panic: spl assertion failure in yield Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *395263 31186 0 0 0x4000000 0K syz-executor.1 210989 70489 0 0x2 0x4000480 1 syz-fuzzer db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82271de1) at panic+0x15c sys/kern/subr_prf.c:207 splassert_fail(0,1,ffffffff82249ba4) at splassert_fail+0x102 sys/kern/subr_prf.c:237 yield() at yield+0x77 sys/kern/sched_bsd.c:304 malloc(10,35,1) at malloc+0xa4 sys/kern/kern_malloc.c:183 ip6_setmoptions(c,fffffd806f6e9bd8,fffffd807f01e600,0) at ip6_setmoptions+0x71 sys/netinet6/ip6_output.c:1886 ip6_ctloutput(1,fffffd806f6ea640,29,c,fffffd807f01e600) at ip6_ctloutput+0x7fd sys/netinet6/ip6_output.c:1260 sys_setsockopt(ffff800020ed9ae8,ffff800021f77348,ffff800021f77390) at sys_setsockopt+0x215 sys/kern/uipc_syscalls.c:960 syscall(ffff800021f77410) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f77410) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27dbedd0420, 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 spl assertion failure in yield ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82271de1) at panic+0x15c sys/kern/subr_prf.c:207 splassert_fail(0,1,ffffffff82249ba4) at splassert_fail+0x102 sys/kern/subr_prf.c:237 yield() at yield+0x77 sys/kern/sched_bsd.c:304 malloc(10,35,1) at malloc+0xa4 sys/kern/kern_malloc.c:183 ip6_setmoptions(c,fffffd806f6e9bd8,fffffd807f01e600,0) at ip6_setmoptions+0x71 sys/netinet6/ip6_output.c:1886 ip6_ctloutput(1,fffffd806f6ea640,29,c,fffffd807f01e600) at ip6_ctloutput+0x7fd sys/netinet6/ip6_output.c:1260 sys_setsockopt(ffff800020ed9ae8,ffff800021f77348,ffff800021f77390) at sys_setsockopt+0x215 sys/kern/uipc_syscalls.c:960 syscall(ffff800021f77410) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f77410) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27dbedd0420, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800021f76f60 rbx 0xffff800021f77010 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff8200f94f kprintf+0x16f r9 0x1 r10 0x2 r11 0x6bb34986a197eb3c r12 0x3000000008 r13 0xffff800021f76f70 r14 0x100 r15 0x1 rip 0xffffffff816bcad8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f76f50 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=395263 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed9878,0xffffffff826484a0 process=0xffff800020ecef80 user=0xffff800021f72000, vmspace=0xfffffd806e9595c8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 31186 269005 69542 0 2 0 syz-executor.1 *31186 395263 69542 0 7 0x4000000 syz-executor.1 53415 309476 0 0 3 0x14200 acct acct 95925 285539 70489 0 2 0x2 syz-executor.0 340 145589 0 0 3 0x14200 bored sosplice 69542 490419 70489 0 3 0x82 nanosleep syz-executor.1 70489 338370 74402 0 2 0x482 syz-fuzzer 70489 210989 74402 0 7 0x4000482 syz-fuzzer 70489 51078 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 404868 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 309939 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 172279 74402 0 3 0x4000082 kqread syz-fuzzer 70489 45999 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 434162 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 193204 74402 0 3 0x4000082 thrsleep syz-fuzzer 70489 417818 74402 0 3 0x4000082 thrsleep syz-fuzzer 74402 195198 50876 0 3 0x10008a pause ksh 50876 257190 83535 0 3 0x92 select sshd 65558 500987 1 0 3 0x100083 ttyin getty 83535 61294 1 0 3 0x80 select sshd 25452 333344 91110 74 3 0x100092 bpf pflogd 91110 446944 1 0 3 0x80 netio pflogd 77406 103501 82123 73 3 0x100090 kqread syslogd 82123 147031 1 0 3 0x100082 netio syslogd 89510 10792 1 77 3 0x100090 poll dhclient 60959 227084 1 0 3 0x80 poll dhclient 43459 421628 0 0 3 0x14200 bored smr 12484 498183 0 0 3 0x14200 pgzero zerothread 27390 7663 0 0 3 0x14200 aiodoned aiodoned 27948 514794 0 0 3 0x14200 syncer update 22092 157406 0 0 3 0x14200 cleaner cleaner 7564 425410 0 