login: panic: sx lock still held cpuid = 0 time = 1579458422 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002456e870 vpanic() at vpanic+0x1ce/frame 0xfffffe002456e8e0 panic() at panic+0x43/frame 0xfffffe002456e940 sx_destroy() at sx_destroy+0x63/frame 0xfffffe002456e960 solisten_proto() at solisten_proto+0xde/frame 0xfffffe002456e9c0 tcp6_usr_listen() at tcp6_usr_listen+0x1dc/frame 0xfffffe002456ea30 solisten() at solisten+0x7a/frame 0xfffffe002456ea70 kern_listen() at kern_listen+0x125/frame 0xfffffe002456eab0 amd64_syscall() at amd64_syscall+0x499/frame 0xfffffe002456ebf0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe002456ebf0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x4132ea, rsp = 0x7fffdfffdf38, rbp = 0x2 --- KDB: enter: panic [ thread pid 26244 tid 100791 ] Stopped at kdb_enter+0x67: movq $0,0x1466f66(%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 0x28 ll+0x7 rax 0x12 rcx 0x80 ll+0x5f rdx 0xffffffff81898246 rbx 0 rsp 0xfffffe002456e850 rbp 0xfffffe002456e870 rsi 0x1 rdi 0 r8 0 r9 0xffffffff r10 0 r11 0xfffff8003aaecbd0 r12 0xffffffff82068d90 ddb_dbbe r13 0 r14 0xffffffff81936176 r15 0xffffffff81936176 rip 0xffffffff810af137 kdb_enter+0x67 rflags 0x82 ll+0x61 kdb_enter+0x67: movq $0,0x1466f66(%rip) db> show proc Process 26244 (syz-executor.3) at 0xfffff8003aaeb530: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 791 at 0xfffff80003afc000 ABI: FreeBSD ELF64 arguments: /root/syz-executor.3 reaper: 0xfffff800032fa530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff8003ab8a000 (map 0xfffff8003ab8a000) (map.pmap 0xfffff8003ab8a0c0) (pmap 0xfffff8003ab8a120) threads: 3 100189 RunQ syz-executor.3 100791 Run CPU 0 syz-executor.3 100796 Run CPU 1 syz-executor.3 db> ps pid ppid pgrp uid state wmesg wchan cmd 26246 792 792 0 R (threaded) syz-executor.2 100522 RunQ syz-executor.2 100793 S uwait 0xfffff8003ac38180 syz-executor.2 26245 794 794 0 R (threaded) syz-executor.0 100196 RunQ syz-executor.0 100789 S umtxn 0xfffff80003e06380 syz-executor.0 26244 791 791 0 R (threaded) syz-executor.3 100189 RunQ syz-executor.3 100791 Run CPU 0 syz-executor.3 100796 Run CPU 1 syz-executor.3 26243 795 795 0 R (threaded) syz-executor.1 100350 RunQ syz-executor.1 100790 S uwait 0xfffff80003300d80 syz-executor.1 23847 23830 23847 0 Ss select 0xfffff80003d28cc0 dhclient 23840 1 23840 0 Ss select 0xfffff80003d28d40 dhclient 23830 23818 422 65 S select 0xfffff80003d28f40 dhclient 23818 422 422 0 S wait 0xfffff80003afc530 sh 23811 1 23811 65 Ss select 0xfffff80003d28ec0 dhclient 5189 1 5189 0 Ss select 0xfffff80003cc2840 dhclient 5182 1 5182 0 Ss select 0xfffff80003d28dc0 dhclient 795 789 795 0 Ss nanslp 0xffffffff824feca1 syz-executor.1 794 789 794 0 Rs syz-executor.0 792 789 792 0 Ss nanslp 0xffffffff824feca1 syz-executor.2 791 789 791 0 Ss nanslp 0xffffffff824feca1 syz-executor.3 789 787 787 0 S (threaded) syz-execprog 100083 S uwait 0xfffff80003e08900 syz-execprog 100105 S uwait 0xfffff80003e07d80 syz-execprog 100106 S uwait 0xfffff80003e07e80 syz-execprog 100107 S uwait 0xfffff80003a45900 syz-execprog 100108 S uwait 0xfffff80003e07300 syz-execprog 100109 S uwait 0xfffff80003e07400 syz-execprog 100110 S uwait 0xfffff80003e07500 syz-execprog 100111 S uwait 0xfffff80003e07600 syz-execprog 100112 S uwait 0xfffff80003e07700 syz-execprog 100113 S uwait 0xfffff80003a45c00 syz-execprog 100114 S uwait 0xfffff80003a45d00 syz-execprog 100115 S kqread 0xfffff8000333b800 syz-execprog 787 785 787 0 Ss pause 0xfffff80003de80a8 csh 785 680 785 0 Ss select 0xfffff8003a238d40 sshd 746 1 746 0 Ss+ ttyin 0xfffff800033f7cb0 getty 745 1 745 0 Ss+ ttyin 0xfffff800033f8cb0 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 0xfffff80003abb0b0 getty 739 1 739 0 Ss+ ttyin 0xfffff80003abb4b0 getty 738 1 738 0 Ss+ ttyin 0xfffff80003abb8b0 getty 684 1 684 0 Ss nanslp 0xffffffff824feca0 cron 680 1 680 0 Ss select 0xfffff8003a238e40 sshd 493 1 493 0 Ss select 0xfffff80003d25a40 syslogd 422 1 422 0 Ss wait 0xfffff80003e02a60 devd 421 1 421 65 Ss select 0xfffff80003d25b40 dhclient 336 1 336 0 Ss select 0xfffff8003a239040 