kernel: protection fault trap, code=0 Stopped at sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace sys_msgrcv(ffff800021228b28,ffff800031893138,ffff800031893180) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff800021228b28,ffff800031893138,ffff800031893180) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff800031893200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800031893200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d40d7cd1e0, count: -3 ddb{1}> show registers rdi 0x106e __ALIGN_SIZE+0x6e rsi 0x20001cc8 rbp 0xffff800031893120 rbx 0x106e __ALIGN_SIZE+0x6e rdx 0 rcx 0 rax 0xffff800021228b28 r8 0x7f7fffffc000 r9 0x1 r10 0x3b56c7aeacbf87ca r11 0x358522aa7fadf0 r12 0xfffffd8073622cd0 r13 0xdead4110dead4110 r14 0xffff800000cad500 r15 0x1c0 rip 0xffffffff81e3167f sys_msgrcv+0x2df cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800031893090 ss 0x10 sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{1}> show proc PROC (syz-executor.6) pid=446862 stat=onproc flags process=10 proc=4000000 pri=36, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800021229350,0xffff800021228310 process=0xffff8000ffff65d8 user=0xffff80003188e000, vmspace=0xfffffd807e88c6f8 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79259 365422 14100 32767 7 0x10 syz-executor.6 79259 217214 14100 32767 2 0x4000010 syz-executor.6 *79259 446862 14100 32767 7 0x4000010 syz-executor.6 79259 402368 14100 32767 2 0x4000010 syz-executor.6 57587 521392 74363 32767 3 0x90 nanoslp syz-executor.7 74363 397921 45684 0 3 0x82 wait syz-executor.7 57674 256278 26646 32767 3 0x10 biowait syz-executor.0 26646 451069 45684 0 3 0x82 wait syz-executor.0 14565 240793 59381 0 3 0x100082 netio arp 59381 511967 50602 0 3 0x10008a sigsusp sh 14100 53130 18759 32767 3 0x90 nanoslp syz-executor.6 41994 510001 76956 32767 3 0x90 piperd syz-executor.5 19623 256379 55136 32767 3 0x10 biowait syz-executor.4 76956 276561 45684 0 3 0x82 wait syz-executor.5 50602 73901 1 0 3 0x80 wait syz-executor.7 28496 492556 40036 0 3 0x100082 netio ndp 40036 321782 19984 0 3 0x10008a sigsusp sh 63642 326833 7789 32767 3 0x10 getblk syz-executor.1 18759 412666 45684 0 3 0x82 wait syz-executor.6 2657 40736 24455 32767 3 0x90 nanoslp syz-executor.3 97145 205168 2471 32767 3 0x90 piperd syz-executor.2 55136 150416 45684 0 3 0x82 wait syz-executor.4 2471 486316 45684 0 3 0x82 wait syz-executor.2 24455 510821 45684 0 3 0x82 wait syz-executor.3 7789 338352 45684 0 3 0x82 wait syz-executor.1 19984 392900 1 0 3 0x80 wait syz-executor.0 45684 28668 58514 0 3 0x82 wait syz-fuzzer 45684 336857 58514 0 3 0x4000082 nanoslp syz-fuzzer 45684 444626 58514 0 3 0x4000082 wait syz-fuzzer 45684 507568 58514 0 3 0x4000082 wait syz-fuzzer 45684 298334 58514 0 3 0x4000082 wait syz-fuzzer 45684 463872 58514 0 3 0x4000082 wait syz-fuzzer 45684 521786 58514 0 3 0x4000082 thrsleep syz-fuzzer 45684 142351 58514 0 3 0x4000082 wait syz-fuzzer 45684 123243 58514 0 3 0x4000082 thrsleep syz-fuzzer 45684 466310 58514 0 3 0x4000082 wait syz-fuzzer 45684 67283 58514 0 3 0x4000082 thrsleep syz-fuzzer 45684 9863 58514 0 3 0x4000082 wait syz-fuzzer 45684 207996 58514 0 3 0x4000082 kqread syz-fuzzer 45684 354020 58514 0 3 0x4000082 thrsleep syz-fuzzer 45684 426512 58514 0 3 0x4000082 thrsleep syz-fuzzer 58514 208622 59825 0 3 0x10008a sigsusp ksh 59825 359101 6958 0 3 0x9a kqread sshd 43506 127180 1 0 3 0x100083 ttyin getty 6958 45588 1 0 3 0x88 kqread sshd 34353 432283 47988 73 3 0x1100090 kqread syslogd 47988 508978 1 0 3 0x100082 netio syslogd 80865 63383 1 0 3 0x100080 kqread resolvd 82908 496048 82509 77 3 0x100092 kqread dhcpleased 72389 334505 82509 77 3 0x100092 kqread dhcpleased 82509 312347 1 0 3 0x80 kqread dhcpleased 27990 186599 0 0 3 0x14200 bored smr 916 386178 0 0 3 0x14200 pgzero