0 3 0x14200 reaper reaper 80558 44648 0 0 3 0x14200 pgdaemon pagedaemon 31660 470490 0 0 3 0x14200 bored crynlk 60537 257434 0 0 3 0x14200 bored crypto 1948 116163 0 0 3 0x40014200 acpi0 acpi0 96971 297518 0 0 3 0x40014200 idle1 27124 300 0 0 3 0x14200 bored softnet 45938 28218 0 0 3 0x14200 bored systqmp 16444 435 0 0 3 0x14200 bored systq 60341 23572 0 0 3 0x40014200 bored softclock 10312 63428 0 0 3 0x40014200 idle0 1 34836 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 31186 (syz-executor.1) thread 0xffff800020ed9ae8 (395263) exclusive rwlock netlock r = 0 (0xffffffff8248f5e8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_setsockopt+0x1fa sys/kern/uipc_syscalls.c:959 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff826ad240) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 Process 95925 (syz-executor.0) thread 0xffff800020ed8018 (285539) exclusive rrwlock inode r = 0 (0xfffffd80682cee70) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b31ea28) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9536 6431K 7198K 78643K 13151 0 pcb 13 8K 8K 78643K 153 0 rtable 87 3K 4K 78643K 464 0 ifaddr 81 15K 15K 78643K 178 0 sysctl 3 1K 1K 78643K 3 0 counters 43 33K 34K 78643K 77 0 ioctlops 0 0K 4K 78643K 1511 0 iov 0 0K 16K 78643K 53 0 mount 1 1K 1K 78643K 1 0 vnodes 1230 77K 77K 78643K 1946 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 115 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 634 0 sigio 0 0K 0K 78643K 5 0 proc 61 63K 95K 78643K 537 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 62 0 in_multi 40 2K 2K 78643K 118 0 ether_multi 1 0K 0K 78643K 19 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 264 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 139 72K 74K 78643K 3068 0 UVM aobj 28 2K 2K 78643K 31 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 104 0 NDP 14 0K 0K 78643K 39 0 temp 140 3042K 3106K 78643K 6137 0 kqueue 3 4K 15K 78643K 71 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 12 0 7 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 48 0 46 1 0 1 1 0 8 0 rtentry 112 78 0 46 2 0 2 2 0 8 0 unpcb 120 334 0 324 1 0 1 1 0 8 0 syncache 264 9 0 9 4 4 0 1 0 8 0 tcpqe 32 69 0 69 1 1 0 1 0 8 0 tcpcb 544 218 0 213 1 0 1 1 0 8 0 inpcb 280 888 0 880 6 5 1 2 0 8 0 rttmr 72 3 0 3 2 2 0 1 0 8 0 nd6 48 12 0 11 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pfstscr 40 4 0 4 2 2 0 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 40 136 0 135 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 pfstitem 24 68 0 25 1 0 1 1 0 8 0 pfstkey 112 68 0 25 2 0 2 2 0 8 0 pfstate 328 66 0 23 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 338 0 203 15 3 12 13 0 8 0 art_table 32 339 0 203 2 0 2 2 0 8 0 art_node 16 77 0 48 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 13 4 4 0 1 0 8 0 semapl 112 113 0 103 1 0 1 1 0 8 0 shmpl 112 29 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2275 0 870 89 0 89 89 0 8 0 ffsino 272 2275 0 870 95 0 95 95 0 8 0 nchpl 144 3491 0 1891 60 0 60 60 0 8 0 uvmvnodes 72 2935 0 0 54 0 54 54 0 8 0 vnodes 208 2935 0 0 155 0 155 155 0 8 0 namei 1024 9938 0 9937 4 3 1 1 0 8 0 percpumem 16 49 0 17 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 3 1 0 1 1 0 8 0 scxspl 192 9469 0 9469 11 10 1 7 0 8 1 plimitpl 152 54 0 46 1 0 1 1 0 8 0 sigapl 424 848 0 815 4 0 4 4 0 8 0 futexpl 56 9434 0 9434 4 3 1 1 0 8 1 knotepl 112 144 0 125 1 0 1 1 0 8 0 kqueuepl 144 112 0 110 1 0 1 1 0 8 0 pipelkpl 48 159 0 149 1 0 1 1 0 8 0 pipepl 120 318 0 299 1 0 1 1 0 8 0 fdescpl 496 831 0 815 3 0 3 3 0 8 0 filepl 152 5308 0 5207 7 2 5 6 0 8 1 lockfpl 104 162 0 161 1 0 1 1 0 8 0 lockfspl 48 53 0 52 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 25 0 14 1 0 1 1 0 8 0 ucredpl 96 601 0 592 1 0 1 1 0 8 0 zombiepl 144 818 0 818 1 0 1 1 0 8 1 processpl 984 848 0 815 5 0 5 5 0 8 0 procpl 624 2220 0 2177 5 1 4 5 0 8 0 srpgc 64 4 0 4 1 1 0 