On 08/19/2013 05:11 PM, Juan Casse wrote:
> Hi,
> 
> How is LFSR used?
> 
> When running the job file:
> 
> [global]
> readwrite=randwrite
> size=64k
> bs=8192
> random_generator=lfsr
> [test_job]
> 
> fio returns:
> 
> "fio: failed allocating random map. If running a large number of jobs,
> try the 'norandommap' option or set 'softrandommap'. Or give a larger
> --alloc-size to fio."
> 
> I tried the recommendations in the message above to no avail. I also
> tried other combinations of size, bs, and readwrite.

That's very odd. Is it a clean compile? The error isn't that great,
since it could trigger for LFSR init failure too. Can you try with the
attached patch?

-- 
Jens Axboe