uvm_fault(0xfffffd806cbcfa20, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND dt_ioctl_record_stop(ffff8000014f7d80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a83ec60) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e54298,1,fffffd8007bfb888,ffff80002a7e87d0) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd807dee1ad8,ffff80002a7e87d0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd807dee1ad8,ffff80002a7e87d0) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a7e87d0) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a7e87d0,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a7e87d0,ffff80002a83efd0,ffff80002a83ef20) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a83efd0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a83efd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7548fdbb19d0, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806cbcfa20, 0x0, 0, 1) -> e ddb> trace dt_ioctl_record_stop(ffff8000014f7d80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a83ec60) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e54298,1,fffffd8007bfb888,ffff80002a7e87d0) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd807dee1ad8,ffff80002a7e87d0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd807dee1ad8,ffff80002a7e87d0) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a7e87d0) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a7e87d0,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a7e87d0,ffff80002a83efd0,ffff80002a83ef20) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a83efd0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a83efd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7548fdbb19d0, count: -12 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a83eb90 rbx 0xffffffff81a6e1a0 dtclose rdx 0 rcx 0xffff80002a7e87d0 rax 0xffffffff837c63b8 dt_prov_syscall r8 0xffffffffffffffff r9 0 r10 0x4aa85cdad51678de r11 0x1afab336542aea6d r12 0xffff80000006c080 r13 0 r14 0 r15 0xffff800000b50300 rip 0xffffffff81a6e520 dt_ioctl_record_stop+0xf0 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff80002a83eb60 ss 0x10 dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12 ddb> show proc PROC (syz-executor) tid=108915 pid=3000 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a7e87d0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a7e99c0,0xffff80003c9727e8 process=0xffff80003c9c4920 user=0xffff80002a83a000, vmspace=0xfffffd806cbcfa20 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98618 352848 45033 0 2 0 syz-executor 15434 368391 12312 0 2 0 syz-executor 15434 382734 12312 0 3 0x4000080 fsleep syz-executor 14981 246227 58707 0 2 0 syz-executor 14981 161490 58707 0 3 0x4000080 fsleep syz-executor 85899 186285 97680 0 3 0x80 nanoslp syz-executor 85899 27088 97680 0 3 0x4000080 msgwait syz-executor 85899 90037 97680 0 3 0x4000080 fsleep syz-executor 60671 253201 0 0 3 0x14200 acct acct 35556 303377 83024 0 3 0x82 nanoslp syz-executor 30554 53056 83024 0 2 0x2 syz-executor 58707 498582 83024 0 3 0x82 nanoslp syz-executor 94984 143697 0 0 3 0x14280 nfsidl nfsio 37451 257382 0 0 3 0x14280 nfsidl nfsio 12285 90894 0 0 3 0x14280 nfsidl nfsio 96495 239492 0 0 3 0x14280 nfsidl nfsio 88266 3226 0 0 3 0x14280 nfsidl nfsio 38734 271466 0 0 3 0x14280 nfsidl nfsio 29374 79161 0 0 3 0x14280 nfsidl nfsio 83838 234445 0 0 3 0x14280 nfsidl nfsio 38906 137263 0 0 3 0x14280 nfsidl nfsio 92805 33846 0 0 3 0x14280 nfsidl nfsio 65132 167141 0 0 3 0x14280 nfsidl nfsio 91130 87581 0 0 3 0x14280 nfsidl nfsio 94972 70533 0 0 3 0x14280 nfsidl nfsio 70517 461043 0 0 3 0x14280 nfsidl nfsio 64317 421302 0 0 3 0x14280 nfsidl nfsio 92072 310655 0 0 3 0x14280 nfsidl nfsio 34464 69474 0 0 3 0x14280 nfsidl nfsio 28959 144570 0 0 3 0x14280 nfsidl nfsio 4252 358334 0 0 3 0x14280 nfsidl nfsio 65898 68658 0 0 3 0x14280 nfsidl nfsio 81767 145437 0 0 3 0x14200 bored sosplice 45033 520710 83024 0 3 0x82 nanoslp syz-executor 12312 179436 83024 0 3 0x82 nanoslp syz-executor 55476 263763 83024 0 3 0x82 nanoslp syz-executor 97680 288395 83024 0 3 0x82 nanoslp