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ÝÛêøP™]~°l9eX¥©ÿmgŽ§¼œ†ó°=u»ƒó‰#)T(âú�kßK -#)T(âú�kßK -#)T(âú�kßK -#)T(âú�kßK -panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 946 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *481793 22027 0 0 0x4000000 0 syz-executor.6 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82722f34) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff827a0c78,ffffffff8275fee9,3b2,ffffffff827780fb) at __assert+0x25 sys/kern/subr_prf.c:157 rtrequest(1,ffff8000249a8920,4,ffff8000249a89e8,0) at rtrequest+0xc17 sys/net/route.c:946 rt_ifa_add(ffff800000e43000,840100,ffff800000e43058,0) at rt_ifa_add+0x260 sys/net/route.c:1126 in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d in_insert_prefix sys/netinet/in.c:796 [inline] in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d sys/netinet/in.c:729 in_ioctl_change_ifaddr(8040691a,ffff8000249a8c40,ffff800000e0f000,1) at in_ioctl_change_ifaddr+0x65e sys/netinet/in.c:526 ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 pru_control sys/sys/protosw.h:365 [inline] ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 sys/net/if.c:2345 sys_ioctl(ffff800021700028,ffff8000249a8d58,ffff8000249a8da0) at sys_ioctl+0x49e syscall(ffff8000249a8e20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeb67ce4a0f0, count: 4 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: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 946 ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82722f34) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff827a0c78,ffffffff8275fee9,3b2,ffffffff827780fb) at __assert+0x25 sys/kern/subr_prf.c:157 rtrequest(1,ffff8000249a8920,4,ffff8000249a89e8,0) at rtrequest+0xc17 sys/net/route.c:946 rt_ifa_add(ffff800000e43000,840100,ffff800000e43058,0) at rt_ifa_add+0x260 sys/net/route.c:1126 in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d in_insert_prefix sys/netinet/in.c:796 [inline] in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d sys/netinet/in.c:729 in_ioctl_change_ifaddr(8040691a,ffff8000249a8c40,ffff800000e0f000,1) at in_ioctl_change_ifaddr+0x65e sys/netinet/in.c:526 ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 pru_control sys/sys/protosw.h:365 [inline] ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 sys/net/if.c:2345 sys_ioctl(ffff800021700028,ffff8000249a8d58,ffff8000249a8da0) at sys_ioctl+0x49e syscall(ffff8000249a8e20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeb67ce4a0f0, count: -11 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000249a8750 rbx 0x10000 __ALIGN_SIZE+0xf000 rdx 0xffff800000e5c180 rcx 0 rax 0xffff800021700028 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd6384e67508a79a5 r11 0xf15d4a7484d44205 r12 0 r13 0xffff8000249a8920 r14 0 r15 0x1 rip 0xffffffff81a69eb8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000249a8740 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.6) pid=481793 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=84, nice=20 forw=0xffffffffffffffff, list=0xffff8000217018a0,0xffff8000217015f8 process=0xffff8000ffff37a0 user=0xffff8000249a3000, vmspace=0xfffffd8069b92978 estcpu=34, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18200 393809 41949 0 2 0x10 syz-executor.0 18200 467490 41949 0 2 0x4000010 syz-executor.0 37815 325225 34519 0 2 0 syz-executor.3 37815 221718 34519 0 3 0x4000080 fsleep syz-executor.3 22027 508307 40547 0 2 0 syz-executor.6 *22027 481793 