From: "Paul D. DeRocco" <pderocco@ix.netcom.com>
To: <yocto@yoctoproject.org>
Subject: How do I build an x32 Intel system?
Date: Sun, 3 Jan 2021 10:44:51 -0800 [thread overview]
Message-ID: <113956D0E12D407782FFFB70D620DEAC@PAULD> (raw)
I've been resurrecting an old Pyro project under Gatesgarth. It's an Intel
32-bit system that needs maximum speed, so I decided to try to build the
system and application as 64-bit, for more registers. It pretty much worked
on the first try, and is about 8% faster. Now I'm trying to do it as x32, to
see if that speeds it up even more.
Unable to find any specific instructions, I set the DEFAULTTUNE to
"core2-64-x32" in my BSP conf file. Also, in the old project I had tinkered
around with this a bit, and had found some kernel config settings somewhere,
so I tried using them again:
CONFIG_X86_X32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_BLOCK_COMPAT=y
Other than the first one, I don't know whether these are correct, or where I
originally got them, or if there's a stock .cfg file that does all this.
The system built fine, the SDK built fine, and my application built fine,
but when I boot, I get a kernel panic, preceded by some message about "kmod
busy with 50 threads for more than 5 seconds now".
Is there some instruction on how to do a proper x32 build? I couldn't find
one Googling. Barring that, do any of those kernel configs look bogus?
--
Ciao, Paul D. DeRocco
Paul mailto:pderocco@ix.netcom.com
next reply other threads:[~2021-01-03 18:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-03 18:44 Paul D. DeRocco [this message]
2021-01-04 11:05 ` [yocto] How do I build an x32 Intel system? morgan.hill
2021-01-05 18:54 ` Richard Purdie
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=113956D0E12D407782FFFB70D620DEAC@PAULD \
--to=pderocco@ix.netcom.com \
--cc=yocto@yoctoproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.