login: ×Kpanic: 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 351600 89331 0 0 0x4000080 1 syz-executor.0 *151821 95263 0 0x14000 0x200 0 systqmp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823fea24) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828b9310,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da36d0,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da36d0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828ab988) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828ab988) 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(ffffffff8277c5f0) 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823fea24) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828b9310,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da36d0,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da36d0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828ab988) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828ab988) 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(ffffffff8277c5f0) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020da3440 rbx 0xffff800020da34f0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff813837bf kprintf+0x16f r9 0x1 r10 0x2 r11 0x47a0f19be22c4065 r12 0x3000000008 r13 0xffff800020da3450 r14 0x100 r15 0x1 rip 0xffffffff8196be18 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020da3430 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (systqmp) pid=151821 stat=onproc flags process=14000 proc=200 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020d89380,0xffff800020d88eb0 process=0xffff800020d8a3d8 user=0xffff800020d9e000, vmspace=0xffffffff828b0500 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 89331 508968 96408 0 2 0 syz-executor.0 89331 404212 96408 0 3 0x4000080 nanosleep syz-executor.0 89331 351600 96408 0 7 0x4000080 syz-executor.0 89331 200120 96408 0 3 0x4000080 nanosleep syz-executor.0 24944 372027 0 0 3 0x14200 bored sosplice 10180 118731 18540 0 3 0x82 piperd syz-executor.1 96408 314536 18540 0 3 0x82 nanosleep syz-executor.0 18540 61466 96697 0 3 0x82 thrsleep syz-fuzzer 18540 418708 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 270013 96697 0 3 0x4000082 kqread syz-fuzzer 18540 98642 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 393287 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 492855 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 106757 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 234992 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 59344 96697 0 3 0x4000082 thrsleep syz-fuzzer 18540 67553 96697 0 3 0x4000082 thrsleep syz-fuzzer 96697 183950 63870 0 3 0x10008a pause ksh 63870 106764 7233 0 3 0x92 select sshd 41912 418138 1 0 3 0x100083 ttyin getty 7233 101124 1 0 3 0x80 select sshd 88681 349556 83252 74 3 0x100092 bpf pflogd 83252 461133 1 0 3 0x80 netio pflogd 84952 350962 84343 73 3 0x100090 kqread syslogd 84343 507865 1 0 3 0x100082 netio syslogd 34963 64445 1 77 3 0x100090 poll dhclient 20158 82603 1 0 3 0x80 poll dhclient 35495 405470 0 0 3 0x14200 bored smr 4642 407644 0 0 3 0x14200 pgzero zerothread 12135 289285 0 0 3 0x14200 aiodoned aiodoned 96628 216000 0 0 3 0x14200 syncer update 58366 280408 0 0 3 0x14200 cleaner cleaner 34827 60382 0 0 3 0x14200 reaper reaper 98902 331837 0 0 3 0x14200 pgdaemon pagedaemon 64598 460381 0 0 3 0x14200 bored crynlk 53090 315637 0 0 3 0x14200 bored crypto 64528 373128 0 0 3 0x40014200 acpi0 acpi0 14728 119609 0 0 3 0x40014200 idle1 18781 474346 0 0 3 0x14200 bored softnet *95263 151821 0 0 7 0x14200 systqmp 14108 274988 0 0 3 0x14200 bored systq 20349 39964 0 0 3 0x40014200 bored softclock 97395 437780 0 0 3 0x40014200 idle0 1 517383 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex mbufpl r = 0 (0xffffffff828ab998) #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 95263 (systqmp) thread 0xffff800020d89110 (151821) shared rwlock pools r = 0 (0xffffffff827575d0) #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 (0xffffffff8277c660) #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 (0xffffffff828ab998) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9505 6419K 6918K 78643K 10854 0 pcb 13 8K 8K 78643K 34 0 rtable 106 4K 4K 78643K 242 0 ifaddr 66 13K 13K 78643K 75 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1553 0 iov 0 0K 24K 78643K 214 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1299 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 47 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 187 0 proc 62 63K 95K 78643K 459 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 12 0 in_multi 43 2K 2K 78643K 56 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 223 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 115 38K 38K 78643K 1531 0 UVM aobj 5 2K 2K 78643K 7 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 10 0 NDP 10 0K 0K 78643K 15 0 temp 92 3849K 3913K 78643K 2714 0 kqueue 3 4K 8K 78643K 8 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 arp 64 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 31 1 0 1 1 0 8 0 rtentry 112 54 0 12 2 0 2 2 0 8 0 unpcb 120 117 0 107 1 0 1 1 0 8 0 syncache 264 8 0 8 2 1 1 1 0 8 1 tcpqe 32 192 0 192 2 2 0 1 0 8 0 tcpcb 544 66 0 62 1 0 1 1 0 8 0 inpcb 296 180 0 173 2 0 2 2 0 8 1 nd6 48 8 0 4 1 0 1 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 8 0 7 1 0 1 1 0 8 0 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 3 0 