zerothread 28834 351062 0 0 3 0x14200 aiodoned aiodoned 29756 21982 0 0 3 0x14200 syncer update 19816 221645 0 0 3 0x14200 cleaner cleaner 90559 186618 0 0 3 0x14200 reaper reaper 81025 396834 0 0 3 0x14200 pgdaemon pagedaemon 34928 88119 0 0 3 0x14200 bored viomb 38440 376405 0 0 3 0x40014200 acpi0 acpi0 40334 82454 0 0 3 0x40014200 idle1 10735 94191 0 0 3 0x14200 bored softnet 60966 29067 0 0 3 0x14200 bored softnet 83967 16953 0 0 3 0x14200 bored softnet 25623 183030 0 0 3 0x14200 bored softnet 88700 110120 0 0 3 0x14200 bored systqmp 67264 185891 0 0 3 0x14200 bored systq 93275 313519 0 0 3 0x40014200 bored softclock 27373 214319 0 0 3 0x40014200 idle0 1 49379 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 79259 (syz-executor.6) thread 0xffff800021228b28 (446862) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82c2ca98) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:405 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 rw_enter+0x35a sys/kern/kern_rwlock.c:286 #5 uvmfault_lookup+0xc9 sys/uvm/uvm_fault.c:1773 #6 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:673 #7 uvm_fault+0xf2 sys/uvm/uvm_fault.c:601 #8 kpageflttrap+0x22e sys/arch/amd64/amd64/trap.c:284 #9 kerntrap+0xef sys/arch/amd64/amd64/trap.c:339 #10 alltraps_kern_meltdown+0x7b #11 copyout+0x53 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #13 Xsyscall+0x128 Process 57674 (syz-executor.0) thread 0xffff80002121c020 (256278) exclusive rrwlock inode r = 0 (0xfffffd806c24ed68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1324 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 #11 namei+0x55a sys/kern/vfs_lookup.c:250 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c24e818) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vget+0x1fc sys/kern/vfs_subr.c:676 #6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:566 #10 namei+0x55a sys/kern/vfs_lookup.c:250 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #13 Xsyscall+0x128 Process 19623 (syz-executor.4) thread 0xffff8000212aadc8 (256379) exclusive rrwlock inode r = 0 (0xfffffd806c24ef88) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80679b05f0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #9 Xsyscall+0x128 Process 63642 (syz-executor.1) thread 0xffff80002121cdb8 (326833) exclusive rrwlock inode r = 0 (0xfffffd806c24e3d8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_closefile+0xc6 vn_close sys/kern/vfs_vnops.c:292 [inline] #5 vn_closefile+0xc6 sys/kern/vfs_vnops.c:609 #6 fdrop+0xc7 sys/kern/kern_descrip.c:1274 #7 closef+0x11c sys/kern/kern_descrip.c:1258 #8 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x606 sys/arch/amd64/amd64/trap.c:625 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10194 6409K 6421K 78643K 11290 0 pcb 13 8K 8K 78643K 13 0 rtable 234 6K 6K 78643K 385 0 ifaddr 73 24K 24K 78643K 85 0 counters 60 35K 35K 78643K 64 0 ioctlops 0 0K 2K 78643K 28 0 iov 0 0K 2K 78643K 10 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1298 81K 81K 78643K 1317 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 26 97K 125K 78643K 254 0 sigio 0 0K 0K 78643K 2 0 proc 56 78K 103K 78643K 513 0 subproc 130 8K 8K 78643K 130 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 99 6K 6K 78643K 111 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 386 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 8 62K 64K 78643K 10 0 UVM amap 311 97K 97K 78643K 3341 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 11 0K 1K 78643K 31 0 temp 99 5766K 5830K 78643K 4515 0 kqueue 12 18K 20K 78643K 28 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 40 0 35 1 0 1 1 0 8 0 rtentry 112 124 0 14 4 0 4 4 0 8 0 unpcb 144 126 0 113 3 0 3 3 0 8 2 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpqe 32 33 0 33 2 1 1 1 0 8 1 tcpcb 776 25 0 21 1 0 1 1 