Messages in this thread | | | Date | Mon, 4 Apr 2022 12:50:01 +0500 | Subject | Re: [PATCH 2/2] selftests/lkdtm: add config | From | Muhammad Usama Anjum <> |
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Hi Kees,
Any thoughts?
On 3/15/22 4:55 PM, Muhammad Usama Anjum wrote: > On 3/10/22 10:22 PM, Muhammad Usama Anjum wrote: >> On 3/10/22 12:23 AM, Kees Cook wrote: >>> On Fri, Feb 18, 2022 at 01:56:20AM +0500, Muhammad Usama Anjum wrote: >>>> Add config option which is needed for SLAB_LINEAR_OVERFLOW test. It >>>> needs KASAN enabled. >>> >>> I'd prefer this use the SLAB_DEBUG options -- KASAN is very heavy. >> I'll test it out and update in the next patch version. >> I've tested by removing KASAN and adding the following config: > CONFIG_SLAB=y > CONFIG_DEBUG_SLAB=y > > The result of SLAB_LINEAR_OVERFLOW test doesn't remain deterministic in > this config. The task never crashes and hence stack trace never appears. > When executed several times we get "Slab corruption" logs and after some > more tries whole kernel crashes. I've not used DEBUG_SLAB before and not > sure if this is the expected behavior. If we aren't sure, we can keep > KASAN turned on instead. >
-- Muhammad Usama Anjum
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