And a few hours after attempting the mount, the nfs client machine
crashes.
ddb{0}> trace
_rb_remove+0x410 (ffffffff81680938,10,9800000072fefe00,9cea4ea0ecf5d48d)
ra 0x
ffffffff8152cd6c sp 0x9800000070abb8c0, sz 80
nfs_reclaim+0xd4
(ffffffff81680938,baf1c74d8eb930fe,9800000072fefe00,9cea4ea0ec
f5d48d) ra 0xffffffff813603b0 sp 0x9800000070abb910, sz 48
VOP_RECLAIM+0x58
(98000000783eb100,980000006ddcb458,b14959ac05d745b0,9cea4ea0ec
f5d48d) ra 0xffffffff814373f8 sp 0x9800000070abb940, sz 32
vclean+0x1e0
(98000000783eb100,980000006ddcb458,b14959ac05d745b0,7e6f8c30bd537b
a0) ra 0xffffffff81436140 sp 0x9800000070abb960, sz 64
vgonel+0x90
(98000000783eb100,980000006ddcb458,58214ba26f7e0fa7,7e6f8c30bd537ba
0) ra 0xffffffff81435b84 sp 0x9800000070abb9a0, sz 48
getnewvnode+0x2c4
(98000000783eb100,980000006ddcb458,58214ba26f7e0fa7,7e6f8c30b
d537ba0) ra 0xffffffff814cbdc4 sp 0x9800000070abb9d0, sz 96
ffs_vget+0x12c
(98000000783eb100,980000006ddcb458,9800000070abbb50,d46e17e02d47
d343) ra 0xffffffff815940b4 sp 0x9800000070abba30, sz 160
ufs_lookup+0xbf4
(98000000783eb100,560f2f8434d18f72,9800000070abbb50,d46e17e02d
47d343) ra 0xffffffff8135f1d4 sp 0x9800000070abbad0, sz 240
VOP_LOOKUP+0x4c
(9800000076e73128,9800000070abbd68,9800000070abbd98,3db6cc757bc
7a478) ra 0xffffffff81454724 sp 0x9800000070abbbc0, sz 48
vfs_lookup+0x3dc
(9800000076e73128,9aa6ea298f17098e,9800000070abbd98,3db6cc757b
c7a478) ra 0xffffffff81453e48 sp 0x9800000070abbbf0, sz 160
namei+0x340
(9800000076e73128,6fd7f90c66a50b47,9800000070abbd98,3db6cc757bc7a47
8) ra 0xffffffff814f0414 sp 0x9800000070abbc90, sz 160
dofstatat+0x94
(9800000076e73128,6fd7f90c66a50b47,9800000070abbd98,3db6cc757bc7
a478) ra 0xffffffff814f0540 sp 0x9800000070abbd30, sz 352
sys_fstatat+0x40
(9800000076e73128,6fd7f90c66a50b47,9800000070abbd98,8c38360bcc
b05d3a) ra 0xffffffff81212848 sp 0x9800000070abbe90, sz 16
itsa+0x1110
(9800000076e73128,6fd7f90c66a50b47,9800000070abbd98,8c38360bccb05d3
a) ra 0xffffffff812116e4 sp 0x9800000070abbea0, sz 240
trap+0x1f4
(9800000076e73128,d24999a5c0ce69f4,9800000070abbd98,8c38360bccb05d3a
) ra 0xffffffff81157a38 sp 0x9800000070abbf90, sz 64
u_general+0xd8
(9800000076e73128,d24999a5c0ce69f4,9800000070abbd98,25b5579648) r
a 0x0 sp 0x9800000070abbfd0, sz 0
User-level: pid 36282
On 2025-04-22 11:53, David Diggles wrote:
Is exporting mfs not supported?
Substitute for a ffs filesystem and the below works, but not when it's
mfs. Am I likely to have the same problem with tmpfs?
root@charlie ~:1# showmount -e nfshost
Exports list on nfshost:
/ramdisk charlie
root@charlie ~:0# rpcinfo -p nfshost
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100005 1 udp 931 mountd
100005 3 udp 931 mountd
100005 1 tcp 789 mountd
100005 3 tcp 789 mountd
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
root@charlie ~:0# ssh nfshost df -h /ramdisk
Filesystem Size Used Avail Capacity Mounted on
mfs:73041 2.9G 2.0K 2.8G 1% /ramdisk
root@charlie ~:0# ssh nfshost cat /etc/exports
/ramdisk -alldirs=root -maproot=root charlie
root@charlie ~:0# mount nfshost:/ramdisk /ramdisk
mount_nfs: /ramdisk: Input/output error