0 8 0 arp 120 21 0 3 1 0 1 1 0 8 0 inpcb 368 87 0 80 1 0 1 1 0 8 0 nd6 48 26 0 2 1 0 1 1 0 8 0 kcovpl 48 10 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 498 0 46 29 0 29 29 0 8 0 art_table 32 499 0 46 4 0 4 4 0 8 0 art_node 16 123 0 23 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 11 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1576 0 143 90 0 90 90 0 8 0 ffsino 272 1576 0 143 96 0 96 96 0 8 0 nchpl 144 1957 0 323 63 0 63 63 0 8 0 uvmvnodes 80 1715 0 0 35 0 35 35 0 8 0 vnodes 216 1715 0 0 96 0 96 96 0 8 0 namei 1024 7405 0 7404 3 2 1 2 0 8 0 percpumem 16 45 0 2 1 0 1 1 0 8 0 kstatmem 264 26 0 4 2 0 2 2 0 8 0 scxspl 216 6948 0 6946 12 11 1 8 0 8 0 plimitpl 152 48 0 23 2 0 2 2 0 8 1 sigapl 424 542 0 487 7 0 7 7 0 8 0 futexpl 64 916 0 916 2 1 1 1 0 8 1 knotepl 120 108 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 193 0 159 6 0 6 6 0 8 3 fdescpl 496 525 0 488 7 1 6 6 0 8 0 filepl 152 2554 0 2281 14 0 14 14 0 8 3 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 25 0 7 1 0 1 1 0 8 0 pgrppl 48 25 0 7 1 0 1 1 0 8 0 ucredpl 104 138 0 120 1 0 1 1 0 8 0 zombiepl 144 489 0 487 2 1 1 1 0 8 0 processpl 1072 542 0 487 6 1 5 5 0 8 0 procpl 696 707 0 635 10 2 8 8 0 8 0 srpgc 96 2 0 2 1 0 1 1 0 8 1 sockpl 488 253 0 228 12 0 12 12 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 392 0 0 48 0 48 48 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 440 0 0 27 0 27 27 0 8 0 bufpl 288 4089 0 146 282 0 282 282 0 8 0 anonpl 24 146121 0 133598 80 0 80 80 0 186 0 amapchunkpl 152 9345 0 8626 36 1 35 36 0 158 0 amappl16 200 2703 0 2424 19 0 19 19 0 8 0 amappl15 192 14 0 13 1 0 1 1 0 8 0 amappl14 184 152 0 138 2 1 1 2 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 421 0 416 1 0 1 1 0 8 0 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 36 0 24 1 0 1 1 0 8 0 amappl9 144 965 0 965 1 1 0 1 0 8 0 amappl8 136 162 0 117 2 0 2 2 0 8 0 amappl7 128 140 0 118 2 0 2 2 0 8 0 amappl6 120 188 0 174 2 1 1 2 0 8 0 amappl5 112 125 0 119 1 0 1 1 0 8 0 amappl4 104 483 0 450 2 0 2 2 0 8 0 amappl3 96 882 0 821 2 0 2 2 0 8 0 amappl2 88 915 0 833 3 1 2 3 0 8 0 amappl1 80 14096 0 13271 28 8 20 26 0 8 1 amappl 88 2845 0 2641 7 1 6 6 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 24 525 0 488 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 525 0 488 1 0 1 1 0 8 0 vmmpekpl 168 10275 0 10219 3 0 3 3 0 8 0 vmmpepl 168 57540 0 54833 154 14 140 140 0 357 3 vmsppl 440 524 0 488 5 0 5 5 0 8 0 rwobjpl 56 18792 0 15570 49 2 47 47 0 8 0 pdppl 4096 1057 0 976 141 48 93 95 0 8 12 pvpl 32 366835 0 348167 362 80 282 361 0 265 123 pmappl 248 524 0 488 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 729 0 52 20 0 20 20 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82bc1ff0) 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(ffffffff82c2c890) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c2c890) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800031862f30,ffff80000006ba00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f __mp_lock(ffffffff82c2c890) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c2c890) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff800031863100) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800031863100) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffda6c0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at sys_msgrcv+0x2df: movq 0x10(%r13),%rdi ddb{1}> trace sys_msgrcv(ffff800021228b28,ffff800031893138,ffff800031893180) at sys_msgrcv+0x2df msg_copyout sys/kern/sysv_msg.c:639 [inline] sys_msgrcv(ffff800021228b28,ffff800031893138,ffff800031893180) at sys_msgrcv+0x2df sys/kern/sysv_msg.c:349 syscall(ffff800031893200) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800031893200) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d40d7cd1e0, count: -3