Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0x420 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff8104bcd5 stack pointer = 0x0:0xfffffe00244fb700 frame pointer = 0x0:0xfffffe00244fb7c0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 812 (syz-executor.0) trap number = 12 panic: page fault cpuid = 1 time = 1579311316 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00244fb300 vpanic() at vpanic+0x1ce/frame 0xfffffe00244fb370 panic() at panic+0x43/frame 0xfffffe00244fb3d0 trap_fatal() at trap_fatal+0x4cc/frame 0xfffffe00244fb450 trap_pfault() at trap_pfault+0xdc/frame 0xfffffe00244fb4f0 trap() at trap+0x441/frame 0xfffffe00244fb630 calltrap() at calltrap+0x8/frame 0xfffffe00244fb630 --- trap 0xc, rip = 0xffffffff8104bcd5, rsp = 0xfffffe00244fb700, rbp = 0xfffffe00244fb7c0 --- _sx_xlock_hard() at _sx_xlock_hard+0x335/frame 0xfffffe00244fb7c0 _sx_xlock() at _sx_xlock+0x134/frame 0xfffffe00244fb810 sosend_generic() at sosend_generic+0x197/frame 0xfffffe00244fb8d0 sosend() at sosend+0xc6/frame 0xfffffe00244fb940 kern_sendit() at kern_sendit+0x32d/frame 0xfffffe00244fb9f0 sendit() at sendit+0x226/frame 0xfffffe00244fba50 sys_sendto() at sys_sendto+0x5c/frame 0xfffffe00244fbab0 ia32_syscall() at ia32_syscall+0x48c/frame 0xfffffe00244fbbf0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x8143042 KDB: enter: panic [ thread pid 812 tid 100149 ] Stopped at kdb_enter+0x67: movq $0,0x1467376(%rip) db> db> set $lines = 0 db> set $maxwidth = 0 db> show registers cs 0x20 ds 0x3b ll+0x1a es 0x3b ll+0x1a fs 0x13 gs 0x1b ss 0 rax 0x12 rcx 0x80 ll+0x5f rdx 0xffffffff818ed59d rbx 0 rsp 0xfffffe00244fb2e0 rbp 0xfffffe00244fb300 rsi 0x1 rdi 0 r8 0 r9 0xffffffff r10 0 r11 0xfffff8003aa87bd0 r12 0xffffffff82068d90 ddb_dbbe r13 0 r14 0xffffffff819350cb r15 0xffffffff819350cb rip 0xffffffff810aed27 kdb_enter+0x67 rflags 0x200082 kernphys+0x82 kdb_enter+0x67: movq $0,0x1467376(%rip) db> show proc Process 812 (syz-executor.0) at 0xfffff8003aa9da60: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 775 at 0xfffff8003a313a60 ABI: FreeBSD ELF32 arguments: /root/syz-executor.0 reaper: 0xfffff800032fa530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff8003aa63000 (map 0xfffff8003aa63000) (map.pmap 0xfffff8003aa630c0) (pmap 0xfffff8003aa63120) threads: 2 100116 s syz-executor.0 100149 Run CPU 1 syz-executor.0 db> ps pid ppid pgrp uid state wmesg wchan cmd 812 775 775 0 T (threaded) syz-executor.0 