panic(ffffffff821fe754) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8266d798,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e8cf78,0,44ec,ffff800020e8d0f8) at m_getuio+0xe4 sys/kern/uipc_socket.c:581 sosend(fffffd806eb40c88,0,ffff800020e8d0f8,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:536 dofilewritev(ffff800020ed1d50,4,ffff800020e8d0f8,0,ffff800020e8d1e0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1d50,ffff800020e8d190,ffff800020e8d1e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d260) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d260) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd680, count: 4 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 pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806d195800+16 0x0!=0xacf7c7d751c42a35 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821fe754) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8266d798,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e8cf78,0,44ec,ffff800020e8d0f8) at m_getuio+0xe4 sys/kern/uipc_socket.c:581 sosend(fffffd806eb40c88,0,ffff800020e8d0f8,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:536 dofilewritev(ffff800020ed1d50,4,ffff800020e8d0f8,0,ffff800020e8d1e0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1d50,ffff800020e8d190,ffff800020e8d1e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d260) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d260) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd680, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e8cca0 rbx 0xffff800020e8cd50 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff813a0f8f kprintf+0x16f r9 0x1 r10 0x2 r11 0x37f9835aaa48c8e4 r12 0x3000000008 r13 0xffff800020e8ccb0 r14 0x100 r15 0x1 rip 0xffffffff8140a528 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e8cc90 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (sshd) pid=29613 stat=onproc flags process=12 proc=0 pri=50, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed0280,0xffff800020ed0500 process=0xffff800020ec8ba0 user=0xffff800020e88000, vmspace=0xfffffd806e9542e8 estcpu=1, cpticks=3, pctcpu=0.0 user=0, sys=3, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91992 36150 0 0 3 0x14200 bored sosplice 26627 110636 76290 0 2 0x2 syz-executor.1 30089 362847 76290 0 2 0x482 syz-executor.0 76290 414433 22792 0 3 0x82 kqread syz-fuzzer 76290 247111 22792 0 2 0x4000482 syz-fuzzer 76290 172468 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 70088 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 73619 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 250963 22792 0 2 0x4000482 syz-fuzzer 76290 318079 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 480139 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 381843 22792 0 3 0x4000082 thrsleep syz-fuzzer 76290 466443 22792 0 2 0x4000482 syz-fuzzer 22792 470384 49063 0 3 0x10008a pause ksh *49063 29613 57147 0 7 0x12 sshd 2507 137321 1 0 3 0x100083 ttyin getty 57147 356113 1 0 3 0x80 select sshd 66618 226548 30566 74 3 0x100092 bpf pflogd 30566 96462 1 0 3 0x80 netio pflogd 61317 488953 49012 73 3 0x100090 kqread syslogd 49012 338479 1 0 3 0x100082 netio syslogd 55337 136154 1 77 3 0x100090 poll dhclient 74454 218210 1 0 3 0x80 poll dhclient 21988 265849 0 0 3 0x14200 bored smr 61373 83155 0 0 2 0x14200 zerothread 73084 79435 0 0 3 0x14200 aiodoned aiodoned 3554 34323 0 0 3 0x14200 syncer update 23330 72882 0 0 3 0x14200 cleaner cleaner 9586 47651 0 0 7 0x14200 reaper 99367 71301 0 0 3 0x14200 pgdaemon pagedaemon 13607 514183 0 0 3 0x14200 bored crynlk 60226 487593 0 0 3 0x14200 bored crypto 31856 311560 0 0 3 0x40014200 acpi0 acpi0 733 177626 0 0 3 0x40014200 idle1 23523 415420 0 0 3 0x14200 bored softnet 72982 321315 0 0 3 0x14200 bored systqmp 88620 429495 0 0 3 0x14200 bored systq 87605 11150 0 0 3 0x40014200 bored softclock 39974 511922 0 0 3 0x40014200 idle0 1 140140 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 