panic: Bad link elm 0xfffff8003ae78000 next->prev != elm cpuid = 1 time = 1579796900 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00244a1650 vpanic() at vpanic+0x1ce/frame 0xfffffe00244a16c0 panic() at panic+0x43/frame 0xfffffe00244a1720 sctp_inpcb_free() at sctp_inpcb_free+0x1749/frame 0xfffffe00244a1790 sctp_close() at sctp_close+0x12f/frame 0xfffffe00244a17c0 soclose() at soclose+0x23e/frame 0xfffffe00244a1850 _fdrop() at _fdrop+0x38/frame 0xfffffe00244a1880 closef() at closef+0x2c6/frame 0xfffffe00244a1910 fdescfree_fds() at fdescfree_fds+0xa4/frame 0xfffffe00244a1960 fdescfree() at fdescfree+0x60f/frame 0xfffffe00244a1a30 exit1() at exit1+0x765/frame 0xfffffe00244a1aa0 sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe00244a1ab0 ia32_syscall() at ia32_syscall+0x48c/frame 0xfffffe00244a1bf0 int0x80_syscall_common() at int0x80_syscall_common+0x9c KDB: enter: panic [ thread pid 2104 tid 100100 ] Stopped at kdb_enter+0x67: movq $0,0x1466d26(%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 0xffffffff810ba280 vprintf+0x140 rdx 0x1 rbx 0 rsp 0xfffffe00244a1630 rbp 0xfffffe00244a1650 rsi 0 rdi 0xffffffff810ba2b6 vprintf+0x176 r8 0 r9 0xffffffff r10 0 r11 0xfffff8003ad334f0 r12 0xffffffff82068d90 ddb_dbbe r13 0 r14 0xffffffff8193773f r15 0xffffffff8193773f rip 0xffffffff810af377 kdb_enter+0x67 rflags 0x200086 kernphys+0x86 kdb_enter+0x67: movq $0,0x1466d26(%rip) db> show proc Process 2104 (syz-executor.2) at 0xfffff8003a34ca60: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 778 at 0xfffff8003a5c4a60 ABI: FreeBSD ELF32 arguments: /root/syz-executor.2 reaper: 0xfffff800032fa530 reapsubtree: 1 sigparent: 20 vmspace: 0xfffff8003a3fa000 (map 0xfffff8003a3fa000) (map.pmap 0xfffff8003a3fa0c0) (pmap 0xfffff8003a3fa120) threads: 1 100100 Run CPU 1 syz-executor.2 db> ps pid ppid pgrp uid state wmesg wchan cmd 2106 784 784 0 S (threaded) syz-executor.3 100271 S nanslp 0xffffffff824feca0 syz-executor.3 100991 S connec 0xfffff80003e89800 syz-executor.3 100995 S connec 0xfffff80003e84800 syz-executor.3 100998 S connec 0xfffff80003e87478 syz-executor.3 100999 S uwait 0xfffff80003a5c980 syz-executor.3 2105 768 768 0 S (threaded) syz-executor.0 100455 S nanslp 0xffffffff824feca1 syz-executor.0 100992 S connec 0xfffff80003e840f0 syz-executor.0 100997 S uwait 0xfffff8003af03080 syz-executor.0 2104 778 778 0 RE CPU 1 syz-executor.2 1625 1618 1625 0 Ss select 0xfffff8003a3a3140 dhclient 1622 1 1622 0 Ss select 0xfffff8003a3a3040 dhclient 1618 1607 422 65 S select 0xfffff80003f366c0 dhclient 1607 422 422 0 S wait 0xfffff8003600d000 sh 784 766 784 0 Ss nanslp 0xffffffff824feca1 syz-executor.3 778 766 778 0 Ss nanslp 0xffffffff824feca1 syz-executor.2 769 766 769 0 Ss piperd 0xfffff80003da68e8 syz-executor.1 768 766 768 0 Ss nanslp 0xffffffff824feca0 syz-executor.0 766 764 764 0 S (threaded) syz-fuzzer 100103 S uwait 0xfffff80003a5a180 syz-fuzzer 100104 S uwait 0xfffff80003ce4100 syz-fuzzer 100105 S uwait 0xfffff80003ce4200 syz-fuzzer 100106 S uwait 0xfffff80003ce4300 syz-fuzzer 100107 S uwait 0xfffff80003ce4400 syz-fuzzer 100108 S kqread 0xfffff80003b3d000 syz-fuzzer 100109 S uwait 0xfffff80003ce3b80 syz-fuzzer 100110 S uwait 0xfffff80003ce3c80 syz-fuzzer 100111 S uwait 0xfffff80003a5a280 syz-fuzzer 100113 S uwait 0xfffff80003ce3d80 syz-fuzzer 100114 S uwait 0xfffff80003ce3e80 syz-fuzzer 764 762 764 0 Ss pause 0xfffff8003a34c0a8 csh 762 680 762 0 Ss select 0xfffff8003a3a3dc0 sshd 746 1 746 0 Ss+ ttyin 0xfffff800033f7cb0 getty 745 1 745 0 Ss+ ttyin 0xfffff800033f8cb0 getty 744 1 744 0 Ss+ ttyin 0xfffff80003ac20b0 getty 743 1 743 0 Ss+ ttyin 0xfffff80003ac24b0 getty 742 1 742 0 Ss+ ttyin 0xfffff80003ac28b0 getty 741 1 741 0 Ss+ ttyin 0xfffff80003ac2cb0 getty 740 1 740 0 Ss+ ttyin 0xfffff80003ac30b0 getty 739 1 739 0 Ss+ ttyin 0xfffff80003ac34b0 getty 738 1 738 0 Ss+ ttyin 0xfffff80003ac38b0 getty 684 1 684 0 Ss nanslp 0xffffffff824feca1 cron 680 1 680 0 Ss select 0xfffff8003a3700c0 sshd 493 1 493 0 Ss select 0xfffff8003a268ac0 syslogd 422 1 422 0 Ss wait 0xfffff80003e33a60 devd 421 1 421 65 Ss select 0xfffff8003a268b40 dhclient 336 1 336 0 Ss select 0xfffff8003a268c40 dhclient 333 1 333 0 Ss select 0xfffff8003a3701c0 dhclient 21 0 0 0 DL vlruwt 0xfffff80003b01a60 [vnlru] 20 0 0 