panic: pipe_destroy_write_buffer: pipe map for 0xfffff80036c215f0 contains residual data cpuid = 0 time = 1572382380 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002437a810 vpanic() at vpanic+0x1c7/frame 0xfffffe002437a880 panic() at panic+0x43/frame 0xfffffe002437a8e0 pipe_write() at pipe_write+0x1fd1/frame 0xfffffe002437a9b0 dofilewrite() at dofilewrite+0xb0/frame 0xfffffe002437aa00 kern_writev() at kern_writev+0x63/frame 0xfffffe002437aa40 sys_write() at sys_write+0xd1/frame 0xfffffe002437aab0 ia32_syscall() at ia32_syscall+0x466/frame 0xfffffe002437abf0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x8142097 KDB: enter: panic [ thread pid 19031 tid 100351 ] Stopped at kdb_enter+0x67: movq $0,0x14671d6(%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 0xfffffe0024800000 rdx 0x3ffff rbx 0 rsp 0xfffffe002437a7f0 rbp 0xfffffe002437a810 rsi 0x40001 rdi 0xffffffff810b4491 vprintf+0xe1 r8 0 r9 0xffffffff r10 0 r11 0xfffff80036d664f0 r12 0xffffffff82068cf0 ddb_dbbe r13 0 r14 0xffffffff81911cf7 r15 0xffffffff81911cf7 rip 0xffffffff810a9717 kdb_enter+0x67 rflags 0x200086 kernphys+0x86 kdb_enter+0x67: movq $0,0x14671d6(%rip) db> show proc Process 19031 (syz-executor.0) at 0xfffff800032a4000: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 761 at 0xfffff80036229530 ABI: FreeBSD ELF32 arguments: /root/syz-executor.0 reaper: 0xfffff800031ed530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff80036ea1000 (map 0xfffff80036ea1000) (map.pmap 0xfffff80036ea10d0) (pmap 0xfffff80036ea1130) threads: 3 101071 s syz-executor.0 100351 Run CPU 0 syz-executor.0 100362 D pipecl 0xfffff80036c215f0 syz-executor.0 db> ps pid ppid pgrp uid state wmesg wchan cmd 19031 761 761 0 T (threaded) syz-executor.0 101071 s syz-executor.0 100351 Run CPU 0 syz-executor.0 100362 D pipecl 0xfffff80036c215f0 syz-executor.0 19029 762 762 0 S (threaded) syz-executor.1 101066 S nanslp 0xffffffff824f94e1 syz-executor.1 100360 S nanslp 0xffffffff824f94e0 syz-executor.1 100384 S uwait 0xfffff80003c8b900 syz-executor.1 19028 776 776 0 S (threaded) syz-executor.2 100096 S nanslp 0xffffffff824f94e0 syz-executor.2 100359 S sbwait 0xfffff80003d4455c syz-executor.2 100382 S uwait 0xfffff80036dfa180 syz-executor.2 19027 781 781 0 S (threaded) syz-executor.3 100248 S nanslp 0xffffffff824f94e0 syz-executor.3 100348 S nanslp 0xffffffff824f94e0 syz-executor.3 100371 S uwait 0xfffff800613b9200 syz-executor.3 3272 1 3272 65 Ss select 0xfffff800034b0540 dhclient 2658 1 2658 0 Ss select 0xfffff800031e77c0 dhclient 2655 1 2655 0 Ss select 0xfffff800031e71c0 dhclient 2634 1 2634 65 Ss select 0xfffff800031e70c0 dhclient 2041 1 2041 0 Ss select 0xfffff800031e7440 dhclient 2037 1 2037 0 Ss select 0xfffff800034b01c0 dhclient 2012 1 2012 65 Ss select 0xfffff8000348de40 dhclient 1406 1 1406 0 Ss select 0xfffff800034afcc0 dhclient 1402 1 1402 0 Ss select 