login: panic: sx_xlock() of destroyed sx @ /syzkaller/managers/i386/kernel/sys/kern/uipc_sockbuf.c:393 cpuid = 1 time = 1579286476 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00245916f0 vpanic() at vpanic+0x1ce/frame 0xfffffe0024591760 panic() at panic+0x43/frame 0xfffffe00245917c0 _sx_xlock() at _sx_xlock+0x1ca/frame 0xfffffe0024591810 sosend_generic() at sosend_generic+0x197/frame 0xfffffe00245918d0 sosend() at sosend+0xc6/frame 0xfffffe0024591940 kern_sendit() at kern_sendit+0x32d/frame 0xfffffe00245919f0 sendit() at sendit+0x226/frame 0xfffffe0024591a50 sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0024591ab0 ia32_syscall() at ia32_syscall+0x48c/frame 0xfffffe0024591bf0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x814304e KDB: enter: panic [ thread pid 2246 tid 100779 ] 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 0xfffffe00245916d0 rbp 0xfffffe00245916f0 rsi 0x1 rdi 0 r8 0 r9 0xffffffff r10 0x1aa000000 r11 0xfffff8003ab864f0 r12 0xffffffff82068d90 ddb_dbbe r13 0 r14 0xffffffff819350cb r15 0xffffffff819350cb rip 0xffffffff810aed27 kdb_enter+0x67 rflags 0x200086 kernphys+0x86 kdb_enter+0x67: movq $0,0x1467376(%rip) db> show proc Process 2246 (syz-executor.3) at 0xfffff8003aad0530: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 776 at 0xfffff8003aaa2000 ABI: FreeBSD ELF32 arguments: /root/syz-executor.3 reaper: 0xfffff800032fa530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff8003ac14000 (map 0xfffff8003ac14000) (map.pmap 0xfffff8003ac140c0) (pmap 0xfffff8003ac14120) threads: 3 100249 RunQ syz-executor.3 100779 Run CPU 1 syz-executor.3 100783 Run CPU 0 syz-executor.3 db> ps pid ppid pgrp uid state wmesg wchan cmd 2248 777 777 0 R syz-executor.2 2247 773 773 0 R (threaded) syz-executor.1 100828 RunQ syz-executor.1 100782 S uwait 0xfffff8003ab6eb80 syz-executor.1 2246 776 776 0 R (threaded) syz-executor.3 100249 RunQ syz-executor.3 100779 Run CPU 1 syz-executor.3 100783 Run CPU 0 syz-executor.3 919 1 919 0 Ss select 0xfffff80003cc4040 rtsol 918 1 918 0 Ss select 0xfffff80003cc40c0 rtsol 915 1 915 0 Ss select 0xfffff80003cc4140 rtsol 910 795 422 0 S kqread 0xfffff8000333b400 rtsol 795 785 422 0 S wait 0xfffff8003ab3ba60 sh 785 422 422 0 S wait 0xfffff8003aaaaa60 sh 777 771 777 0 Ss nanslp 0xffffffff824feca0 syz-executor.2 776 771 776 0 Ss nanslp 0xffffffff824feca0 syz-executor.3 775 771 775 0 Rs syz-executor.0 773 771 773 0 Rs syz-executor.1 771 769 769 0 S (threaded) syz-execprog 100089 S uwait 0xfffff80003d41000 syz-execprog 100096 S uwait 0xfffff80003a48c80 syz-execprog 100097 S uwait 0xfffff80003a48d80 syz-execprog 100098 S uwait 0xfffff80003d41600 syz-execprog 100099 S uwait 0xfffff80003d42b00 syz-execprog 100100 S uwait 0xfffff80003a48380 syz-execprog 100101 S uwait 0xfffff80003d42d80 syz-execprog 100102 S uwait 0xfffff80003d43c80 syz-execprog 100103 S uwait 0xfffff80003d43d80 syz-execprog 100108 S kqread 0xfffff8000333b700 syz-execprog 100109 S uwait 0xfffff80003a49e00 syz-execprog 769 767 769 0 Ss pause 0xfffff80003dacb08 csh 767 680 767 0 Ss select 0xfffff80003f4ba40 sshd 746 1 746 0 Ss+ ttyin 0xfffff800033f6cb0 getty 745 1 745 0 Ss+ ttyin 0xfffff800033f9cb0 getty 744 1 744 0 Ss+ ttyin 0xfffff80003aba0b0 getty 743 1 743 0 Ss+ ttyin 0xfffff80003aba4b0 getty 742 1 742 0 Ss+ ttyin 0xfffff80003aba8b0 getty 741 1 741 0 Ss+ ttyin 0xfffff80003abacb0 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 0xfffff80003d808e8 logger 735 734 22 0 S+ nanslp 0xffffffff824feca0 sleep 734 1 22 0 S+ wait 0xfffff8003a48a530 sh 684 1 684 0 Ss nanslp 0xffffffff824feca0 cron 680 1 680 0 Ss select 0xfffff80003f31540 sshd 493 1 493 0 Ss select 0xfffff80003f315c0 syslogd 422 1 422 0 Ss wait 0xfffff80003d9b000 devd 421 1 421 65 Ss select 0xfffff80003f31640 dhclient 336 1 336 0 Ss select 0xfffff80003cc4f40 dhclient 333 1 333 0 Ss select 0xfffff80003f314c0 dhclient 21 0 0 0 DL syncer 0xffffffff825d5118 [syncer] 20 0 0 0 DL vlruwt 0xfffff80003b03000 [vnlru] 19 0 0 0 DL (threaded) [bufdaemon] 100065 D qsleep 0xffffffff825d4618 [bufdaemon] 100066 D - 0xffffffff8200a980 [bufspacedaemon-0] 