login: panic: m_copym0: m == NULL and not COPYALL Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 461681 53484 0 0x2 0x4000000 0K syz-fuzzer *257566 28340 0 0x12 0 1 sshd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82446645) at panic+0x164 sys/kern/subr_prf.c:218 m_copym(fffffd806f2d3200,154,50c,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ad7ee0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eae3c88,9,fffffd807d65be00,0,0,ffff800020e4e120) at tcp_usrreq+0xa55 sosend(fffffd806eae3c88,0,ffff800020e24aa8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4e120,4,ffff800020e24aa8,0,ffff800020e24b90) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4e120,ffff800020e24b40,ffff800020e24b90) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24c10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24c10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb8de0, 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 m_copym0: m == NULL and not COPYALL ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82446645) at panic+0x164 sys/kern/subr_prf.c:218 m_copym(fffffd806f2d3200,154,50c,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ad7ee0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eae3c88,9,fffffd807d65be00,0,0,ffff800020e4e120) at tcp_usrreq+0xa55 sosend(fffffd806eae3c88,0,ffff800020e24aa8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4e120,4,ffff800020e24aa8,0,ffff800020e24b90) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4e120,ffff800020e24b40,ffff800020e24b90) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24c10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24c10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb8de0, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e24570 rbx 0xffff800020e24620 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffff800020e24530 r9 0xffffffff81379bbf kprintf+0x16f r10 0x1 r11 0x673f4ec5da1da346 r12 0x3000000008 r13 0xffff800020e24580 r14 0x100 r15 0x1 rip 0xffffffff81f0e6b8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e24560 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (sshd) pid=257566 stat=onproc flags process=12 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e4d760,0xffff800020e4d9e0 process=0xffff8000ffffe018 user=0xffff800020e1f000, vmspace=0xfffffd806e8eeb88 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60514 128373 73093 0 2 0 syz-executor.0 42345 320039 0 0 3 0x14200 acct acct 93450 443548 53484 0 2 0x2 syz-executor.1 73093 60346 53484 0 3 0x82 nanosleep syz-executor.0 53484 135175 49312 0 3 0x82 thrsleep syz-fuzzer 53484 130269 49312 0 3 0x4000082 nanosleep syz-fuzzer 53484 461681 49312 0 7 0x4000002 syz-fuzzer 53484 369342 49312 0 3 0x4000082 thrsleep syz-fuzzer 53484 518870 49312 0 3 0x4000082 thrsleep syz-fuzzer 53484 427454 49312 0 3 0x4000082 thrsleep syz-fuzzer 53484 362286 49312 0 3 0x4000082 thrsleep syz-fuzzer 53484 295743 49312 0 3 0x4000082 nanosleep syz-fuzzer 49312 430249 28340 0 3 0x10008a pause ksh *28340 257566 258 0 7 0x12 sshd 78106 521835 1 0 3 0x100083 ttyin getty 258 129813 1 0 3 0x80 select sshd 81406 215305 80883 74 3 0x100092 bpf pflogd 80883 38743 1 0 3 0x80 netio pflogd 1703 279106 65098 73 3 0x100090 kqread syslogd 65098 113785 1 0 3 0x100082 netio syslogd 2253 170632 1 77 3 0x100090 poll dhclient 92210 496036 1 0 3 0x80 poll dhclient 48769 121173 0 0 3 0x14200 bored smr 69234 258077 0 0 2 0x14200 zerothread 91092 390356 0 0 3 0x14200 aiodoned aiodoned 14610 84469 0 0 3 0x14200 syncer update 64438 487286 0 0 3 0x14200 cleaner cleaner 50994 191234 0 0 3 0x14200 reaper reaper 51395 27951 0 0 3 0x14200 pgdaemon pagedaemon 84910 164555 0 0 3 0x14200 bored crynlk 20715 451225 0 