Wireless/wpa + nfs = no worky ?

[clockwork06]

So here is the problem. I recently switched to wpa2 psk/tkip. Its all working fairly well, except nfs. I have two nfs mounts that I use from my workstation to my laptop. One works, the other does not, the EXACT same config both client and server side. If I cable my laptop into my switch or my wireless router directly everything works great. Wirelessly however the one mount (media) is borking, hard.

I get a ton of the following in /var/log/messages and dmesg: (client side, server side is wired)

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eth0: host decrypted and reassembled frame did not fit skb

The config for nfs is as follows:

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/home/new            *(rw,sync,insecure,all_squash)
/home/old            *(rw,sync,insecure,all_squash)

I have tried async as well, no luck. Everything in both directories is owned by the same user, with the normal varied permissions. Client side I have the following in fstab:

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10.10.0.10:/home/old    /home/mnt/old   nfs             noauto,user,tcp 0 0
10.10.0.10:/home/new    /home/mnt/new   nfs             noauto,user,tcp 0 0

Everything else seems to work okay. I can do everything alright on old, but new just doesnt want to work. I have tried mounting it solo, moving files from it to old and they work fine. Plus it works okay when the laptop is wired.

[Cuardin]

Have you sniffed out the datastrteams with wireshark? Make sure you don't have alot of spam on the line, and then start grabbing the packets. That way you can see exactly what is happening. Now, nfs if probably not the easiest protocol to read by eye, but it might still give some usefull info.

[clockwork06]

Here is some further info. First its not limited to nfs like I originally thought it was. It happens with some web traffic (site never finished loading, random images dont display and so on). I am running 2.6.16 vanilla with the ipw2200-1.1.3 package from portage. The router is a linksys wrt54g (still running linksys firmware)

I now get the following errors showing up (by the dozens):

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eth0: host decrypted and reassembled frame did not fit skb
eth0: host decrypted and reassembled frame did not fit skb
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 000000018c5b recei
TSC 000000018c4e
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 000000018c5b recei
TSC 000000018c4f
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0
KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0
KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a141
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a142
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a151
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a152
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a153
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a154
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a155
TKIP: replay detected: STA=00:13:10:fd:c2:ab previous TSC 00000001a15e recei
TSC 00000001a156
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0
KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0
KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0
KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473
N/A: Michael MIC verification failed for MSDU from 00:13:10:fd:c2:ab keyidx=
eth0: MSDU decryption/MIC verification failed (SA=00:13:10:fd:c2:ab keyidx=0

And so on. I still get the additional error as well as you can see. That is the correct mac of my ap.

[Cuardin]

KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1473

This worries me a bit. It actually looks real bad. Like "bug in kernel"-bad.

Unfortunately, I am coming up blank when it comes to constructive ideas. Sorry, I have no idea what is going on.

[clockwork06]

No worries, to me its more a frustration than anything since it works 90% of the time (minus that NFS share, which works less than 1% of the time).

I have checked everything I know how to check, MTU, sniffed the line (nothing respondes) tried different versions and so on.

[Dinini]

First a really stupid question, did you enable michael encryption in the kernel? If it's a module, is it loaded into memory? That's the sort of messages I see when the encryption algo desired isn't present and it's having to fall back to another.