Hi:
Thanks for responding.
>> And the kernel log says:
>> [13:37:37.766844] nfsd: Could not allocate memory read-ahead cache.
>
>What kernel version is this?
I am using kernel version 2.6.17.7.
> In the latest
>fs/nfsd/vfs.c:nfsd_racache_init(int cache_size):
>
> raparml = kcalloc(cache_size, sizeof(struct raparms), GFP_KERNEL);
>
> if (!raparml) {
> printk(KERN_WARNING
> "nfsd: Could not allocate memory read-ahead
>cache.\n");
> return -ENOMEM;
> }
>
>which is called from fs/nfsd/nfssvc.c:nfsd_svc() as:
>
> error = nfsd_racache_init(2*nrservs);
>
>where nrservs is the number of server threads. How many server threads
>are you
>trying to start, and how much memory do you have?
Yea, I have seen that codebase. The configuration file /etc/init.d/nfs creates 8 nfs threads:
root:Zeugma:/etc/init.d# ps -A |grep nfs
2202 ? 00:00:00 nfsd
2203 ? 00:00:00 nfsd
2204 ? 00:00:00 nfsd
2205 ? 00:00:00 nfsd
2206 ? 00:00:00 nfsd
2207 ? 00:00:00 nfsd
2208 ? 00:00:00 nfsd
2209 ? 00:00:00 nfsd
root:Zeugma:/etc/init.d# free
total used free shared buffers cached
Mem: 255372 34352 221020 0 2564 18720
-/+ buffers/cache: 13068 242304
Swap: 0 0 0
The funny thing is that the moment I enable nfsd filesystem, the problem seems to go away. Can you try and reproduce the problem by disabling nfsd filesystem in your system?
#> umount /proc/fs/nfsd
Ani
>
>--b.
>
>>
>> This issue is happening on an intel platform. However, this same
>operation succeeds on our mips platform (without nfsd filesystem). What
>is also interesting is that once I turn on /proc/fs/nfsd filesystem on
>Intel, the issue seems to go away.
>>
>> Several weeks back, I reported an issue regarding exportfs -a failure
>on an already exported filesystem when nfsd FS was not used. It turned
>out to be a bug in the nfsutils. Did we bump into another bug here? Is
>there no other option but to turn on nfsd filesystem?
>>
>> Thanks for whoever responds to this ...
>>
>> Cheers,
>>
>> Ani
>>
>>
>>
>> --
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