mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
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16 lines
685 B
Diff
16 lines
685 B
Diff
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--- a/third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp.orig 2017-01-05 20:50:56.329369189 +0000
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+++ b/third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp 2017-01-05 20:51:32.926099779 +0000
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@@ -242,6 +242,12 @@
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ASSERT(!(len & kSystemPageOffsetMask));
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#if OS(POSIX)
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int ret = madvise(addr, len, MADV_FREE);
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+ if (ret != 0 && errno == EINVAL) {
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+ // MADV_FREE only works on Linux 4.5+ . If request failed,
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+ // retry with older MADV_DONTNEED . Note that MADV_FREE
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+ // being defined at compile time doesn't imply runtime support.
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+ ret = madvise(addr, len, MADV_DONTNEED);
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+ }
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RELEASE_ASSERT(!ret);
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#else
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setSystemPagesInaccessible(addr, len);
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