** Changed in: nfs-utils (Ubuntu)
Status: New => Invalid
** Description changed:
+ Dismiss this. It was due to a faulty firmware in a Netgear ProSAFE JGS516PE
switch discarding nfs over tcp traffic, while happily switching everything else.
+ No one else being affected pointed me to rethink the whole thing and see
other (unless much unlikely) possibilities.
+
*********************************************************************************
+
On all recent 3.2 and 3.8 kernels, nfs v3 shares cannot be mounted with
tcp protocol from several nfs clients.
for this test:
nfs-kernel server 1:1.2.5-3ubuntu3.1
kernel 3.2.0-58-generic
Some clients (eg. OUYA console) do mount the shares correctly, but many
others timeout and throw a Bad file descriptor error at the console
(tested from Android 4.3, iPad iOS 6 and Raspberry Pi Openelec Linux
3.10.9).
Even with all debug flags set to on for rpc, nfs and nfsd no output is
produced in syslog or kern.log for a command like the following sent from a RPi
client:
<code>
- OpenELEC:~/mount # mount -t nfs 192.168.200.3:/media/repo1 ~/mount/repo1 -o
nolock
+ OpenELEC:~/mount # mount -t nfs 192.168.200.3:/media/repo1 ~/mount/repo1 -o
nolock
mount: RPC: Remote system error - Connection timed out
mount: mounting 192.168.200.3:/media/repo2 on test2 failed: Bad file
descriptor
<code>
Wireshark shows some packets coming and going from the client, including
a portmap V2 DUMP call. When the V2 DUMP reply come back from the
server, it has the MOUNT V3 map entry set to NO, and a FIN,ACK packet
ends the dialog until the timeout arises at the client.
Meanwhile, using proto=UDP in the mount command from the RPi gets the share
mounted:
<code>
OpenELEC:~/mount # mount -t nfs 192.168.200.3:/media/repo1 ~/mount/repo1 -o
nolock,proto=udp
OpenELEC:~/mount #
</code>
and the corresponding debug info is written to the kern.log
<code>
Jan 3 18:35:58 Zuncho kernel: [ 5613.283291] nfsd: exp_rootfh(/media/repo2
[ffff88031a87b0c0] *:sdb1/2)
Jan 3 18:35:58 Zuncho kernel: [ 5613.283296] nfsd: fh_compose(exp 08:11/2
///, ino=2)
Jan 3 18:35:58 Zuncho kernel: [ 5613.290406] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), count=48, busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.290410] svc: transport ffff8802fd35c000
served by daemon ffff8802ce434000
Jan 3 18:35:58 Zuncho kernel: [ 5613.290424] svc: server ffff8802ce434000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.290429] svc: got len=40
Jan 3 18:35:58 Zuncho kernel: [ 5613.290430] svc: transport ffff8802fd35c000
served by daemon ffff8802d045c000
Jan 3 18:35:58 Zuncho kernel: [ 5613.290440] svc: svc_authenticate (0)
Jan 3 18:35:58 Zuncho kernel: [ 5613.290444] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.290445] svc: calling dispatcher
Jan 3 18:35:58 Zuncho kernel: [ 5613.290447] nfsd_dispatch: vers 3 proc 0
Jan 3 18:35:58 Zuncho kernel: [ 5613.290450] svc: service ffff8802ce434000,
releasing skb ffff8801f3c88900
Jan 3 18:35:58 Zuncho kernel: [ 5613.290459] svc: server ffff8802d045c000,
pool 0, transport ffff8802fd35c000, inuse=3
Jan 3 18:35:58 Zuncho kernel: [ 5613.290465] svc: got len=-11
Jan 3 18:35:58 Zuncho kernel: [ 5613.290468] svc: server ffff8802d045c000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.290475] svc: socket ffff8802fd35c000
sendto([ffff8802ce6f6000 24... ], 24) = 24 (addr 192.168.200.40, port=829)
Jan 3 18:35:58 Zuncho kernel: [ 5613.290482] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), write_space busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.290486] svc: server ffff8802ce434000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.292130] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), count=104, busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.292135] svc: transport ffff8802fd35c000
served by daemon ffff8802ce434000