100116 s syz-executor.0 100149 Run CPU 1 syz-executor.0 804 798 804 0 Ss select 0xfffff80003cfb6c0 dhclient 801 1 801 0 Ss select 0xfffff80003cfb740 dhclient 798 790 422 65 S select 0xfffff80003cfd8c0 dhclient 790 422 422 0 S wait 0xfffff80003e0b530 sh 775 773 775 0 Ss nanslp 0xffffffff824feca0 syz-executor.0 773 771 771 0 S (threaded) syz-execprog 100073 S uwait 0xfffff800032fc300 syz-execprog 100103 S uwait 0xfffff80003d62b00 syz-execprog 100104 S kqread 0xfffff8000333b900 syz-execprog 100105 S uwait 0xfffff80003d62d00 syz-execprog 100106 S uwait 0xfffff80003d62e80 syz-execprog 100107 S uwait 0xfffff80003d61180 syz-execprog 100108 S uwait 0xfffff80003d62600 syz-execprog 100109 S uwait 0xfffff80003a49d80 syz-execprog 100111 S uwait 0xfffff80003a48000 syz-execprog 771 769 771 0 Ss pause 0xfffff8003a311b08 csh 769 680 769 0 Ss select 0xfffff80003cfba40 sshd 746 1 746 0 Ss+ ttyin 0xfffff800033f6cb0 getty 745 1 745 0 Ss+ ttyin 0xfffff800033f9cb0 getty 744 1 744 0 Ss+ ttyin 0xfffff80003abe0b0 getty 743 1 743 0 Ss+ ttyin 0xfffff80003abe4b0 getty 742 1 742 0 Ss+ ttyin 0xfffff80003abe8b0 getty 741 1 741 0 Ss+ ttyin 0xfffff80003abecb0 getty 740 1 740 0 Ss+ ttyin 0xfffff80003abd0b0 getty 739 1 739 0 Ss+ ttyin 0xfffff80003abd4b0 getty 738 1 738 0 Ss+ ttyin 0xfffff80003abd8b0 getty 736 1 22 0 S+ piperd 0xfffff80003da02f8 logger 735 734 22 0 S+ nanslp 0xffffffff824feca1 sleep 734 1 22 0 S+ wait 0xfffff80003e04a60 sh 684 1 684 0 Ss nanslp 0xffffffff824feca0 cron 680 1 680 0 Ss select 0xfffff80003cfca40 sshd 493 1 493 0 Ss select 0xfffff80003cfc2c0 syslogd 422 1 422 0 Ss wait 0xfffff80003e0aa60 devd 421 1 421 65 Ss select 0xfffff80003cfb940 dhclient 336 1 336 0 Ss select 0xfffff80003cfcac0 dhclient 333 1 333 0 Ss select 0xfffff80003cfb9c0 dhclient 21 0 0 0 DL syncer 0xffffffff825d5118 [syncer] 20 0 0 0 DL vlruwt 0xfffff80003b01000 [vnlru] 19 0 0 0 DL (threaded) [bufdaemon] 100065 D qsleep 0xffffffff825d4618 [bufdaemon] 100066 D - 0xffffffff8200a980 [bufspacedaemon-0] 100080 D sdflush 0xfffff80003d058e8 [/ worker] 18 0 0 0 DL psleep 0xffffffff825f0088 [vmdaemon] 17 0 0 0 DL (threaded) [pagedaemon] 100063 D psleep 0xffffffff8261cfd8 [dom0] 100069 D launds 0xffffffff8261cfe4 [laundry: dom0] 100070 D umarcl 0xffffffff8153bf50 [uma] 16 0 0 0 DL - 0xffffffff82359530 [rand_harvestq] 15 0 0 0 DL waiting 0xffffffff826625a0 [sctp_iterator] 9 0 0 0 DL - 0xffffffff825d401c [soaiod4] 8 0 0 0 DL - 0xffffffff825d401c [soaiod3] 