panic: pool_do_put: shmpl: double pool_put: 0xfffffd806c169620 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 47955 99833 32767 0x10 0x4000000 0K syz-executor 248801 59802 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306e929) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff834f8b20,fffffd806c169620) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff834f8b20,fffffd806c169620) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff80003ae833e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003ae833e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4c4f178ac0, count: 8 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 *cpu0: pool_do_put: shmpl: double pool_put: 0xfffffd806c169620 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306e929) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff834f8b20,fffffd806c169620) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff834f8b20,fffffd806c169620) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff80003ae833e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003ae833e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4c4f178ac0, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003ae83110 rbx 0xffffffff8344fdbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff800034d99bf8 rax 0xffffffff8344eff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa023d44a4932eac4 r11 0x251956436748c5a r12 0xffffffff8344fbc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff81f42955 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003ae83100 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=47955 pid=99833 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800034d98530,0xffffffff83621a48 process=0xffff800029fe8490 user=0xffff80003ae7e000, vmspace=0xfffffd806979b370 estcpu=0, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 23496 181282 60732 0 2 0x40 syz-executor 36696 253931 84837 0 2 0x40 syz-executor 99833 472729 28739 32767 2 0x10 syz-executor 99833 350662 28739 32767 3 0x4000090 fsleep syz-executor *99833 47955 28739 32767 7 0x4000010 syz-executor 15034 7809 80383 32767 2 0x10 syz-executor 15034 342703 80383 32767 3 0x4000090 ttyout syz-executor 15034 214221 80383 32767 2 0x4000010 syz-executor 84391 10521 63964 0 2 0x100000 sh 63964 363959 17999 0 3 0x10008a sigsusp sh 17999 516814 22803 0 3 0x80 wait syz-executor 22803 250817 55488 0 3 0x82 wait syz-executor 60732 495231 86251 0 3 0x80 ppwait syz-executor 84837 126658 43415 0 3 0x80 ppwait syz-executor 28739 388836 719 32767 3 0x90 nanoslp syz-executor 86251 403395 55488 0 3 0x82 wait syz-executor 17845 165257 44327 32767 2 0x10 syz-executor 80383 514731 39248 32767 3 0x90 nanoslp syz-executor 59802 248801 15210 32767 7 0x10 syz-executor 28926 486962 94400 32767 2 0x10 syz-executor 43415 165260 55488 0 3 0x82 wait syz-executor 719 120108 55488 0 3 0x82 wait syz-executor 39248 285886 55488 0 3 0x82 wait syz-executor 44327 53316 55488 0 3 0x82 wait syz-executor 15210 464092 55488 0 3 0x82 wait syz-executor 94400 259559 55488 0 3 0x82 wait syz-executor 49751 420889 0 0 3 0x14200 bored sosplice 55488 178791 77850 0 2 0x2 syz-executor 77850 138464 94468 0 3 0x10008a sigsusp ksh 94468 373429 91412 0 3 0x98 kqread sshd-session 91412 273859 93304 0 3 0x92 kqread sshd-session 37191 371288 1 0 3 0x100083 ttyin getty 93304 441375 1 0 3 0x88 kqread sshd 77654 19670 38553 73 3 0x1100010 biowait syslogd 38553 353162 1 0 3 0x100082 sbwait syslogd 68578 289606 1 0 3 0x100080 kqread resolvd 55479 443621 50283 77 3 0x100092 kqread dhcpleased 67066 509611 50283 77 3 0x100092 kqread dhcpleased 50283 422314 1 0 3 0x80 kqread dhcpleased 95010 206458 0 0 3 0x14200 bored smr 3813 416497 0 0 2 0x14200 zerothread 597 412787 0 0 3 0x14200 aiodoned aiodoned 