[webkit-dev] Crash on xLarge memory allocation using bmalloc on 32bit systems

Mario Sanchez Prada mario at webkit.org
Fri Jul 3 03:10:35 PDT 2015

On 03/07/15 10:47, Ryosuke Niwa wrote:
> On Fri, Jul 3, 2015 at 2:32 AM, Mario Sanchez Prada <mario at webkit.org
> [...]
>     FWIW, I've tried reducing the scope of this flag to bmalloc but the crash
>     was still there. However, passing it instead for WebCore only did "fix" the
>     situation, so perhaps the problem is not strictly related to bmalloc, but to
>     something else in the graphics subsystem?
>     I could also be a bug on GCC, though.
> Perhaps you can compare two diassembled bmalloc code with or without
> -fno-tree-sra since bmallc is a fairly small project?

Not sure that would be useful, since enabling or disabling that -ftree-sra
while building bmalloc does not make any difference wrt to this problem, but
perhaps I'm overlooking something.

The crash goes away when passing -fno-tree-sra for WebCore, unfortunately.


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