panic: chgproccnt: procs < 0 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *424804 5184 0 0x10 0x4000000 1K syz-executor 202815 23894 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f7f7f) at panic+0x1e5 sys/kern/subr_prf.c:198 chgproccnt(ee00,ffffffff) at chgproccnt+0xcc sys_setreuid(ffff800035c09778,ffff80003c46b4d0,ffff80003c46b420) at sys_setreuid+0x565 sys/kern/kern_prot.c:688 syscall(ffff80003c46b4d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c46b4d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee293e4b020, count: 9 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: chgproccnt: procs < 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f7f7f) at panic+0x1e5 sys/kern/subr_prf.c:198 chgproccnt(ee00,ffffffff) at chgproccnt+0xcc sys_setreuid(ffff800035c09778,ffff80003c46b4d0,ffff80003c46b420) at sys_setreuid+0x565 sys/kern/kern_prot.c:688 syscall(ffff80003c46b4d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c46b4d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee293e4b020, count: -6 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c46b290 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff800035c09778 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc253526efaf15690 r11 0x78ea92d25a6b3133 r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff81ac09d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c46b280 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=424804 pid=5184 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800035c08a80,0xffff800035c08030 process=0xffff80003a025360 user=0xffff80003c466000, vmspace=0xfffffd806b7f49a8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79850 245199 41652 0 2 0 syz-executor 79850 25157 41652 0 3 0x4000080 fsleep syz-executor 5184 308186 3961 0 2 0x10 syz-executor 5184 489396 3961 0 2 0x4000010 syz-executor * 5184 424804 3961 0 7 0x4000010 syz-executor 5184 177902 3961 0 3 0x4000090 fsleep syz-executor 23894 202815 93886 0 7 0 syz-executor 23894 205665 93886 0 3 0x4000080 fsleep syz-executor 23894 122623 93886 0 3 0x4000080 fsleep syz-executor 22509 349309 28258 0 2 0 syz-executor 22509 516428 28258 0 3 0x4000080 fsleep syz-executor 22509 313731 28258 0 3 0x4000080 fsleep syz-executor 90428 233284 3131 0 2 0 syz-executor 90428 39930 3131 0 3 0x4000080 fsleep syz-executor 90428 208485 3131 0 3 0x4000080 fsleep syz-executor 90428 477773 3131 0 3 0x4000080 fsleep syz-executor 90428 347427 3131 0 2 0x4000000 syz-executor 58718 189138 53761 0 2 0 syz-executor 58718 231942 53761 0 3 0x4000080 fsleep syz-executor 94020 351079 79738 0 2 0 syz-executor 94020 428250 79738 0 3 0x4000080 fsleep syz-executor 28258 247831 9625 0 3 0x82 nanoslp syz-executor 3961 301012 9625 0 3 0x82 nanoslp syz-executor 3131 178981 9625 0 3 0x82 nanoslp syz-executor 93886 301541 9625 0 3 0x82 nanoslp syz-executor 22071 27522 9625 0 3 0x2 biowait syz-executor 41652 379684 9625 0 3 0x82 nanoslp syz-executor 79738 29803 9625 0 3 0x82 nanoslp syz-executor 53761 88223 9625 0 3 0x82 nanoslp syz-executor 9625 29849 8351 0 3 0x82 kqread syz-executor 8351 81082 498 0 3 0x10008a sigsusp ksh 498 121772 97531 0 3 0x98 kqread sshd-session 97531 59795 34859 0 3 0x92 kqread sshd-session 18030 72519 1 0 3 0x100083 ttyin getty 34859 326063 1 0 3 0x88 kqread sshd 53637 73604 62424 74 3 0x1100092 bpf pflogd 62424 424248 1 0 3 0x80 sbwait pflogd 37211 254883 61199 73 3 0x1100090 kqread syslogd 61199 517506 1 0 3 0x100082 sbwait syslogd 39771 18834 1 0 3 0x100080 kqread resolvd 79194 423903 35826 77 3 0x100092 kqread dhcpleased 96449 435956 35826 77 3 0x100092 kqread dhcpleased 35826 388854 1 0 3 0x80 kqread dhcpleased 24536 314071 0 0 3 0x14200 bored smr 65203 477485 0 0 2 0x14200 zerothread 13829 63055 0 0 3 0x14200 aiodoned aiodoned 81024 495747 0 0 3 0x14200 syncer update 10541 177217 0 0 3 0x14200 cleaner cleaner 15858 33110 0 0 3 0x14200 reaper reaper 98745 372260 