7 0 0 0 DL - 0xffffffff825d401c [soaiod2] 6 0 0 0 DL - 0xffffffff825d401c [soaiod1] 5 0 0 0 DL (threaded) [cam] 100031 D - 0xffffffff82234940 [doneq0] 100062 D - 0xffffffff82234808 [scanner] 4 0 0 0 DL crypto_ 0xfffff800031f8e90 [crypto returns 1] 3 0 0 0 DL crypto_ 0xfffff800031f8e30 [crypto returns 0] 2 0 0 0 DL crypto_ 0xffffffff825ea0f8 [crypto] 14 0 0 0 DL seqstat 0xfffff80003362888 [sequencer 00] 13 0 0 0 DL (threaded) [geom] 100022 D - 0xffffffff8261b608 [g_event] 100023 D - 0xffffffff8261b618 [g_up] 100024 D - 0xffffffff8261b610 [g_down] 12 0 0 0 WL (threaded) [intr] 100006 I [swi5: fast taskq] 100010 I [swi6: task queue] 100011 I [swi6: Giant taskq] 100017 I [swi3: vm] 100018 I [swi4: clock (0)] 100019 I [swi4: clock (1)] 100020 I [swi1: netisr 0] 100032 I [irq24: virtio_pci0] 100033 I [irq25: virtio_pci0] 100034 I [irq26: virtio_pci0] 100035 I [irq27: virtio_pci0] 100036 I [irq28: virtio_pci1] 100037 I [irq29: virtio_pci1] 100038 I [irq30: virtio_pci1] 100039 I [irq31: virtio_pci1] 100040 I [irq32: virtio_pci1] 100045 I [irq10: virtio_pci2] 100047 I [irq1: atkbd0] 100048 I [irq12: psm0] 100049 I [swi0: uart uart++] 11 0 0 0 RL (threaded) [idle] 100003 Run CPU 0 [idle: cpu0] 100004 CanRun [idle: cpu1] 1 0 1 0 SLs wait 0xfffff800032fa530 [init] 10 0 0 0 DL audit_w 0xffffffff82663230 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff82609bf8 [swapper] 100005 D - 0xfffff8000333d000 [thread taskq] 100007 D - 0xfffff8000333cd00 [kqueue_ctx taskq] 100008 D - 0xfffff8000333cc00 [config_0] 100009 D - 0xfffff8000333cb00 [aiod_kick taskq] 100012 D - 0xfffff8000333c800 [if_config_tqg_0] 100013 D - 0xfffff8000333c700 [if_io_tqg_0] 100014 D - 0xfffff8000333c600 [if_io_tqg_1] 100015 D - 0xfffff8000333c500 [softirq_0] 100016 D - 0xfffff8000333c400 [softirq_1] 100021 D - 0xfffff8000333c300 [firmware taskq] 100026 D - 0xfffff8000333c200 [crypto_0] 100027 D - 0xfffff8000333c200 [crypto_1] 100041 D - 0xfffff8000333c000 [vtnet0 rxq 0] 100042 D - 0xfffff8000333be00 [vtnet0 txq 0] 100043 D - 0xfffff8000333bd00 [vtnet0 rxq 1] 100044 D - 0xfffff8000333bc00 [vtnet0 txq 1] 100046 D vtbslp 0xfffff800034d5400 [virtio_balloon] 100050 D - 0xfffff8000333bb00 [mca taskq] 100053 D - 0xffffffff81cd8ac1 [deadlkres] 100057 D - 0xfffff80003b32100 [acpi_task_0] 100058 D - 0xfffff80003b32100 [acpi_task_1] 100059 D - 0xfffff80003b32100 [acpi_task_2] 100061 D - 0xfffff8000333c100 [CAM taskq] db> show all locks db> show