Re: THP broken on OCTEON?

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Hi,

On Fri, May 27, 2016 at 05:03:06PM -0400, Joshua Kinard wrote:
> If the binaries on the initramfs are built to any of the MIPS-I to MIPS-IV
> ISAs, I can test this on my IP27/Onyx2 system as well, though I'll have to
> build an IP27 kernel and just use the initramfs.

I built them using --with-arch=octeon+ so they won't work on other HW.

But there isn't any magic in my binaries. If you have a working 64-bit
Linux MIPS system (with GCC and make) you can easily try my test case:

- compile Linux 4.6 with THP (always enabled) and 4KB page size

	(preferably using GCC >= 4.9.3)

- boot with the new kernel & log in

- execute the following commands:

	curl -O http://www.cpan.org/src/5.0/perl-5.22.2.tar.gz
	tar xf perl-5.22.2.tar.gz
	cd perl-5.22.2
	sh Configure -de -Dprefix=/usr -Dcc=gcc && make && make test

If this passes without odd crashes or hangs (which I highly doubt),
please post the output of:

	grep thp /proc/vmstat

A.




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