Bug#902635: qtscript-opensource-src: Please include patch to workaround memory issues on sparc64
On 06/29/2018 07:32 PM, Lisandro Damián Nicanor Pérez Meyer wrote:
> Point is: is this a fix or papering over the real problem? I would like to
> know *for sure* that I'm not applying a hack with this patch. In other words:
> why it should use 32bits instead of 64?
It's a workaround because the 64-bit tagged pointers assume a 48 bit virtual
address space as on x86_64 while SPARC has a 52-bit virtual address space.
And since the Linux kernel allocates memory from top to bottom, any tagged
pointers will get mangled on sparc64.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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