panic: kernel diagnostic assertion "__mp_lock_held(&sched_lock, curcpu()) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/kern/kern_lock.c", line 63 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *179379 14534 32767 0x1810 0x4080080 1 syz-executor.4 133810 16702 0 0x14000 0x200 0 zerothread db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a1086) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff82613da6,ffffffff82617104,3f,ffffffff8264968f) at __assert+0x25 sys/kern/subr_prf.c:161 _kernel_lock() at _kernel_lock+0xb2 sys/kern/kern_lock.c:63 single_thread_check_locked(ffff8000fffedce8,1,c) at single_thread_check_locked+0x1f6 sys/kern/kern_sig.c:2037 single_thread_check(ffff8000fffedce8,1) at single_thread_check+0x4b sys/kern/kern_sig.c:2057 sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sleep_signal_check sys/kern/kern_synch.c:464 [inline] sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sys/kern/kern_synch.c:400 rwsleep(ffff8000fffedce8,ffffffff8296a1a0,120,ffffffff82595f34,0) at rwsleep+0xd5 sys/kern/kern_synch.c:314 futex_wait(dc462fa20b0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000fffedce8,ffff8000261bc4a0,ffff8000261bc500) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff8000261bc570) at syscall+0x484 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000261bc570) at syscall+0x484 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdc4cbdca9d0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "__mp_lock_held(&sched_lock, curcpu()) == 0" failed: file "/syzkaller/managers/setuid/kernel/sys/kern/kern_lock.c", line 63 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a1086) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff82613da6,ffffffff82617104,3f,ffffffff8264968f) at __assert+0x25 sys/kern/subr_prf.c:161 _kernel_lock() at _kernel_lock+0xb2 sys/kern/kern_lock.c:63 single_thread_check_locked(ffff8000fffedce8,1,c) at single_thread_check_locked+0x1f6 sys/kern/kern_sig.c:2037 single_thread_check(ffff8000fffedce8,1) at single_thread_check+0x4b sys/kern/kern_sig.c:2057 sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sleep_signal_check sys/kern/kern_synch.c:464 [inline] sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sys/kern/kern_synch.c:400 rwsleep(ffff8000fffedce8,ffffffff8296a1a0,120,ffffffff82595f34,0) at rwsleep+0xd5 sys/kern/kern_synch.c:314 futex_wait(dc462fa20b0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000fffedce8,ffff8000261bc4a0,ffff8000261bc500) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff8000261bc570) at syscall+0x484 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000261bc570) at syscall+0x484 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdc4cbdca9d0, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000261bc0d0 rbx 0xffff800020de9bb7 rdx 0 rcx 0 rax 0xffff8000fffedce8 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb078dd9bb2794a4e r11 0x599f22e93ae0e417 r12 0xffff800020de99b8 r13 0 r14 0 r15 0x1 rip 0xffffffff813e2898 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000261bc0c0 ss 0 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.4) pid=179379 stat=onproc flags process=1810 proc=4080080 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffed508,0xffffffff82adab00 process=0xffff8000fffe8018 user=0xffff8000261b7000, vmspace=0xfffffd8074c325d8 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14534 287518 54421 32767 2 0x3810 syz-executor.4 *14534 179379 54421 32767 7 0x4081890 syz-executor.4 54421 478621 96836 32767 3 0x90 