On Fri, Jul 3, 2015 at 2:32 AM, Mario Sanchez Prada <ma...@webkit.org> wrote:
> On 02/07/15 12:11, Mario Sanchez Prada wrote: > > [...] > > If you check my last comments in there, you will see that I found out > that > > passing -fno-tree-sra to gcc while compiling would reliably prevent the > > crash from happening, both in my use case and when using the URL above. > > > > Does anyone here have any idea why this could be the case? Any hint? > > > > While passing -fno-tree-sra could be an interesting temporary workaround > > (specially if constrained in scope to bmalloc only) for downstream, it > does > > feel like papering over the real issue, which could still be there in WK. > > 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? - R. Niwa
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