Thanks for the suggestions.
I've narrowed one of the issues down to WineEngGetGlyphOutline in dlls/gdi32/freetype.c.
The pitch is 6640 and the height is 53003. This means that a buffer of ~335Mb has been allocated and then memset.
This is where the slow down is occurring (because of the memset). I suspect the resultant crash is also because of this.
I would suggest that limits need to be placed on the maximum pitch and height.
I do not however believe that this is the root cause just one of the symptoms.
On 5 October 2011 18:37, Marcus Meissner
<marcus@jet.franken.de> wrote:
On Wed, Oct 05, 2011 at 04:53:18PM +0100, Damian Dixon wrote:
> Hi,
>
> I was attempting to use Wine 1.3.29 (in OpenSUSE 11.4 x86) and because of
> issues pulled the source from git last night and still have problems.
>
> I am having performance issues with DrawText (5 odd seconds to draw a simple
> string) and the occasional X Error and crash.
>
> The X Error is consistent and is as follows:
>
> fixme:advapi:SetSecurityInfo stub
> X Error of failed request: BadLength (poly request too large or internal
> Xlib length error)
> Major opcode of failed request: 151 (RENDER)
> Minor opcode of failed request: 17 (RenderCreateGlyphSet)
> Serial number of failed request: 41091
> Current serial number in output stream: 41571
> Process of pid=0023 has terminated
>
>
> The crash less consistent but is dependent upon the amount of text I attempt
> to draw.
>
> The last version I know this worked in was 1.1.39.
>
> I've a few things to still try out before I attempt to create an RBT.
To get a backtrace and be able to dump some datastructures, run with
WINEDEBUG=+synchronous wine foo.exe
This will bring it into the debugger once the condition happens.
CIao, MArcus