nanoslp syz-executor.4 96836 34760 93853 0 3 0x82 wait syz-executor.4 15663 117218 3538 32767 3 0x90 piperd syz-executor.6 3538 516732 93853 0 3 0x82 wait syz-executor.6 61757 8253 15347 32767 3 0x90 piperd syz-executor.1 15347 184524 93853 0 3 0x82 wait syz-executor.1 26840 456096 0 0 3 0x14200 bored sosplice 12606 438635 78793 32767 3 0x90 piperd syz-executor.7 78793 337889 93853 0 3 0x82 wait syz-executor.7 22437 85143 81267 32767 3 0x90 piperd syz-executor.3 26061 313526 85975 32767 3 0x90 piperd syz-executor.5 85975 118441 93853 0 3 0x82 wait syz-executor.5 58635 342402 15477 32767 3 0x90 piperd syz-executor.2 81267 273710 93853 0 3 0x82 wait syz-executor.3 15477 453056 93853 0 3 0x82 wait syz-executor.2 11088 309639 86320 32767 3 0x90 piperd syz-executor.0 86320 371311 93853 0 3 0x82 wait syz-executor.0 93853 131999 13908 0 3 0x82 thrsleep syz-fuzzer 93853 349502 13908 0 3 0x4000082 nanoslp syz-fuzzer 93853 421991 13908 0 3 0x4000082 thrsleep syz-fuzzer 93853 519864 13908 0 3 0x4000082 thrsleep syz-fuzzer 93853 189801 13908 0 3 0x4000082 kqread syz-fuzzer 93853 479598 13908 0 3 0x4000082 thrsleep syz-fuzzer 93853 74166 13908 0 3 0x4000082 thrsleep syz-fuzzer 93853 89313 13908 0 3 0x4000082 thrsleep syz-fuzzer 93853 36254 13908 0 3 0x4000082 nanoslp syz-fuzzer 93853 500984 13908 0 3 0x4000082 thrsleep syz-fuzzer 13908 135341 45436 0 3 0x10008a sigsusp ksh 45436 173460 52576 0 3 0x9a kqread sshd 3261 390205 1 0 3 0x100083 ttyin getty 52576 283294 1 0 3 0x88 kqread sshd 42524 229476 12465 73 3 0x1100090 kqread syslogd 12465 165996 1 0 3 0x100082 netio syslogd 96175 96356 1 0 3 0x100080 kqread resolvd 53476 179858 76345 77 3 0x100092 kqread dhcpleased 56068 160896 76345 77 3 0x100092 kqread dhcpleased 76345 361888 1 0 3 0x80 kqread dhcpleased 3254 493756 0 0 3 0x14200 bored smr 16702 133810 0 0 7 0x14200 zerothread 48474 234604 0 0 3 0x14200 aiodoned aiodoned 30209 279383 0 0 3 0x14200 syncer update 32773 494929 0 0 3 0x14200 cleaner cleaner 95509 25801 0 0 3 0x14200 reaper reaper 1415 27612 0 0 3 0x14200 pgdaemon pagedaemon 83313 248324 0 0 3 0x14200 bored viomb 34316 522319 0 0 3 0x40014200 acpi0 acpi0 98092 68093 0 0 3 0x40014200 idle1 66271 374987 0 0 3 0x14200 bored softnet 42227 327668 0 0 3 0x14200 bored softnet 2799 375880 0 0 3 0x14200 bored softnet 60803 438169 0 0 3 0x14200 bored softnet 45028 252963 0 0 3 0x14200 bored systqmp 5408 232139 0 0 3 0x14200 bored systq 96316 296516 0 0 3 0x40014200 bored softclock 81596 425324 0 0 3 0x40014200 idle0 1 355477 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82a153e0) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3d4 sys/kern/sched_bsd.c:419 #3 single_thread_check_locked+0x17f sys/kern/kern_sig.c:2045 #4 single_thread_check+0x4b sys/kern/kern_sig.c:2057 #5 sleep_finish+0x75 sleep_signal_check sys/kern/kern_synch.c:464 [inline] #5 sleep_finish+0x75 sys/kern/kern_synch.c:400 #6 rwsleep+0xd5 sys/kern/kern_synch.c:314 #7 futex_wait+0x13c sys/kern/sys_futex.c:260 #8 sys_futex+0xf8 sys/kern/sys_futex.c:111 #9 syscall+0x484 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x484 sys/arch/amd64/amd64/trap.c:585 #10 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 6412K 6420K 78643K 11332 0 pcb 13 10K 12K 78643K 15 0 rtable 240 6K 7K 78643K 864 0 ifaddr 81 17K 17K 78643K 153 0 sysctl 1 1K 1K 78643K 1 0 counters 56 35K 35K 78643K 76 0 ioctlops 0 0K 2K 78643K 58 0 iov 0 0K 17K 78643K 1218 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1271 79K 79K 78643K 2513 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 