login: panic: pool_do_get: mbufpl free list modified: page 0xfffffd80782df000; item addr 0xfffffd80782dff00; offset 0x0=0x0 != 0xb637d50060c7693e Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 116397 23983 0 0x2 0x480 1 syz-execprog *327571 13799 0 0x14000 0x40000200 0K softclock db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82494539) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff8292d3b8,2,ffff800020d975f8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff8292d3b8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 mld6_sendpkt(ffff800000a9f800,83,0) at mld6_sendpkt+0x8e sys/netinet6/mld6.c:405 mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer sys/netinet6/mld6.c:363 [inline] mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341 pffasttimo(ffffffff827dc0e0) at pffasttimo+0x85 sys/kern/uipc_domain.c:292 timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 sys/kern/kern_timeout.c:490 softclock_thread(ffff800020d89380) at softclock_thread+0x16a sys/kern/kern_timeout.c:580 end trace frame: 0x0, 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 pool_do_get: mbufpl free list modified: page 0xfffffd80782df000; item addr 0xfffffd80782dff00; offset 0x0=0x0 != 0xb637d50060c7693e ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff82494539) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff8292d3b8,2,ffff800020d975f8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff8292d3b8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 mld6_sendpkt(ffff800000a9f800,83,0) at mld6_sendpkt+0x8e sys/netinet6/mld6.c:405 mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer sys/netinet6/mld6.c:363 [inline] mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341 pffasttimo(ffffffff827dc0e0) at pffasttimo+0x85 sys/kern/uipc_domain.c:292 timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 sys/kern/kern_timeout.c:490 softclock_thread(ffff800020d89380) at softclock_thread+0x16a sys/kern/kern_timeout.c:580 end trace frame: 0x0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020d97440 rbx 0xffff800020d974f0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff816102df kprintf+0x16f r9 0x1 r10 0x2 r11 0x1365b2c0fcec786a r12 0x3000000008 r13 0xffff800020d97450 r14 0x100 r15 0x1 rip 0xffffffff81fed948 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020d97430 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (softclock) pid=327571 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020d895f0,0xffff800020d89120 process=0xffff800020d8a000 user=0xffff800020d92000, vmspace=0xffffffff8291b868 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1318 366580 23983 0 2 0x482 syz-executor.0 23983 116397 96192 0 7 0x482 syz-execprog 23983 411267 96192 0 3 0x4000082 nanosleep syz-execprog 23983 97847 96192 0 3 0x4000082 thrsleep syz-execprog 23983 350784 96192 0 3 0x4000082 thrsleep syz-execprog 23983 321330 96192 0 3 0x4000082 thrsleep syz-execprog 23983 512927 96192 0 3 0x4000082 kqread syz-execprog 23983 96735 96192 0 3 0x4000082 thrsleep syz-execprog 23983 499242 96192 0 3 0x4000082 thrsleep syz-execprog 23983 216379 96192 0 3 0x4000082 thrsleep syz-execprog 96192 367017 66570 0 3 0x10008a pause ksh 66570 81610 13382 0 3 0x92 select sshd 26958 335749 1 0 3 0x100083 ttyin getty 13382 449128 1 0 3 0x80 select sshd 21750 393839 28379 74 3 0x100092 bpf pflogd 28379 101014 1 0 3 0x80 netio pflogd 11424 44576 77611 73 3 0x100090 kqread syslogd 77611 517462 1 0 3 0x100082 netio syslogd 37038 250235 1 77 3 0x100090 poll dhclient 95305 337796 1 0 3 0x80 poll dhclient 26492 141813 0 0 3 0x14200 bored smr 21975 459143 0 0 3 0x14200 pgzero zerothread 66110 6651 0 0 3 0x14200 aiodoned aiodoned 76502 320270 0 0 3 0x14200 syncer update 2856 371456 0 0 3 0x14200 cleaner cleaner 64702 513808 0 0 3 0x14200 reaper reaper 43759 209578 0 0 3 0x14200 pgdaemon pagedaemon 63288 343180 0 0 3 0x14200 bored crynlk 40241 454084 0 0 3 0x14200 bored crypto 73120 22935 0 0 3 0x40014200 acpi0 acpi0 39201 267119 0 0 3 0x40014200 idle1 73137 147799 0 0 3 0x14200 bored softnet 93450 155918 