panic: Assertion in_epoch(net_epoch_preempt) failed at /syzkaller/managers/main/kernel/sys/netinet/ip_output.c:325 cpuid = 0 time = 1584586389 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0024b43180 vpanic() at vpanic+0x1c7/frame 0xfffffe0024b431e0 panic() at panic+0x43/frame 0xfffffe0024b43240 ip_output() at ip_output+0x2489/frame 0xfffffe0024b43390 sctp_lowlevel_chunk_output() at sctp_lowlevel_chunk_output+0xffc/frame 0xfffffe0024b434d0 sctp_send_initiate() at sctp_send_initiate+0xa3f/frame 0xfffffe0024b435d0 sctp_lower_sosend() at sctp_lower_sosend+0x3f3e/frame 0xfffffe0024b437b0 sctp_sosend() at sctp_sosend+0x501/frame 0xfffffe0024b438e0 sosend() at sosend+0xc6/frame 0xfffffe0024b43950 kern_sendit() at kern_sendit+0x33d/frame 0xfffffe0024b43a00 sendit() at sendit+0x224/frame 0xfffffe0024b43a60 sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0024b43ac0 amd64_syscall() at amd64_syscall+0x2f4/frame 0xfffffe0024b43bf0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0024b43bf0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x41332a, rsp = 0x7fffdfffdf38, rbp = 0x6 --- KDB: enter: panic [ thread pid 1806 tid 101057 ] Stopped at kdb_enter+0x67: movq $0,0x146d086(%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 0xfffffe0025200000 rdx 0x3ffff rbx 0 rsp 0xfffffe0024b43160 rbp 0xfffffe0024b43180 rsi 0x40001 rdi 0xffffffff810b4f46 vprintf+0x176 r8 0 r9 0xffffffff r10 0x6fb ll+0x6da r11 0xfffffe0024d88510 r12 0xffffffff82068e30 ddb_dbbe r13 0 r14 0xffffffff81932cbd r15 0xffffffff81932cbd rip 0xffffffff810aa207 kdb_enter+0x67 rflags 0x86 ll+0x65 kdb_enter+0x67: movq $0,0x146d086(%rip) db> show proc Process 1806 (syz-executor.0) at 0xfffff80003c2f530: state: NORMAL uid: 0 gids: 0, 0, 5 parent: pid 768 at 0xfffff8000b8ef000 ABI: FreeBSD ELF64 arguments: /root/syz-executor.0 reaper: 0xfffff80003311000 reapsubtree: 1 sigparent: 20 vmspace: 0xfffffe0003de8000 (map 0xfffffe0003de8000) (map.pmap 0xfffffe0003de80c0) (pmap 0xfffffe0003de8120) threads: 3 100098 Run CPU 1 syz-executor.0 101057 Run CPU 0 syz-executor.0 101062 S uwait 0xfffff8000b1a4080 syz-executor.0 db> ps pid ppid pgrp uid state wmesg wchan cmd 1806 768 768 0 R (threaded) syz-executor.0 100098 Run CPU 1 syz-executor.0 101057 Run CPU 0 syz-executor.0 101062 S uwait 0xfffff8000b1a4080 syz-executor.0 1802 769 769 0 S (threaded) syz-executor.1 100071 S nanslp 0xffffffff824ffe91 syz-executor.1 101042 S uwait 0xfffff8000b1a4480 syz-executor.1 101044 S pipdwt 0xfffff8000b375460 syz-executor.1 101045 S uwait 0xfffff8000b1a4980 syz-executor.1 101047 S uwait 0xfffff8000b1a4880 syz-executor.1 1682 1676 1682 0 Ss select 0xfffff800033078c0 dhclient 1679 1 1679 0 Ss select 0xfffff800035aa3c0 dhclient 1676 1669 422 65 S select 0xfffff800033079c0 dhclient 1669 422 422 0 S wait 0xfffff8000b911a60 sh 1660 1 1660 65 Ss select 0xfffff800035aa740 dhclient 1050 1 1050 0 Ss select 0xfffff80003307740 dhclient 1047 1 1047 0 Ss select 0xfffff80003307d40 dhclient 848 766 848 0 Ss piperd 0xfffff80003c10000 syz-executor.3 798 766 798 0 Ss piperd 0xfffff80003c0e2f8 syz-executor.2 769 766 769 0 Ss nanslp 0xffffffff824ffe90 syz-executor.1 768 766 768 0 Ss nanslp 0xffffffff824ffe90 syz-executor.0 766 764 764 0 S (threaded) syz-fuzzer 100074 S uwait 0xfffff800031deb80 syz-fuzzer 100099 S uwait 0xfffff800031dd000 syz-fuzzer 