41 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1134 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 19 69K 117K 78643K 3595 0 sigio 0 0K 0K 78643K 156 0 proc 56 78K 115K 78643K 981 0 subproc 104 6K 6K 78643K 234 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 102 0 in_multi 99 6K 7K 78643K 231 0 ether_multi 1 0K 0K 78643K 10 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 259 1155K 1155K 78643K 259 0 exec 0 0K 2K 78643K 1112 0 tdb 3 0K 0K 78643K 3 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 248 86K 87K 78643K 22168 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 89 0 NDP 13 0K 2K 78643K 57 0 temp 124 4722K 4786K 78643K 12212 0 kqueue 12 18K 26K 78643K 359 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 291 0 288 3 2 1 3 0 8 0 rtentry 112 227 0 114 4 0 4 4 0 8 0 unpcb 136 2615 0 2602 28 25 3 8 0 8 2 syncache 296 35 0 35 7 6 1 1 0 8 1 tcpqe 32 10 0 10 3 3 0 1 0 8 0 tcpcb 736 2910 0 2906 81 72 9 21 0 8 8 arp 120 40 0 20 1 0 1 1 0 8 0 inpcb 320 3981 0 3971 51 44 7 13 0 8 5 nd6 48 58 0 33 1 0 1 1 0 8 0 kcovpl 48 18 0 10 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 940 0 471 31 1 30 30 0 8 0 art_table 32 941 0 471 4 0 4 4 0 8 0 art_node 16 226 0 123 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 1 0 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 1098 0 1088 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6400 0 4968 90 0 90 90 0 8 0 ffsino 272 6400 0 4968 96 0 96 96 0 8 0 nchpl 144 11191 0 9558 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 39955 0 39955 2 1 1 2 0 8 1 percpumem 16 50 0 10 1 0 1 1 0 8 0 kstatmem 264 42 0 20 2 0 2 2 0 8 0 scxspl 216 29069 0 29069 15 14 1 8 0 8 1 plimitpl 152 560 0 537 5 4 1 2 0 8 0 sigapl 424 3855 0 3807 7 0 7 7 0 8 0 futexpl 64 25979 0 25978 1 0 1 1 0 8 0 knotepl 120 477 0 0 14 1 13 14 0 8 0 kqueuepl 224 963 0 955 17 12 5 5 0 8 4 pipepl 336 705 0 677 17 14 3 8 0 8 0 fdescpl 496 3837 0 3807 7 2 5 6 0 8 0 filepl 152 25978 0 25745 47 34 13 18 0 8 4 lockfpl 104 628 0 626 2 1 1 2 0 8 0 lockfspl 48 108 0 106 1 0 1 1 0 8 0 sessionpl 144 33 0 17 1 0 1 1 0 8 0 pgrppl 48 68 0 52 1 0 1 1 0 8 0 ucredpl 104 6550 0 6532 1 0 1 1 0 8 0 zombiepl 144 3807 0 3807 1 0 1 1 0 8 1 processpl 1064 3855 0 3807 5 1 4 5 0 8 0 procpl 672 10127 0 10069 12 5 7 8 0 8 1 sosppl 168 41 0 41 5 4 1 1 0 8 1 sockpl 480 7006 0 6981 150 138 12 30 0 8 7 mcl64k 65536 20 0 0 3 0 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 16 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 24 0 0 3 1 2 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 172 0 0 19 0 19 19 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 397 0 0 21 0 21 21 0 8 0 bufpl 288 8280 0 1949 453 0 453 453 0 8 0 anonpl 24 690480 0 680429 128 46 82 106 0 186 0 amapchunkpl 152 61886 0 61364 44 18 26 35 0 158 0 amappl16 200 8816 0 8453 46 26 20 34 0 8 0 amappl15 192 3 0 3 2 1 1 1 0 8 1 amappl14 184 609 0 603 1 0 1 1 0 8 0 amappl13 176 619 0 615 1 0 1 1 0 8 0 amappl12 168 7 0 5 1 0 1 1 0 8 0 amappl11 160 445 0 427 1 0 1 1 0 8 0 amappl10 152 228 0 219 2 1 1 1 0 8 0 amappl9 144 513 0 509 1 0 1 1 0 8 0 amappl8 136 2600 0 2524 3 0 3 3 0 8 0 amappl7 128 1962 0 1943 1 0 1 1 0 8 0 amappl6 120 299 0 281 2 1 1 2 0 8 0 amappl5 112 3178 0 3159 1 0 1 1 0 8 0 amappl4 104 1451 0 1429 2 1 1 2 0 8 0 amappl3 96 11079 0 11036 2 0 2 2 0 8 0 amappl2 88 4709 0 4641 3 1 2 3 0 8 0 amappl1 80 91461 0 90854 23 7 16 19 0 8 0 amappl 88 21480 0 21332 6 1 5 5 0 92 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 3837 0 