dhclient 333 1 333 0 Ss select 0xfffff80003d25bc0 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] 100070 D - 0xffffffff8200a980 [bufspacedaemon-0] 100082 D sdflush 0xfffff80003cec8e8 [/ worker] 18 0 0 0 DL psleep 0xffffffff825f0088 [vmdaemon] 17 0 0 0 DL (threaded) [pagedaemon] 100063 D psleep 0xffffffff8261cfd8 [dom0] 100068 D launds 0xffffffff8261cfe4 [laundry: dom0] 100069 D umarcl 0xffffffff8153ce00 [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 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 0xfffff800034d4400 [virtio_balloon] 100050 D - 0xfffff8000333bb00 [mca taskq] 100054 D - 0xffffffff81cd9b10 [deadlkres] 100057 D - 0xfffff80003b31100 [acpi_task_0] 100058 D - 0xfffff80003b31100 [acpi_task_1] 100059 D - 0xfffff80003b31100 [acpi_task_2] 100061 D - 0xfffff8000333c100 [CAM taskq] db> show all locks Process 26244 (syz-executor.3) thread 0xfffff8003aaec6e0 (100791) exclusive sleep mutex socket (socket) r = 0 (0xfffff80011626000) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:489 exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8003a34fd78) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:481 db> show malloc Type InUse MemUse Requests inodedep 9004 5014K 25396 devbuf 4213 4851K 4241 vtbuf 24 1968K 46 sysctloid 26527 1553K 26591 kobj 331 1324K 487 dirrem 8989 1124K 25322 freefile 8989 1124K 25319 newblk 17 1028K 25749 vfscache 4 1025K 4 pcb 27 537K 50623 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 129 261K 26320 acpica 1674 185K 49750 vnet_data 1 168K 1 filedesc 22 153K 50656 pagedep 15 132K 25330 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 105 105K 122 linker 221 89K 252 bus 978 79K 3330 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 493 62K 493 BPF 30 53K 30 umtx 300 38K 300 kdtrace 178 34K 85120 gtaskqueue 22 34K 22 hostcache 1 32K 1 shm 1 32K 1 DEVFS3 124 31K 134 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 72 24K 74 kbdmux 6 22K 6 vmem 3 19K 4 lltable 46 17K 47 temp 34 17K 2106 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 25359 devstat 4 9K 4 UART 12 9K 12 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 cred 31 8K 307 audit_evclass 231 8K 289 routetbl 58 7K 62 CAM DEV 3 6K 508 kqueue 58 6K 26253 plimit 22 6K 471 vt 11 6K 11 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 UMA 234 4K 234 session 28 4K 49 pgrp 28 4K 49 select 27 4K 27 hhook 13 4K 13 acpisem 22 3K 22 terminal 11 3K 11 lockf 24 3K 49 proc-args 47 3K 631 uidinfo 5 3K 9 sctp_ifa 17 3K 17 local_apic 1 2K 1 io_apic 1 2K 1 mkdir 16 2K 50626 ipsec-saq 2 2K 2 ip6ndp 12 2K 21 Unitno 31 2K 63119 diradd 13 2K 25360 CAM XPT 22 2K 541 in_multi 6 2K 7 acpidev 20 2K 20 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 vnodemarker 2 1K 79 NFSD session 1 1K 1 CAM periph 4 1K 270 freework 4 1K 25320 newdirblk 12 1K 25313 freeblks 3 1K 25319 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 DEVFSP 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 15 1K 101383 encap_export_host 8 1K 8 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 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 soname 4 1K 5817 nexusdev 5 1K 5 entropy 2 1K 45 tcpfunc 1 1K 1 sctp_vrf 1 1K 1 vnet 1 1K 1 acpiintr 1 1K 1 pmc 1 1K 1 filecaps 3 1K 105 cpus 2 1K 2 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 p1003.1b 1 1K 1 CAM CCB 0 0K 2206 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 12178 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 10 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 indirdep 0 0K 10 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 6 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 7 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 7 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 25519 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 115 accf 0 0K 0 pts 0 0K 0 iov 0 0K 65301 ioctlops 0 0K 111 Witness 0 0K 0 stack 0 0K 0 md_sectors 0 0K 0 sbuf 0 0K 288 md_disk 0 0K 0 compressor 0 0K 0 malodev 0 0K 0 SWAP 0 0K 0 LED 0 0K 0 sysctltmp 0 0K 627 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