0 0 3 0x14200 bored systqmp 45615 219440 0 0 3 0x14200 bored systq *13799 327571 0 0 7 0x40014200 softclock 78824 134172 0 0 3 0x40014200 idle0 1 6520 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex mbufpl r = 0 (0xffffffff8292d3c8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbf sys/kern/subr_pool.c:578 #4 m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 #5 mld6_sendpkt+0x8e sys/netinet6/mld6.c:405 #6 mld6_fasttimeo+0x162 mld6_checktimer sys/netinet6/mld6.c:363 [inline] #6 mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341 #7 pffasttimo+0x85 sys/kern/uipc_domain.c:292 #8 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] #8 timeout_run+0xc4 sys/kern/kern_timeout.c:490 #9 softclock_thread+0x16a sys/kern/kern_timeout.c:580 #10 proc_trampoline+0x1c Process 13799 (softclock) thread 0xffff800020d89380 (327571) exclusive rwlock netlock r = 0 (0xffffffff82700598) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mld6_fasttimeo+0x1d sys/netinet6/mld6.c:336 #2 pffasttimo+0x85 sys/kern/uipc_domain.c:292 #3 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] #3 timeout_run+0xc4 sys/kern/kern_timeout.c:490 #4 softclock_thread+0x16a sys/kern/kern_timeout.c:580 #5 proc_trampoline+0x1c shared rwlock timeout r = 0 (0xffffffff827a6948) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 timeout_run+0xb9 sys/kern/kern_timeout.c:489 #2 softclock_thread+0x16a sys/kern/kern_timeout.c:580 #3 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828c5528) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x392 sys/kern/sched_bsd.c:435 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 softclock_thread+0x103 sys/kern/kern_timeout.c:575 #5 proc_trampoline+0x1c exclusive mutex mbufpl r = 0 (0xffffffff8292d3c8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pool_get+0xbf sys/kern/subr_pool.c:578 #4 m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 #5 mld6_sendpkt+0x8e sys/netinet6/mld6.c:405 #6 mld6_fasttimeo+0x162 mld6_checktimer sys/netinet6/mld6.c:363 [inline] #6 mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341 #7 pffasttimo+0x85 sys/kern/uipc_domain.c:292 #8 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] #8 timeout_run+0xc4 sys/kern/kern_timeout.c:490 #9 softclock_thread+0x16a sys/kern/kern_timeout.c:580 #10 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9464 6394K 6394K 78643K 10557 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 46 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 iov 0 0K 0K 78643K 8 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 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 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 2 4K 12K 78643K 25 0 proc 59 63K 83K 78643K 398 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 197 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 74 12K 12K 78643K 957 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 7 0 temp 29 3849K 3913K 78643K 1888 0 kqueue 3 4K 4K 78643K 3 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 4 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 296 41 0 35 1 0 1 1 0 8 0 nd6 48 3 0 0 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 11 0 1 1 0 1 1 0 8 0 pfstkey 112 11 0 1 1 0 1 1 0 8 0 pfstate 328 11 0 1 1 0 1 1 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1431 0 29 88 0 88 88 0 8 0 ffsino 272 1431 0 29 94 0 94 94 0 8 0 nchpl 144 1657 0 53 60 0 60 60 0 8 0 uvmvnodes 72 1441 0 0 27 0 27 27 0 8 0 vnodes 208 1441 0 0 76 0 76 76 0 8 0 namei 1024 4258 0 4258 2 1 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 192 4709 0 4709 8 1 7 7 0 8 7 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 424 248 0 219 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 304 77 0 70 2 1 1 1 0 8 0 fdescpl 496 233 0 219 3 0 3 3 0 8 0 filepl 152 1130 0 1072 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 219 0 218 2 1 1 1 0 8 0 processpl 992 248 0 218 5 0 5 5 0 8 1 procpl 624 256 0 218 4 0 4 4 0 8 1 sockpl 400 87 0 69 2 0 2 2 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 78 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 