0 0 3 0x14200 pgdaemon pagedaemon 99273 444323 0 0 3 0x14200 bored viomb 18239 278182 0 0 3 0x40014200 acpi0 acpi0 52839 359356 0 0 3 0x40014200 idle1 33291 27290 0 0 3 0x14200 bored softnet7 40959 407124 0 0 3 0x14200 bored softnet6 42018 507634 0 0 3 0x14200 bored softnet5 9489 384839 0 0 3 0x14200 bored softnet4 2003 150163 0 0 3 0x14200 bored softnet3 19881 150425 0 0 3 0x14200 bored softnet2 79934 43164 0 0 3 0x14200 bored softnet1 35410 502807 0 0 3 0x14200 bored softnet0 21681 81003 0 0 3 0x14200 bored systqmp 36382 41302 0 0 3 0x14200 bored systq 98634 506311 0 0 3 0x14200 tmoslp softclockmp 43643 375810 0 0 3 0x40014200 tmoslp softclock 18759 390588 0 0 3 0x40014200 idle0 1 360024 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 5184 (syz-executor) thread 0xffff800035c09778 (424804) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838f7f40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe3 sys/kern/kern_malloc.c:174 #3 uid_find+0xab sys/kern/kern_proc.c:136 #4 chgproccnt+0x39 sys/kern/kern_proc.c:-1 #5 sys_setreuid+0x565 sys/kern/kern_prot.c:688 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 22071 (syz-executor) thread 0xffff8000ffff3768 (27522) exclusive rrwlock inode r = 0 (0xfffffd806e199668) #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+0xa3 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:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bdf48e8) #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+0xa3 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:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10199 11023K 11031K 166960K 11278 0 pcb 19 12K 12K 166960K 25 0 rtable 211 6K 6K 166960K 263 0 pf 39 18K 18K 166960K 50 0 ifaddr 45 7K 7K 166960K 47 0 ifgroup 60 2K 2K 166960K 60 0 sysctl 1 1K 9K 166960K 5 0 counters 72 37K 37K 166960K 72 0 ioctlops 0 0K 4K 166960K 1486 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1338 84K 84K 166960K 1371 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 156 0 sigio 1 0K 0K 166960K 1 0 proc 72 115K 164K 166960K 534 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 2 0K 0K 166960K 2 0 in_multi 100 7K 7K 166960K 100 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 364 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 240 161K 168K 166960K 3158 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 42 84K 102K 166960K 1234 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 2 0 NDP 29 2K 2K 166960K 29 0 temp 35 8638K 8702K 166960K 4007 0 kqueue 14 22K 24K 166960K 25 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 33 0 30 1 0 1 1 0 8 0 rtentry 176 98 0 2 5 0 5 5 0 8 0 unpcb 144 45 0 24 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 13 0 6 1 0 1 1 0 8 0 arp 128 10 0 0 1 0 1 1 0 8 0 inpcb 328 78 0 65 2 0 2 2 0 8 0 nd6 144 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 1 0 0 1 0 1 1 0 8 0 pppxif 1504 1 0 0 1 0 1 1 0 8 0 pfstscr 40 2 0 2 1 1 0 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 16 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 2 1 0 1 1 0 8 0 pfstate 384 17 0 1 2 0 2 2 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 447 0 0 28 0 28 28 0 8 0 art_table 40 448 0 0 5 0 5 5 0 8 0 art_node 32 98 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1599 0 84 95 0 95 95 0 8 0 ffsino 296 1599 0 84 117 0 117 117 0 8 0 nchpl 144 1808 0 112 63 0 63 63 0 8 0 uvmvnodes 80 1691 0 0 35 0 35 35 0 8 0 vnodes 216 1691 0 0 94 0 94 94 0 8 0 namei 1024 5528 0 5527 3 2 1 2 0 8 0 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 28 0 0 2 0 2 2 0 8 0 scxspl 216 6425 0 6424 3 2 1 2 1 8 0 plimitpl 152 60 0 43 1 0 1 1 0 8 0 sigapl 424 458 0 405 7 0 7 7 0 8 0 knotepl 120 54 0 0 2 0 2 2 0 8 0 kqueuepl 224 21 0 10 1 0 1 1 0 8 0 pipepl 344 102 0 75 3 0 3 3 0 8 0 fdescpl 528 436 0 405 3 0 3 3 0 8 0 filepl 160 1560 0 1333 10 0 10 10 0 8 0 lockfpl 104 12 0 10 1 0 1 1 0 8 0 lockfspl 48 6 0 4 