panic: Assertion in_epoch(net_epoch_preempt) failed at /syzkaller/managers/main/kernel/sys/netinet6/ip6_output.c:448 cpuid = 0 time = 1584437791 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0024aef050 vpanic() at vpanic+0x1c7/frame 0xfffffe0024aef0b0 panic() at panic+0x43/frame 0xfffffe0024aef110 ip6_output() at ip6_output+0x3789/frame 0xfffffe0024aef390 sctp_lowlevel_chunk_output() at sctp_lowlevel_chunk_output+0x18c7/frame 0xfffffe0024aef4d0 sctp_send_initiate() at sctp_send_initiate+0xa3f/frame 0xfffffe0024aef5d0 sctp_lower_sosend() at sctp_lower_sosend+0x3f3e/frame 0xfffffe0024aef7b0 sctp_sosend() at sctp_sosend+0x501/frame 0xfffffe0024aef8e0 sosend() at sosend+0xc6/frame 0xfffffe0024aef950 kern_sendit() at kern_sendit+0x33d/frame 0xfffffe0024aefa00 sendit() at sendit+0x224/frame 0xfffffe0024aefa60 sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0024aefac0 amd64_syscall() at amd64_syscall+0x2f4/frame 0xfffffe0024aefbf0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0024aefbf0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x41332a, rsp = 0x7fffdfffdf38, rbp = 0x6 --- KDB: enter: panic [ thread pid 1596 tid 100535 ] Stopped at kdb_enter+0x67: movq $0,0x146d296(%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 0xfffffe0028a00000 rdx 0x3ffff rbx 0 rsp 0xfffffe0024aef030 rbp 0xfffffe0024aef050 rsi 0x40001 rdi 0xffffffff810b4ce6 vprintf+0x176 r8 0 r9 0xffffffff r10 0xb43d ll+0xb41c r11 0xfffffe0024988d10 r12 0xffffffff82068e30 ddb_dbbe r13 0 r14 0xffffffff81932be6 r15 0xffffffff81932be6 rip 0xffffffff810a9fa7 kdb_enter+0x67 rflags 0x86 ll+0x65 kdb_enter+0x67: movq $0,0x146d296(%rip) db> show proc Process 1596 (syz-executor.1) at 0xfffff8003ac7a530: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 771 at 0xfffff8003a53d000 ABI: FreeBSD ELF64 arguments: /root/syz-executor.1 reaper: 0xfffff80003311000 reapsubtree: 1 sigparent: 20 vmspace: 0xfffffe0024955000 (map 0xfffffe0024955000) (map.pmap 0xfffffe00249550c0) (pmap 0xfffffe0024955120) threads: 2 100115 Run CPU 1 syz-executor.1 100535 Run CPU 0 syz-executor.1 db> ps pid ppid pgrp uid state wmesg wchan cmd 1598 770 770 0 R (threaded) syz-executor.0 100358 RunQ syz-executor.0 100536 RunQ syz-executor.0 1597 773 773 0 R (threaded) syz-executor.3 100436 RunQ syz-executor.3 100537 S sbwait 0xfffffe0003daf37c syz-executor.3 1596 771 771 0 R (threaded) syz-executor.1 100115 Run CPU 1 syz-executor.1 100535 Run CPU 0 syz-executor.1 1595 772 772 0 R (threaded) syz-executor.2 100435 RunQ syz-executor.2 100532 S uwait 0xfffff80003479900 syz-executor.2 1015 1009 1015 0 Ss select 0xfffff80003573840 dhclient 1012 1 1012 0 Ss select 0xfffff800035736c0 dhclient 1009 1002 422 65 S select 0xfffff8000355f140 dhclient 1002 422 422 0 S wait 0xfffff8003a53d530 sh 773 766 773 0 Ss nanslp 0xffffffff824ffe40 syz-executor.3 772 766 772 0 Ss nanslp 0xffffffff824ffe40 syz-executor.2 771 766 771 0 Ss nanslp 0xffffffff824ffe40 