1 0 8 0 sosppl 128 5 0 5 2 2 0 1 0 8 0 sockpl 400 1279 0 1259 11 8 3 6 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 158 0 0 19 0 19 19 0 8 0 mtagpl 80 50 0 0 2 0 2 2 0 8 0 mbufpl 256 306 0 0 19 0 19 19 0 8 0 bufpl 280 4519 0 137 313 0 313 313 0 8 0 anonpl 16 86904 0 71677 73 10 63 69 0 124 0 amapchunkpl 152 5073 0 4925 17 10 7 11 0 158 0 amappl16 192 3339 0 2522 46 4 42 43 0 8 0 amappl15 184 384 0 381 1 0 1 1 0 8 0 amappl14 176 30 0 25 1 0 1 1 0 8 0 amappl13 168 36 0 33 1 0 1 1 0 8 0 amappl12 160 15 0 11 1 0 1 1 0 8 0 amappl11 152 366 0 349 1 0 1 1 0 8 0 amappl10 144 24 0 20 1 0 1 1 0 8 0 amappl9 136 591 0 588 1 0 1 1 0 8 0 amappl8 128 594 0 559 2 0 2 2 0 8 0 amappl7 120 124 0 111 1 0 1 1 0 8 0 amappl6 112 330 0 323 1 0 1 1 0 8 0 amappl5 104 437 0 421 1 0 1 1 0 8 0 amappl4 96 807 0 776 1 0 1 1 0 8 0 amappl3 88 131 0 125 1 0 1 1 0 8 0 amappl2 80 5703 0 5635 2 0 2 2 0 8 0 amappl1 72 28232 0 27794 23 13 10 18 0 8 0 amappl 80 2498 0 2450 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 30 0 3 1 0 1 1 0 8 0 uaddrrnd 24 839 0 818 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 839 0 818 1 0 1 1 0 8 0 vmmpekpl 168 9366 0 9329 2 0 2 2 0 8 0 vmmpepl 168 108654 0 106671 126 34 92 115 0 357 0 vmsppl 368 838 0 818 2 0 2 2 0 8 0 pdppl 4096 1686 0 1641 7 1 6 7 0 8 0 pvpl 32 278360 0 259976 176 25 151 168 0 265 0 pmappl 232 838 0 818 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 280 0 19 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(ffffffff82271de1) at panic+0x15c sys/kern/subr_prf.c:207 splassert_fail(0,1,ffffffff82249ba4) at splassert_fail+0x102 sys/kern/subr_prf.c:237 yield() at yield+0x77 sys/kern/sched_bsd.c:304 malloc(10,35,1) at malloc+0xa4 sys/kern/kern_malloc.c:183 ip6_setmoptions(c,fffffd806f6e9bd8,fffffd807f01e600,0) at ip6_setmoptions+0x71 sys/netinet6/ip6_output.c:1886 ip6_ctloutput(1,fffffd806f6ea640,29,c,fffffd807f01e600) at ip6_ctloutput+0x7fd sys/netinet6/ip6_output.c:1260 sys_setsockopt(ffff800020ed9ae8,ffff800021f77348,ffff800021f77390) at sys_setsockopt+0x215 sys/kern/uipc_syscalls.c:960 syscall(ffff800021f77410) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f77410) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27dbedd0420, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020e00ff0) 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 __sanitizer_cov_trace_cmp4(ffffffff826ad038,ffffffff826ad038) at __sanitizer_cov_trace_cmp4+0x67 sys/dev/kcov.c:137 __mp_acquire_count(ffffffff826ad038,1) 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(ffff800020f19760,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020f19760,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020f19760,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82640400,120,ffffffff821f3f60,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020ed09d0,ffff800020f19890,ffff800020f198e0) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020f19960) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f19960) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004ff38, count: 3 ddb{1}> trace x86_ipi_db(ffff800020e00ff0) 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 __sanitizer_cov_trace_cmp4(ffffffff826ad038,ffffffff826ad038) at __sanitizer_cov_trace_cmp4+0x67 sys/dev/kcov.c:137 __mp_acquire_count(ffffffff826ad038,1) 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(ffff800020f19760,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020f19760,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020f19760,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff82640400,120,ffffffff821f3f60,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020ed09d0,ffff800020f19890,ffff800020f198e0) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020f19960) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f19960) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004ff38, count: -12