0 DL syncer 0xffffffff825d5118 [syncer] 19 0 0 0 DL (threaded) [bufdaemon] 100065 D qsleep 0xffffffff825d4618 [bufdaemon] 100070 D - 0xffffffff8200a980 [bufspacedaemon-0] 100082 D sdflush 0xfffff80003d058e8 [/ 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 0xffffffff8153d760 [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 0xfffff800034d4400 [virtio_balloon] 100050 D - 0xfffff8000333bb00 [mca taskq] 100055 D - 0xffffffff81cdb260 [deadlkres] 100057 D - 0xfffff80003b3d100 [acpi_task_0] 100058 D - 0xfffff80003b3d100 [acpi_task_1] 100059 D - 0xfffff80003b3d100 [acpi_task_2] 100061 D - 0xfffff8000333c100 [CAM taskq] db> show all locks Process 2104 (syz-executor.2) thread 0xfffff80003f7d6e0 (100100) exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffff8003ae78468) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3335 exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe0004958b50) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3333 exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffff8003ae78488) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:3332 db> show malloc Type InUse MemUse Requests devbuf 4213 4851K 4241 vtbuf 24 1968K 46 sysctloid 26527 1553K 26591 kobj 332 1328K 488 newblk 9 1026K 1800 vfscache 4 1025K 4 pcb 49 566K 1772 inodedep 31 527K 1308 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 134 249K 2193 acpica 1674 185K 49750 vnet_data 1 168K 1 filedesc 19 133K 2479 pagedep 10 131K 1238 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 105 105K 122 linker 221 89K 252 bus 988 79K 3332 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 494 62K 494 umtx 340 43K 340 BPF 22 36K 22 shm 2 34K 8 gtaskqueue 22 34K 22 kdtrace 173 34K 6185 hostcache 1 32K 1 DEVFS3 124 31K 134 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 71 24K 73 kbdmux 6 22K 6 vmem 3 19K 4 lltable 47 18K 56 temp 34 17K 1949 ufs_mount 3 17K 4 proc 3 17K 3 tty 16 16K 16 tidhash 1 16K 1 sctp_timw 57 15K 57 ithread 89 15K 89 ether_multi 172 14K 177 bus-sc 30 14K 1394 sctp_atcl 25 13K 1355 KTRACE 100 13K 100 ifnet 7 13K 7 sctp_stro 12 12K 608 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 2 9K 1277 devstat 4 9K 4 UART 12 9K 12 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 routetbl 58 8K 62 audit_evclass 231 8K 289 cred 28 7K 230 CAM DEV 3 6K 510 kqueue 54 6K 2117 vt 11 6K 11 plimit 21 6K 351 sglist 5 6K 5 CAM queue 5 6K 1528 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 234 4K 234 select 28 4K 28 hhook 13 4K 13 session 25 4K 38 pgrp 25 4K 40 acpisem 22 3K 22 freefile 22 3K 1236 terminal 11 3K 11 dirrem 21 3K 1238 proc-args 44 3K 572 uidinfo 4 3K 5 sctp_ifa 17 3K 17 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 lockf 19 2K 29 ip6ndp 12 2K 21 Unitno 28 2K 1787 CAM XPT 22 2K 543 sctp_atky 37 2K 1967 in_multi 6 2K 7 acpidev 20 2K 20 crypto 2 2K 2 msi 9 2K 9 tun 7 2K 7 freework 5 2K 1232 mkdir 8 1K 2452 freeblks 4 1K 1231 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 vnodemarker 2 1K 29 NFSD session 1 1K 1 CAM periph 4 1K 271 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 1271 pfil 4 1K 4 chacha20random 1 1K 1 epoch 4 1K 4 cdev 2 1K 2 encap_export_host 8 1K 8 sctp_athm 25 1K 1358 sctp_map 24 1K 1216 newdirblk 5 1K 1226 osd 3 1K 9 inpcbpolicy 8 1K 477 vnodes 1 1K 2 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 soname 8 1K 6702 feeder 7 1K 7 loginclass 3 1K 3 CAM path 4 1K 1034 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 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 filecaps 2 1K 92 p1003.1b 1 1K 1 CAM CCB 0 0K 2046 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 456 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 10 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 510 sctp_iter 0 0K 9 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_a_it 0 0K 9 sctp_aadr 0 0K 0 sctp_stri 0 0K 0 newreno data 0 0K 0 ip_msource 0 0K 0 ip_moptions 0 0K 6 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 1403 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 128 accf 0 0K 0 pts 0 0K 0 iov 0 0K 14201 ioctlops 0 0K 114 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 583 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 5 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