NFSv4 poops itself

Background:

Server: x86-64 dual core Intel, kernel 2.6.23-rc1 (my home fileserver)
	Exporting NFS/NFSv4 mounts.  Client count: 1  Uptime: 4 days

Client: x86-64 dual core Intel, kernel 2.6.23-rc1 (my main workstation)
	NFS mount setup:
	pretzel:/ on /g type nfs4 (rw,noatime,proto=tcp,addr=10.10.10.1)
	Uptime: 4 days

	Home directory mounted via NFSv4.

Problem:

My workstation has been happily talking to my file server for several days without incident. An hour ago, my numeric keypad stopping working (unrelated problem... USB or X bug?). The solution to the keypad problem is usually to log out of X and log back in, or worse case, reboot.

So, I log out, and log back in. At first, a few shell windows open and successfully initialize themselves (read bash profile over NFS, etc.) Then, as more shell windows open, things start hanging. I can easily switch to console and ssh to the fileserver, so it is clear this is an NFS hang.

No adverse messages at all on the client.

On the server, I see NFSv4 spamming dmesg with hundreds of thousands of messages:

Jul 27 08:20:53 pretzel kernel: NFSD: preprocess_seqid_op: old stateid!
Jul 27 08:21:24 pretzel last message repeated 167966 times
Jul 27 08:21:55 pretzel last message repeated 173628 times
Jul 27 08:21:55 pretzel kernel: NFSD: preprocess_seqid_op: old stateid!
Jul 27 08:22:26 pretzel last message repeated 171286 times
Jul 27 08:23:27 pretzel last message repeated 344461 times
Jul 27 08:23:30 pretzel last message repeated 18656 times

I rebooted the client, the problem disappeared, and everything is happy again... but clearly NFSv4 shat itself. And now I am worried this will happen again.

In all my quite-heavy use of NFSv4 I've never seen this behavior before, so I would call this a regression.

I always run vanilla linux-2.6.git self-built kernels on both client and server.

	Jeff


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: NFSv4 poops itself
    • From: Marc Dietrich <[email protected]>
  • Re: NFSv4 poops itself
    • From: Trond Myklebust <[email protected]>

• Prev by Date: [PATCH] perfctr_watchdog: do not BUG_ON() when MSR is unknown
• Next by Date: Re: [PATCH] MIPS: add smp_call_function_single()
• Previous by thread: [PATCH] perfctr_watchdog: do not BUG_ON() when MSR is unknown
• Next by thread: Re: NFSv4 poops itself
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]