panic: malloc: allocation too large, type = 2, size = 1768304430 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 380755 44866 0 0 0 0 syz-executor *161480 44866 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff8000012fa000) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff8000012fa000,ffff80003c672450) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c672450,41,ffff80003c5911f0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd805eb5b7d0,8020426c,ffff80003c672450,41,fffffd807f7d3340,ffff80003c5911f0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bbf7b60,8020426c,ffff80003c672450,ffff80003c5911f0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c5911f0,ffff80003c672630,ffff80003c672580) at sys_ioctl+0x5c3 syscall(ffff80003c672630) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c672630) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf89c181fdf0, 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 *cpu1: malloc: allocation too large, type = 2, size = 1768304430 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff8000012fa000) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff8000012fa000,ffff80003c672450) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c672450,41,ffff80003c5911f0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd805eb5b7d0,8020426c,ffff80003c672450,41,fffffd807f7d3340,ffff80003c5911f0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bbf7b60,8020426c,ffff80003c672450,ffff80003c5911f0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c5911f0,ffff80003c672630,ffff80003c672580) at sys_ioctl+0x5c3 syscall(ffff80003c672630) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c672630) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf89c181fdf0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c671fd0 rbx 0xffff800029b5cdc7 rdx 0xffff80000129b880 rcx 0xffff80003c5911f0 rax 0xffff800029b5bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa6ee2b3cb017ed9f r11 0xa5e7d09fe335930c r12 0xffff800029b5cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82a6fbd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c671fc0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=161480 pid=44866 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c590f68,0xffffffff8360c558 process=0xffff80002ed57db8 user=0xffff80003c66d000, vmspace=0xfffffd807eb8d720 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44866 380755 27988 0 7 0 syz-executor *44866 161480 27988 0 7 0x4000000 syz-executor 61183 164513 9898 0 2 0 syz-executor 61183 509626 9898 0 3 0x4000080 fsleep syz-executor 64124 55678 13626 0 2 0 syz-executor 64124 45799 13626 0 3 0x4000080 fsleep syz-executor 99342 295378 75866 0 2 0 syz-executor 99342 367920 75866 0 3 0x4000080 fsleep syz-executor 49163 210135 8056 0 2 0x10 syz-executor 49163 296848 8056 0 3 0x4000090 fsleep syz-executor 49163 463846 8056 0 3 0x4000090 pipewr syz-executor 46942 396785 0 0 3 0x14200 acct acct 81745 486487 60995 0 3 0x80 nanoslp syz-executor 81745 294816 60995 0 3 0x4000080 rest syz-executor 81745 328938 60995 0 3 0x4000080 fsleep syz-executor 81745 253872 60995 0 3 0x4000080 fsleep syz-executor 34225 493666 49074 0 2 0 syz-executor 34225 279127 49074 0 3 0x4000080 fifow syz-executor 34225 190128 49074 0 3 0x4000080 fsleep syz-executor 18909 287520 0 0 3 0x14200 bored sosplice 9898 98908 2349 0 3 0x82 nanoslp syz-executor 59031 137678 2349 0 3 0x82 nanoslp syz-executor 8056 313933 2349 0 3 0x82 nanoslp syz-executor 27988 175810 2349 0 3 0x82 nanoslp syz-executor 60995 20657 2349 0 3 0x82 nanoslp syz-executor 13626 133581 2349 0 3 0x82 nanoslp syz-executor 49074 94837 2349 0 3 0x82 nanoslp syz-executor 75866 63753 2349 0 3 0x82 nanoslp syz-executor 2349 89059 7191 0 3 0x82 kqread syz-executor 7191 60835 51574 0 3 0x10008a sigsusp ksh 51574 351447 60296 0 3 0x98 kqread sshd-session 60296 340954 93538 0 3 0x92 kqread sshd-session 82944 320621 1 0 3 0x100083 ttyin getty 93538 319543 1 0 3 0x88 kqread sshd 83630 64350 67440 74 3 0x1100092 bpf pflogd 67440 310275 1 0 3 0x80 