Le 11/05/2022 à 09:25, Paul Mackerras a écrit : > [Vous ne recevez pas souvent de courriers de la part de pau...@ozlabs.org. > D?couvrez pourquoi cela peut ?tre important ? l'adresse > https://aka.ms/LearnAboutSenderIdentification.] > > This patch series implements KASAN on 64-bit POWER with radix MMU, > such as POWER9 or POWER10. Daniel Axtens posted previous versions of > these patches, but is no longer working on KASAN, and I have been > asked to get them ready for inclusion. > > Because of various technical difficulties, mostly around the need to > allow for code that runs in real mode, we only support "outline" mode > (as opposed to "inline" mode), where the compiler adds a call to > a checking procedure before every store to memory. > > The main patch is still marked [RFC] because of known deficiencies, > specifically that the kernel will crash on boot on a HPT system, and > that out-of-bounds accesses to module global data are not caught > (which leads to one of the KASAN tests failing). > > Comments welcome. I may not have addressed all the comments about > previous versions of these patches; if so, then please just repeat > your comments.
Last patch is quite big. I think it would be worth splitting in several patches. A made a few suggestions while reviewing it. I think it could also be worth putting all the adding of no_instr and KASAN_SANITIZE := n in a preparatory patch. Also, your last patch includes v1 of "powerpc: make stack walking KASAN-safe" (https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210528074806.1311297-1-...@axtens.net/) while v2 was merged (https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210614120907.1952321-1-...@axtens.net/) Christophe