40547 0 7 0x4000000 syz-executor.6 20785 130929 69297 0 3 0x80 nanoslp syz-executor.5 20785 353967 69297 0 3 0x4000000 smrbar syz-executor.5 19739 289048 99653 0 2 0x2 syz-executor.2 39399 357749 99653 0 3 0x82 nanoslp syz-executor.1 69297 148392 99653 0 3 0x82 nanoslp syz-executor.5 53582 142269 99653 0 3 0x82 nanoslp syz-executor.7 34519 260212 99653 0 3 0x82 nanoslp syz-executor.3 5744 278638 99653 0 3 0x82 piperd syz-executor.4 40547 381130 99653 0 3 0x82 nanoslp syz-executor.6 41949 400304 99653 0 3 0x82 nanoslp syz-executor.0 54460 399707 1 0 3 0x100083 ttyopn getty 2677 286789 0 0 3 0x14280 nfsidl nfsio 77379 157422 0 0 3 0x14280 nfsidl nfsio 81335 271575 0 0 3 0x14280 nfsidl nfsio 44166 171867 0 0 3 0x14280 nfsidl nfsio 46903 505089 0 0 3 0x14280 nfsidl nfsio 86006 288464 0 0 3 0x14280 nfsidl nfsio 67977 150156 0 0 3 0x14280 nfsidl nfsio 18878 96549 0 0 3 0x14280 nfsidl nfsio 3223 499799 0 0 3 0x14280 nfsidl nfsio 65182 416539 0 0 3 0x14280 nfsidl nfsio 48983 376439 0 0 3 0x14280 nfsidl nfsio 98381 225173 0 0 3 0x14280 nfsidl nfsio 41969 19189 0 0 3 0x14280 nfsidl nfsio 70080 312597 0 0 3 0x14280 nfsidl nfsio 48932 63785 0 0 3 0x14280 nfsidl nfsio 67131 494609 0 0 3 0x14280 nfsidl nfsio 56576 226679 0 0 3 0x14280 nfsidl nfsio 66274 251181 0 0 3 0x14280 nfsidl nfsio 18408 335883 0 0 3 0x14280 nfsidl nfsio 73024 272726 0 0 3 0x14280 nfsidl nfsio 43669 366743 0 0 3 0x14200 bored sosplice 99653 387559 27432 0 3 0x82 wait syz-fuzzer 99653 130736 27432 0 3 0x4000082 nanoslp syz-fuzzer 99653 129340 27432 0 3 0x4000082 thrsleep syz-fuzzer 99653 226036 27432 0 3 0x4000082 thrsleep syz-fuzzer 99653 232490 27432 0 3 0x4000082 wait syz-fuzzer 99653 187218 27432 0 3 0x4000082 wait syz-fuzzer 99653 323722 27432 0 3 0x4000082 thrsleep syz-fuzzer 99653 383751 27432 0 3 0x4000082 wait syz-fuzzer 99653 247060 27432 0 3 0x4000082 wait syz-fuzzer 99653 125159 27432 0 3 0x4000082 thrsleep syz-fuzzer 99653 211668 27432 0 3 0x4000082 wait syz-fuzzer 99653 392935 27432 0 3 0x4000082 wait syz-fuzzer 99653 267885 27432 0 3 0x4000082 wait syz-fuzzer 99653 185303 27432 0 3 0x4000082 kqread syz-fuzzer 27432 204972 41158 0 3 0x10008a sigsusp ksh 41158 472380 16089 0 3 0x9a kqread sshd 16089 425676 1 0 3 0x88 kqread sshd 17664 64330 54611 73 3 0x1100090 kqread syslogd 54611 185776 1 0 3 0x100082 netio syslogd 85540 51014 1 0 3 0x100080 kqread resolvd 25064 159788 0 0 3 0x14200 bored smr 27221 291176 0 0 2 0x14200 zerothread 56027 506976 0 0 3 0x14200 aiodoned aiodoned 76006 183515 0 0 3 0x14200 syncer update 85247 319261 0 0 3 0x14200 cleaner cleaner 4004 83289 0 0 3 0x14200 reaper reaper 66001 235054 0 0 3 0x14200 pgdaemon pagedaemon 33422 80606 0 0 3 0x14200 bored viomb 89759 292982 0 0 3 0x40014200 acpi0 acpi0 54963 326047 0 0 3 0x14200 bored softnet 87465 208443 0 0 3 0x14200 bored softnet 67771 519636 0 0 3 0x14200 bored softnet 22170 467073 0 0 3 0x14200 bored softnet 40909 364153 0 0 3 0x14200 bored systqmp 224 36020 0 0 3 0x14200 bored systq 81908 355657 0 0 2 0x40014200 softclock 65936 320620 0 0 3 0x40014200 idle0 1 302871 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 6442K 7739K 78643K 22632 0 pcb 15 28K 33K 78643K 4210 0 rtable 221 17K 17K 78643K 4648 0 ifaddr 87 26K 26K 78643K 1692 0 sysctl 3 1K 3K 78643K 76 0 counters 29 17K 17K 78643K 645 0 ioctlops 0 0K 4K 78643K 2251 0 iov 0 0K 24K 78643K 3030 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1656 104K 104K 78643K 11416 