100100 S uwait 0xfffff800031de100 syz-fuzzer 100101 S uwait 0xfffff800031de080 syz-fuzzer 100102 S uwait 0xfffff80003aa4b00 syz-fuzzer 100103 S uwait 0xfffff800031de000 syz-fuzzer 100104 S kqread 0xfffff80003339a00 syz-fuzzer 100105 S uwait 0xfffff80003aa4c00 syz-fuzzer 100107 S uwait 0xfffff80003aa4e00 syz-fuzzer 100110 S uwait 0xfffff80003aa5b80 syz-fuzzer 100139 S uwait 0xfffff80003aa2900 syz-fuzzer 764 762 764 0 Ss pause 0xfffff80003c73b08 csh 762 680 762 0 Ss select 0xfffff80003307cc0 sshd 746 1 746 0 Ss+ ttyin 0xfffff800034178b0 getty 745 1 745 0 Ss+ ttyin 0xfffff80003412cb0 getty 744 1 744 0 Ss+ ttyin 0xfffff800034150b0 getty 743 1 743 0 Ss+ ttyin 0xfffff800034154b0 getty 742 1 742 0 Ss+ ttyin 0xfffff800034158b0 getty 741 1 741 0 Ss+ ttyin 0xfffff80003415cb0 getty 740 1 740 0 Ss+ ttyin 0xfffff800034140b0 getty 739 1 739 0 Ss+ ttyin 0xfffff800034144b0 getty 738 1 738 0 Ss+ ttyin 0xfffff800034148b0 getty 684 1 684 0 Ss nanslp 0xffffffff824ffe90 cron 680 1 680 0 Ss select 0xfffff800035aac40 sshd 493 1 493 0 Ss select 0xfffff800035aab40 syslogd 422 1 422 0 Ss wait 0xfffff80003b4c000 devd 421 1 421 65 Ss select 0xfffff800035aa940 dhclient 336 1 336 0 Ss select 0xfffff800035aaac0 dhclient 333 1 333 0 Ss select 0xfffff800033066c0 dhclient 21 0 0 0 DL - 0xffffffff825d525c [soaiod4] 20 0 0 0 DL - 0xffffffff825d525c [soaiod3] 19 0 0 0 DL - 0xffffffff825d525c [soaiod2] 18 0 0 0 DL - 0xffffffff825d525c [soaiod1] 17 0 0 0 DL vlruwt 0xfffff80003ad6530 [vnlru] 16 0 0 0 DL syncer 0xffffffff825d6358 [syncer] 15 0 0 0 DL (threaded) [bufdaemon] 100061 D qsleep 0xffffffff825d5858 [bufdaemon] 100070 D - 0xffffffff8200aa00 [bufspacedaemon-0] 100080 D sdflush 0xfffff80003c72ce8 [/ worker] 9 0 0 0 DL psleep 0xffffffff825f12c8 [vmdaemon] 8 0 0 0 DL (threaded) [pagedaemon] 100059 D psleep 0xffffffff8261d1d8 [dom0] 100064 D launds 0xffffffff8261d1e4 [laundry: dom0] 100065 D umarcl 0xffffffff81536d60 [uma] 7 0 0 0 DL - 0xffffffff8235a6b0 [rand_harvestq] 6 0 0 0 DL waiting 0xffffffff826627a0 [sctp_iterator] 5 0 0 0 DL (threaded) [cam] 100031 D - 0xffffffff82235ac0 [doneq0] 100058 D - 0xffffffff82235988 [scanner] 4 0 0 0 DL crypto_ 0xfffff80003378890 [crypto returns 1] 3 0 0 0 DL crypto_ 0xfffff80003378830 [crypto returns 0] 2 0 0 0 DL crypto_ 0xffffffff825eb338 [crypto] 14 0 0 0 DL seqstat 0xfffff800033ab888 [sequencer 00] 13 0 0 0 DL (threaded) [geom] 100022 D - 0xffffffff8261b808 [g_event] 100023 D - 0xffffffff8261b818 [g_up] 100024 D - 0xffffffff8261b810 [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 0xffffffff82663430 [audit] 0 0 0 0 DLs (threaded) [kernel] 100000 D swapin 0xffffffff8260ae48 [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 - 0xfffff800033b0300 [firmware taskq] 100026 D - 0xfffff800033b0100 [crypto_0] 100027 D - 0xfffff800033b0100 [crypto_1] 100041 D - 0xfffff800033af300 [vtnet0 rxq 0] 100042 D - 0xfffff800033af200 [vtnet0 txq 0] 100043 D - 0xfffff800033af100 [vtnet0 rxq 1] 100044 D - 0xfffff800033af000 [vtnet0 txq 1] 100046 D vtbslp 0xfffff800035b6e80 [virtio_balloon] 100050 D - 0xfffff80003338400 [mca taskq] 100051 D - 0xffffffff81cd5fe1 [deadlkres] 100053 D - 0xfffff80003338200 [acpi_task_0] 100054 D - 0xfffff80003338200 [acpi_task_1] 100055 D - 0xfffff80003338200 [acpi_task_2] 100057 D - 0xfffff800033b1e00 [CAM taskq] db> show all locks Process 1806 (syz-executor.0) thread 0xfffffe0024d88000 (101057) exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00249f1a90) 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 15 1028K 3806 vfscache 4 1025K 4 inodedep 144 584K 1083 pcb 34 548K 4577 ufs_quota 1 512K 1 vfs_hash 1 512K 1 callout 2 512K 2 intr 4 388K 4 subproc 127 253K 1883 acpica 1674 185K 52709 vnet_data 1 168K 1 pagedep 10 131K 928 tfo_ccache 1 128K 1 filedesc 17 117K 1825 sem 4 106K 4 DEVFS1 105 105K 122 linker 222 89K 253 bus 980 79K 3374 mtx_pool 2 72K 2 syncache 1 68K 1 acpitask 1 64K 1 ddb_capture 1 64K 1 module 494 62K 494 BPF 30 53K 30 umtx 324 41K 324 gtaskqueue 22 34K 22 kdtrace 174 34K 5652 dirrem 133 34K 983 hostcache 1 32K 1 shm 1 32K 5 DEVFS3 124 31K 134 msg 4 30K 4 sctp_timw 106 27K 106 DEVFS_RULE 56 27K 56 ifaddr 72 24K 74 vmem 3 22K 4 kbdmux 6 22K 6 lltable 46 17K 53 temp 34 17K 2051 freefile 133 17K 981 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 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 1090 UART 12 9K 12 devstat 4 9K 4 rpc 2 8K 2 shmfd 1 8K 1 pfs_vncache 1 8K 1 routetbl 58 8K 62 audit_evclass 232 8K 290 cred 25 7K 257 CAM DEV 3 6K 510 kqueue 56 6K 1816 plimit 22 6K 371 vt 11 6K 11 sglist 5 6K 5 CAM queue 5 6K 1528 sctp_atcl 10 5K 3813 sctp_stro 5 5K 1623 ufs_dirhash 24 5K 24 select 37 5K 37 DEVFSP 74 5K 78 taskqueue 42 5K 42 memdesc 1 4K 1 MCA 32 4K 32 evdev 4 4K 4 kcovinfo 64 4K 68 UMA 236 4K 236 session 28 4K 41 pgrp 28 4K 43 hhook 13 4K 13 acpisem 22 3K 22 terminal 11 3K 11 proc-args 47 3K 598 lockf 23 3K 70 uidinfo 3 3K 10 sctp_ifa 17 3K 17 freework 9 3K 1423 local_apic 1 2K 1 io_apic 1 2K 1 freeblks 8 2K 997 ipsec-saq 2 2K 2 ip6ndp 12 2K 21 CAM XPT 22 2K 543 Unitno 27 2K 1931 in_multi 6 2K 7 crypto 2 2K 2 acpidev 20 2K 20 msi 9 2K 9 tun 7 2K 7 softdep 1 1K 1 mkdir 8 1K 1808 ipsecpolicy 1 1K 1 sahead 1 1K 1 secasvar 1 1K 1 clone 8 1K 8 vnodemarker 2 1K 38 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 diradd 5 1K 1018 sctp_atky 15 1K 5437 newdirblk 4 1K 904 pfil 4 1K 4 chacha20random 1 1K 1 CAM SIM 2 1K 2 epoch 4 1K 4 cdev 2 1K 2 inpcbpolicy 14 1K 2209 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 6 sctp_athm 10 1K 3814 sctp_map 10 1K 3246 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 soname 5 1K 8099 pmchooks 1 1K 1 prison 4 1K 4 nexusdev 5 1K 5 entropy 2 1K 39 tcpfunc 1 1K 1 sctp_vrf 1 1K 1 vnet 1 1K 1 acpiintr 1 1K 1 pmc 1 1K 1 filecaps 3 1K 97 cpus 2 1K 2 vnet_data_free 1 1K 1 Per-cpu 1 1K 1 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 5661 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 464 sentinel 0 0K 0 jfsync 0 0K 0 jtrunc 0 0K 0 sbdep 0 0K 19 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 9 allocindir 0 0K 0 indirdep 0 0K 565 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 1815 sctp_iter 0 0K 12 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 12 sctp_aadr 0 0K 4 sctp_stri 0 0K 2 newreno data 0 0K 0 ip_msource 0 0K 0 ip_moptions 0 0K 1 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 tiDeviceHandle_t * malloc 0 0K 0 statfs 0 0K 1080 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 139 accf 0 0K 0 pts 0 0K 0 iov 0 0K 15698 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 616 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 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