syz-executor.1 770 766 770 0 Ss nanslp 0xffffffff824ffe40 syz-executor.0 766 764 764 0 S (threaded) syz-fuzzer 100080 S uwait 0xfffff80003820a00 syz-fuzzer 100097 S uwait 0xfffff80003820200 syz-fuzzer 100098 S uwait 0xfffff80003820b80 syz-fuzzer 100099 S uwait 0xfffff80003820b00 syz-fuzzer 100100 S uwait 0xfffff80003820a80 syz-fuzzer 100101 S uwait 0xfffff80003a84580 syz-fuzzer 100102 S uwait 0xfffff80003a85100 syz-fuzzer 100103 S uwait 0xfffff80003a85200 syz-fuzzer 100104 S kqread 0xfffff80003843100 syz-fuzzer 100105 S uwait 0xfffff80003a82b80 syz-fuzzer 100107 S uwait 0xfffff80003a82c80 syz-fuzzer 764 762 764 0 Ss pause 0xfffff80003d35b08 csh 762 680 762 0 Ss select 0xfffff8000355ca40 sshd 746 1 746 0 Ss+ ttyin 0xfffff800033ea8b0 getty 745 1 745 0 Ss+ ttyin 0xfffff80003b460b0 getty 744 1 744 0 Ss+ ttyin 0xfffff80003b464b0 getty 743 1 743 0 Ss+ ttyin 0xfffff80003b468b0 getty 742 1 742 0 Ss+ ttyin 0xfffff80003b46cb0 getty 741 1 741 0 Ss+ ttyin 0xfffff80003b490b0 getty 740 1 740 0 Ss+ ttyin 0xfffff80003b494b0 getty 739 1 739 0 Ss+ ttyin 0xfffff80003b498b0 getty 738 1 738 0 Ss+ ttyin 0xfffff80003b49cb0 getty 684 1 684 0 Ss nanslp 0xffffffff824ffe41 cron 680 1 680 0 Ss select 0xfffff8000355f2c0 sshd 493 1 493 0 Ss select 0xfffff8000355cec0 syslogd 422 1 422 0 Ss wait 0xfffff80003d35530 devd 421 1 421 65 Ss select 0xfffff80003a96bc0 dhclient 336 1 336 0 Ss select 0xfffff80003a96d40 dhclient 333 1 333 0 Ss select 0xfffff80003a96e40 dhclient 21 0 0 0 DL vlruwt 0xfffff800033f1a60 [vnlru] 20 0 0 0 DL syncer 0xffffffff825d62d8 [syncer] 19 0 0 0 DL (threaded) [bufdaemon] 100065 D qsleep 0xffffffff825d57d8 [bufdaemon] 100070 D - 0xffffffff8200aa00 [bufspacedaemon-0] 100081 D sdflush 0xfffff8000341ace8 [/ worker] 18 0 0 0 DL psleep 0xffffffff825f1248 [vmdaemon] 17 0 0 0 DL (threaded) [pagedaemon] 100063 D psleep 0xffffffff8261d158 [dom0] 100068 D launds 0xffffffff8261d164 [laundry: dom0] 100069 D umarcl 0xffffffff81536ad0 [uma] 16 0 0 0 DL - 0xffffffff8235a6b0 [rand_harvestq] 15 0 0 0 DL waiting 0xffffffff82662720 [sctp_iterator] 9 0 0 0 DL - 0xffffffff825d51dc [soaiod4] 8 0 0 0 DL - 0xffffffff825d51dc [soaiod3] 7 0 0 0 DL - 0xffffffff825d51dc [soaiod2] 6 0 0 0 DL - 0xffffffff825d51dc [soaiod1] 5 0 0 0 DL (threaded) [cam] 100031 D - 0xffffffff82235ac0 [doneq0] 100062 D - 0xffffffff82235988 [scanner] 4 0 0 0 DL crypto_ 0xfffff8000321b190 [crypto returns 1] 3 0 0 0 DL crypto_ 0xfffff8000321b130 [crypto returns 0] 2 0 0 0 DL crypto_ 0xffffffff825eb2b8 [crypto] 14 0 0 0 DL seqstat 0xfffff80003369888 [sequencer 00] 13 0 0 0 DL (threaded) [geom] 100022 D - 0xffffffff8261b788 [g_event] 100023 D - 0xffffffff8261b798 [g_up] 100024 D - 0xffffffff8261b790 [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 [swi1: netisr 0] 100018 I [swi3: vm] 100019 I [swi4: clock (0)] 100020 I [swi4: clock (1)] 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 0xfffff80003311000 [init] 10 0 0 0 DL audit_w 0xffffffff826633b0 