100082 D sdflush 0xfffff80003cf48e8 [/ 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 0xfffff80003363888 [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 CanRun [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] 100055 D - 0xffffffff81cd8ac1 [deadlkres] 100057 D - 0xfffff80003b30100 [acpi_task_0] 100058 D - 0xfffff80003b30100 [acpi_task_1] 100059 D - 0xfffff80003b30100 [acpi_task_2] 100061 D - 0xfffff8000333c100 [CAM taskq] db> show all locks Process 2246 (syz-executor.3) thread 0xfffff8003abd7000 (100783) exclusive sleep mutex eventhandler (eventhandler) r = 0 (0xffffffff82515260) locked @ /syzkaller/managers/i386/kernel/sys/kern/subr_eventhandler.c:271 exclusive sleep mutex socket (socket) r = 0 (0xfffff80003e6e000) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_usrreq.c:489 exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003a5973f0) locked @ /syzkaller/managers/i386/kernel/sys/netinet/tcp_usrreq.c:481 db> show malloc Type InUse MemUse Requests devbuf 4213 4851K 4238 vtbuf 24 1968K 46 sysctloid 26527 1553K 26591 kobj 331 1324K 487 inodedep 1416 1220K 1472 newblk 376 1118K 1811 vfscache 4 1025K 4 pcb 29 537K 2851 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 139 269K 2331 acpica 1674 185K 49750 dirrem 1384 173K 1408 freefile 1382 173K 1402 vnet_data 1 168K 1 pagedep 20 133K 1410 filedesc 19 133K 2829 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 105 105K 122 linker 221 89K 252 bus 990 79K 3330 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 493 62K 493 umtx 312 39K 312 gtaskqueue 22 34K 22 kdtrace 177 34K 6237 hostcache 1 32K 1 shm 1 32K 1 DEVFS3 124 31K 134 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 70 23K 72 kbdmux 6 22K 6 vmem 3 19K 4 BPF 14 19K 14 lltable 48 18K 49 temp 34 17K 1829 ufs_mount 3 17K 4 proc 3 17K 3 tty 16 16K 16 tidhash 1 16K 1 ithread 89 15K 89 ether_multi 172 14K 177 bus-sc 30 14K 1394 KTRACE 100 13K 100 ifnet 7 13K 7 kenv 95 12K 99 eventhandler 123 11K 123 in6_multi 89 11K 89 pfs_nodes 20 10K 20 GEOM 60 10K 487 rman 82 10K 423 bmsafemap 3 9K 1442 devstat 4 9K 4 kqueue 61 9K 2255 UART 12 9K 12 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 audit_evclass 231 8K 289 cred 28 7K 235 routetbl 57 7K 61 CAM DEV 3 6K 508 vt 11 6K 11 plimit 21 6K 350 sglist 5 6K 5 CAM queue 5 6K 1522 ufs_dirhash 24 5K 24 taskqueue 42 5K 42 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 diradd 31 4K 1440 UMA 234 4K 234 mkdir 27 4K 2800 session 27 4K 38 pgrp 27 4K 38 hhook 13 4K 13 acpisem 22 3K 22 terminal 11 3K 11 proc-args 49 3K 546 indirdep 10 3K 10 uidinfo 4 3K 4 sctp_ifa 17 3K 17 select 17 3K 17 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 ip6ndp 12 2K 21 Unitno 32 2K 1351 CAM XPT 22 2K 541 lockf 15 2K 22 in_multi 6 2K 7 acpidev 20 2K 20 crypto 2 2K 2 msi 9 2K 9 tun 7 2K 7 newdirblk 16 1K 1400 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 vnodemarker 2 1K 10 NFSD session 1 1K 1 CAM periph 4 1K 270 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 pfil 4 1K 4 chacha20random 1 1K 1 epoch 4 1K 4 cdev 2 1K 2 inpcbpolicy 14 1K 2946 encap_export_host 8 1K 8 DEVFSP 6 1K 6 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 5 1K 8513 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 filecaps 4 1K 78 nexusdev 5 1K 5 entropy 2 1K 41 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 freework 1 1K 1406 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 p1003.1b 1 1K 1 CAM CCB 0 0K 1842 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 14 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 3 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 freeblks 0 0K 1405 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 4 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 6 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 6 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 1581 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 110 accf 0 0K 0 pts 0 0K 0 iov 0 0K 16127 ioctlops 0 0K 98 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 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>