panic: kernel diagnostic assertion "(pg->pg_flags & (PQ_INACTIVE|PQ_ACTIVE)) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_page.c", line 1268 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 154599 91712 32767 0x1010 0x4080000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b0fe0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0dbb,ffffffff833438ff,4f4,ffffffff8341f7bb) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedeactivate(fffffd800881b478) at uvm_pagedeactivate+0x2d8 sys/uvm/uvm_page.c:1265 uvn_flush(fffffd806c9468d0,0,0,14) at uvn_flush+0x43b sys/uvm/uvm_vnode.c:668 uvn_detach(fffffd806c9468d0) at uvn_detach+0x19e sys/uvm/uvm_vnode.c:371 uvm_unmap_detach(ffff80002a378610,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ccf23f8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c41b780,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c41b780,ffff80002a3787e0,ffff80002a378730) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3787e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3787e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc83dc131b0, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "(pg->pg_flags & (PQ_INACTIVE|PQ_ACTIVE)) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_page.c", line 1268 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b0fe0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0dbb,ffffffff833438ff,4f4,ffffffff8341f7bb) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedeactivate(fffffd800881b478) at uvm_pagedeactivate+0x2d8 sys/uvm/uvm_page.c:1265 uvn_flush(fffffd806c9468d0,0,0,14) at uvn_flush+0x43b sys/uvm/uvm_vnode.c:668 uvn_detach(fffffd806c9468d0) at uvn_detach+0x19e sys/uvm/uvm_vnode.c:371 uvm_unmap_detach(ffff80002a378610,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ccf23f8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c41b780,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c41b780,ffff80002a3787e0,ffff80002a378730) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3787e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3787e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc83dc131b0, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a378310 rbx 0xffffffff83872e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff80003c41b780 rax 0xffffffff83871ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x3b4ac18ccd8d5991 r11 0xa919c99ea52deaf5 r12 0xffffffff83872c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81166555 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a378300 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=472149 pid=53239 tcnt=0 stat=onproc flags process=1018 proc=2000 runpri=32, usrpri=53, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c41b780 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c41a7f0,0xffffffff839c8ab0 process=0xffff80003b810020 user=0xffff80002a373000, vmspace=0xfffffd806ccf23f8 estcpu=3, cpticks=8, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91712 362153 7098 32767 3 0x3010 suspend syz-executor 91712 154599 7098 32767 7 0x4081010 syz-executor 92956 86205 49348 32767 2 0xc90 syz-executor 95375 443218 96209 32767 2 0xc90 syz-executor 34390 277378 27925 32767 3 0x90 piperd syz-executor 7098 330334 91266 32767 3 0x90 wait syz-executor 22994 9838 82601 32767 2 0xc90 syz-executor 69077 315564 88502 32767 2 0x10 syz-executor 93034 246663 80893 32767 2 0xc90 syz-executor 27925 520153 31348 0 3 0x82 wait syz-executor 49348 337975 31348 0 3 0x82 wait syz-executor 91266 79214 31348 0 3 0x82 wait syz-executor 82601 45217 31348 0 3 0x82 wait syz-executor 88502 4691 31348 0 3 0x82 wait syz-executor 96209 73503 