uvm_fault(0xfffffd805de857d0, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff8152eec8 cs 8 rflags 10246 cr2 0 cpl 0 rsp ffff8000313daba0 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff8152eec8 Starting stack trace... panic(ffffffff833bbf38) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff8000313daaf0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000147d000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,2,2000,ffff8000fffee548) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,2,2000,ffff8000fffee548) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff8000313daca0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8063f91648,2,fffffd80097fb5b0,ffff8000fffee548) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c0a52c0,ffff8000fffee548) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c0a52c0,ffff8000fffee548) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c0a52c0,ffff8000fffee548) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c0a52c0,ffff8000fffee548) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffee548) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffee548,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffee548,ffff8000313db010,ffff8000313daf60) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff8000313db010) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000313db010) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72f1c5a68a80, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 207991 6637 0 0 0 0 syz-executor *315408 63849 0 0x2 0 1 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7bf3ca9afe10, count: 14 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}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd805de857d0, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7bf3ca9afe10, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a316cf0 rbx 0 rdx 0 rcx 0xffff80002a2722a8 rax 0x2a r8 0xffff80002a316c20 r9 0x1 r10 0xda75e9ef3d0e4284 r11 0x87e9533cd1cdaf9e r12 0 r13 0 r14 0 r15 0 rip 0xffffffff820714c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a316c70 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=315408 pid=63849 tcnt=1 stat=onproc flags process=2 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffd760,0xffff80002a272020 process=0xffff8000ffff39d0 user=0xffff80002a311000, vmspace=0xfffffd800b0273d0 estcpu=36, cpticks=42, pctcpu=0.9, user=3, sys=39, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6637 207991 63849 0 7 0 syz-executor 6637 467222 63849 0 2 0x4000000 syz-executor 24251 200716 35258 0 2 0 syz-executor 24251 176643 35258 0 3 0x4000080 fsleep syz-executor 6877 121189 59596 0 2 0 syz-executor 6877 46854 59596 0 3 0x4000080 fsleep syz-executor 69028 132546 1 0 3 0x100083 ttyin getty 41160 102378 0 0 3 0x14280 nfsidl nfsio 25156 442601 0 0 3 0x14200 bored sosplice 87480 254400 45630 0 2 0x2 syz-executor 62083 114203 45630 0 3 0x2 biowait syz-executor 35258 239578 45630 0 3 0x82 nanoslp syz-executor 29806 447156 45630 0 2 0x2 syz-executor 59596 292118 45630 0 3 0x82 nanoslp syz-executor 20001 124294 45630 0 3 0x82 nanoslp syz-executor *63849 315408 45630 0 7 0x2 syz-executor 19645 364932 45630 0 3 0x82 wait syz-executor 45630 91107 66064 0 3 0x82 kqread syz-executor 66064 125998 10173 0 3 0x10008a sigsusp ksh 10173 496540 82330 0 3 0x98 kqread sshd-session 82330 412095 96048 0 3 0x92 kqread sshd-session 96048 181628 1 0 3 0x88 kqread sshd 87438 229506 6971 74 3 0x1100092 bpf pflogd 6971 2091 1 0 3 0x80 sbwait pflogd 63302 427760 80682 73 3 0x1100090 kqread syslogd 80682 69028 1 0 3 0x100082 sbwait syslogd 59338 49826 1 0 3 0x100080 kqread resolvd 