syz-executor 95040 202702 83024 0 3 0x82 nanoslp syz-executor 83024 494946 53438 0 2 0x2 syz-executor 53438 238918 83973 0 3 0x10008a sigsusp ksh 83973 25613 30111 0 3 0x98 kqread sshd-session 30111 317709 79646 0 3 0x92 kqread sshd-session 3782 342022 1 0 3 0x100083 ttyopn getty 79646 280634 1 0 3 0x88 kqread sshd 48016 479569 90553 73 3 0x1100090 kqread syslogd 90553 320599 1 0 3 0x100082 sbwait syslogd 60748 427117 1 0 3 0x100080 kqread resolvd 62830 124247 73739 77 3 0x100092 kqread dhcpleased 37724 284165 73739 77 3 0x100092 kqread dhcpleased 73739 112417 1 0 3 0x80 kqread dhcpleased 52503 28770 0 0 3 0x14200 bored smr 21194 33921 0 0 2 0x14200 zerothread 63952 422939 0 0 3 0x14200 aiodoned aiodoned 25025 322495 0 0 3 0x14200 syncer update 83756 290489 0 0 3 0x14200 cleaner cleaner 80548 300169 0 0 3 0x14200 reaper reaper 16095 10904 0 0 3 0x14200 pgdaemon pagedaemon 53047 102152 0 0 3 0x14200 bored viomb 82193 8565 0 0 3 0x40014200 acpi0 acpi0 26298 142067 0 0 3 0x14200 bored softnet7 52960 209878 0 0 3 0x14200 bored softnet6 81733 386946 0 0 3 0x14200 bored softnet5 10327 88095 0 0 3 0x14200 bored softnet4 70450 282730 0 0 3 0x14200 bored softnet3 79393 285669 0 0 3 0x14200 bored softnet2 61820 125268 0 0 3 0x14200 bored softnet1 2507 501665 0 0 3 0x14200 bored softnet0 77761 474160 0 0 3 0x14200 bored systqmp 79458 36307 0 0 3 0x14200 bored systq 56089 277742 0 0 3 0x40014200 tmoslp softclock 35541 454869 0 0 3 0x40014200 idle0 1 396213 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10213 11386K 11564K 166960K 12843 0 pcb 18 14K 20K 166960K 301 0 rtable 213 9K 10K 166960K 475 0 pf 31 13K 17K 166960K 133 0 ifaddr 40 7K 7K 166960K 101 0 ifgroup 50 2K 2K 166960K 173 0 sysctl 4 1K 9K 166960K 20 0 counters 32 17K 18K 166960K 89 0 ioctlops 0 0K 4K 166960K 132 0 iov 0 0K 28K 166960K 85 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1401 88K 88K 166960K 2372 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 10K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 29 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 958 0 sigio 0 0K 0K 166960K 59 0 proc 60 59K 116K 166960K 613 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 239 0 in_multi 95 7K 7K 166960K 162 0 ether_multi 1 0K 0K 166960K 11 0 mrt 2 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 583 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 144K 158K 166960K 9783 0 UVM aobj 85 5K 5K 166960K 90 0 pinsyscall 38 76K 95K 166960K 2048 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 74 0 NDP 11 0K 2K 166960K 71 0 temp 68 8670K 8743K 166960K 31981 0 kqueue 14 20K 31K 166960K 166 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 202 0 199 3 0 3 3 0 8 2 rtentry 136 149 0 65 4 0 4 4 0 8 0 unpcb 144 859 0 840 6 0 6 6 0 8 5 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 348 0 344 7 0 7 7 0 8 6 arp 88 19 0 9 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 2 1 0 1 1 0 8 0 inpcb 328 991 0 980 7 0 7 7 0 8 5 ip6q 72 9 0 3 1 0 1 1 0 8 0 ip6af 40 14 0 7 1 0 1 1 0 8 0 nd6 104 29 0 11 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 0 1 1 0 8 1 ppxss 1072 40 0 40 1 0 1 1 0 8 1 pppxif 1384 4 0 4 1 0 1 1 0 8 1 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 1 1 0 1 1 0 8 1 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 620 0 217 29 0 29 29 0 8 1 art_table 40 624 0 217 5 0 5 5 0 8 0 art_node 32 149 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 87 0 5 3 0 3 3 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 3146 0 1648 95 0 95 95 0 8 0 ffsino 256 3146 0 1648 95 0 95 95 0 8 0 nchpl 144 4399 0 2710 63 0 63 63 0 8 0 rtmask 32 8 0 8 1 0 1 1 0 8 1 uvmvnodes 80 3801 0 0 78 0 78 78 0 8 0 vnodes 216 3801 0 0 212 0 212 212 0 8 0 namei 1024 14734 0 14734 2 0 2 2 0 8 2 kstatmem 264 98 0 76 2 0 2 2 0 8 0 scsiplug 72 6 0 6 1 0 1 1 0 8 1 scxspl 216 20026 0 20026 8 0 8 8 1 8 8 plimitpl 152 283 0 267 1 0 1 1 0 8 0 sigapl 424 1240 0 1169 9 0 9 9 0 8 0 knotepl 120 65141 0 65093 16 5 11 16 0 8 8 kqueuepl 184 396 0 386 4 0 4 4 0 8 3 pipepl 304 176 0 149 3 0 3 3 0 8 0 fdescpl 448 1196 0 1167 