Description of problem:
1. By design, NVML does not support any 32-bit architecture.
2. Due to dependency on xmmintrin.h and because of using some inline assembly, it builds only for x86_64 at the moment. Other 64-bit architectures could also be supported, if only there is a request for that, and if somebody provides the arch-specific implementation of the low-level routines for flushing to persistent memory.
This bug appears to have been reported against 'rawhide' during the Fedora 25 development cycle.
Changing version to '25'.
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This bug appears to have been reported against 'rawhide' during the Fedora 28 development cycle.
Changing version to '28'.
This bug appears to have been reported against 'rawhide' during the Fedora 30 development cycle.
Changing version to '30'.
We (Intel) generally don't port software to foreign architectures by our own efforts, merely accept and review external patches. Yet, PMDK already has support for ARM64 -- it compiles but doesn't (out of the box) work, and superficial investigation suggests that it's a problem with dependencies rather than PMDK itself.
* valgrind crashes with SIGILL upon encountering any cache flushes, even those supposed to be supported by any 64-bit ARM machine. A very preliminary patch is at https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=930708;filename=0001-Fix-SIGILL-on-dcache-flushes-on-arm64.patch;msg=5
* valgrind reports false positives in helgrind and drd tests
* gcc apparently miscompiles (or possibly reveals a bug/undefined behaviour?) parts of vecx-related code at -O2 or higher. This can be avoided by building with clang or by lowering gcc's optimization level to -O1, -O0 or -Og.
(I'm posting these findings in case someone is willing to expend effort to fix the above issues.)
These issues seem to have been fixed -- at least, the testsuite passes. Still, I'm not aware of any ARM64 hardware that supports real (non-simulated) persistent memory, thus enabling this support in Fedora/Red Hat is not exactly a priority. If someone wishes to drive this effort, at least some more extensive testing would be a good idea.
This bug appears to have been reported against 'rawhide' during the Fedora 32 development cycle.
Changing version to 32.