panic: sx lock still held cpuid = 0 time = 1575817674 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002432f870 vpanic() at vpanic+0x1c7/frame 0xfffffe002432f8e0 panic() at panic+0x43/frame 0xfffffe002432f940 sx_destroy() at sx_destroy+0x63/frame 0xfffffe002432f960 solisten_proto() at solisten_proto+0xd2/frame 0xfffffe002432f9c0 tcp6_usr_listen() at tcp6_usr_listen+0x1dc/frame 0xfffffe002432fa30 solisten() at solisten+0x7a/frame 0xfffffe002432fa70 kern_listen() at kern_listen+0x125/frame 0xfffffe002432fab0 ia32_syscall() at ia32_syscall+0x48c/frame 0xfffffe002432fbf0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x8142e6d KDB: enter: panic [ thread pid 1436 tid 100825 ] Stopped at kdb_enter+0x67: movq $0,0x1467d46(%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 0xfffffe0025000000 rdx 0x3ffff rbx 0 rsp 0xfffffe002432f850 rbp 0xfffffe002432f870 rsi 0x40001 rdi 0xffffffff810b6cd1 vprintf+0xe1 r8 0 r9 0xffffffff r10 0x4e7cf8a5 r11 0x34063058 r12 0xffffffff82068d70 ddb_dbbe r13 0 r14 0xffffffff81929c2b r15 0xffffffff81929c2b rip 0xffffffff810abf57 kdb_enter+0x67 rflags 0x200082 kernphys+0x82 kdb_enter+0x67: movq $0,0x1467d46(%rip) db> show proc Process 1436 (syz-executor.0) at 0xfffff80012fb8000: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 771 at 0xfffff80003e9ca60 ABI: FreeBSD ELF32 arguments: /root/syz-executor.0 reaper: 0xfffff800032c0530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff8000c315000 (map 0xfffff8000c315000) (map.pmap 0xfffff8000c3150c0) (pmap 0xfffff8000c315120) threads: 4 100747 RunQ syz-executor.0 100814 S sbwait 0xfffff80003e459e4 syz-executor.0 100818 Run CPU 1 syz-executor.0 100825 Run CPU 0 syz-executor.0 db> ps pid ppid pgrp uid state wmesg wchan cmd 1436 771 771 0 R (threaded) syz-executor.0 100747 RunQ syz-executor.0 100814 S sbwait 0xfffff80003e459e4 syz-executor.0 100818 Run CPU 1 syz-executor.0 100825 Run CPU 0 syz-executor.0 805 766 805 0 Ss piperd 0xfffff80012445000 syz-executor.3 803 766 803 0 Ss piperd 0xfffff80003cf8be0 syz-executor.2 800 794 800 0 Ss select 0xfffff800121ca0c0 dhclient 797 1 797 0 Ss select 0xfffff800121ca140 dhclient 794 787 422 65 S select 0xfffff800121c7f40 dhclient 787 422 422 0 S wait 0xfffff80003ea3530 sh 772 766 772 0 Ss piperd 0xfffff80003cf68e8 syz-executor.1 771 766 771 0 Ss nanslp 0xffffffff824fc8a0 syz-executor.0 766 764 764 0 S (threaded) syz-fuzzer 100085 S uwait 0xfffff80003799000 syz-fuzzer 100102 S uwait 0xfffff800032c6c80 syz-fuzzer 100103 S uwait 0xfffff800039c9480 syz-fuzzer 100104 S uwait 0xfffff800032c6280 syz-fuzzer 100105 S uwait 0xfffff800032c6380 syz-fuzzer 100106 S uwait 0xfffff800039c9280 syz-fuzzer 100107 S kqread 0xfffff80003aabc00 syz-fuzzer 100108 S uwait 0xfffff80003799900 syz-fuzzer 100109 S uwait 0xfffff80003798100 syz-fuzzer 100110 S uwait 0xfffff800032c6480 syz-fuzzer 764 762 764 0 Ss pause 0xfffff8001249a0a8 csh 762 680 762 0 Ss select 0xfffff80003c132c0 sshd 746 1 746 0 Ss+ ttyin 0xfffff8000378a0b0 getty 745 1 745 0 Ss+ ttyin 0xfffff80003abc8b0 getty 744 1 744 0 Ss+ ttyin 0xfffff80003abd0b0 getty 743 1 743 0 Ss+ ttyin 0xfffff80003abd8b0 getty 742 1 742 0 Ss+ ttyin 0xfffff80003abe0b0 getty 741 1 741 0 Ss+ ttyin 0xfffff800033228b0 getty 740 1 740 0 Ss+ ttyin 0xfffff800033810b0 getty 739 1 739 0 Ss+ ttyin 0xfffff800033818b0 getty 738 1 738 0 Ss+ ttyin 0xfffff800033820b0 getty 684 1 684 0 Ss nanslp 0xffffffff824fc8a1 cron 680 1 680 0 Ss select 0xfffff80003c13240 sshd 493 1 493 0 Ss select 0xfffff800121ca640 syslogd 422 1 422 0 Ss wait 0xfffff80003eb9530 devd 421 1 