panic: pool_cache_itemp_anmiacgi:c _kechrencekl: dimbaugnfoplst iccpu asfrseeer tiloins t" m!o_dkiefriendel:_ liotcke_mh ealddd(r) " 0fxfafilffefdd:8 f06il9dee 3"d/s00y+zk2a4 l0lxercf/1mfacn9ag5e24r6sd/cmu7l5t2ic0!or=e0x/kcerf1nfecl9/sdy22sf/k0e24r3n/20k er nStopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 11545 54230 0 0 0 0 syz-executor.0 *145021 75789 0 0x12 0 1 sshd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823e1c6d) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828f5cf8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad7320) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae3648,9,fffffd8069de3100,0,0,ffff800020e51d50) at tcp_usrreq+0xa55 sosend(fffffd806eae3648,0,ffff800020e732c8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e51d50,4,ffff800020e732c8,0,ffff800020e733b0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e51d50,ffff800020e73360,ffff800020e733b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e73430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e73430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4830, count: 3 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 0xfffffd8069de3d00+24 0xcf1fc95246dc7520!=0xcf1fc9d22f024320 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823e1c6d) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828f5cf8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad7320) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae3648,9,fffffd8069de3100,0,0,ffff800020e51d50) at tcp_usrreq+0xa55 sosend(fffffd806eae3648,0,ffff800020e732c8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e51d50,4,ffff800020e732c8,0,ffff800020e733b0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e51d50,ffff800020e73360,ffff800020e733b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e73430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e73430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4830, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e72cc0 rbx 0xffff800020e72d70 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff820f27ff kprintf+0x16f r9 0x1 r10 0x2 r11 0xf22184599ea9769f r12 0x3000000008 r13 0xffff800020e72cd0 r14 0x100 r15 0x1 rip 0xffffffff813b5e58 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e72cb0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (sshd) pid=145021 stat=onproc flags process=12 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020e50280,0xffff800020e50500 process=0xffff800020e48018 user=0xffff800020e6e000, vmspace=0xfffffd806e8f28a8 estcpu=1, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54230 11545 28550 0 7 0 syz-executor.0 64641 407821 0 0 3 0x14200 bored sosplice 65622 518629 37105 0 3 0x82 piperd syz-executor.1 28550 419181 37105 0 2 0x482 syz-executor.0 37105 208292 69942 0 2 0x2 syz-fuzzer 37105 138928 69942 0 2 0x4000482 syz-fuzzer 37105 418134 69942 0 3 0x4000082 thrsleep syz-fuzzer 37105 96756 69942 0 2 0x4000482 syz-fuzzer 37105 366822 69942 0 3 0x4000082 thrsleep syz-fuzzer 37105 257240 69942 0 3 0x4000082 thrsleep syz-fuzzer 37105 164690 69942 0 3 0x4000082 thrsleep syz-fuzzer 37105 356375 69942 0 3 0x4000082 kqread syz-fuzzer 37105 186675 69942 0 3 0x4000082 thrsleep syz-fuzzer 37105 227434 69942 0 3 0x4000082 thrsleep syz-fuzzer 69942 274011 75789 0 3 0x10008a pause ksh *75789 145021 63624 0 7 0x12 sshd 49109 357302 1 0 3 0x100083 ttyin getty 63624 61717 1 0 3 0x80 select sshd 40626 84995 38758 74 3 0x100092 bpf pflogd 38758 276955 1 0 3 0x80 netio pflogd 47755 466764 23568 73 3 0x100090 kqread syslogd 23568 443940 1 0 3 0x100082 netio syslogd 11344 334298 1 77 3 0x100090 poll dhclient 86967 120224 1 0 3 0x80 poll dhclient 28709 514452 0 0 3 0x14200 bored smr 38607 405383 0 0 3 0x14200 pgzero zerothread 60245 177987 0 0 3 0x14200 aiodoned aiodoned 24237 186311 0 0 3 