0 3 0x14200 bored crypto 30325 206140 0 0 3 0x40014200 acpi0 acpi0 80978 382425 0 0 3 0x40014200 idle1 91319 265836 0 0 3 0x14200 bored softnet 39834 314609 0 0 3 0x14200 bored systqmp 11957 197019 0 0 3 0x14200 bored systq 75732 429943 0 0 3 0x40014200 bored softclock 66970 326612 0 0 3 0x40014200 idle0 1 267079 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 93450 (syz-executor.1) thread 0xffff800020ddc278 (443548) exclusive rrwlock inode r = 0 (0xfffffd806ca341a8) #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 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ca34b38) #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 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #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 Process 28340 (sshd) thread 0xffff800020e4e120 (257566) exclusive rwlock netlock r = 0 (0xffffffff82716f68) #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:543 #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 9507 6419K 7390K 78643K 11337 0 pcb 13 8K 8K 78643K 62 0 rtable 90 4K 5K 78643K 275 0 ifaddr 71 14K 14K 78643K 96 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1493 0 iov 0 0K 16K 78643K 18 0 mount 1 1K 1K 78643K 1 0 vnodes 1233 78K 78K 78643K 1408 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 0K 78643K 26 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 199 0 sigio 0 0K 0K 78643K 22 0 proc 61 63K 95K 78643K 464 0 subproc 32 2K 2K 78643K 38 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 40 2K 2K 78643K 76 0 ether_multi 1 0K 0K 78643K 4 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 152 26K 30K 78643K 1617 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 16 0 NDP 11 0K 0K 78643K 18 0 temp 125 3863K 3927K 78643K 2765 0 kqueue 3 4K 8K 78643K 11 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 6 0 0 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 55 0 22 2 0 2 2 0 8 0 unpcb 120 139 0 129 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 258 0 258 3 3 0 2 0 8 0 tcpcb 544 58 0 54 2 0 2 2 0 8 1 inpcb 296 224 0 217 4 3 1 3 0 8 0 nd6 48 9 0 5 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 46 0 45 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 5 0 2 1 0 1 1 0 8 0 pfstitem 24 12 0 3 1 0 1 1 0 8 0 pfstkey 112 12 0 3 1 0 1 1 0 8 0 pfstate 328 12 0 3 1 0 1 1 0 8 0 pfsrctr 152 57 0 53 1 0 1 1 0 8 0 pfrule 1360 25 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 268 0 105 12 0 12 12 0 8 1 art_table 32 269 0 105 2 0 2 2 0 8 0 art_node 16 54 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 60 0 20 1 0 1 1 0 8 0 semupl 112 4 0 4 2 2 0 1 0 8 0 semapl 112 20 0 10 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 1639 0 234 89 0 89 89 0 8 1 ffsino 272 1639 0 234 94 0 94 94 0 8 0 nchpl 144 2133 0 536 60 0 60 60 0 8 0 uvmvnodes 72 1857 0 0 34 0 34 34 0 8 0 vnodes 208 1857 0 0 98 0 98 98 0 8 0 namei 1024 5807 0 5807 1 0 1 1 0 8 1 percpumem 16 34 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 scxspl 192 6039 0 6039 5 4 1 4 0 8 1 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 424 415 0 383 4 0 4 4 0 8 0 futexpl 56 2548 0 2548 1 0 1 1 0 8 1 knotepl 112 71 0 51 1 0 1 1 0 8 0 kqueuepl 144 28 0 26 1 0 1 1 0 8 0 pipepl 304 87 0 76 3 1 2 2 0 8 1 fdescpl 496 399 0 383 3 0 3 3 0 8 0 filepl 152 2250 0 2148 6 1 5 6 0 8 1 lockfpl 104 23 0 22 1 0 1 1 0 8 0 lockfspl 48 9 0 8 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 96 146 0 137 1 0 1 1 0 8 0 zombiepl 144 383 0 383 1 0 1 1 0 8 1 processpl 992 415 0 383 5 0 5 5 0 8 0 procpl 624 797 0 758 4 0 4 4 0 8 0 sockpl 400 396 0 377 5 2 3 5 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k 2048 259 0 0 32 0 32 32 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 