Specifically, when invoked with argument 1 to get shared memory, lissajoux will hang in its first attempt to force the cookie returned by XCBImageSHMGet(). This call is hung inside XCBShmGetImage(), which is in turn hung in the bowels of XCB waiting for a reply which apparently never comes. Testing on Mac OS X 10.4 against both Apple's shipping XFree86-based server and the latest X.org server running on Bart's box. Exact same symptom as bug 5375, xcb_image.c:471 call to XCBShmGetImageReply(), but the hang does not occur running "lissajoux 1" on Linux-x86.
At some point, it stopped hanging. Recently, XCBShmGetImageReply() started returning a NULL reply (and not filling in an error) instead causing an assert in lissajoux. I'm not sure when this behavior changed. Possible commits: c29cb222f328baa17af3443695a29c245f4a9ba5
As it is now written, lissajoux 1 fails on both PPC and Intel Macs with this error output: ShmGetImageReply error 2 lissajoux.c:56: failed assertion `i' so endianness is not the problem. (2 is XCB_BAD_VALUE)
Ian Osgood, Do you still experience this issue with newer soft ? Please check the status of your issue. Or close this bug.
This has been a longstanding issue with XQuartz that nobody has ever cared enough to fix.
*** Bug 99218 has been marked as a duplicate of this bug. ***
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