linux-kernel - Re: [syzbot] general protection fault in PageHeadHuge

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Message-ID: <ff6b391-9ec3-56a3-694c-c1954bde146@google.com>
Date:   Sat, 24 Sep 2022 00:28:52 -0700 (PDT)
From:   Hugh Dickins <hughd@...gle.com>
To:     Nathan Chancellor <nathan@...nel.org>
cc:     Hugh Dickins <hughd@...gle.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Peter Xu <peterx@...hat.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Yang Shi <shy828301@...il.com>,
        Matthew Wilcox <willy@...radead.org>,
        syzbot <syzbot+152d76c44ba142f8992b@...kaller.appspotmail.com>,
        akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, llvm@...ts.linux.dev, ndesaulniers@...gle.com,
        songmuchun@...edance.com, syzkaller-bugs@...glegroups.com,
        trix@...hat.com
Subject: Re: [syzbot] general protection fault in PageHeadHuge

On Fri, 23 Sep 2022, Nathan Chancellor wrote:
> On Fri, Sep 23, 2022 at 05:14:38PM -0700, Hugh Dickins wrote:
> > 
> > But me, I cannot even get the latest linux-next to boot: next job.
> 
> Maybe I can save you a bisect:
> 
> https://lore.kernel.org/all/Yy4GoMMwiBaq3oJf@dev-arch.thelio-3990X/

Many thanks Nathan, yes, you did save me a bisect with that link.
And I managed to get a patch to revert the badness,
I'll reply there on that thread now.

Hugh