9586 (reaper) thread 0xffff800020e19860 (47651) exclusive rwlock kmmaplk r = 0 (0xffffffff82553438) #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 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvm_unmap+0x6b sys/uvm/uvm_map.c:2040 #4 uvm_uarea_free+0x36 sys/uvm/uvm_glue.c:287 #5 reaper+0x156 sys/kern/kern_exit.c:445 #6 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82642d90) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 reaper+0x14e sys/kern/kern_exit.c:444 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9537 6548K 6788K 78643K 11041 0 pcb 13 8K 8K 78643K 73 0 rtable 117 5K 7K 78643K 294 0 ifaddr 85 16K 17K 78643K 124 0 counters 43 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1508 0 iov 0 0K 16K 78643K 32 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1361 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 45 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 296 0 sigio 0 0K 0K 78643K 8 0 proc 61 63K 95K 78643K 467 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 16 0 in_multi 62 3K 3K 78643K 72 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 248 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 131 72K 72K 78643K 1915 0 UVM aobj 6 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 38 0 NDP 13 0K 0K 78643K 21 0 temp 115 3042K 3106K 78643K 7742 0 kqueue 3 4K 10K 78643K 28 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 7 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 52 0 7 2 0 2 2 0 8 0 unpcb 120 215 0 205 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 24 0 24 2 2 0 1 0 8 0 tcpcb 544 94 0 90 1 0 1 1 0 8 0 inpcb 280 555 0 546 4 2 2 2 0 8 1 rttmr 72 3 0 3 2 1 1 1 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 3 0 1 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 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 6 0 4 1 0 1 1 0 8 0 pfstitem 24 30 0 15 1 0 1 1 0 8 0 pfstkey 112 32 0 17 1 0 1 1 0 8 0 pfstate 328 29 0 16 3 0 3 3 0 8 0 pfrule 1360 25 0 19 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 202 0 2 13 0 13 13 0 8 0 art_table 32 204 0 2 2 0 2 2 0 8 0 art_node 16 51 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 0 1 0 1 1 0 8 0 semapl 112 43 0 33 1 0 1 1 0 8 0 shmpl 112 5 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1792 0 387 89 0 89 89 0 8 0 ffsino 272 1792 0 387 95 1 94 95 0 8 0 nchpl 144 2443 0 832 60 0 60 60 0 8 0 uvmvnodes 72 1942 0 0 36 0 36 36 0 8 0 vnodes 208 1942 0 0 103 0 103 103 0 8 0 namei 1024 6815 0 6815 2 1 1 1 0 8 1 percpumem 16 36 0 4 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 9 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 1 1 0 1 1 0 8 0 scxspl 192 6360 0 6360 8 7 1 7 0 8 1 plimitpl 152 28 0 20 1 0 1 1 0 8 0 sigapl 424 512 0 481 4 0 4 4 0 8 0 futexpl 56 4708 0 4708 2 1 1 1 0 8 1 knotepl 112 98 0 79 1 0 1 1 0 8 0 kqueuepl 144 53 0 49 1 0 1 1 0 8 0 pipelkpl 48 123 0 113 1 0 1 1 0 8 0 pipepl 120 246 0 227 1 0 1 1 0 8 0 fdescpl 496 496 0 481 3 0 3 3 0 8 0 filepl 152 3067 0 2967 5 0 5 5 0 8 1 lockfpl 104 54 0 53 1 0 1 1 0 8 0 lockfspl 48 19 0 18 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 295 0 285 1 0 1 1 0 8 0 zombiepl 144 481 0 480 1 0 1 1 0 8 0 processpl 984 512 0 480 5 0 5 5 0 8 0 procpl 624 1133 0 1092 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 821 0 802 8 4 4 4 0 8 2 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 161 0 0 20 0 20 20 0 8 0 mtagpl 80 40 0 0 1 0 1 1 0 8 0 mbufpl 256 285 0 0 15 0 15 15 0 8 0 bufpl 280 3769 0 135 260 0 260 260 0 8 0 anonpl 16 69107 0 53472 93 14 79 80 0 124 14 amapchunkpl 152 2507 0 2355 8 1 7 8 0 158 0 amappl16 192 2863 0 2002 70 18 52 56 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 24 0 19 1 0 1 1 0 8 0 amappl13 168 153 0 148 1 0 1 1 0 8 0 amappl12 160 10 0 6 1 0 1 1 0 8 0 amappl11 152 59 0 44 1 0 1 1 0 8 0 amappl10 144 174 0 164 1 0 1 1 0 8 0 amappl9 136 389 0 387 1 0 1 1 0 8 0 amappl8 128 359 0 322 2 0 2 2 0 