0x14200 syncer update 61107 430138 0 0 3 0x14200 cleaner cleaner 57294 203042 0 0 3 0x14200 reaper reaper 52894 392524 0 0 3 0x14200 pgdaemon pagedaemon 35426 469420 0 0 3 0x14200 bored crynlk 81647 191934 0 0 3 0x14200 bored crypto 15036 389492 0 0 3 0x40014200 acpi0 acpi0 55008 263778 0 0 3 0x40014200 idle1 2085 284482 0 0 3 0x14200 bored softnet 53944 208194 0 0 3 0x14200 bored systqmp 98353 107873 0 0 3 0x14200 bored systq 74063 224782 0 0 3 0x40014200 bored softclock 94076 25936 0 0 3 0x40014200 idle0 1 256070 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 75789 (sshd) thread 0xffff800020e51d50 (145021) exclusive rwlock netlock r = 0 (0xffffffff827107f8) #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 sosend+0x559 sys/kern/uipc_socket.c:537 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9512 6413K 6730K 78643K 10866 0 pcb 13 8K 8K 78643K 57 0 rtable 96 3K 3K 78643K 289 0 ifaddr 66 13K 13K 78643K 85 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1485 0 iov 0 0K 16K 78643K 18 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1327 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 52 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 196 0 sigio 0 0K 0K 78643K 2 0 proc 60 63K 95K 78643K 444 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 6 0 in_multi 38 2K 2K 78643K 66 0 ether_multi 1 0K 0K 78643K 6 0 mrt 0 0K 0K 78643K 1 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 219 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 125 39K 41K 78643K 1633 0 UVM aobj 4 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 30 0 NDP 11 0K 0K 78643K 19 0 temp 95 3846K 3910K 78643K 4474 0 kqueue 3 4K 8K 78643K 5 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 10 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 61 0 23 2 0 2 2 0 8 0 unpcb 120 308 0 298 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 166 0 166 1 1 0 1 0 8 0 tcpcb 544 68 0 64 1 0 1 1 0 8 0 inpcb 280 210 0 203 3 1 2 2 0 8 1 nd6 48 8 0 4 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 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 pfstitem 24 28 0 15 1 0 1 1 0 8 0 pfstkey 112 28 0 15 1 0 1 1 0 8 0 pfstate 328 28 0 15 3 1 2 2 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 256 269 0 72 15 2 13 13 0 8 0 art_table 32 270 0 72 2 0 2 2 0 8 0 art_node 16 60 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 1 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1671 0 267 89 0 89 89 0 8 0 ffsino 272 1671 0 267 96 1 95 95 0 8 0 nchpl 144 2138 0 530 60 0 60 60 0 8 0 uvmvnodes 72 1778 0 0 33 0 33 33 0 8 0 vnodes 208 1778 0 0 94 0 94 94 0 8 0 namei 1024 6087 0 6087 3 2 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 6539 0 6539 13 10 3 7 0 8 3 plimitpl 152 29 0 21 1 0 1 1 0 8 0 sigapl 424 413 0 381 4 0 4 4 0 8 0 futexpl 56 2782 0 2782 3 2 1 1 0 8 1 knotepl 112 63 0 44 1 0 1 1 0 8 0 kqueuepl 144 24 0 22 1 0 1 1 0 8 0 pipelkpl 48 96 0 86 1 0 1 1 0 8 0 pipepl 120 192 0 173 1 0 1 1 0 8 0 fdescpl 496 396 0 380 3 0 3 3 0 8 0 filepl 152 2575 0 2475 5 0 5 5 0 8 1 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 37 0 26 1 0 1 1 0 8 0 ucredpl 96 510 0 501 1 0 1 1 0 8 0 zombiepl 144 381 0 381 1 0 1 1 0 8 1 processpl 984 413 0 381 5 0 5 5 0 8 0 procpl 624 857 0 816 4 0 4 4 0 8 0 srpgc 64 1 0 1 1 1 0 1 0 8 0 sosppl 128 6 0 6 2 2 0 1 0 8 0 sockpl 400 551 0 532 5 2 3 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 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 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 168 0 0 20 0 20 20 0 8 0 mtagpl 80 14 0 0 1 0 1 1 0 8 0 mbufpl 256 379 0 0 20 0 20 20 0 8 0 bufpl 280 3858 0 133 267 0 267 267 0 8 0 anonpl 16 59890 0 43600 82 14 68 80 0 124 1 amapchunkpl 152 2374 0 2216 15 1 14 14 0 158 6 amappl16 192 2291 0 1433 58 13 45 54 0 8 1 amappl15 184 3 0 1 1 0 1 1 