anonpl 16 55187 0 42917 77 1 76 76 0 124 6 amapchunkpl 152 2699 0 2551 20 0 20 20 0 158 12 amappl16 192 1756 0 859 47 0 47 47 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 32 0 27 1 0 1 1 0 8 0 amappl13 168 222 0 217 1 0 1 1 0 8 0 amappl12 160 10 0 7 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 18 0 14 1 0 1 1 0 8 0 amappl9 136 459 0 458 1 0 1 1 0 8 0 amappl8 128 440 0 408 2 0 2 2 0 8 0 amappl7 120 125 0 112 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 224 0 208 1 0 1 1 0 8 0 amappl4 96 600 0 568 1 0 1 1 0 8 0 amappl3 88 202 0 194 1 0 1 1 0 8 0 amappl2 80 2288 0 2222 2 0 2 2 0 8 0 amappl1 72 19188 0 18743 23 13 10 18 0 8 0 amappl 80 1102 0 1056 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 415 0 399 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 415 0 399 1 0 1 1 0 8 0 vmmpekpl 168 7263 0 7231 2 0 2 2 0 8 0 vmmpepl 168 58113 0 56072 136 10 126 126 0 357 33 vmsppl 368 414 0 399 2 0 2 2 0 8 0 pdppl 4096 837 0 798 6 0 6 6 0 8 1 pvpl 32 179976 0 164558 183 0 183 183 0 265 21 pmappl 232 414 0 399 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 257 0 3 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff826f4ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 spllower(0) at spllower+0x87 sys/arch/amd64/amd64/intr.c:727 kqueue_scan(fffffd806e8e4ea0,40,9c86a82e800,ffff800020e55b80,ffff800020e41390,ffff800020e55bcc) at kqueue_scan+0x2c1 sys/kern/kern_event.c:930 sys_kevent(ffff800020e41390,ffff800020e55c40,ffff800020e55c90) at sys_kevent+0x464 sys/kern/kern_event.c:640 syscall(ffff800020e55d10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e55d10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1d30, count: 7 ddb{0}> trace x86_ipi_db(ffffffff826f4ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 spllower(0) at spllower+0x87 sys/arch/amd64/amd64/intr.c:727 kqueue_scan(fffffd806e8e4ea0,40,9c86a82e800,ffff800020e55b80,ffff800020e41390,ffff800020e55bcc) at kqueue_scan+0x2c1 sys/kern/kern_event.c:930 sys_kevent(ffff800020e41390,ffff800020e55c40,ffff800020e55c90) at sys_kevent+0x464 sys/kern/kern_event.c:640 syscall(ffff800020e55d10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e55d10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1d30, count: -8 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:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da3860,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da3860) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 sys/kern/subr_pool.c:2025 pool_gc_pages(0) at pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 taskq_thread(ffffffff82738380) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: 5 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823ff789) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828cdac0,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828cd8b8) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da3860,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da3860) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828bd1a8) at pool_cache_gc+0x138 sys/kern/subr_pool.c:2025 pool_gc_pages(0) at pool_gc_pages+0x6c sys/kern/subr_pool.c:1559 taskq_thread(ffffffff82738380) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10