3807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3837 0 3807 1 0 1 1 0 8 0 vmmpekpl 168 32116 0 32060 4 0 4 4 0 8 0 vmmpepl 168 375576 0 373316 153 27 126 139 0 357 5 vmsppl 368 3836 0 3807 4 0 4 4 0 8 0 rwobjpl 56 95394 0 88061 106 0 106 106 0 8 0 pdppl 4096 7681 0 7614 205 130 75 93 0 8 8 pvpl 32 1443651 0 1428966 293 125 168 249 0 265 20 pmappl 248 3836 0 3807 4 1 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1038 0 221 24 0 24 24 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82988ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a151d8) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a151d8) at __mp_lock+0x129 sys/kern/kern_lock.c:147 yield() at yield+0x36 sys/kern/sched_bsd.c:288 uvm_pagezero_thread(ffff8000212422a8) at uvm_pagezero_thread+0x6d sys/uvm/uvm_pmemrange.c:2170 end trace frame: 0x0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff82988ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a151d8) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a151d8) at __mp_lock+0x129 sys/kern/kern_lock.c:147 yield() at yield+0x36 sys/kern/sched_bsd.c:288 uvm_pagezero_thread(ffff8000212422a8) at uvm_pagezero_thread+0x6d sys/uvm/uvm_pmemrange.c:2170 end trace frame: 0x0, count: -6 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:437 panic(ffffffff825a1086) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff82613da6,ffffffff82617104,3f,ffffffff8264968f) at __assert+0x25 sys/kern/subr_prf.c:161 _kernel_lock() at _kernel_lock+0xb2 sys/kern/kern_lock.c:63 single_thread_check_locked(ffff8000fffedce8,1,c) at single_thread_check_locked+0x1f6 sys/kern/kern_sig.c:2037 single_thread_check(ffff8000fffedce8,1) at single_thread_check+0x4b sys/kern/kern_sig.c:2057 sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sleep_signal_check sys/kern/kern_synch.c:464 [inline] sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sys/kern/kern_synch.c:400 rwsleep(ffff8000fffedce8,ffffffff8296a1a0,120,ffffffff82595f34,0) at rwsleep+0xd5 sys/kern/kern_synch.c:314 futex_wait(dc462fa20b0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000fffedce8,ffff8000261bc4a0,ffff8000261bc500) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff8000261bc570) at syscall+0x484 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000261bc570) at syscall+0x484 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdc4cbdca9d0, count: 3 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a1086) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff82613da6,ffffffff82617104,3f,ffffffff8264968f) at __assert+0x25 sys/kern/subr_prf.c:161 _kernel_lock() at _kernel_lock+0xb2 sys/kern/kern_lock.c:63 single_thread_check_locked(ffff8000fffedce8,1,c) at single_thread_check_locked+0x1f6 sys/kern/kern_sig.c:2037 single_thread_check(ffff8000fffedce8,1) at single_thread_check+0x4b sys/kern/kern_sig.c:2057 sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sleep_signal_check sys/kern/kern_synch.c:464 [inline] sleep_finish(ffff8000261bc310,1) at sleep_finish+0x75 sys/kern/kern_synch.c:400 rwsleep(ffff8000fffedce8,ffffffff8296a1a0,120,ffffffff82595f34,0) at rwsleep+0xd5 sys/kern/kern_synch.c:314 futex_wait(dc462fa20b0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260 sys_futex(ffff8000fffedce8,ffff8000261bc4a0,ffff8000261bc500) at sys_futex+0xf8 sys/kern/sys_futex.c:111 syscall(ffff8000261bc570) at syscall+0x484 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000261bc570) at syscall+0x484 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdc4cbdca9d0, count: -12