25962 20886 56801 77 3 0x100092 kqread dhcpleased 58252 43327 56801 77 3 0x100092 kqread dhcpleased 56801 486937 1 0 3 0x80 kqread dhcpleased 33693 468433 0 0 2 0x40014200 smr 51207 239053 0 0 2 0x14200 zerothread 14010 46304 0 0 3 0x14200 aiodoned aiodoned 28843 494678 0 0 3 0x14200 syncer update 37844 198662 0 0 3 0x14200 cleaner cleaner 50828 398836 0 0 3 0x14200 reaper reaper 83843 237197 0 0 3 0x14200 pgdaemon pagedaemon 16659 344297 0 0 3 0x14200 bored viomb 19938 218110 0 0 3 0x40014200 acpi0 acpi0 98749 301925 0 0 3 0x40014200 idle1 64469 100501 0 0 3 0x14200 bored softnet1 24024 217973 0 0 3 0x14200 netlock softnet0 12717 400455 0 0 2 0x40014200 systqmp 85645 231684 0 0 3 0x14200 bored systq 99224 314053 0 0 3 0x14200 tmoslp softclockmp 17807 46800 0 0 3 0x40014200 tmoslp softclock 19602 414174 0 0 3 0x40014200 idle0 1 148157 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 62083 (syz-executor) thread 0xffff8000fffeefa8 (114203) exclusive rrwlock inode r = 0 (0xfffffd806e0e3910) #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 (0xfffffd806c6e76a0) #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 10238 11134K 11361K 166960K 12344 0 pcb 17 17K 20K 166960K 274 0 rtable 170 9K 10K 166960K 525 0 pf 39 18K 23K 166960K 207 0 ifaddr 32 5K 7K 166960K 103 0 ifgroup 56 2K 2K 166960K 176 0 sysctl 4 1K 9K 166960K 13 0 counters 68 36K 37K 166960K 196 0 ioctlops 0 0K 4K 166960K 1775 0 iov 0 0K 24K 166960K 90 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1411 89K 89K 166960K 2338 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 120 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 106K 166960K 965 0 sigio 1 0K 0K 166960K 22 0 proc 72 115K 164K 166960K 643 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 215 0 in_multi 50 3K 7K 166960K 143 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 549 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 249 164K 175K 166960K 10764 0 UVM aobj 30 3K 3K 166960K 33 0 pinsyscall 41 82K 105K 166960K 2136 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 118 0 NDP 12 0K 2K 166960K 69 0 temp 64 8652K 8776K 166960K 45811 0 kqueue 13 20K 33K 166960K 228 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 120 103 0 100 1 0 1 1 0 8 0 rtentry 176 144 0 84 6 0 6 6 0 8 0 unpcb 144 1061 0 1043 10 4 6 6 0 8 5 syncache 336 6 0 6 3 2 1 1 0 8 1 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 416 0 411 19 10 9 13 0 8 8 arp 136 22 0 7 1 0 1 1 0 8 0 inpcb 328 1075 0 1063 17 7 10 12 0 8 8 nd6 152 28 0 18 1 0 1 1 0 8 0 pkpcb 40 11 0 11 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 50 0 50 1 0 1 1 0 8 1 pppxif 1504 9 0 9 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 7 0 0 1 0 1 1 0 482 0 pffrnode 88 7 0 0 1 0 1 1 0 8 0 pffrent 40 10 0 3 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 11 0 9 2 1 1 1 0 8 0 pfanchor 1288 3 0 2 2 1 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 79 0 27 1 0 1 1 0 8 0 pfstkey 128 85 0 33 2 0 2 2 0 8 0 pfstate 384 80 0 30 6 0 6 6 0 8 0 pfrule 1344 66 0 60 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 633 0 380 29 3 26 29 0 8 7 art_table 40 637 0 380 5 0 5 5 0 8 0 art_node 32 140 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 113 0 103 1 0 1 1 0 8 0 shmpl 112 30 0 3 1 0 1 1 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 3500 0 1991 96 0 96 96 0 8 0 ffsino 296 3500 0 1991 118 1 117 118 0 8 0 nchpl 144 4824 0 3113 64 0 64 64 0 8 0 rtmask 32 8 0 8 2 1 1 1 0 8 1 vnodes 216 3973 0 0 221 0 221 221 0 8 0 namei 1024 16622 0 16621 2 1 1 2 0 8 0 percpumem 16 113 0 64 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 2 2 1 1 1 0 8 0 kstatmem 264 