On arch ia64 js engine is asserting at: Assertion failure: isPageAligned(size) (tip/js/src/yarr/PageAllocation.h:103 static WTF::PageAllocation WTF::PageAllocation::allocate(size_t, WTF::OSAllocator::Usage, bool, bool)) Called with following parameters: WTF::PageAllocation::allocate (size=4096, usage=UnknownUsage, writable=true, executable=false) From: http://mxr.mozilla.org/mozilla-central/source/js/src/yarr/PageBlock.h#41 The isPageAligned check use systemPageSize() which returns 0x4000, size is 0x1000. The check !(size & (pageSize() - 1)) fails because of that.
FWIW, I think there are much more places in the code that assume a page size of 4KB.
Created attachment 555079 [details] [diff] [review] ia64 assert patch 0.1 Tested attached patch with ia64 and together with patches from: https://bugzilla.mozilla.org/show_bug.cgi?id=589735 works just fine.
Please put a checkin comment describing what the patch does either in the patch or in the bug?