31348 0 3 0x82 wait syz-executor 80893 30621 31348 0 3 0x82 wait syz-executor 31348 93108 44055 0 3 0x82 nanoslp syz-executor 44055 99190 72436 0 3 0x10008a sigsusp ksh 72436 323849 53596 0 3 0x98 kqread sshd-session 53596 110682 79382 0 3 0x92 kqread sshd-session 74309 194858 1 0 3 0x100083 ttyin getty 79382 503323 1 0 3 0x88 kqread sshd 49802 495840 14819 73 3 0x1100090 kqread syslogd 14819 395025 1 0 3 0x100082 sbwait syslogd 50171 272468 1 0 3 0x100080 kqread resolvd 31948 259935 53558 77 3 0x100092 kqread dhcpleased 65869 175784 53558 77 3 0x100092 kqread dhcpleased 53558 471865 1 0 3 0x80 kqread dhcpleased 87826 380842 0 0 2 0x40014200 smr 46294 397527 0 0 2 0x14200 zerothread 6060 147844 0 0 3 0x14200 aiodoned aiodoned 19778 138187 0 0 3 0x14200 syncer update 50027 266407 0 0 3 0x14200 cleaner cleaner 73201 265798 0 0 2 0x14200 reaper 55101 115390 0 0 3 0x14200 pgdaemon pagedaemon 52448 51342 0 0 3 0x14200 bored viomb 94814 25598 0 0 3 0x40014200 acpi0 acpi0 13417 409172 0 0 3 0x40014200 idle1 97145 72048 0 0 3 0x14200 bored softnet1 81172 289097 0 0 3 0x14200 bored softnet0 908 66283 0 0 3 0x14200 smrbar systqmp 32694 340502 0 0 3 0x14200 bored systq 81111 480227 0 0 2 0x14200 softclockmp 81732 191691 0 0 3 0x40014200 tmoslp softclock 55530 354336 0 0 3 0x40014200 idle0 1 279724 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 91712 (syz-executor) thread 0xffff80003c41aa88 (154599) shared rwlock vmmaplk r = 0 (0xfffffd806cad46e8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283 #6 kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520 #7 alltraps_kern_meltdown+0x7b #8 copyout+0x64 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 Process 69077 (syz-executor) thread 0xffff8000ffff2d10 (315564) exclusive rrwlock inode r = 0 (0xfffffd806bfd9588) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ddb48e0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 908 (systqmp) thread 0xffff8000ffffea60 (66283) shared rwlock systqmp r = 0 (0xffffffff837dd5a8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 10955K 10973K 166960K 11280 0 pcb 17 12K 12K 166960K 17 0 rtable 217 6K 7K 166960K 362 0 pf 29 16K 16K 166960K 31 0 ifaddr 38 6K 7K 166960K 44 0 ifgroup 46 2K 2K 166960K 50 0 sysctl 2 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 70 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 13K 166960K 17 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1435 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 121K 166960K 353 0 sigio 0 0K 0K 166960K 5 0 proc 58 99K 163K 166960K 504 0 subproc 63 3K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 46 0 in_multi 88 6K 7K 166960K 106 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 376 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 197 134K 166K 166960K 4904 0 UVM aobj 7 2K 3K 166960K 10 0 pinsyscall 39 78K 113K 166960K 1436 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 13 0 NDP 10 0K 2K 166960K 27 0 temp 41 8672K 8737K 166960K 4874 0 kqueue 13 20K 29K 166960K 75 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 48 0 45 1 0 1 1 0 8 0 rtentry 176 113 0 13 6 0 6 6 0 8 0 unpcb 144 494 0 479 6 0 6 6 0 8 5 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 201 0 197 4 0 4 4 0 8 3 arp 136 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 439 0 432 7 0 7 7 0 8 6 ip6q 72 4 0 1 1 0 1 1 0 8 0 ip6af 40 5 0 2 1 0 1 1 0 8 0 nd6 152 26 0 4 1 0 1 1 0 8 0 kcovpl 48 12 0 5 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 466 0 44 30 0 30 30 0 8 2 art_table 40 467 0 44 5 0 5 5 0 8 0 art_node 32 113 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 7 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1866 