0xfffff8000348df40 dhclient 1383 1 1383 65 Ss select 0xfffff800031e7bc0 dhclient 795 1 795 0 Ss select 0xfffff800034b05c0 dhclient 792 1 792 0 Ss select 0xfffff8000348ddc0 dhclient 781 754 781 0 Ss nanslp 0xffffffff824f94e0 syz-executor.3 776 754 776 0 Ss nanslp 0xffffffff824f94e0 syz-executor.2 762 754 762 0 Ss nanslp 0xffffffff824f94e0 syz-executor.1 761 754 761 0 Ss nanslp 0xffffffff824f94e0 syz-executor.0 754 752 752 0 S (threaded) syz-fuzzer 100077 S uwait 0xfffff800030bf600 syz-fuzzer 100103 S uwait 0xfffff80003c89a80 syz-fuzzer 100104 S uwait 0xfffff80003c89080 syz-fuzzer 100105 S kqread 0xfffff800031c9900 syz-fuzzer 100106 S uwait 0xfffff80003c89280 syz-fuzzer 100107 S uwait 0xfffff80003c89380 syz-fuzzer 100108 S uwait 0xfffff80003c89580 syz-fuzzer 100109 S uwait 0xfffff80003c88b00 syz-fuzzer 100110 S uwait 0xfffff80003936000 syz-fuzzer 100111 S uwait 0xfffff80003c88c00 syz-fuzzer 752 750 752 0 Ss pause 0xfffff80003c6d5d8 csh 750 668 750 0 Ss select 0xfffff800031e7e40 sshd 734 1 734 0 Ss+ ttyin 0xfffff80003316cb0 getty 733 1 733 0 Ss+ ttyin 0xfffff800039d38b0 getty 732 1 732 0 Ss+ ttyin 0xfffff800039d3cb0 getty 731 1 731 0 Ss+ ttyin 0xfffff800039d40b0 getty 730 1 730 0 Ss+ ttyin 0xfffff800039d44b0 getty 729 1 729 0 Ss+ ttyin 0xfffff800039d48b0 getty 728 1 728 0 Ss+ ttyin 0xfffff800039d4cb0 getty 727 1 727 0 Ss+ ttyin 0xfffff800039d50b0 getty 726 1 726 0 Ss+ ttyin 0xfffff800039d54b0 getty 672 1 672 0 Ss nanslp 0xffffffff824f94e1 cron 668 1 668 0 Ss select 0xfffff800031e8840 sshd 481 1 481 0 Ss select 0xfffff800031e88c0 syslogd 410 1 410 0 Ss select 0xfffff800031e8540 devd 409 1 409 65 Ss select 0xfffff80003492340 dhclient 324 1 324 0 Ss select 0xfffff800031e87c0 dhclient 321 1 321 0 Ss select 0xfffff800031e86c0 dhclient 21 0 0 0 DL vlruwt 0xfffff80003a10a60 [vnlru] 20 0 0 0 DL syncer 0xffffffff825cf9b0 [syncer] 19 0 0 0 DL (threaded) [bufdaemon] 100063 D qsleep 0xffffffff825cee58 [bufdaemon] 100064 D - 0xffffffff8200a900 [bufspacedaemon-0] 100078 D sdflush 0xfffff800030850e8 [/ worker] 18 0 0 0 DL psleep 0xffffffff825ea308 [vmdaemon] 17 0 0 0 DL (threaded) [pagedaemon] 100061 D psleep 0xffffffff82616098 [dom0] 100067 D launds 0xffffffff826160a4 [laundry: dom0] 100068 D umarcl 0xffffffff8152b0b0 [uma] 16 0 0 0 DL - 0xffffffff82355120 [rand_harvestq] 15 0 0 0 DL waiting 0xffffffff8265b670 [sctp_iterator] 9 0 0 0 DL - 0xffffffff825ce85c [soaiod4] 8 0 0 0 DL - 0xffffffff825ce85c [soaiod3] 7 0 0 0 DL - 0xffffffff825ce85c [soaiod2] 6 0 0 0 DL - 0xffffffff825ce85c [soaiod1] 5 0 0 0 DL (threaded) [cam] 100031 D - 0xffffffff822304c0 [doneq0] 100060 D - 0xffffffff82230388 [scanner] 4 0 0 0 DL crypto_ 0xfffff80003320090 [crypto returns 1] 3 0 0 0 DL crypto_ 0xfffff80003320030 [crypto returns 0] 2 0 0 0 DL crypto_ 0xffffffff825e4948 [crypto] 14 0 0 0 DL seqstat 0xfffff80003286c88 [sequencer 00] 13 0 0 0 DL (threaded) [geom] 100022 D - 0xffffffff82614690 [g_event] 100023 D - 0xffffffff826146a0 [g_up] 100024 D - 0xffffffff82614698 [g_down] 12 0 0 0 WL (threaded) [intr] 100005 I [swi6: Giant taskq] 100007 I [swi5: fast taskq] 100011 I [swi6: task queue] 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 Run CPU 1 [idle: cpu1] 1 0 1 0 SLs wait 0xfffff800031ed530 [init] 10 0 0 0 DL audit_w 0xffffffff8265c300 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff82603e58 [swapper] 100006 D - 0xfffff800031d7400 [thread taskq] 100008 D - 0xfffff800031e2600 [config_0] 100009 D - 0xfffff800031d7100 [kqueue_ctx taskq] 100010 D - 0xfffff800031d7000 [aiod_kick taskq] 100012 D - 0xfffff800031e2100 [if_config_tqg_0] 100013 D - 0xfffff800031e1e00 [softirq_0] 100014 D - 0xfffff800031e1c00 [softirq_1] 100015 D - 0xfffff800031e1a00 [if_io_tqg_0] 100016 D - 0xfffff800031e1800 [if_io_tqg_1] 100021 D - 0xfffff80003247c00 [firmware taskq] 100026 D - 0xfffff80003247b00 [crypto_0] 100027 D - 0xfffff80003247b00 [crypto_1] 100041 D - 0xfffff80003247500 [vtnet0 rxq 0] 100042 D - 0xfffff80003247400 [vtnet0 txq 0] 100043 D - 0xfffff80003247300 [vtnet0 rxq 1] 100044 D - 0xfffff80003247200 [vtnet0 txq 1] 100048 D - 0xfffff80003246a00 [mca taskq] 100049 D - 0xffffffff824f8261 [deadlkres] 100056 D - 0xfffff80003246900 [acpi_task_0] 100057 D - 0xfffff80003246900 [acpi_task_1] 100058 D - 0xfffff80003246900 [acpi_task_2] 100059 D - 0xfffff80003247a00 [CAM taskq] db> show all locks Process 19031 (syz-executor.0) thread 0xfffff800613cd000 (100351) exclusive sleep mutex pipe mutex (pipe mutex) r = 0 (0xfffff80036c218c0) locked @ /syzkaller/managers/i386/kernel/sys/kern/sys_pipe.c:836 Process 19028 (syz-executor.2) thread 0xfffff80036b9a6e0 (100359) exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffff80003d44500) locked @ /syzkaller/managers/i386/kernel/sys/kern/uipc_sockbuf.c:393 db> show malloc Type InUse MemUse Requests devbuf 4200 4764K 4227 vtbuf 24 1968K 46 callout 3 1672K 3 kobj 331 1324K 488 newblk 9 1026K 122968 vfscache 4 1025K 4 pcb 28 539K 7144 inodedep 32 528K 27487 ufs_quota 1 512K 1 vfs_hash 1 512K 1 intr 4 388K 4 subproc 143 285K 19114 acpica 1674 185K 48775 vnet_data 1 168K 1 filedesc 21 149K 36203 pagedep 9 130K 18147 tfo_ccache 1 128K 1 sysctloid 2038 107K 2098 sem 4 106K 4 DEVFS1 105 105K 122 BPF 46 88K 46 bus 946 76K 2947 linker 204 76K 230 UMAHash 3 73K 6 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 492 62K 493 umtx 332 42K 332 kdtrace 187 36K 77593 gtaskqueue 22 34K 22 hostcache 1 32K 1 shm 1 32K 51 DEVFS3 124 31K 134 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 76 26K 76 kbdmux 6 22K 6 vmem 3 20K 5 temp 34 17K 3268 ufs_mount 3 17K 4 proc 3 17K 3 lltable 44 16K 209 tty 16 16K 16 tidhash 1 16K 1 ether_multi 179 15K 184 ithread 87 15K 87 cred 56 14K 567 bus-sc 26 13K 1146 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 