+Anatoly and Ferruh in direct address. Robin Jarry, May 15, 2025 at 12:32: > I recently updated to Fedora 42 that comes with GCC 15. > > When building with -fsanitize=address (libasan.so.8), it seems that > the --no-huge mode (along with --no-shconf) fails at initialization for > some obscure reason. > > "couldn't allocate memory due to IOVA exceeding limits of current DMA mask."
Hi Anatoly, Ferruh, all, Allow me to bump this. GCC 15 has been out for quite a while now and it seems that libasan cannot be used anymore with the DPDK memory allocator as it is. I have tracked the commit that introduced this warning up to 2018: https://git.dpdk.org/dpdk/commit/?id=165c89b84538f I would be much grateful if you could help. I don't know the internals of libasan, but I assume it shuffles mapped memory around and it conflicts with the DPDK allocator inner workings. I have found this libasan commit which "could" be related: https://github.com/llvm/llvm-project/commit/7ede1c497302 In fact, part of it was reverted a while after on macos because of suspected breakage: https://github.com/llvm/llvm-project/commit/4e332bba2f3a -- Robin > Driver does not carry cash.