279 0 0 16 0 16 16 0 8 0 bufpl 280 3513 0 127 242 0 242 242 0 8 0 anonpl 16 63919 0 45463 94 1 93 93 0 124 17 amapchunkpl 152 3114 0 2818 26 6 20 26 0 158 7 amappl16 192 2114 0 1240 60 8 52 56 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 78 0 76 1 0 1 1 0 8 0 amappl13 168 36 0 32 1 0 1 1 0 8 0 amappl12 160 22 0 18 1 0 1 1 0 8 0 amappl11 152 134 0 117 1 0 1 1 0 8 0 amappl10 144 111 0 104 1 0 1 1 0 8 0 amappl9 136 359 0 357 1 0 1 1 0 8 0 amappl8 128 336 0 302 2 0 2 2 0 8 0 amappl7 120 203 0 190 1 0 1 1 0 8 0 amappl6 112 38 0 29 1 0 1 1 0 8 0 amappl5 104 233 0 218 1 0 1 1 0 8 0 amappl4 96 557 0 532 1 0 1 1 0 8 0 amappl3 88 205 0 194 1 0 1 1 0 8 0 amappl2 80 2240 0 2173 2 0 2 2 0 8 0 amappl1 72 20662 0 20227 24 14 10 18 0 8 0 amappl 80 1096 0 1018 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 399 0 383 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 399 0 383 1 0 1 1 0 8 0 vmmpekpl 168 7096 0 7065 2 0 2 2 0 8 0 vmmpepl 168 57852 0 55793 116 9 107 108 0 357 16 vmsppl 368 398 0 383 2 0 2 2 0 8 0 pdppl 4096 805 0 766 6 0 6 6 0 8 1 pvpl 32 191797 0 170209 216 0 216 216 0 265 38 pmappl 232 398 0 383 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 275 0 5 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82752ff0) 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(fffffd806e8c8cf0,40,c00004f638,ffff800020e7fdc0,ffff800020e4d4f0,ffff800020e7fe0c) at kqueue_scan+0x2c1 sys/kern/kern_event.c:930 sys_kevent(ffff800020e4d4f0,ffff800020e7fe80,ffff800020e7fed0) at sys_kevent+0x464 sys/kern/kern_event.c:640 syscall(ffff800020e7ff50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e7ff50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004fe38, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82752ff0) 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(fffffd806e8c8cf0,40,c00004f638,ffff800020e7fdc0,ffff800020e4d4f0,ffff800020e7fe0c) at kqueue_scan+0x2c1 sys/kern/kern_event.c:930 sys_kevent(ffff800020e4d4f0,ffff800020e7fe80,ffff800020e7fed0) at sys_kevent+0x464 sys/kern/kern_event.c:640 syscall(ffff800020e7ff50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e7ff50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00004fe38, 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(ffffffff82446645) at panic+0x164 sys/kern/subr_prf.c:218 m_copym(fffffd806f2d3200,154,50c,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ad7ee0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eae3c88,9,fffffd807d65be00,0,0,ffff800020e4e120) at tcp_usrreq+0xa55 sosend(fffffd806eae3c88,0,ffff800020e24aa8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4e120,4,ffff800020e24aa8,0,ffff800020e24b90) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4e120,ffff800020e24b40,ffff800020e24b90) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24c10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24c10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb8de0, count: 5 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82446645) at panic+0x164 sys/kern/subr_prf.c:218 m_copym(fffffd806f2d3200,154,50c,2) at m_copym+0x5b9 sys/kern/uipc_mbuf.c:664 tcp_output(ffff800000ad7ee0) at tcp_output+0x15ba sys/netinet/tcp_output.c:673 tcp_usrreq(fffffd806eae3c88,9,fffffd807d65be00,0,0,ffff800020e4e120) at tcp_usrreq+0xa55 sosend(fffffd806eae3c88,0,ffff800020e24aa8,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e4e120,4,ffff800020e24aa8,0,ffff800020e24b90) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e4e120,ffff800020e24b40,ffff800020e24b90) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e24c10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e24c10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb8de0, count: -10