Hi Sergey,

>...
>> Looks like a problem which was fixed in 2.6.16.1: 
> 
> http://kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git;a=commitdiff;h=048eb7e760ef41bcfef09bbd223f18379d260c2c
> 
> (and you are apparently looking at the source where this bug is already
> fixed).

it looks like that is it.  Is the redhat kernel patched so that
more than PAGE_SIZE bytes can be written to a sysfs file in one
write call?  That would explain why the above patch is needed.
The current vanilla kernel code in fs/sysfs/file.c seems to limit
each write to PAGE_SIZE, and that was the behaviour I saw when I
last looked in detail at firmware data writing.

Keith, can you please try rebuilding your kernel with the above
patch.

All the best,

Duncan.


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