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 154 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2007 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 14 49K 77K 78643K 13537 0 sigio 0 0K 0K 78643K 241 0 proc 56 43K 83K 78643K 3119 0 subproc 104 6K 8K 78643K 1180 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1126 0 in_multi 85 5K 6K 78643K 1944 0 ether_multi 1 0K 0K 78643K 138 0 mrt 1 0K 0K 78643K 68 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 235 1049K 1049K 78643K 235 0 exec 0 0K 1K 78643K 3458 0 pfkey data 0 0K 0K 78643K 11 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 289 86K 102K 78643K 88269 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 662 0 NDP 16 0K 1K 78643K 579 0 temp 145 5770K 13962K 78643K 227265 0 kqueue 6 10K 26K 78643K 1258 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 1682 0 1681 17 16 1 5 0 8 0 rtentry 112 1403 0 1312 4 1 3 4 0 8 0 unpcb 144 15220 0 15211 141 140 1 10 0 8 0 syncache 296 43 0 43 10 10 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 22 0 22 2 2 0 1 0 8 0 tcpcb 776 6071 0 6063 194 193 1 14 0 8 0 arp 88 209 0 191 1 0 1 1 0 8 0 ipq 40 4 0 4 3 3 0 1 0 8 0 ipqe 40 17 0 17 3 3 0 1 0 8 0 inpcb 336 35397 0 35380 398 391 7 25 0 8 4 ip6q 72 23 0 23 3 2 1 1 0 8 1 ip6af 40 46 0 46 3 2 1 1 0 8 1 nd6 48 315 0 293 1 0 1 1 0 8 0 pkpcb 40 239 0 239 10 10 0 1 0 8 0 kcovpl 48 88 0 80 1 0 1 1 0 8 0 mppekey 1024 19 0 19 8 8 0 1 0 8 0 ppxss 1160 363 0 363 31 31 0 1 0 8 0 pppxif 1360 196 0 196 25 25 0 1 0 8 0 pfanchor 1280 389 0 204 22 4 18 22 0 8 0 rttmr 136 17 0 17 6 6 0 1 0 8 0 art_heap8 4096 12 0 11 10 9 1 3 0 8 0 art_heap4 256 6602 0 6219 67 43 24 32 0 8 0 art_table 32 6614 0 6230 6 2 4 5 0 8 0 art_node 16 1384 0 1306 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 10 2 1 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 2005 0 1995 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 20003 0 18520 94 0 94 94 0 8 0 ffsino 240 20003 0 18520 88 0 88 88 0 8 0 nchpl 144 37803 0 36163 63 0 63 63 0 8 0 rtmask 32 3 0 3 1 1 0 1 0 8 0 uvmvnodes 80 6024 0 0 123 0 123 123 0 8 0 vnodes 216 6024 0 0 335 0 335 335 0 8 0 namei 1024 146152 0 146151 11 10 1 3 0 8 0 vmpool 664 104 0 104 19 19 0 1 0 8 0 kstatmem 264 724 0 692 9 6 3 3 0 8 0 scsiplug 72 23 0 23 7 7 0 1 0 8 0 scxspl 216 108590 0 108590 27 26 1 8 0 8 1 plimitpl 152 2275 0 2261 1 0 1 1 0 8 0 sigapl 424 13812 0 13751 8 0 8 8 0 8 0 futexpl 64 159492 0 159491 6 5 1 1 0 8 0 knotepl 120 227480 0 227415 128 120 8 14 0 8 4 kqueuepl 184 3546 0 3541 59 58 1 6 0 8 0 pipepl 288 3641 0 3613 63 60 3 12 0 8 0 fdescpl 432 13652 0 13630 4 1 3 4 0 8 0 filepl 120 126365 0 126135 187 177 10 19 0 8 1 lockfpl 104 4084 0 4083 9 8 1 2 0 8 0 lockfspl 48 1170 0 1169 1 0 1 1 0 8 0 sessionpl 144 109 0 94 1 0 1 1 0 8 0 pgrppl 48 410 0 395 1 0 1 1 0 8 0 ucredpl 104 15215 0 15203 1 0 1 1 0 8 0 zombiepl 144 13753 0 13751 8 7 1 1 0 8 0 processpl 1008 13812 0 13751 12 3 9 9 0 8 0 procpl 696 34066 0 33988 22 13 9 10 0 8 0 sosppl 168 1213 0 1211 23 22 1 1 0 8 0 sockpl 456 52700 0 52675 1211 1199 12 45 0 8 8 mcl64k 65536 572 0 572 38 38 0 1 0 8 0 mcl16k 16384 318 0 318 39 39 0 1 0 8 0 mcl12k 12288 500 0 500 40 40 0 1 0 8 0 mcl9k 9216 172 0 172 39 39 0 1 0 8 0 mcl8k 8192 1788 0 1787 24 23 1 1 0 8 0 mcl4k 4096 1799 0 1798 19 18 1 1 0 8 0 mcl2k2 2112 110 0 109 36 35 1 1 0 8 0 mcl2k 2048 122165 0 122115 44 37 7 25 0 8 0 mtagpl 96 1063 0 1063 14 14 0 10 0 8 0 mbufpl 256 417391 0 417264 1334 1323 11 217 0 8 0 bufpl 