LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Borislav Petkov <bp@suse.de>, Rik van Riel <riel@surriel.com>,
x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] x86 FPU changes for 5.2
Date: Tue, 7 May 2019 23:59:26 +0200 [thread overview]
Message-ID: <20190507215925.3wfs7mia5aesedr2@linutronix.de> (raw)
In-Reply-To: <CAHk-=wh4Cjb1qDj_VRW9W4d4n9WLksgMKF-roG8eCk_O0ZaEEg@mail.gmail.com>
On 2019-05-07 10:35:25 [-0700], Linus Torvalds wrote:
> Has this gone through lots of testing, particularly with things like
> FP signal handling and old machines that don't necessarily have
> anything but the most basic FP state (ie Pentium class etc)?
I tried it in qemu with incremental FPU capabilities so it went through
all the possible load/restore variants during signal handling. I had a
testcase which did SHA1 computation and a received a SIGALRM every
second. This caught some bugs, most of them were xsave/xsaves related
once the SHA1 result did not match. I tried something similar one the
8087 FPU.
I had the series in the v5.0-RT tree which resulted in the most recent
patch in that branch.
> Linus
Sebastian
next prev parent reply other threads:[~2019-05-07 21:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-07 13:26 Borislav Petkov
2019-05-07 17:35 ` Linus Torvalds
2019-05-07 17:59 ` Borislav Petkov
2019-05-07 20:12 ` Ingo Molnar
2019-05-07 21:59 ` Sebastian Andrzej Siewior [this message]
2019-05-07 17:55 ` pr-tracker-bot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190507215925.3wfs7mia5aesedr2@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=bp@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=riel@surriel.com \
--cc=torvalds@linux-foundation.org \
--cc=x86@kernel.org \
--subject='Re: [GIT PULL] x86 FPU changes for 5.2' \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).