5 0 5 5 0 8 1 filepl 120 7756 0 7526 13 0 13 13 0 8 3 lockfpl 104 636 0 632 2 0 2 2 0 8 1 lockfspl 48 293 0 289 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 51 0 35 1 0 1 1 0 8 0 ucredpl 104 1211 0 1200 1 0 1 1 0 8 0 zombiepl 144 1172 0 1169 1 0 1 1 0 8 0 processpl 1168 1240 0 1169 6 0 6 6 0 8 0 procpl 656 2405 0 2330 8 0 8 8 0 8 0 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 552 2124 0 2091 14 3 11 12 0 8 8 mcl64k 65536 77 0 77 1 0 1 1 0 8 1 mcl16k 16384 5 0 5 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 10 0 10 1 0 1 1 0 8 1 mcl4k 4096 3448 0 3396 15 0 15 15 0 8 7 mcl2k 2048 1426 0 1415 7 0 7 7 0 8 4 mtagpl 96 35 0 13 1 0 1 1 0 8 0 mbufpl 256 18691 0 18502 369 347 22 369 0 8 7 bufpl 280 7680 0 1453 445 0 445 445 0 8 0 anonpl 24 179844 0 176287 54 0 54 54 0 187 9 amapchunkpl 152 31474 0 31021 28 0 28 28 0 158 6 amappl16 200 3529 0 3501 17 2 15 15 0 8 6 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 111 0 101 1 0 1 1 0 8 0 amappl13 176 33 0 33 1 0 1 1 0 8 1 amappl12 168 1853 0 1825 3 0 3 3 0 8 1 amappl11 160 50 0 39 1 0 1 1 0 8 0 amappl10 152 25 0 25 1 0 1 1 0 8 1 amappl9 144 243 0 243 1 0 1 1 0 8 1 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 121 0 111 1 0 1 1 0 8 0 amappl6 120 206 0 201 1 0 1 1 0 8 0 amappl5 112 125 0 119 1 0 1 1 0 8 0 amappl4 104 271 0 254 1 0 1 1 0 8 0 amappl3 96 6279 0 6182 4 0 4 4 0 8 0 amappl2 88 663 0 607 2 0 2 2 0 8 0 amappl1 80 11282 0 10737 13 0 13 13 0 8 1 amappl 88 8948 0 8796 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 1 0 1 1 0 8 1 dma128 128 258 0 258 1 0 1 1 0 8 1 dma64 64 7 0 7 1 0 1 1 0 8 1 dma32 32 8 0 8 1 0 1 1 0 8 1 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 89 0 5 2 0 2 2 0 8 0 uaddrrnd 24 1196 0 1167 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1196 0 1167 1 0 1 1 0 8 0 vmmpekpl 168 10001 0 9959 3 0 3 3 0 8 0 vmmpepl 168 78564 0 76725 95 0 95 95 0 357 4 vmsppl 368 1195 0 1167 4 0 4 4 0 8 1 rwobjpl 40 25547 0 20831 50 0 50 50 0 8 0 pdppl 4096 2398 0 2334 108 42 66 82 0 8 2 pvpl 32 512788 0 503557 130 0 130 130 0 265 24 pmappl 216 1195 0 1167 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 758 0 389 21 0 21 21 0 8 4 ddb> machine ddbcpu 0 No such command ddb> trace dt_ioctl_record_stop(ffff8000014f7d80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a83ec60) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e54298,1,fffffd8007bfb888,ffff80002a7e87d0) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd807dee1ad8,ffff80002a7e87d0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd807dee1ad8,ffff80002a7e87d0) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a7e87d0) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a7e87d0,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a7e87d0,ffff80002a83efd0,ffff80002a83ef20) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a83efd0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a83efd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7548fdbb19d0, count: -12 ddb> machine ddbcpu 1 No such command ddb> trace dt_ioctl_record_stop(ffff8000014f7d80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580 dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,1,2000,ffff80002a7e87d0) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232 spec_close(ffff80002a83ec60) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061e54298,1,fffffd8007bfb888,ffff80002a7e87d0) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807dee1ad8,ffff80002a7e87d0) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd807dee1ad8,ffff80002a7e87d0) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd807dee1ad8,ffff80002a7e87d0) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80002a7e87d0) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80002a7e87d0,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80002a7e87d0,ffff80002a83efd0,ffff80002a83ef20) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a83efd0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a83efd0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7548fdbb19d0, count: -12