malloc Type InUse MemUse Requests devbuf 4213 4851K 4238 vtbuf 24 1968K 46 sysctloid 26527 1553K 26591 kobj 331 1324K 487 newblk 370 1117K 419 vfscache 4 1025K 4 inodedep 63 543K 87 pcb 24 537K 96 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 114 232K 877 acpica 1674 185K 49750 vnet_data 1 168K 1 pagedep 17 132K 30 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 102 102K 113 linker 221 89K 243 bus 962 78K 3306 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 493 62K 493 filedesc 5 37K 33 BPF 19 36K 19 gtaskqueue 22 34K 22 umtx 260 33K 260 hostcache 1 32K 1 shm 1 32K 1 kdtrace 162 32K 1720 DEVFS3 121 31K 131 msg 4 30K 4 DEVFS_RULE 56 27K 56 kbdmux 6 22K 6 vmem 3 19K 4 temp 22 17K 1672 ufs_mount 3 17K 4 proc 3 17K 3 tty 16 16K 16 tidhash 1 16K 1 ifaddr 41 16K 43 ithread 89 15K 89 bus-sc 30 14K 1394 KTRACE 100 13K 100 kenv 95 12K 99 eventhandler 123 11K 123 pfs_nodes 20 10K 20 GEOM 60 10K 487 rman 82 10K 423 bmsafemap 3 9K 55 devstat 4 9K 4 UART 12 9K 12 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 cred 29 8K 250 audit_evclass 231 8K 289 lltable 20 7K 20 ifnet 4 7K 4 CAM DEV 3 6K 508 ether_multi 73 6K 78 vt 11 6K 11 kqueue 52 6K 817 sglist 5 6K 5 CAM queue 5 6K 1522 in6_multi 41 5K 41 routetbl 37 5K 41 plimit 19 5K 359 ufs_dirhash 24 5K 24 taskqueue 42 5K 42 memdesc 1 4K 1 MCA 32 4K 32 diradd 32 4K 52 evdev 4 4K 4 UMA 234 4K 234 select 28 4K 28 hhook 13 4K 13 dirrem 25 4K 36 session 23 3K 35 pgrp 23 3K 35 acpisem 22 3K 22 terminal 11 3K 11 uidinfo 4 3K 5 proc-args 44 3K 512 lockf 20 3K 33 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 CAM XPT 22 2K 541 Unitno 25 2K 39 acpidev 20 2K 20 crypto 2 2K 2 msi 9 2K 9 mkdir 9 2K 38 freefile 8 1K 17 indirdep 4 1K 4 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 sctp_ifa 8 1K 8 clone 8 1K 8 vnodemarker 2 1K 8 NFSD session 1 1K 1 ip6ndp 6 1K 9 CAM periph 4 1K 270 in_multi 3 1K 4 toponodes 6 1K 6 isadev 6 1K 6 mount 16 1K 86 pci_link 10 1K 10 inpcbpolicy 19 1K 255 CAM SIM 2 1K 2 softdep 1 1K 1 pfil 4 1K 4 chacha20random 1 1K 1 epoch 4 1K 4 cdev 2 1K 2 newdirblk 7 1K 19 encap_export_host 8 1K 8 mld 3 1K 3 sctp_ifn 3 1K 3 igmp 3 1K 3 tun 4 1K 4 osd 3 1K 9 DEVFSP 5 1K 5 freework 2 1K 34 freeblks 1 1K 33 vnodes 1 1K 1 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 feeder 7 1K 7 loginclass 3 1K 3 CAM path 4 1K 1030 apmdev 1 1K 1 atkbddev 2 1K 2 pmchooks 1 1K 1 prison 4 1K 4 filecaps 5 1K 72 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 