489 rman 77 9K 418 select 71 9K 71 bmsafemap 2 9K 25378 devstat 4 9K 4 UART 12 9K 12 rpc 2 8K 2 sctp_timw 32 8K 32 shmfd 1 8K 1 pfs_vncache 1 8K 1 audit_evclass 230 8K 288 routetbl 58 7K 62 kqueue 63 7K 19036 plimit 24 6K 552 CAM DEV 3 6K 508 vt 11 6K 11 sglist 5 6K 5 CAM queue 5 6K 1522 DEVFSP 78 5K 82 ufs_dirhash 24 5K 24 taskqueue 42 5K 42 session 35 5K 55 pgrp 35 5K 94 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 kcovinfo 64 4K 68 lockf 34 4K 1377 hhook 13 4K 13 freefile 23 3K 22372 proc-args 52 3K 693 terminal 11 3K 11 dirrem 21 3K 22380 uidinfo 6 3K 53 acpisem 20 3K 20 sctp_ifa 17 3K 17 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 in_multi 8 2K 9 ip6ndp 12 2K 21 Unitno 32 2K 76927 CAM XPT 22 2K 542 acpidev 20 2K 20 crypto 2 2K 2 msi 9 2K 9 tun 7 2K 7 freework 5 2K 61192 mkdir 8 1K 36242 freeblks 4 1K 24296 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 cdev 4 1K 4 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 diradd 4 1K 22424 sctp_atcl 1 1K 3587 chacha20random 1 1K 1 epoch 4 1K 4 encap_export_host 8 1K 8 pfil 3 1K 3 inpcbpolicy 11 1K 4617 osd 3 1K 9 newdirblk 4 1K 18121 vnodes 1 1K 406 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 feeder 7 1K 7 loginclass 3 1K 3 atkbddev 2 1K 2 apmdev 1 1K 1 ip_msource 2 1K 17 pmchooks 1 1K 1 prison 4 1K 4 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 CAM path 4 1K 1030 soname 4 1K 7921 nexusdev 5 1K 5 filecaps 5 1K 99 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 sctp_atky 1 1K 4447 vnet_data_free 1 1K 1 iov 1 1K 27391 Per-cpu 1 1K 1 entropy 1 1K 45 sctp_athm 1 1K 3587 p1003.1b 1 1K 1 ppbusdev 0 0K 0 agtiapi_MemAlloc malloc 0 0K 0 osti_cacheable 0 0K 0 madt_table 0 0K 2 tempbuff 0 0K 0 tempbuff 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 vm_pgdata 0 0K 0 jblocks 0 0K 0 savedino 0 0K 23819 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 65 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 43 allocindir 0 0K 0 indirdep 0 0K 64210 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 26 ip6_msource 0 0K 0 ip6_moptions 0 0K 5 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 650 sctp_iter 0 0K 17 sctp_mvrf 0 0K 0 sctp_cpal 0 0K 9 sctp_cmsg 0 0K 0 sctp_stre 0 0K 0 sctp_athi 0 0K 0 sctp_a_it 0 0K 8 sctp_aadr 0 0K 0 sctp_stro 0 0K 840 sctp_stri 0 0K 0 sctp_map 0 0K 1680 newreno data 0 0K 0 ip_moptions 0 0K 18 in_mfilter 0 0K 91 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 132 mpr 0 0K 0 statfs 0 0K 18332 export_host 0 0K 0 cl_savebuf 0 0K 10 biobuf 0 0K 0 aios 0 0K 0 lio 0 0K 0 acl 0 0K 0 mfibuf 0 0K 0 mbuf_tag 0 0K 360 accf 0 0K 0 pts 0 0K 0 ioctlops 0 0K 138 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 866 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 CAM CCB 0 0K 243006 PUC 0 0K 0 db> show ktr No such command; use "help" to list available commands