Date: Thu, 23 Sep 2021 15:56:22 -0400 From: Mark Johnston <markj@freebsd.org> To: Mateusz Guzik <mjguzik@gmail.com> Cc: Konstantin Belousov <kib@freebsd.org>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: df8dd6025af8 - main - amd64: stop using top of the thread' kernel stack for FPU user save area Message-ID: <YUzb5k27XAXBumnE@nuc> In-Reply-To: <CAGudoHGE9YHLTMtm9XuV7yqZVXbjb%2BDJNOUAkMHmeaDjYmQG6g@mail.gmail.com> References: <202109211721.18LHLFWM028927@gitrepo.freebsd.org> <CAGudoHGE9YHLTMtm9XuV7yqZVXbjb%2BDJNOUAkMHmeaDjYmQG6g@mail.gmail.com>
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On Thu, Sep 23, 2021 at 09:49:47PM +0200, Mateusz Guzik wrote: > On 9/21/21, Konstantin Belousov <kib@freebsd.org> wrote: > > The branch main has been updated by kib: > > > > URL: > > https://cgit.FreeBSD.org/src/commit/?id=df8dd6025af88a99d34f549fa9591a9b8f9b75b1 > > > > commit df8dd6025af88a99d34f549fa9591a9b8f9b75b1 > > Author: Konstantin Belousov <kib@FreeBSD.org> > > AuthorDate: 2021-09-13 21:05:47 +0000 > > Commit: Konstantin Belousov <kib@FreeBSD.org> > > CommitDate: 2021-09-21 17:20:15 +0000 > > > > amd64: stop using top of the thread' kernel stack for FPU user save > > area > > > > This causes KASAN to crash on boot: > > panic: ASan: Invalid access, 192-byte read at 0xffffffff84105f40, Try grabbing https://reviews.freebsd.org/D32057
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