288 24887 0 18493 458 0 458 458 0 8 0 anonpl 24 2852143 0 2833663 306 176 130 178 0 188 0 amapchunkpl 152 281602 0 280921 156 123 33 59 0 158 0 amappl16 200 29194 0 28513 224 187 37 49 0 8 0 amappl15 192 20 0 19 1 0 1 1 0 8 0 amappl14 184 470 0 462 2 1 1 2 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 1367 0 1364 1 0 1 1 0 8 0 amappl11 160 67 0 61 1 0 1 1 0 8 0 amappl10 152 136 0 125 1 0 1 1 0 8 0 amappl9 144 1044 0 1044 27 26 1 1 0 8 1 amappl8 136 761 0 677 4 0 4 4 0 8 0 amappl7 128 364 0 342 2 0 2 2 0 8 0 amappl6 120 612 0 596 2 1 1 2 0 8 0 amappl5 112 617 0 614 1 0 1 1 0 8 0 amappl4 104 1661 0 1635 2 1 1 2 0 8 0 amappl3 96 38484 0 38446 2 0 2 2 0 8 0 amappl2 88 15200 0 15147 3 0 3 3 0 8 0 amappl1 80 305520 0 304960 36 22 14 26 0 8 0 amappl 88 86655 0 86496 5 0 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 13756 0 13734 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 13756 0 13734 1 0 1 1 0 8 0 vmmpekpl 168 105816 0 105766 3 0 3 3 0 8 0 vmmpepl 168 1281722 0 1279309 458 326 132 170 0 357 0 vmsppl 344 13755 0 13734 3 0 3 3 0 8 0 rwobjpl 24 329036 0 321285 53 3 50 50 0 8 0 pdppl 4096 27518 0 27468 945 889 56 70 0 8 6 pvpl 32 5461877 0 5438376 623 376 247 330 0 265 41 pmappl 216 13755 0 13734 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3671 0 2915 29 5 24 28 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82722f34) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff827a0c78,ffffffff8275fee9,3b2,ffffffff827780fb) at __assert+0x25 sys/kern/subr_prf.c:157 rtrequest(1,ffff8000249a8920,4,ffff8000249a89e8,0) at rtrequest+0xc17 sys/net/route.c:946 rt_ifa_add(ffff800000e43000,840100,ffff800000e43058,0) at rt_ifa_add+0x260 sys/net/route.c:1126 in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d in_insert_prefix sys/netinet/in.c:796 [inline] in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d sys/netinet/in.c:729 in_ioctl_change_ifaddr(8040691a,ffff8000249a8c40,ffff800000e0f000,1) at in_ioctl_change_ifaddr+0x65e sys/netinet/in.c:526 ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 pru_control sys/sys/protosw.h:365 [inline] ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 sys/net/if.c:2345 sys_ioctl(ffff800021700028,ffff8000249a8d58,ffff8000249a8da0) at sys_ioctl+0x49e syscall(ffff8000249a8e20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeb67ce4a0f0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82722f34) at panic+0x161 sys/kern/subr_prf.c:198 __assert(ffffffff827a0c78,ffffffff8275fee9,3b2,ffffffff827780fb) at __assert+0x25 sys/kern/subr_prf.c:157 rtrequest(1,ffff8000249a8920,4,ffff8000249a89e8,0) at rtrequest+0xc17 sys/net/route.c:946 rt_ifa_add(ffff800000e43000,840100,ffff800000e43058,0) at rt_ifa_add+0x260 sys/net/route.c:1126 in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d in_insert_prefix sys/netinet/in.c:796 [inline] in_ifinit(ffff800000e0f000,ffff800000e43000,ffff8000249a8c50,1) at in_ifinit+0x35d sys/netinet/in.c:729 in_ioctl_change_ifaddr(8040691a,ffff8000249a8c40,ffff800000e0f000,1) at in_ioctl_change_ifaddr+0x65e sys/netinet/in.c:526 ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 pru_control sys/sys/protosw.h:365 [inline] ifioctl(fffffd805fbe2030,8040691a,ffff8000249a8c40,ffff800021700028) at ifioctl+0x1152 sys/net/if.c:2345 sys_ioctl(ffff800021700028,ffff8000249a8d58,ffff8000249a8da0) at sys_ioctl+0x49e syscall(ffff8000249a8e20) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeb67ce4a0f0, count: -11