8 0 amappl7 120 119 0 108 1 0 1 1 0 8 0 amappl6 112 27 0 24 1 0 1 1 0 8 0 amappl5 104 396 0 379 1 0 1 1 0 8 0 amappl4 96 613 0 581 1 0 1 1 0 8 0 amappl3 88 114 0 109 1 0 1 1 0 8 0 amappl2 80 2995 0 2925 2 0 2 2 0 8 0 amappl1 72 20856 0 20416 23 13 10 18 0 8 0 amappl 80 1389 0 1342 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 1 1 0 1 1 0 8 0 uaddrrnd 24 505 0 484 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 505 0 484 1 0 1 1 0 8 0 vmmpekpl 168 7811 0 7779 2 0 2 2 0 8 0 vmmpepl 168 67889 0 65858 128 29 99 112 0 357 6 vmsppl 368 504 0 484 2 0 2 2 0 8 0 pdppl 4096 1018 0 973 7 0 7 7 0 8 1 pvpl 32 202726 0 183838 202 17 185 189 0 265 29 pmappl 232 504 0 484 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 271 0 9 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff824d1ff0) 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 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639 comcnputc(800,75) at comcnputc+0x1c8 sys/dev/ic/com.c:1260 cnputc(75) at cnputc+0x4c sys/dev/cons.c:239 kputchar(75,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff821fb2bf) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fb2bf) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff822546b0,ffffffff8225e83c,a8e,ffffffff822238da) at __assert+0x2b sys/kern/subr_prf.c:154 uvm_map_teardown(fffffd806e954b88) at uvm_map_teardown+0x2ce sys/uvm/uvm_map.c:2704 uvmspace_free(fffffd806e954b88) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e92020) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020e19860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: 1 ddb{0}> trace x86_ipi_db(ffffffff824d1ff0) 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 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x3c sys/arch/amd64/amd64/bus_space.c:639 comcnputc(800,75) at comcnputc+0x1c8 sys/dev/ic/com.c:1260 cnputc(75) at cnputc+0x4c sys/dev/cons.c:239 kputchar(75,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff821fb2bf) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff821fb2bf) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff822546b0,ffffffff8225e83c,a8e,ffffffff822238da) at __assert+0x2b sys/kern/subr_prf.c:154 uvm_map_teardown(fffffd806e954b88) at uvm_map_teardown+0x2ce sys/uvm/uvm_map.c:2704 uvmspace_free(fffffd806e954b88) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020e92020) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020e19860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -14 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(ffffffff821fe754) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8266d798,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e8cf78,0,44ec,ffff800020e8d0f8) at m_getuio+0xe4 sys/kern/uipc_socket.c:581 sosend(fffffd806eb40c88,0,ffff800020e8d0f8,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:536 dofilewritev(ffff800020ed1d50,4,ffff800020e8d0f8,0,ffff800020e8d1e0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1d50,ffff800020e8d190,ffff800020e8d1e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d260) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d260) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd680, count: 4 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821fe754) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff8266d798) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff8266d798,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e8cf78,0,44ec,ffff800020e8d0f8) at m_getuio+0xe4 sys/kern/uipc_socket.c:581 sosend(fffffd806eb40c88,0,ffff800020e8d0f8,0,0,80) at sosend+0x54e sys/kern/uipc_socket.c:536 dofilewritev(ffff800020ed1d50,4,ffff800020e8d0f8,0,ffff800020e8d1e0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020ed1d50,ffff800020e8d190,ffff800020e8d1e0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8d260) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8d260) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbd680, count: -11