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| author | Alex Bennée | 2020-07-24 08:45:01 +0200 |
|---|---|---|
| committer | Alex Bennée | 2020-07-27 10:41:18 +0200 |
| commit | 2667e069e7b5807c69f32109d930967bc1b222cb (patch) | |
| tree | 7b24dbe48c14f5e0c2c8809dcfa359ef679f1aa0 /python | |
| parent | target/i386: floatx80: avoid compound literals in static initializers (diff) | |
| download | qemu-2667e069e7b5807c69f32109d930967bc1b222cb.tar.gz qemu-2667e069e7b5807c69f32109d930967bc1b222cb.tar.xz qemu-2667e069e7b5807c69f32109d930967bc1b222cb.zip | |
linux-user: don't use MAP_FIXED in pgd_find_hole_fallback
Plain MAP_FIXED has the undesirable behaviour of splatting exiting
maps so we don't actually achieve what we want when looking for gaps.
We should be using MAP_FIXED_NOREPLACE. As this isn't always available
we need to potentially check the returned address to see if the kernel
gave us what we asked for.
Fixes: ad592e37dfc ("linux-user: provide fallback pgd_find_hole for bare chroots")
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200724064509.331-9-alex.bennee@linaro.org>
Diffstat (limited to 'python')
0 files changed, 0 insertions, 0 deletions