0 8 0 amappl14 176 26 0 20 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 90 0 88 1 0 1 1 0 8 0 amappl11 152 66 0 50 1 0 1 1 0 8 0 amappl10 144 21 0 13 1 0 1 1 0 8 0 amappl9 136 386 0 385 1 0 1 1 0 8 0 amappl8 128 362 0 324 2 0 2 2 0 8 0 amappl7 120 126 0 114 1 0 1 1 0 8 0 amappl6 112 24 0 20 1 0 1 1 0 8 0 amappl5 104 378 0 362 1 0 1 1 0 8 0 amappl4 96 496 0 466 1 0 1 1 0 8 0 amappl3 88 103 0 97 1 0 1 1 0 8 0 amappl2 80 2191 0 2130 2 0 2 2 0 8 0 amappl1 72 18844 0 18418 23 12 11 18 0 8 0 amappl 80 1110 0 1064 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 400 0 380 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 400 0 380 1 0 1 1 0 8 0 vmmpekpl 168 7210 0 7177 2 0 2 2 0 8 0 vmmpepl 168 55693 0 53699 133 37 96 114 0 357 4 vmsppl 368 399 0 380 2 0 2 2 0 8 0 pdppl 4096 807 0 764 6 0 6 6 0 8 0 pvpl 32 187520 0 168682 191 30 161 190 0 265 7 pmappl 232 399 0 380 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 273 0 10 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82769ff0) 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_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,6e) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(6e) at cnputc+0x4c sys/dev/cons.c:239 kputchar(6e,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff823e4585) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823e4585) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff8244cfc2,ffffffff8243237d,29e,ffffffff8240fd1b) at __assert+0x2b sys/kern/subr_prf.c:154 proc_trampoline_mp() at proc_trampoline_mp+0x123 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff82769ff0) 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_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,6e) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(6e) at cnputc+0x4c sys/dev/cons.c:239 kputchar(6e,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x1b7c sys/kern/subr_prf.c:1052 panic(ffffffff823e4585) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823e4585) at panic+0xf3 sys/kern/subr_prf.c:197 __assert(ffffffff8244cfc2,ffffffff8243237d,29e,ffffffff8240fd1b) at __assert+0x2b sys/kern/subr_prf.c:154 proc_trampoline_mp() at proc_trampoline_mp+0x123 end trace frame: 0x0, count: -11 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(ffffffff823e1c6d) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828f5cf8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad7320) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae3648,9,fffffd8069de3100,0,0,ffff800020e51d50) at tcp_usrreq+0xa55 sosend(fffffd806eae3648,0,ffff800020e732c8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e51d50,4,ffff800020e732c8,0,ffff800020e733b0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e51d50,ffff800020e73360,ffff800020e733b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e73430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e73430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4830, count: 3 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff823e1c6d) at panic+0x15c sys/kern/subr_prf.c:207 pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828f5cf8) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828f5cf8,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad7320) at tcp_output+0x14e6 tcp_usrreq(fffffd806eae3648,9,fffffd8069de3100,0,0,ffff800020e51d50) at tcp_usrreq+0xa55 sosend(fffffd806eae3648,0,ffff800020e732c8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:549 dofilewritev(ffff800020e51d50,4,ffff800020e732c8,0,ffff800020e733b0) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e51d50,ffff800020e73360,ffff800020e733b0) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e73430) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e73430) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd4830, count: -12