5522 225437 0 0 3 0x14200 syncer update 83031 355621 0 0 3 0x14200 cleaner cleaner 32893 155448 0 0 3 0x14200 reaper reaper 87068 193153 0 0 3 0x14200 pgdaemon pagedaemon 19560 289016 0 0 3 0x14200 bored viomb 44331 147078 0 0 3 0x40014200 acpi0 acpi0 88840 363514 0 0 3 0x40014200 idle1 44171 512163 0 0 3 0x14200 bored softnet3 40832 363059 0 0 3 0x14200 bored softnet2 23465 303639 0 0 3 0x14200 bored softnet1 83186 391913 0 0 3 0x14200 bored softnet0 68860 274223 0 0 3 0x14200 bored systqmp 8840 214745 0 0 3 0x14200 bored systq 46551 196965 0 0 3 0x14200 tmoslp softclockmp 14444 418155 0 0 3 0x40014200 tmoslp softclock 63190 484554 0 0 3 0x40014200 idle0 1 157436 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex shmpl r = 0 (0xffffffff834f8b30) #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 pool_put+0x9f sys/kern/subr_pool.c:797 #4 shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] #4 shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 99833 (syz-executor) thread 0xffff800034d99bf8 (47955) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835eebc8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x21e sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #6 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #7 shm_delete_mapping+0xa0 sys/kern/sysv_shm.c:170 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff834f8b30) #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 pool_put+0x9f sys/kern/subr_pool.c:797 #4 shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] #4 shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 59802 (syz-executor) thread 0xffff800034d987b8 (248801) shared rwlock vmmaplk r = 0 (0xfffffd8009302b40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 77654 (syslogd) thread 0xffff8000ffffdbe8 (19670) exclusive rrwlock inode r = 0 (0xfffffd806e6b4810) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 11051K 11059K 166960K 11330 0 pcb 17 14K 16K 166960K 19 0 rtable 180 5K 7K 166960K 688 0 pf 31 16K 16K 166960K 57 0 ifaddr 35 5K 7K 166960K 91 0 ifgroup 50 2K 2K 166960K 102 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 90 0 ioctlops 0 0K 2K 166960K 47 0 iov 0 0K 12K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 91K 166960K 1789 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 3K 166960K 30 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 24 89K 157K 166960K 710 0 sigio 0 0K 0K 166960K 44 0 proc 58 79K 176K 166960K 880 0 subproc 104 6K 12K 166960K 312 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 77 0 in_multi 68 5K 7K 166960K 217 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 544 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 206 72K 130K 166960K 7257 0 UVM aobj 17 2K 2K 166960K 20 0 pinsyscall 45 90K 126K 166960K 2042 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 21 1K 2K 166960K 60 0 temp 53 6815K 6879K 166960K 6886 0 kqueue 13 20K 28K 166960K 77 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 150 0 147 2 1 1 2 0 8 0 rtentry 112 233 0 150 4 0 4 4 0 8 1 unpcb 144 411 0 392 4 3 1 4 0 8 0 syncache 336 17 0 17 1 1 0 1 0 8 0 tcpqe 32 11 0 11 1 1 0 1 0 8 0 tcpcb 808 331 0 317 11 5 6 11 0 8 2 arp 120 41 0 27 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 336 874 0 858 10 5 5 10 0 8 1 nd6 136 59 0 44 1 0 1 1 0 8 0 kcovpl 48 24 0 16 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 916 0 586 29 3 26 29 0 8 5 art_table 32 917 0 586 4 0 4 4 0 8 1 art_node 16 232 0 156 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 17 0 3 1 0 1 1 0 8 0 pool(shmpl): free list modified: page 0xfffffd806c169000; item ordinal 0; addr 0xfffffd806c169620 (p 0xfffffd806c169000); offset 0x1c=0xdeafbeac dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 2293 0 751 97 0 97 