On Fri, Oct 11, 2024 at 11:12 AM Sabyrzhan Tasbolatov <snovitoll@xxxxxxxxx> wrote: > > This has been tested on: > - x86_64 with CONFIG_KASAN_GENERIC > - arm64 with CONFIG_KASAN_SW_TAGS > - arm64 with CONFIG_KASAN_HW_TAGS > > - arm64 SW_TAGS has 1 failing test which is in the mainline, > will try to address it in different patch, not related to changes in this PR: > [ 9.480716] # vmalloc_percpu: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1830 > [ 9.480716] Expected (u8)(__u8)((u64)(c_ptr) >> 56) < (u8)0xFF, but > [ 9.480716] (u8)(__u8)((u64)(c_ptr) >> 56) == 255 (0xff) > [ 9.480716] (u8)0xFF == 255 (0xff) > [ 9.481936] # vmalloc_percpu: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1830 > [ 9.481936] Expected (u8)(__u8)((u64)(c_ptr) >> 56) < (u8)0xFF, but > [ 9.481936] (u8)(__u8)((u64)(c_ptr) >> 56) == 255 (0xff) > [ 9.481936] (u8)0xFF == 255 (0xff) Could you share the kernel config that you use to get this failure? This test works for me with my config... > Here is my full console log of arm64-sw.log: > https://gist.githubusercontent.com/novitoll/7ab93edca1f7d71925735075e84fc2ec/raw/6ef05758bcc396cd2f5796a5bcb5e41a091224cf/arm64-sw.log > > - arm64 HW_TAGS has 1 failing test related to new changes > and AFAIU, it's known issue related to HW_TAGS: > > [ 11.167324] # copy_user_test_oob: EXPECTATION FAILED at > mm/kasan/kasan_test_c.c:1992 > [ 11.167324] KASAN failure expected in "unused = > strncpy_from_user(kmem, usermem, size + 1)", but none occurred > > Here is the console log of arm64-hw.log: > https://gist.github.com/novitoll/7ab93edca1f7d71925735075e84fc2ec#file-arm64-hw-log-L11208 I don't remember seeing this issue before, did you manage to figure out why this happens? Thank you for working on this!