0 348 96 0 96 96 0 8 0 ffsino 296 1866 0 348 118 0 118 118 0 8 0 nchpl 144 2340 0 646 63 0 63 63 0 8 0 vnodes 216 1983 0 0 111 0 111 111 0 8 0 namei 1024 7192 0 7191 2 0 2 2 0 8 1 percpumem 16 50 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 7487 0 7487 3 2 1 2 1 8 1 plimitpl 152 75 0 51 2 0 2 2 0 8 0 sigapl 424 637 0 588 7 0 7 7 0 8 0 knotepl 120 534 0 0 18 1 17 18 0 8 0 kqueuepl 224 92 0 82 1 0 1 1 0 8 0 pipepl 344 143 0 116 3 0 3 3 0 8 0 fdescpl 528 621 0 591 3 0 3 3 0 8 0 filepl 160 3168 0 2974 19 2 17 19 0 8 8 lockfpl 104 81 0 79 1 0 1 1 0 8 0 lockfspl 48 26 0 24 1 0 1 1 0 8 0 sessionpl 144 28 0 13 1 0 1 1 0 8 0 pgrppl 48 76 0 54 1 0 1 1 0 8 0 ucredpl 104 465 0 447 1 0 1 1 0 8 0 zombiepl 144 592 0 588 1 0 1 1 0 8 0 processpl 1232 637 0 588 5 0 5 5 0 8 0 procpl 664 962 0 908 6 0 6 6 0 8 0 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 752 983 0 958 25 14 11 25 0 8 8 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 209 0 0 14 0 14 14 0 8 0 bufpl 280 2706 0 119 185 0 185 185 0 8 0 anonpl 32 7667 0 0 62 0 62 62 0 246 0 amapchunkpl 152 15688 0 15276 38 0 38 38 0 158 14 amappl16 200 2441 0 2273 11 2 9 9 0 8 0 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 5 0 5 1 1 0 1 0 8 0 amappl13 176 403 0 402 1 0 1 1 0 8 0 amappl12 168 972 0 933 3 0 3 3 0 8 0 amappl11 160 10 0 10 1 1 0 1 0 8 0 amappl10 152 43 0 32 1 0 1 1 0 8 0 amappl9 144 249 0 248 1 0 1 1 0 8 0 amappl8 136 17 0 16 1 0 1 1 0 8 0 amappl7 128 100 0 99 1 0 1 1 0 8 0 amappl6 120 269 0 258 1 0 1 1 0 8 0 amappl5 112 80 0 72 1 0 1 1 0 8 0 amappl4 104 394 0 369 1 0 1 1 0 8 0 amappl3 96 2617 0 2528 4 0 4 4 0 8 0 amappl2 88 525 0 472 2 0 2 2 0 8 0 amappl1 80 10466 0 9925 14 0 14 14 0 8 0 amappl 88 4158 0 4027 5 0 5 5 0 92 0 uvmvnodes 80 110 0 0 3 0 3 3 0 8 0 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 9 0 3 1 0 1 1 0 8 0 uaddrrnd 24 622 0 592 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 622 0 592 1 0 1 1 0 8 0 vmmpekpl 168 6905 0 6863 3 0 3 3 0 8 0 vmmpepl 168 47968 0 46105 98 0 98 98 0 357 9 vmsppl 488 621 0 589 7 1 6 6 0 8 0 rwobjpl 80 16507 0 15471 22 0 22 22 0 8 0 pdppl 4096 1251 0 1178 109 30 79 95 0 8 6 pvpl 32 15685 0 0 127 0 127 127 0 265 0 pmappl 256 621 0 589 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 289 0 33 8 0 8 8 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:438 panic(ffffffff833b0fe0) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0dbb,ffffffff833438ff,4f4,ffffffff8341f7bb) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedeactivate(fffffd800881b478) at uvm_pagedeactivate+0x2d8 sys/uvm/uvm_page.c:1265 uvn_flush(fffffd806c9468d0,0,0,14) at uvn_flush+0x43b sys/uvm/uvm_vnode.c:668 uvn_detach(fffffd806c9468d0) at uvn_detach+0x19e sys/uvm/uvm_vnode.c:371 uvm_unmap_detach(ffff80002a378610,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ccf23f8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c41b780,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c41b780,ffff80002a3787e0,ffff80002a378730) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3787e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3787e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc83dc131b0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 copyout() at copyout+0x64 syscall(ffff80003c42b1c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42b1c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeec86cb310, count: 8 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 copyout() at copyout+0x64 syscall(ffff80003c42b1c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42b1c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfeec86cb310, count: -7