soname 4 1K 5768 nexusdev 5 1K 5 entropy 2 1K 38 tcpfunc 1 1K 1 sctp_vrf 1 1K 1 vnet 1 1K 1 acpiintr 1 1K 1 pmc 1 1K 1 cpus 2 1K 2 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 p1003.1b 1 1K 1 CAM CCB 0 0K 1774 madt_table 0 0K 2 PUC 0 0K 0 ppbusdev 0 0K 0 agtiapi_MemAlloc malloc 0 0K 0 osti_cacheable 0 0K 0 tempbuff 0 0K 0 tempbuff 0 0K 0 pvscsi 0 0K 0 smartpqi 0 0K 0 ag_tgt_map_t malloc 0 0K 0 ag_slr_map_t malloc 0 0K 0 lDevFlags * malloc 0 0K 0 tiDeviceHandle_t * malloc 0 0K 0 ag_portal_data_t malloc 0 0K 0 ag_device_t malloc 0 0K 0 STLock malloc 0 0K 0 CCB List 0 0K 0 iavf 0 0K 0 ixl 0 0K 0 sr_iov 0 0K 0 OCS 0 0K 0 OCS 0 0K 0 nvme 0 0K 0 nvd 0 0K 0 netmap 0 0K 0 mwldev 0 0K 0 MVS driver 0 0K 0 fpukern_ctx 0 0K 0 xen_intr 0 0K 0 CAM ccb queue 0 0K 0 xen_hvm 0 0K 0 legacydrv 0 0K 0 qpidrv 0 0K 0 mrsasbuf 0 0K 0 mpt_user 0 0K 0 dmar_idpgtbl 0 0K 0 dmar_dom 0 0K 0 dmar_ctx 0 0K 0 dmar_dmamap 0 0K 0 mps_user 0 0K 0 MPSSAS 0 0K 0 isci 0 0K 0 bxe_ilt 0 0K 0 xenbus 0 0K 0 vm_fictitious 0 0K 0 mps 0 0K 0 mpr_user 0 0K 0 MPRSAS 0 0K 0 UMAHash 0 0K 0 vm_pgdata 0 0K 0 jblocks 0 0K 0 savedino 0 0K 13 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 2 jsegdep 0 0K 0 jseg 0 0K 0 jfreefrag 0 0K 0 jfreeblk 0 0K 0 jnewblk 0 0K 0 jmvref 0 0K 0 jremref 0 0K 0 jaddref 0 0K 0 freedep 0 0K 0 freefrag 0 0K 5 allocindir 0 0K 0 allocdirect 0 0K 0 ufs_trim 0 0K 0 mactemp 0 0K 0 audit_trigger 0 0K 0 audit_pipe_presel 0 0K 0 audit_pipeent 0 0K 0 audit_pipe 0 0K 0 audit_evname 0 0K 0 audit_bsm 0 0K 0 audit_gidset 0 0K 0 audit_text 0 0K 0 audit_path 0 0K 0 audit_data 0 0K 0 audit_cred 0 0K 0 xform 0 0K 0 NLM 0 0K 0 nfsclient_nlminfo 0 0K 0 nfsclient_lock 0 0K 0 NFS FHA 0 0K 0 ipsec-spdcache 0 0K 0 ipsec-reg 0 0K 0 ipsec-misc 0 0K 0 ipsecrequest 0 0K 0 ip6opt 0 0K 3 ip6_msource 0 0K 0 ip6_moptions 0 0K 0 in6_mfilter 0 0K 0 frag6 0 0K 0 tcplog 0 0K 0 LRO 0 0K 0 sctp_mcore 0 0K 0 sctp_socko 0 0K 0 sctp_iter 0 0K 5 sctp_mvrf 0 0K 0 sctp_timw 0 0K 0 sctp_cpal 0 0K 0 sctp_cmsg 0 0K 0 sctp_stre 0 0K 0 sctp_athi 0 0K 0 sctp_athm 0 0K 0 sctp_atky 0 0K 0 sctp_atcl 0 0K 0 sctp_a_it 0 0K 5 sctp_aadr 0 0K 0 sctp_stro 0 0K 0 sctp_stri 0 0K 0 sctp_map 0 0K 0 newreno data 0 0K 0 ip_msource 0 0K 0 ip_moptions 0 0K 0 in_mfilter 0 0K 0 ipid 0 0K 0 80211scan 0 0K 0 80211ratectl 0 0K 0 80211power 0 0K 0 80211nodeie 0 0K 0 80211node 0 0K 0 80211mesh_gt 0 0K 0 80211mesh_rt 0 0K 0 80211perr 0 0K 0 80211prep 