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff8260adc8 [swapper] 100006 D - 0xfffff80003338000 [thread taskq] 100008 D - 0xfffff80003205d00 [config_0] 100009 D - 0xfffff80003339d00 [kqueue_ctx taskq] 100010 D - 0xfffff80003339c00 [aiod_kick taskq] 100012 D - 0xfffff80003205c00 [if_config_tqg_0] 100013 D - 0xfffff80003205b00 [if_io_tqg_0] 100014 D - 0xfffff80003205a00 [if_io_tqg_1] 100015 D - 0xfffff80003205900 [softirq_0] 100016 D - 0xfffff80003205800 [softirq_1] 100021 D - 0xfffff80003339a00 [firmware taskq] 100026 D - 0xfffff80003339800 [crypto_0] 100027 D - 0xfffff80003339800 [crypto_1] 100041 D - 0xfffff80003334a00 [vtnet0 rxq 0] 100042 D - 0xfffff80003334900 [vtnet0 txq 0] 100043 D - 0xfffff80003334800 [vtnet0 rxq 1] 100044 D - 0xfffff80003334700 [vtnet0 txq 1] 100046 D vtbslp 0xfffff80003572d80 [virtio_balloon] 100050 D - 0xfffff80003845000 [mca taskq] 100055 D - 0xffffffff81cd5e80 [deadlkres] 100058 D - 0xfffff80003a3e400 [acpi_task_0] 100059 D - 0xfffff80003a3e400 [acpi_task_1] 100060 D - 0xfffff80003a3e400 [acpi_task_2] 100061 D - 0xfffff80003339600 [CAM taskq] db> show all locks Process 1596 (syz-executor.1) thread 0xfffffe002496f000 (100115) exclusive sleep mutex umtxql (umtxql) r = 0 (0xffffffff82510aa0) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_umtx.c:512 Process 1596 (syz-executor.1) thread 0xfffffe0024988800 (100535) exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe0024d1ea90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_output.c:13643 db> show malloc Type InUse MemUse Requests devbuf 4213 4851K 4241 vtbuf 24 1968K 46 sysctloid 26033 1517K 26097 kobj 332 1328K 488 newblk 45 1035K 2291 vfscache 4 1025K 4 inodedep 146 585K 844 pcb 37 551K 3652 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 126 249K 1672 acpica 1674 185K 52709 vnet_data 1 168K 1 filedesc 21 149K 1451 pagedep 9 130K 730 tfo_ccache 1 128K 1 sem 4 106K 4 DEVFS1 105 105K 122 linker 222 89K 253 bus 988 79K 3374 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 494 62K 494 umtx 306 39K 306 BPF 22 36K 22 gtaskqueue 22 34K 22 dirrem 135 34K 766 kdtrace 170 33K 4710 hostcache 1 32K 1 shm 1 32K 8 DEVFS3 124 31K 134 msg 4 30K 4 DEVFS_RULE 56 27K 56 ifaddr 70 24K 73 vmem 3 22K 4 kbdmux 6 22K 6 lltable 48 18K 87 freefile 136 17K 762 temp 34 17K 1964 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 182 bus-sc 30 14K 1431 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 82 10K 423 bmsafemap 2 9K 829 UART 12 9K 12 devstat 4 9K 4 rpc 2 8K 2 sctp_timw 32 8K 32 shmfd 1 8K 1 pfs_vncache 1 8K 1 routetbl 58 8K 62 audit_evclass 232 8K 290 cred 25 7K 323 CAM DEV 3 6K 510 sctp_atcl 12 6K 1743 sctp_stro 6 6K 197 kqueue 55 6K 1605 freework 23 6K 967 vt 11 6K 11 plimit 21 6K 372 sglist 5 6K 5 CAM queue 5 6K 1528 select 40 5K 40 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 236 4K 236 hhook 13 4K 13 session 25 4K 39 pgrp 25 4K 43 acpisem 22 3K 22 terminal 11 3K 