1 1 0 1 1 0 8 0 pfstitem 24 30 0 2 1 0 1 1 0 8 0 pfstkey 112 30 0 2 1 0 1 1 0 8 0 pfstate 328 29 0 2 3 0 3 3 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 224 0 44 12 0 12 12 0 8 0 art_table 32 225 0 44 2 0 2 2 0 8 0 art_node 16 53 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 5 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1634 0 226 89 0 89 89 0 8 0 ffsino 272 1634 0 226 96 1 95 95 0 8 0 nchpl 144 2169 0 573 60 0 60 60 0 8 0 uvmvnodes 72 1735 0 0 32 0 32 32 0 8 0 vnodes 208 1735 0 0 92 0 92 92 0 8 0 namei 1024 5876 0 5876 2 1 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 scxspl 192 6279 0 6279 8 2 6 7 0 8 6 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 403 0 371 4 0 4 4 0 8 0 futexpl 56 2517 0 2517 1 0 1 1 0 8 1 knotepl 112 67 0 48 1 0 1 1 0 8 0 kqueuepl 144 26 0 24 1 0 1 1 0 8 0 pipelkpl 48 99 0 89 1 0 1 1 0 8 0 pipepl 120 198 0 179 1 0 1 1 0 8 0 fdescpl 496 387 0 371 3 0 3 3 0 8 0 filepl 152 2258 0 2157 6 1 5 5 0 8 1 lockfpl 104 47 0 45 1 0 1 1 0 8 0 lockfspl 48 20 0 18 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 203 0 193 1 0 1 1 0 8 0 zombiepl 144 371 0 371 2 1 1 1 0 8 1 processpl 984 403 0 371 6 1 5 5 0 8 0 procpl 624 764 0 720 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 331 0 312 5 1 4 4 0 8 2 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k 2048 213 0 0 26 0 26 26 0 8 0 mtagpl 96 24 0 0 1 0 1 1 0 8 0 mbufpl 256 221 0 0 15 1 14 14 0 8 0 bufpl 280 3757 0 133 259 0 259 259 0 8 0 anonpl 16 52906 0 37310 81 1 80 80 0 124 16 amapchunkpl 152 1901 0 1751 9 1 8 8 0 158 0 amappl16 192 1821 0 994 54 3 51 54 0 8 8 amappl15 184 77 0 74 1 0 1 1 0 8 0 amappl14 176 26 0 22 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 11 0 9 1 0 1 1 0 8 0 amappl11 152 134 0 117 1 0 1 1 0 8 0 amappl10 144 106 0 96 1 0 1 1 0 8 0 amappl9 136 380 0 379 1 0 1 1 0 8 0 amappl8 128 330 0 308 1 0 1 1 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 32 0 25 1 0 1 1 0 8 0 amappl5 104 304 0 286 1 0 1 1 0 8 0 amappl4 96 482 0 455 1 0 1 1 0 8 0 amappl3 88 115 0 110 1 0 1 1 0 8 0 amappl2 80 2183 0 2109 2 0 2 2 0 8 0 amappl1 72 18445 0 17989 23 13 10 18 0 8 0 amappl 80 1018 0 969 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 6 0 2 1 0 1 1 0 8 0 uaddrrnd 24 388 0 371 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 388 0 371 1 0 1 1 0 8 0 vmmpekpl 168 6870 0 6836 2 0 2 2 0 8 0 vmmpepl 168 53778 0 51787 113 10 103 106 0 357 11 vmsppl 368 387 0 371 2 0 2 2 0 8 0 pdppl 4096 783 0 743 7 1 6 6 0 8 0 pvpl 32 172722 0 153981 192 3 189 189 0 265 36 pmappl 232 387 0 371 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 272 0 8 8 0 8 8 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:398 panic(ffffffff823fea24) at panic+0x15c sys/kern/subr_prf.c:207 witness_checkorder(ffffffff828b9310,9,0) at witness_checkorder+0x10e0 sys/kern/subr_witness.c:821 __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 read_rflags machine/cpufunc.h:195 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 intr_disable machine/cpufunc.h:216 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0xa1 sys/kern/kern_lock.c:142 pageflttrap(ffff800020da36d0,0) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 kerntrap(ffff800020da36d0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pool_cache_gc(ffffffff828ab988) at pool_cache_gc+0x138 pool_cache_list_put sys/kern/subr_pool.c:1970 [inline] pool_cache_gc(ffffffff828ab988) 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(ffffffff8277c5f0) at taskq_thread+0xec sys/kern/kern_task.c:437 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d70ff0) 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 __mp_lock(ffffffff828b9108) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828b9108,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800022b03140,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800022b03140,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800022b03140,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 rwsleep(ffff800020dfc9d8,ffffffff8274dfb0,120,ffffffff823e2e0f,0) at rwsleep+0x11b sys/kern/kern_synch.c:313 futex_wait(f396d82fbb0,3,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:254 sys_futex(ffff800020dfc9d8,ffff800022b032e0,ffff800022b03330) at sys_futex+0x114 sys/kern/sys_futex.c:110 syscall(ffff800022b033b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022b033b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf390dec4950, count: 2 ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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 __mp_lock(ffffffff828b9108) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828b9108) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828b9108,2) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff800022b03140,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800022b03140,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800022b03140,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 rwsleep(ffff800020dfc9d8,ffffffff8274dfb0,120,ffffffff823e2e0f,0) at rwsleep+0x11b sys/kern/kern_synch.c:313 futex_wait(f396d82fbb0,3,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:254 sys_futex(ffff800020dfc9d8,ffff800022b032e0,ffff800022b03330) at sys_futex+0x114 sys/kern/sys_futex.c:110 syscall(ffff800022b033b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022b033b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf390dec4950, count: -13