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Biederman" , Dmitry Vyukov Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 21 Oct 2020 at 22:52, Naresh Kamboju wrote: > > On Wed, 21 Oct 2020 at 22:35, Linus Torvalds > wrote: > > > > On Wed, Oct 21, 2020 at 9:58 AM Naresh Kamboju > > wrote: > > > > > > LTP mm mtest05 (mmstress), mtest06_3 and mallocstress01 (mallocstress) tested on > > > x86 KASAN enabled build. But tests are getting PASS on Non KASAN builds. > > > This regression started happening from next-20201015 nowards > > > > Is it repeatable enough to be bisectable? > > Yes. This is easily reproducible. > I will bisect and report here. The bad commit points to, commit d55564cfc222326e944893eff0c4118353e349ec x86: Make __put_user() generate an out-of-line call I have reverted this single patch and confirmed the reported problem is not seen anymore. - Naresh