sbwait pflogd 70080 440734 61405 73 3 0x1100090 kqread syslogd 61405 63884 1 0 3 0x100082 sbwait syslogd 14808 131918 1 0 3 0x100080 kqread resolvd 29008 27052 15542 77 3 0x100092 kqread dhcpleased 45026 207931 15542 77 3 0x100092 kqread dhcpleased 15542 132640 1 0 3 0x80 kqread dhcpleased 54803 81048 0 0 3 0x14200 bored smr 75732 444796 0 0 2 0x14200 zerothread 57891 284962 0 0 3 0x14200 aiodoned aiodoned 3306 378248 0 0 3 0x14200 syncer update 42806 107363 0 0 3 0x14200 cleaner cleaner 43445 446496 0 0 3 0x14200 reaper reaper 91020 426147 0 0 3 0x14200 pgdaemon pagedaemon 57357 145238 0 0 3 0x14200 bored viomb 56343 318365 0 0 3 0x40014200 acpi0 acpi0 18278 345686 0 0 3 0x40014200 idle1 49814 317137 0 0 3 0x14200 bored softnet3 71899 445388 0 0 3 0x14200 bored softnet2 46187 350926 0 0 3 0x14200 bored softnet1 52260 279144 0 0 3 0x14200 bored softnet0 33028 5862 0 0 3 0x14200 bored systqmp 18046 487286 0 0 3 0x14200 bored systq 79113 217763 0 0 3 0x14200 tmoslp softclockmp 81508 522134 0 0 3 0x40014200 tmoslp softclock 4794 413173 0 0 3 0x40014200 idle0 1 89381 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &bd->bd_mtx r = 0 (0xffff8000012fa018) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 bpf_setif+0x97 sys/net/bpf.c:1200 #4 bpfioctl+0xd2a sys/net/bpf.c:955 #5 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #6 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #7 sys_ioctl+0x5c3 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 44866 (syz-executor) thread 0xffff80003c5911f0 (161480) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 11111K 11450K 166960K 12394 0 pcb 17 14K 15K 166960K 125 0 rtable 228 7K 7K 166960K 523 0 pf 35 17K 20K 166960K 78 0 ifaddr 40 7K 8K 166960K 60 0 ifgroup 51 2K 2K 166960K 76 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1595 0 iov 0 0K 24K 166960K 172 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1459 92K 92K 166960K 2283 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 39 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 89K 166960K 835 0 sigio 0 0K 0K 166960K 11 0 proc 72 91K 152K 166960K 593 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 107 0 in_multi 92 6K 7K 166960K 128 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 497 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 247 73K 87K 166960K 9476 0 UVM aobj 29 6K 6K 166960K 29 0 pinsyscall 43 86K 102K 166960K 1943 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 45 0 NDP 11 0K 1K 166960K 39 0 temp 62 6896K 6967K 166960K 28972 0 kqueue 14 22K 28K 166960K 159 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 74 0 71 1 0 1 1 0 8 0 rtentry 112 183 0 78 4 0 4 4 0 8 0 unpcb 144 684 0 665 7 3 4 4 0 8 3 syncache 336 10 0 10 2 1 1 1 0 8 1 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 168 0 160 2 0 2 2 0 8 1 arp 120 39 0 24 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 376 830 0 818 13 5 8 8 0 8 6 nd6 136 29 0 5 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 6 0 6 1 1 0 1 0 8 0 pfstscr 40 2 0 2 2 1 1 1 0 8 1 pffrag 232 4 0 2 1 0 1 1 0 482 0 pffrnode 88 4 0 2 1 0 1 1 0 8 0 pffrent 40 7 0 5 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 61 0 18 1 0 1 1 0 8 0 pfstkey 128 67 0 25 2 0 2 2 0 8 0 pfstate 376 62 0 21 5 0 5 5 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 499 0 91 29 0 29 29 0 8 1 art_table 32 501 0 91 4 0 4 4 0 8 0 art_node 16 182 0 90 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 35 0 25 1 0 1 1 0 8 0 shmpl 112 26 0 0 1 0 1 1 0 8 0 dirhash 1024 28 0 11 3 0 3 3 0 8 0 dino2pl 256 2965 0 1463 95 0 95 95 0 8 0 ffsino 280 2965 0 1463 109 0 109 109 0 8 0 nchpl 144 4200 0 2509 63 0 63 63 0 8 0 uvmvnodes 80 3650 0 0 75 0 75 75 0 8 0 vnodes 216 3650 0 0 203 0 203 203 0 8 0 namei 1024 15111 0 15111 3 2 1 2 0 8 1 percpumem 16 54 0 9 1 0 1 1 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 12028 0 12028 10 9 1 8 1 8 1 plimitpl 152 172 0 153 1 0 1 1 0 8 0 sigapl 424 1163 0 1111 10 1 9 9 0 8 2 futexpl 64 11531 0 11524 1 0 1 1 0 8 0 knotepl 120 784 0 0 24 0 24 24 0 8 0 