97 0 8 0 ffsino 272 2293 0 751 103 0 103 103 0 8 0 nchpl 144 2996 0 1289 64 0 64 64 0 8 0 uvmvnodes 80 2614 0 0 54 0 54 54 0 8 0 vnodes 216 2614 0 0 146 0 146 146 0 8 0 namei 1024 11671 0 11671 4 2 2 2 0 8 2 percpumem 16 59 0 13 1 0 1 1 0 8 0 kstatmem 264 48 0 26 2 0 2 2 0 8 0 scxspl 216 10200 0 10199 9 7 2 8 1 8 1 plimitpl 152 290 0 266 2 0 2 2 0 8 0 sigapl 424 961 0 906 10 1 9 9 0 8 1 futexpl 64 5569 0 5568 2 1 1 1 0 8 0 knotepl 120 315 0 0 10 0 10 10 0 8 0 kqueuepl 216 193 0 184 5 4 1 5 0 8 0 pipepl 320 188 0 161 5 0 5 5 0 8 0 fdescpl 496 942 0 906 8 1 7 7 0 8 0 filepl 152 5428 0 5185 16 2 14 16 0 8 1 lockfpl 104 184 0 182 1 0 1 1 0 8 0 lockfspl 48 45 0 43 1 0 1 1 0 8 0 sessionpl 144 43 0 27 1 0 1 1 0 8 0 pgrppl 48 137 0 113 1 0 1 1 0 8 0 ucredpl 104 1179 0 1163 1 0 1 1 0 8 0 zombiepl 144 906 0 906 1 0 1 1 0 8 1 processpl 1160 961 0 906 6 0 6 6 0 8 1 procpl 648 1623 0 1564 7 0 7 7 0 8 0 sosppl 168 4 0 4 1 1 0 1 0 8 0 sockpl 664 1445 0 1407 12 5 7 12 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 140 0 0 18 0 18 18 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 929 0 0 58 0 58 58 0 8 0 bufpl 280 5420 0 93 381 0 381 381 0 8 0 anonpl 24 189110 0 186126 51 1 50 50 0 185 22 amapchunkpl 152 23957 0 23547 39 3 36 39 0 158 16 amappl16 200 4415 0 4411 19 15 4 14 0 8 3 amappl15 192 26 0 26 1 1 0 1 0 8 0 amappl14 184 142 0 132 1 0 1 1 0 8 0 amappl13 176 8 0 8 2 2 0 1 0 8 0 amappl12 168 1727 0 1696 3 0 3 3 0 8 1 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 39 0 39 1 1 0 1 0 8 0 amappl9 144 140 0 138 1 0 1 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 124 0 112 1 0 1 1 0 8 0 amappl6 120 278 0 276 1 0 1 1 0 8 0 amappl5 112 187 0 178 1 0 1 1 0 8 0 amappl4 104 348 0 332 1 0 1 1 0 8 0 amappl3 96 4645 0 4552 4 0 4 4 0 8 1 amappl2 88 925 0 861 2 0 2 2 0 8 0 amappl1 80 11736 0 11214 15 1 14 15 0 8 1 amappl 88 6773 0 6622 6 0 6 6 0 92 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 19 0 3 1 0 1 1 0 8 0 pool(aobjpl): free list modified: page 0xfffffd80737f7000; item ordinal 0; addr 0xfffffd80737f7360 (p 0xfffffd80737f7000); offset 0xc=0xdeaf4151 uaddrrnd 24 942 0 906 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 942 0 906 1 0 1 1 0 8 0 vmmpekpl 168 9531 0 9455 5 0 5 5 0 8 0 vmmpepl 168 67346 0 65525 101 5 96 101 0 357 5 vmsppl 440 941 0 906 6 0 6 6 0 8 0 rwobjpl 56 25505 0 22086 52 0 52 52 0 8 0 pdppl 4096 1891 0 1812 155 52 103 113 0 8 24 pvpl 32 27031 0 0 218 0 218 218 0 265 0 pmappl 248 941 0 906 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 498 0 70 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306e929) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff834f8b20,fffffd806c169620) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff834f8b20,fffffd806c169620) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806979b370,ffff8000013e5008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff80003ae833e0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003ae833e0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4c4f178ac0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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 __mp_lock(ffffffff835ee9c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ee9c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a150640) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a150640) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7216bc1bfb20, count: 9 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 __mp_lock(ffffffff835ee9c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ee9c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a150640) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a150640) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7216bc1bfb20, count: -6