From: Greg KH <gregkh@linuxfoundation.org>
To: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: sashal@kernel.org, linuxppc-dev@lists.ozlabs.org, stable@vger.kernel.org
Subject: Re: Please apply commit 0828137e8f16 ("powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()") to v4.14.y, v4.19.y, v5.4.y, v5.7.y
Date: Wed, 26 Aug 2020 12:29:29 +0200 [thread overview]
Message-ID: <20200826102929.GA3356257@kroah.com> (raw)
In-Reply-To: <20200825224408.GB6060@mussarela>
On Tue, Aug 25, 2020 at 07:44:08PM -0300, Thadeu Lima de Souza Cascardo wrote:
> After commit 912c0a7f2b5daa3cbb2bc10f303981e493de73bd ("powerpc/64s: Save FSCR
> to init_task.thread.fscr after feature init"), which has been applied to the
> referred branches, when userspace sets the user DSCR MSR, it won't be inherited
> or restored during context switch, because the facility unavailable interrupt
> won't trigger.
>
> Applying 0828137e8f16721842468e33df0460044a0c588b ("powerpc/64s: Don't init
> FSCR_DSCR in __init_FSCR()") will fix it.
Now queued up, thanks.
greg k-h
next prev parent reply other threads:[~2020-08-26 10:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-25 22:44 Please apply commit 0828137e8f16 ("powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()") to v4.14.y, v4.19.y, v5.4.y, v5.7.y Thadeu Lima de Souza Cascardo
2020-08-26 10:29 ` Greg KH [this message]
2020-08-26 11:58 ` Michael Ellerman
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