421 65 Ss select 0xfffff80003c8e9c0 dhclient 336 1 336 0 Ss select 0xfffff80003c13340 dhclient 333 1 333 0 Ss select 0xfffff800121cab40 dhclient 21 0 0 0 DL syncer 0xffffffff825d2d60 [syncer] 20 0 0 0 DL vlruwt 0xfffff80003a6e000 [vnlru] 19 0 0 0 DL (threaded) [bufdaemon] 100063 D qsleep 0xffffffff825d2218 [bufdaemon] 100068 D - 0xffffffff8200a980 [bufspacedaemon-0] 100078 D sdflush 0xfffff80003c670e8 [/ worker] 18 0 0 0 DL psleep 0xffffffff825edc48 [vmdaemon] 17 0 0 0 DL (threaded) [pagedaemon] 100061 D psleep 0xffffffff8261a7d8 [dom0] 100066 D launds 0xffffffff8261a7e4 [laundry: dom0] 100067 D umarcl 0xffffffff81533e00 [uma] 16 0 0 0 DL - 0xffffffff82358518 [rand_harvestq] 15 0 0 0 DL waiting 0xffffffff8265fda0 [sctp_iterator] 9 0 0 0 DL - 0xffffffff825d1c1c [soaiod4] 8 0 0 0 DL - 0xffffffff825d1c1c [soaiod3] 7 0 0 0 DL - 0xffffffff825d1c1c [soaiod2] 6 0 0 0 DL - 0xffffffff825d1c1c [soaiod1] 5 0 0 0 DL (threaded) [cam] 100031 D - 0xffffffff822338c0 [doneq0] 100060 D - 0xffffffff82233788 [scanner] 4 0 0 0 DL crypto_ 0xfffff800032fb790 [crypto returns 1] 3 0 0 0 DL crypto_ 0xfffff800032fb730 [crypto returns 0] 2 0 0 0 DL crypto_ 0xffffffff825e7cf8 [crypto] 14 0 0 0 DL seqstat 0xfffff8000331f888 [sequencer 00] 13 0 0 0 DL (threaded) [geom] 100022 D - 0xffffffff82618e08 [g_event] 100023 D - 0xffffffff82618e18 [g_up] 100024 D - 0xffffffff82618e10 [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 [swi4: clock (0)] 100018 I [swi4: clock (1)] 100019 I [swi3: vm] 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 [irq1: atkbd0] 100046 I [irq12: psm0] 100047 I [swi0: uart uart++] 11 0 0 0 RL (threaded) [idle] 100003 CanRun [idle: cpu0] 100004 CanRun [idle: cpu1] 1 0 1 0 SLs wait 0xfffff800032c0530 [init] 10 0 0 0 DL audit_w 0xffffffff82660a30 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff826077b8 [swapper] 100005 D - 0xfffff800032fc000 [thread taskq] 100007 D - 0xfffff800032ece00 [config_0] 100008 D - 0xfffff800032fbd00 [kqueue_ctx taskq] 100009 D - 0xfffff800032fbc00 [aiod_kick taskq] 100012 D - 0xfffff800032ecd00 [if_config_tqg_0] 100013 D - 0xfffff800032ecc00 [softirq_0] 100014 D - 0xfffff800032ecb00 [softirq_1] 100015 D - 0xfffff800032eca00 [if_io_tqg_0] 100016 D - 0xfffff800032ec900 [if_io_tqg_1] 100021 D - 0xfffff800032fb900 [firmware taskq] 100026 D - 0xfffff800032fb800 [crypto_0] 100027 D - 0xfffff800032fb800 [crypto_1] 100041 D - 0xfffff800032fb500 [vtnet0 rxq 0] 100042 D - 0xfffff800032fb400 [vtnet0 txq 0] 100043 D - 0xfffff800032fb300 [vtnet0 rxq 1] 100044 D - 0xfffff800032fb200 [vtnet0 txq 1] 100048 D - 0xfffff800032fb100 [mca taskq] 100051 D - 0xffffffff824fb620 [deadlkres] 100056 D - 0xfffff80003aac100 [acpi_task_0] 100057 D - 0xfffff80003aac100 [acpi_task_1] 100058 D - 0xfffff80003aac100 [acpi_task_2] 100059 D - 0xfffff800032fb600 [CAM taskq] db> show all locks Process 1436 (syz-executor.0) thread 0xfffff80033105000 (100814) exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffff80003e45988) locked @ /syzkaller/managers/i386/kernel/sys/kern/uipc_sockbuf.c:393 Process 1436 (syz-executor.0) thread 0xfffff8000c3266e0 (100818) exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffff80003e48600) locked @ /syzkaller/managers/i386/kernel/sys/kern/uipc_sockbuf.c:393 Process 1436 (syz-executor.0) thread 0xfffff80012b1f6e0 (100825) exclusive sleep mutex socket (socket) r = 0 (0xfffff80003e48388) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_usrreq.c:489 exclusive rw tcpinp (tcpinp) r = 0 (0xfffff800125007c0) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_usrreq.c:481 