kqueuepl 216 287 0 276 5 0 5 5 0 8 4 pipepl 328 269 0 241 11 5 6 8 0 8 3 fdescpl 504 1121 0 1089 5 0 5 5 0 8 0 filepl 152 7505 0 7280 27 12 15 21 0 8 5 lockfpl 104 336 0 334 1 0 1 1 0 8 0 lockfspl 48 127 0 125 1 0 1 1 0 8 0 sessionpl 144 28 0 19 1 0 1 1 0 8 0 pgrppl 48 40 0 23 1 0 1 1 0 8 0 ucredpl 104 1387 0 1373 1 0 1 1 0 8 0 zombiepl 144 1112 0 1111 1 0 1 1 0 8 0 processpl 1168 1163 0 1111 6 0 6 6 0 8 1 procpl 648 2389 0 2326 9 1 8 8 0 8 2 srpgc 96 6 0 6 2 1 1 1 0 8 1 sosppl 168 5 0 5 2 2 0 1 0 8 0 sockpl 688 1600 0 1566 16 6 10 10 0 8 5 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 0 8 0 mcl2k 2048 37 0 0 4 0 4 4 0 8 0 mtagpl 96 28 0 0 1 0 1 1 0 8 0 mbufpl 256 1232 0 0 77 0 77 77 0 8 0 bufpl 280 3891 0 133 269 0 269 269 0 8 0 anonpl 24 173837 0 169331 71 19 52 52 0 185 20 amapchunkpl 152 30525 0 29921 33 6 27 29 0 158 1 amappl16 200 3289 0 3248 30 15 15 15 0 8 12 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 128 0 116 1 0 1 1 0 8 0 amappl13 176 43 0 43 1 1 0 1 0 8 0 amappl12 168 1767 0 1735 4 1 3 3 0 8 0 amappl11 160 82 0 68 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 243 0 243 1 1 0 1 0 8 0 amappl8 136 30 0 27 1 0 1 1 0 8 0 amappl7 128 113 0 100 1 0 1 1 0 8 0 amappl6 120 202 0 198 1 0 1 1 0 8 0 amappl5 112 126 0 117 1 0 1 1 0 8 0 amappl4 104 367 0 347 1 0 1 1 0 8 0 amappl3 96 6041 0 5915 4 0 4 4 0 8 0 amappl2 88 698 0 634 2 0 2 2 0 8 0 amappl1 80 11377 0 10808 14 0 14 14 0 8 0 amappl 88 9011 0 8820 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 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 72 28 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1121 0 1089 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1121 0 1089 1 0 1 1 0 8 0 vmmpekpl 168 11187 0 11147 3 0 3 3 0 8 0 vmmpepl 168 75104 0 73154 100 4 96 96 0 357 5 vmsppl 456 1120 0 1089 6 1 5 5 0 8 1 rwobjpl 64 26136 0 21490 79 1 78 78 0 8 3 pdppl 4096 2249 0 2178 101 28 73 83 0 8 2 pvpl 32 15465 0 0 126 1 125 125 0 265 0 pmappl 248 1120 0 1089 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 351 0 36 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834ccff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:149 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7ea4d8eb0290, count: 9 ddb{0}> trace x86_ipi_db(ffffffff834ccff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:149 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7ea4d8eb0290, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff8000012fa000) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff8000012fa000,ffff80003c672450) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c672450,41,ffff80003c5911f0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd805eb5b7d0,8020426c,ffff80003c672450,41,fffffd807f7d3340,ffff80003c5911f0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bbf7b60,8020426c,ffff80003c672450,ffff80003c5911f0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c5911f0,ffff80003c672630,ffff80003c672580) at sys_ioctl+0x5c3 syscall(ffff80003c672630) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c672630) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf89c181fdf0, count: 4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8309c038) at panic+0x1e5 sys/kern/subr_prf.c:198 malloc(69662f2e,2,2) at malloc+0xcf4 sys/kern/kern_malloc.c:334 bpf_allocbufs(ffff8000012fa000) at bpf_allocbufs+0x85 sys/net/bpf.c:1659 bpf_setif(ffff8000012fa000,ffff80003c672450) at bpf_setif+0x17d sys/net/bpf.c:1201 bpfioctl(41700,8020426c,ffff80003c672450,41,ffff80003c5911f0) at bpfioctl+0xd2a sys/net/bpf.c:955 VOP_IOCTL(fffffd805eb5b7d0,8020426c,ffff80003c672450,41,fffffd807f7d3340,ffff80003c5911f0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806bbf7b60,8020426c,ffff80003c672450,ffff80003c5911f0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80003c5911f0,ffff80003c672630,ffff80003c672580) at sys_ioctl+0x5c3 syscall(ffff80003c672630) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c672630) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf89c181fdf0, count: -11