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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash on xLarge memory allocation using bmalloc on 32bit systems"
href="https://bugs.webkit.org/show_bug.cgi?id=146440#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash on xLarge memory allocation using bmalloc on 32bit systems"
href="https://bugs.webkit.org/show_bug.cgi?id=146440">bug 146440</a>
from <span class="vcard"><a class="email" href="mailto:clopez@igalia.com" title="Carlos Alberto Lopez Perez <clopez@igalia.com>"> <span class="fn">Carlos Alberto Lopez Perez</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=146440#c3">comment #3</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=146440#c2">comment #2</a>)
> > [...]
> > Also, should disabling this optimization could make sense as a reasonable
> > workaround for 2.8.3 (similar to what it's done in <a class="bz_bug_link
bz_status_NEW "
title="NEW - [EFL][GTK][Windows] Fix the regression caused by the jsCStack branch merge"
href="show_bug.cgi?id=127777">bug 127777</a> with
> > -fno-omit-frame-pointer and -fno-tree-dce), would it be ok to propose a
> > patch for the CMake files for WebKitGTK+? (Adding Martin to CC)
>
> To be more precise, I was thinking perhaps of something like this:
>
> diff --git a/Source/cmake/OptionsCommon.cmake
> b/Source/cmake/OptionsCommon.cmake
> index 6691526..355d475 100644
> --- a/Source/cmake/OptionsCommon.cmake
> +++ b/Source/cmake/OptionsCommon.cmake
> @@ -99,6 +99,12 @@ endif ()
>
> string(TOLOWER ${CMAKE_HOST_SYSTEM_PROCESSOR}
> LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR)
> if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND
> "${LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR}" MATCHES "(i[3-6]86|x86)")
> + # The -ftree-sra optimization (implicit with -O2) causes crashes when
> + # allocating large chunks of memory using bmalloc on Intel 32bit.
> + # See <a class="bz_bug_link
bz_status_NEW "
title="NEW - Crash on xLarge memory allocation using bmalloc on 32bit systems"
href="show_bug.cgi?id=146440">https://bugs.webkit.org/show_bug.cgi?id=146440</a>
> + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-tree-sra")
> + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-tree-sra")
> +
> # To avoid out of memory when building with debug option in 32bit
> system.
> # See <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CMAKE] Fix build break because of memory exhausted."
href="show_bug.cgi?id=77327">https://bugs.webkit.org/show_bug.cgi?id=77327</a>
> set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "-Wl,--no-keep-memory
> ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")</span >
What about setting this flag only for the bmalloc source files at Source/bmalloc/CMakeLists.txt . Would it be enough?</pre>
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