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linux-yocto: Work around PAT issue on qemux86

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We have an issue with PAT handling on older processes with limited PAT bits,
see the patch description for the full problem. This replaces the runqemu
workaround with a kernel patch until we can get the kernel trees sorted
out and discuss a proper fix with upstream. It should be safe everywhere
so is applied unconditionally.

(From OE-Core rev: e00f0794a535c8e68ae1c87c8b01dd65645d570b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2016-02-14 09:25:34 +00:00
parent 6fb493aa1b
commit 94abdb2eea
3 changed files with 103 additions and 1 deletions
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2
scripts/runqemu-internal
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@@ -434,7 +434,7 @@ if [ "$MACHINE" = "qemux86" ]; then
fi
# Currently oprofile's event based interrupt mode doesn't work(Bug #828) in
# qemux86 and qemux86-64. We can use timer interrupt mode for now.
KERNCMDLINE="$KERNCMDLINE oprofile.timer=1 nopat"
KERNCMDLINE="$KERNCMDLINE oprofile.timer=1"
fi
if [ "$MACHINE" = "qemux86-64" ]; then