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 13 1 0 1 1 0 8 0 ucredpl 104 88 0 73 1 0 1 1 0 8 0 zombiepl 144 405 0 405 1 0 1 1 0 8 1 processpl 1232 458 0 405 5 0 5 5 0 8 0 procpl 664 512 0 445 6 0 6 6 0 8 0 sockpl 752 158 0 121 4 0 4 4 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 109 0 0 14 0 14 14 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 120 0 0 7 0 7 7 0 8 0 bufpl 280 2908 0 122 199 0 199 199 0 8 0 anonpl 32 7390 0 0 60 0 60 60 0 246 0 amapchunkpl 152 9215 0 8469 32 3 29 29 0 158 0 amappl16 200 2073 0 2054 5 3 2 5 0 8 0 amappl15 192 16 0 15 1 0 1 1 0 8 0 amappl14 184 148 0 136 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1078 0 1047 4 1 3 3 0 8 0 amappl11 160 76 0 62 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 252 0 251 1 0 1 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 116 0 104 1 0 1 1 0 8 0 amappl6 120 198 0 194 1 0 1 1 0 8 0 amappl5 112 127 0 118 1 0 1 1 0 8 0 amappl4 104 296 0 276 1 0 1 1 0 8 0 amappl3 96 1375 0 1264 3 0 3 3 0 8 0 amappl2 88 629 0 567 2 0 2 2 0 8 0 amappl1 80 8225 0 7619 16 2 14 15 0 8 0 amappl 88 2487 0 2319 4 0 4 4 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 436 0 405 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 436 0 405 1 0 1 1 0 8 0 vmmpekpl 168 5197 0 5163 2 0 2 2 0 8 0 vmmpepl 168 34833 0 32870 88 0 88 88 0 357 0 vmsppl 488 435 0 405 5 0 5 5 0 8 0 rwobjpl 80 14429 0 11811 55 0 55 55 0 8 0 pdppl 4096 880 0 810 98 26 72 86 0 8 2 pvpl 32 13618 0 0 110 0 110 110 0 265 0 pmappl 256 435 0 405 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 262 0 31 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83787ff0) 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 __mp_lock(ffffffff838f7d38) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f7d38) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030ffbae0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838f7d38) at __mp_lock+0x190 __mp_lock_spin sys/kern/kern_lock.c:135 [inline] __mp_lock(ffffffff838f7d38) at __mp_lock+0x190 sys/kern/kern_lock.c:165 uvm_fault(fffffd806b7f4b90,ca226142000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff800030ffbe70,ca226142000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff800030ffbe70) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72f93886bfe0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83787ff0) 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 __mp_lock(ffffffff838f7d38) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838f7d38) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030ffbae0,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838f7d38) at __mp_lock+0x190 __mp_lock_spin sys/kern/kern_lock.c:135 [inline] __mp_lock(ffffffff838f7d38) at __mp_lock+0x190 sys/kern/kern_lock.c:165 uvm_fault(fffffd806b7f4b90,ca226142000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:700 upageflttrap(ffff800030ffbe70,ca226142000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff800030ffbe70) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72f93886bfe0, count: -11 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:438 panic(ffffffff833f7f7f) at panic+0x1e5 sys/kern/subr_prf.c:198 chgproccnt(ee00,ffffffff) at chgproccnt+0xcc sys_setreuid(ffff800035c09778,ffff80003c46b4d0,ffff80003c46b420) at sys_setreuid+0x565 sys/kern/kern_prot.c:688 syscall(ffff80003c46b4d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c46b4d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee293e4b020, count: 9 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833f7f7f) at panic+0x1e5 sys/kern/subr_prf.c:198 chgproccnt(ee00,ffffffff) at chgproccnt+0xcc sys_setreuid(ffff800035c09778,ffff80003c46b4d0,ffff80003c46b420) at sys_setreuid+0x565 sys/kern/kern_prot.c:688 syscall(ffff80003c46b4d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c46b4d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xee293e4b020, count: -6