119 0 0 7 0 7 7 0 8 0 mbufpl: pool(0xffffffff8292d3b8:mbufpl): free list modified: page 0xfffffd80782df000; item ordinal 0; addr 0xfffffd80782dff00 (p 0xfffffd806db31000); offset 0x0=0x0 mbufpl: pool(0xffffffff8292d3b8:mbufpl): page inconsistency: page 0xfffffd80782df000; item ordinal 1; addr 0x3b32e784a1 bufpl 280 3055 0 132 209 0 209 209 0 8 0 anonpl 16 22700 0 21019 14 2 12 12 0 124 3 amapchunkpl 152 869 0 803 5 0 5 5 0 158 1 amappl16 192 175 0 138 3 0 3 3 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 26 0 23 1 0 1 1 0 8 0 amappl13 168 22 0 20 2 1 1 1 0 8 0 amappl12 160 30 0 26 2 1 1 1 0 8 0 amappl11 152 71 0 55 1 0 1 1 0 8 0 amappl10 144 16 0 13 1 0 1 1 0 8 0 amappl9 136 231 0 230 1 0 1 1 0 8 0 amappl8 128 271 0 263 1 0 1 1 0 8 0 amappl7 120 115 0 103 1 0 1 1 0 8 0 amappl6 112 20 0 19 2 1 1 1 0 8 0 amappl5 104 143 0 129 1 0 1 1 0 8 0 amappl4 96 493 0 467 1 0 1 1 0 8 0 amappl3 88 104 0 99 1 0 1 1 0 8 0 amappl2 80 928 0 869 3 1 2 2 0 8 0 amappl1 72 15600 0 15180 24 6 18 18 0 8 8 amappl 80 484 0 456 1 0 1 1 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 233 0 219 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 233 0 219 1 0 1 1 0 8 0 vmmpekpl 168 6425 0 6397 2 0 2 2 0 8 0 vmmpepl 168 33417 0 32472 87 14 73 73 0 357 29 vmsppl 368 232 0 219 2 0 2 2 0 8 0 pdppl 4096 473 0 438 6 0 6 6 0 8 1 pvpl 32 114740 0 110681 111 7 104 104 0 265 69 pmappl 232 232 0 219 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 235 0 4 7 0 7 7 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(ffffffff82494539) at panic+0x15c sys/kern/subr_prf.c:207 pool_do_get(ffffffff8292d3b8,2,ffff800020d975f8) at pool_do_get+0x439 sys/kern/subr_pool.c:738 pool_get(ffffffff8292d3b8,2) at pool_get+0xeb sys/kern/subr_pool.c:581 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 mld6_sendpkt(ffff800000a9f800,83,0) at mld6_sendpkt+0x8e sys/netinet6/mld6.c:405 mld6_fasttimeo() at mld6_fasttimeo+0x162 mld6_checktimer sys/netinet6/mld6.c:363 [inline] mld6_fasttimeo() at mld6_fasttimeo+0x162 sys/netinet6/mld6.c:341 pffasttimo(ffffffff827dc0e0) at pffasttimo+0x85 sys/kern/uipc_domain.c:292 timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline] timeout_run(ffffffff827dc0e0) at timeout_run+0xc4 sys/kern/kern_timeout.c:490 softclock_thread(ffff800020d89380) at softclock_thread+0x16a sys/kern/kern_timeout.c:580 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d70ff0) 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 __mp_lock(ffffffff828c5320) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5320) at __mp_lock+0x12e sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828c5320,1) 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(ffff800020e620f0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e620f0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e620f0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff827dde64,120,ffffffff823f5e4b,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e3fc40,ffff800020e62220,ffff800020e62270) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020e622f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e622f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc81c8, count: 3 ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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 __mp_lock(ffffffff828c5320) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c5320) at __mp_lock+0x12e sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff828c5320,1) 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(ffff800020e620f0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff800020e620f0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff800020e620f0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff827dde64,120,ffffffff823f5e4b,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e3fc40,ffff800020e62220,ffff800020e62270) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff800020e622f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e622f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc81c8, count: -12 ddb{1}>