db> show malloc Type InUse MemUse Requests devbuf 4206 4793K 4234 vtbuf 24 1968K 46 callout 3 1672K 3 kobj 333 1332K 489 sysctloid 22924 1325K 22986 newblk 76 1043K 2190 vfscache 4 1025K 4 pcb 26 537K 270 inodedep 34 529K 772 ufs_quota 1 512K 1 vfs_hash 1 512K 1 intr 4 388K 4 subproc 123 237K 1515 acpica 1674 185K 49400 vnet_data 1 168K 1 pagedep 17 132K 659 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 105 105K 122 filedesc 15 101K 1303 linker 221 89K 252 bus 983 79K 3155 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 495 62K 495 umtx 316 40K 316 BPF 22 36K 22 gtaskqueue 22 34K 22 hostcache 1 32K 1 shm 1 32K 4 DEVFS3 124 31K 134 kdtrace 160 31K 3639 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 73 25K 73 kbdmux 6 22K 6 vmem 3 19K 4 lltable 48 18K 51 temp 34 17K 1852 ufs_mount 3 17K 4 proc 3 17K 3 tty 16 16K 16 tidhash 1 16K 1 ithread 87 15K 87 ether_multi 172 14K 182 KTRACE 100 13K 100 ifnet 7 13K 7 kenv 95 12K 99 in6_multi 89 11K 89 eventhandler 122 11K 122 pfs_nodes 20 10K 20 GEOM 60 10K 487 rman 80 10K 421 bmsafemap 3 9K 770 devstat 4 9K 4 UART 12 9K 12 freework 33 9K 1140 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 audit_evclass 231 8K 289 cred 28 7K 217 routetbl 58 7K 62 CAM DEV 3 6K 508 vt 11 6K 11 kqueue 52 6K 1446 plimit 21 6K 364 sglist 5 6K 5 CAM queue 5 6K 1522 select 38 5K 38 ufs_dirhash 24 5K 24 DEVFSP 72 5K 76 taskqueue 42 5K 42 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 kcovinfo 64 4K 68 UMA 233 4K 233 diradd 26 4K 736 hhook 13 4K 13 session 25 4K 36 pgrp 25 4K 36 terminal 11 3K 11 acpisem 21 3K 21 proc-args 44 3K 544 uidinfo 4 3K 6 mkdir 17 3K 1290 sctp_ifa 17 3K 17 lockf 20 3K 69 local_apic 1 2K 1 io_apic 1 2K 1 freeblks 8 2K 719 indirdep 8 2K 529 ipsec-saq 2 2K 2 sctp_timw 8 2K 8 ip6ndp 12 2K 21 CAM XPT 22 2K 541 in_multi 6 2K 8 Unitno 25 2K 45 acpidev 20 2K 20 freefile 10 2K 700 crypto 2 2K 2 msi 9 2K 9 tun 7 2K 7 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 NFSD session 1 1K 1 dirrem 7 1K 702 CAM periph 4 1K 270 newdirblk 13 1K 645 mld 6 1K 6 sctp_ifn 6 1K 6 igmp 6 1K 6 toponodes 6 1K 6 isadev 6 1K 6 mount 16 1K 86 pci_link 10 1K 10 CAM SIM 2 1K 2 softdep 1 1K 1 chacha20random 1 1K 1 epoch 4 1K 4 cdev 2 1K 2 encap_export_host 8 1K 8 pfil 3 1K 3 inpcbpolicy 11 1K 405 osd 3 1K 9 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 soname 6 1K 5821 CAM path 4 1K 1030 apmdev 1 1K 1 atkbddev 2 1K 2 pmchooks 1 1K 1 prison 4 1K 4 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 nexusdev 5 1K 5 entropy 2 1K 37 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 filecaps 2 1K 72 p1003.1b 1 1K 1 CAM CCB 0 0K 4199 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 898 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 6 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 6 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 48 sctp_iter 0 0K 10 sctp_mvrf 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 75 sctp_atky 0 0K 83 sctp_atcl 0 0K 75 sctp_a_it 0 0K 10 sctp_aadr 0 0K 0 sctp_stro 0 0K 8 sctp_stri 0 0K 0 sctp_map 0 0K 16 newreno data 0 0K 0 ip_msource 0 0K 0 ip_moptions 0 0K 5 in_mfilter 0 0K 3 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 vnodemarker 0 0K 20 mpr 0 0K 0 statfs 0 0K 815 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 116 accf 0 0K 0 pts 0 0K 0 iov 0 0K 13823 ioctlops 0 0K 102 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 575 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 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