11 freeblks 10 3K 759 proc-args 44 3K 575 uidinfo 4 3K 9 lockf 21 3K 326 sctp_ifa 17 3K 17 local_apic 1 2K 1 io_apic 1 2K 1 ipsec-saq 2 2K 2 ip6ndp 12 2K 22 Unitno 32 2K 895 CAM XPT 22 2K 543 in_multi 6 2K 8 crypto 2 2K 2 acpidev 20 2K 20 msi 9 2K 9 tun 7 2K 7 softdep 1 1K 1 mkdir 8 1K 1426 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 vnodemarker 2 1K 36 NFSD session 1 1K 1 CAM periph 4 1K 271 mld 6 1K 6 sctp_ifn 6 1K 6 sctp_atky 18 1K 1951 igmp 6 1K 6 toponodes 6 1K 6 isadev 6 1K 6 mount 16 1K 86 pci_link 10 1K 10 newdirblk 4 1K 713 diradd 4 1K 799 pfil 4 1K 4 chacha20random 1 1K 1 CAM SIM 2 1K 2 epoch 4 1K 4 cdev 2 1K 2 encap_export_host 8 1K 8 inpcbpolicy 12 1K 1765 osd 3 1K 9 indirdep 1 1K 260 vnodes 1 1K 3 NFSD lckfile 1 1K 1 NFSD V4client 1 1K 1 DEVFS 9 1K 10 feeder 7 1K 7 sctp_athm 12 1K 1746 sctp_map 12 1K 394 loginclass 3 1K 6 soname 5 1K 6687 CAM dev queue 2 1K 2 CAM I/O Scheduler 1 1K 1 apmdev 1 1K 1 atkbddev 2 1K 2 CAM path 4 1K 1034 iov 1 1K 14622 pmchooks 1 1K 1 prison 4 1K 4 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 90 p1003.1b 1 1K 1 ath_hal 0 0K 0 athdev 0 0K 0 madt_table 0 0K 2 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 pvscsi 0 0K 0 smartpqi 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 iavf 0 0K 0 ixl 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 fpukern_ctx 0 0K 0 xen_intr 0 0K 0 ac97 0 0K 0 hdacc 0 0K 0 xen_hvm 0 0K 0 legacydrv 0 0K 0 qpidrv 0 0K 0 hdac 0 0K 0 hdaa 0 0K 0 dmar_idpgtbl 0 0K 0 dmar_dom 0 0K 0 dmar_ctx 0 0K 0 dmar_dmamap 0 0K 0 acpi_perf 0 0K 0 acpicmbat 0 0K 0 SIIS driver 0 0K 0 isci 0 0K 0 bxe_ilt 0 0K 0 xenbus 0 0K 0 CAM CCB 0 0K 3799 vm_fictitious 0 0K 0 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 ag_tgt_map_t malloc 0 0K 0 UMAHash 0 0K 0 ag_slr_map_t malloc 0 0K 0 lDevFlags * malloc 0 0K 0 vm_pgdata 0 0K 0 jblocks 0 0K 0 savedino 0 0K 461 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 18 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 7 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 16 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 997 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 5 in_mfilter 0 0K 4 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 tiDeviceHandle_t * malloc 0 0K 0 statfs 0 0K 891 export_host 0 0K 0 cl_savebuf 0 0K 3 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 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 CAM ccb queue 0 0K 0 mrsasbuf 0 0K 0 mpt_user 0 0K 0 mps_user 0 0K 0 biobuf 0 0K 0 aios 0 0K 0 lio 0 0K 0 acl 0 0K 0 MPSSAS 0 0K 0 mbuf_tag 0 0K 162 accf 0 0K 0 pts 0 0K 0 ioctlops 0 0K 180 Witness 0 0K 0 stack 0 0K 0 mps 0 0K 0 mpr_user 0 0K 0 MPRSAS 0 0K 0 mpr 0 0K 0 mfibuf 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 588 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 pwd 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 db> show ktr No such command; use "help" to list available commands