Jan 3 18:35:58 Zuncho kernel: [ 5613.292149] svc: server ffff8802ce434000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.292154] svc: got len=96
Jan 3 18:35:58 Zuncho kernel: [ 5613.292155] svc: transport ffff8802fd35c000
served by daemon ffff8802d045c000
Jan 3 18:35:58 Zuncho kernel: [ 5613.292165] svc: svc_authenticate (1)
Jan 3 18:35:58 Zuncho kernel: [ 5613.292172] RPC: Want update,
refage=120, age=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.292187] svc: server ffff8802d045c000,
pool 0, transport ffff8802fd35c000, inuse=3
Jan 3 18:35:58 Zuncho kernel: [ 5613.292193] svc: got len=-11
Jan 3 18:35:58 Zuncho kernel: [ 5613.292196] svc: server ffff8802d045c000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.292345] svc: calling dispatcher
Jan 3 18:35:58 Zuncho kernel: [ 5613.292349] nfsd_dispatch: vers 3 proc 19
Jan 3 18:35:58 Zuncho kernel: [ 5613.292353] nfsd: FSINFO(3) 20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000
Jan 3 18:35:58 Zuncho kernel: [ 5613.292356] nfsd: fh_verify(20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.292360] RPC: Want update,
refage=120, age=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.292724] found domain *
Jan 3 18:35:58 Zuncho kernel: [ 5613.292727] found fsidtype 6
Jan 3 18:35:58 Zuncho kernel: [ 5613.292728] found fsid length 16
Jan 3 18:35:58 Zuncho kernel: [ 5613.292731] Path seems to be </media/repo2>
Jan 3 18:35:58 Zuncho kernel: [ 5613.292732] Found the path /media/repo2
Jan 3 18:35:58 Zuncho kernel: [ 5613.292764] svc: service ffff8802ce434000,
releasing skb ffff8801f3c88400
Jan 3 18:35:58 Zuncho kernel: [ 5613.292804] svc: socket ffff8802fd35c000
sendto([ffff8802ce6f6000 80... ], 80) = 80 (addr 192.168.200.40, port=829)
Jan 3 18:35:58 Zuncho kernel: [ 5613.292813] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), write_space busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.292818] svc: server ffff8802ce434000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.293851] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), count=104, busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.293855] svc: transport ffff8802fd35c000
served by daemon ffff8802ce434000
Jan 3 18:35:58 Zuncho kernel: [ 5613.293869] svc: server ffff8802ce434000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.293876] svc: got len=96
Jan 3 18:35:58 Zuncho kernel: [ 5613.293878] svc: transport ffff8802fd35c000
served by daemon ffff8802d045c000
Jan 3 18:35:58 Zuncho kernel: [ 5613.293883] svc: svc_authenticate (1)
Jan 3 18:35:58 Zuncho kernel: [ 5613.293891] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.293892] svc: calling dispatcher
Jan 3 18:35:58 Zuncho kernel: [ 5613.293893] nfsd_dispatch: vers 3 proc 1
Jan 3 18:35:58 Zuncho kernel: [ 5613.293897] nfsd: GETATTR(3) 20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000
Jan 3 18:35:58 Zuncho kernel: [ 5613.293899] nfsd: fh_verify(20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.293911] svc: service ffff8802ce434000,
releasing skb ffff8801f3c88400
Jan 3 18:35:58 Zuncho kernel: [ 5613.293945] svc: socket ffff8802fd35c000
sendto([ffff8802ce6f6000 112... ], 112) = 112 (addr 192.168.200.40, port=829)
Jan 3 18:35:58 Zuncho kernel: [ 5613.293949] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.293951] svc: server ffff8802ce434000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.293954] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), write_space busy=1
Jan 3 18:35:58 Zuncho kernel: [ 5613.293956] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.293959] svc: server ffff8802d045c000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.293961] svc: got len=-11
Jan 3 18:35:58 Zuncho kernel: [ 5613.293963] svc: server ffff8802d045c000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.302966] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), count=104, busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.302971] svc: transport ffff8802fd35c000