108 0 80 4 1 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 9 0 9 2 1 1 1 0 8 1 scxspl 216 31449 0 31448 10 8 2 8 1 8 1 plimitpl 152 279 0 262 1 0 1 1 0 8 0 sigapl 424 1287 0 1239 7 1 6 7 0 8 0 knotepl 120 342 0 0 11 0 11 11 0 8 0 kqueuepl 224 513 0 504 10 8 2 9 0 8 1 pipepl 344 201 0 174 4 0 4 4 0 8 1 fdescpl 528 1265 0 1235 3 0 3 3 0 8 0 filepl 160 8759 0 8530 27 11 16 21 0 8 5 lockfpl 104 331 0 328 1 0 1 1 0 8 0 lockfspl 48 146 0 143 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 39 0 22 1 0 1 1 0 8 0 ucredpl 104 1670 0 1656 1 0 1 1 0 8 0 zombiepl 144 1242 0 1239 1 0 1 1 0 8 0 processpl 1232 1287 0 1239 6 2 4 5 0 8 0 procpl 664 2760 0 2709 6 0 6 6 0 8 0 sosppl 168 4 0 4 1 1 0 1 0 8 0 sockpl 752 2303 0 2270 39 27 12 18 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 17 1 16 17 0 8 0 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mtagpl 96 72 0 0 2 0 2 2 0 8 0 mbufpl 256 276 0 0 17 0 17 17 0 8 0 bufpl 280 13578 0 7441 439 0 439 439 0 8 0 anonpl 32 16971 0 0 137 0 137 137 0 246 0 amapchunkpl 152 36707 0 36130 38 6 32 36 0 158 2 amappl16 200 5917 0 5847 45 19 26 31 0 8 8 amappl15 192 50 0 50 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 440 0 439 1 0 1 1 0 8 0 amappl12 168 1648 0 1607 3 0 3 3 0 8 0 amappl11 160 23 0 23 1 1 0 1 0 8 0 amappl10 152 52 0 37 1 0 1 1 0 8 0 amappl9 144 261 0 261 1 1 0 1 0 8 0 amappl8 136 37 0 34 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 278 0 265 1 0 1 1 0 8 0 amappl5 112 77 0 67 1 0 1 1 0 8 0 amappl4 104 444 0 416 1 0 1 1 0 8 0 amappl3 96 6249 0 6160 3 0 3 3 0 8 0 amappl2 88 1407 0 1328 2 0 2 2 0 8 0 amappl1 80 13231 0 12640 16 2 14 15 0 8 0 amappl 88 9835 0 9664 5 0 5 5 0 92 0 uvmvnodes 80 3973 0 0 82 0 82 82 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 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 dma512 512 2 0 2 2 2 0 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 259 0 259 3 2 1 1 0 8 1 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 32 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1265 0 1235 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1265 0 1235 1 0 1 1 0 8 0 vmmpekpl 168 12123 0 12085 3 0 3 3 0 8 0 vmmpepl 168 88400 0 86466 125 13 112 113 0 357 8 vmsppl 488 1264 0 1235 7 2 5 5 0 8 1 rwobjpl 80 30995 0 26019 112 0 112 112 0 8 3 pdppl 4096 2538 0 2470 112 40 72 86 0 8 4 pvpl 32 28614 0 0 231 0 231 231 0 265 0 pmappl 256 1264 0 1235 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 322 0 65 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8380cff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83967f30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83967f30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff83967f30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83967f30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c42d610,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7bf3ca9afc00, count: 4 ddb{0}> trace x86_ipi_db(ffffffff8380cff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83967f30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83967f30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 softintr_dispatch(2) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(2) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsofttty() at Xsofttty+0x27 __mp_lock(ffffffff83967f30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83967f30) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c42d610,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7bf3ca9afc00, count: -11 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7bf3ca9afe10, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7bf3ca9afe10, count: -1