0 0K 0 80211preq 0 0K 0 80211dfs 0 0K 0 80211crypto 0 0K 0 80211vap 0 0K 0 iflib 0 0K 0 vlan 0 0K 0 gif 0 0K 0 ifdescr 0 0K 0 zlib 0 0K 0 fadvise 0 0K 0 mpr 0 0K 0 statfs 0 0K 205 export_host 0 0K 0 cl_savebuf 0 0K 2 biobuf 0 0K 0 aios 0 0K 0 lio 0 0K 0 acl 0 0K 0 mfibuf 0 0K 0 mbuf_tag 0 0K 48 accf 0 0K 0 pts 0 0K 0 iov 0 0K 13411 ioctlops 0 0K 92 Witness 0 0K 0 stack 0 0K 0 md_sectors 0 0K 0 sbuf 0 0K 364 md_disk 0 0K 0 compressor 0 0K 0 malodev 0 0K 0 SWAP 0 0K 0 LED 0 0K 0 sysctltmp 0 0K 590 sysctl 0 0K 1 ekcd 0 0K 0 dumper 0 0K 0 rctl 0 0K 0 ix_sriov 0 0K 0 aacraidcam 0 0K 0 ix 0 0K 0 ipsbuf 0 0K 0 iirbuf 0 0K 0 cache 0 0K 0 aacraid_buf 0 0K 0 kcovinfo 0 0K 0 prison_racct 0 0K 0 Fail Points 0 0K 0 sigio 0 0K 1 filedesc_to_leader 0 0K 0 tty console 0 0K 0 aaccam 0 0K 0 aacbuf 0 0K 0 zstd 0 0K 0 nvlist 0 0K 0 SCSI ENC 0 0K 0 SCSI sa 0 0K 0 isofs_node 0 0K 0 isofs_mount 0 0K 0 tr_raid5_data 0 0K 0 tr_raid1e_data 0 0K 0 tr_raid1_data 0 0K 0 tr_raid0_data 0 0K 0 tr_concat_data 0 0K 0 md_sii_data 0 0K 0 md_promise_data 0 0K 0 md_nvidia_data 0 0K 0 md_jmicron_data 0 0K 0 md_intel_data 0 0K 0 md_ddf_data 0 0K 0 raid_data 0 0K 72 geom_flashmap 0 0K 0 newnfsmnt 0 0K 0 newnfsclient_req 0 0K 0 NFSCL layrecall 0 0K 0 NFSCL session 0 0K 0 NFSCL sockreq 0 0K 0 NFSCL devinfo 0 0K 0 NFSCL flayout 0 0K 0 NFSCL layout 0 0K 0 NFSD rollback 0 0K 0 NFSCL diroffdiroff 0 0K 0 NEWdirectio 0 0K 0 NEWNFSnode 0 0K 0 NFSCL lck 0 0K 0 NFSCL lckown 0 0K 0 NFSCL client 0 0K 0 NFSCL deleg 0 0K 0 NFSCL open 0 0K 0 NFSCL owner 0 0K 0 NFS fh 0 0K 0 NFS req 0 0K 0 NFSD usrgroup 0 0K 0 NFSD string 0 0K 0 NFSD V4lock 0 0K 0 NFSD V4state 0 0K 0 NFSD srvcache 0 0K 0 msdosfs_fat 0 0K 0 msdosfs_mount 0 0K 0 msdosfs_node 0 0K 0 DEVFS4 0 0K 0 DEVFS2 0 0K 0 gntdev 0 0K 0 privcmd_dev 0 0K 0 evtchn_dev 0 0K 0 xenstore 0 0K 0 scsi_pass 0 0K 0 ciss_data 0 0K 0 xnb 0 0K 0 xbbd 0 0K 0 xbd 0 0K 0 Balloon 0 0K 0 sysmouse 0 0K 0 vtfont 0 0K 0 ath_hal 0 0K 0 athdev 0 0K 0 ata_pci 0 0K 0 ata_dma 0 0K 0 ata_generic 0 0K 0 amr 0 0K 0 scsi_da 0 0K 69 ata_da 0 0K 0 scsi_ch 0 0K 0 scsi_cd 0 0K 0 USBdev 0 0K 0 USB 0 0K 0 AHCI driver 0 0K 0 agp 0 0K 0 nvme_da 0 0K 0 acpipwr 0 0K 0 twsbuf 0 0K 0 twe_commands 0 0K 0 twa_commands 0 0K 0 tcp_log_dev 0 0K 0 midi buffers 0 0K 0 mixer 0 0K 0 ac97 0 0K 0 hdacc 0 0K 0 hdac 0 0K 0 hdaa 0 0K 0 acpi_perf 0 0K 0 acpicmbat 0 0K 0 SIIS driver 0 0K 0 db> show ktr No such command; use "help" to list available commands db>