served by daemon ffff8802d045c000
Jan 3 18:35:58 Zuncho kernel: [ 5613.303000] svc: server ffff8802d045c000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.303009] svc: got len=96
Jan 3 18:35:58 Zuncho kernel: [ 5613.303011] svc: transport ffff8802fd35c000
served by daemon ffff8802ce434000
Jan 3 18:35:58 Zuncho kernel: [ 5613.303019] svc: svc_authenticate (1)
Jan 3 18:35:58 Zuncho kernel: [ 5613.303028] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.303030] svc: calling dispatcher
Jan 3 18:35:58 Zuncho kernel: [ 5613.303031] nfsd_dispatch: vers 3 proc 19
Jan 3 18:35:58 Zuncho kernel: [ 5613.303035] nfsd: FSINFO(3) 20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000
Jan 3 18:35:58 Zuncho kernel: [ 5613.303037] nfsd: fh_verify(20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.303048] svc: service ffff8802d045c000,
releasing skb ffff8801f3c88100
Jan 3 18:35:58 Zuncho kernel: [ 5613.303084] svc: socket ffff8802fd35c000
sendto([ffff88031894a000 80... ], 80) = 80 (addr 192.168.200.40, port=829)
Jan 3 18:35:58 Zuncho kernel: [ 5613.303087] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.303089] svc: server ffff8802d045c000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.303104] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), write_space busy=1
Jan 3 18:35:58 Zuncho kernel: [ 5613.303107] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.303114] svc: server ffff8802ce434000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.303119] svc: got len=-11
Jan 3 18:35:58 Zuncho kernel: [ 5613.303122] svc: server ffff8802ce434000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304790] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), count=104, busy=0
Jan 3 18:35:58 Zuncho kernel: [ 5613.304794] svc: transport ffff8802fd35c000
served by daemon ffff8802ce434000
Jan 3 18:35:58 Zuncho kernel: [ 5613.304826] svc: server ffff8802ce434000,
pool 0, transport ffff8802fd35c000, inuse=2
Jan 3 18:35:58 Zuncho kernel: [ 5613.304834] svc: got len=96
Jan 3 18:35:58 Zuncho kernel: [ 5613.304836] svc: transport ffff8802fd35c000
served by daemon ffff8802d045c000
Jan 3 18:35:58 Zuncho kernel: [ 5613.304843] svc: svc_authenticate (1)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304852] svc: transport ffff8802fd35c000
busy, not enqueued
Jan 3 18:35:58 Zuncho kernel: [ 5613.304853] svc: calling dispatcher
Jan 3 18:35:58 Zuncho kernel: [ 5613.304855] nfsd_dispatch: vers 3 proc 1
Jan 3 18:35:58 Zuncho kernel: [ 5613.304858] nfsd: GETATTR(3) 20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000
Jan 3 18:35:58 Zuncho kernel: [ 5613.304861] nfsd: fh_verify(20: 00060001
023938e6 2e4ff78a 67292591 a64cf247 00000000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304873] svc: service ffff8802ce434000,
releasing skb ffff8801f3c88900
Jan 3 18:35:58 Zuncho kernel: [ 5613.304884] svc: server ffff8802d045c000,
pool 0, transport ffff8802fd35c000, inuse=3
Jan 3 18:35:58 Zuncho kernel: [ 5613.304889] svc: got len=-11
Jan 3 18:35:58 Zuncho kernel: [ 5613.304892] svc: server ffff8802d045c000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304908] svc: socket ffff8802fd35c000
sendto([ffff8802ce6f6000 112... ], 112) = 112 (addr 192.168.200.40, port=829)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304913] svc: server ffff8802ce434000
waiting for data (to = 900000)
Jan 3 18:35:58 Zuncho kernel: [ 5613.304915] svc: socket
ffff8802fd35c000(inet ffff8802f24ca680), write_space busy=0
</code>
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https://bugs.launchpad.net/bugs/1265876
Title:
Unable to mount nfs shares from RPi/Android/iPad clients using TCP
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