From: "Richard W.M. Jones" <rjones@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Daniel P. Berrange" <berrange@redhat.com>,
"Stefan Weil" <sw@weilnetz.de>,
"Richard Henderson" <richard.henderson@linaro.org>,
qemu-stable <qemu-stable@nongnu.org>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: Re: [PATCH] tcg/arm: Increase stack alignment for function generation
Date: Wed, 1 Sep 2021 21:24:43 +0100 [thread overview]
Message-ID: <20210901202443.GL26415@redhat.com> (raw)
In-Reply-To: <CAFEAcA_JiWFrtj8nyVuPio-qPmu2z4_V4mu1kXFSv-UPXXxPNA@mail.gmail.com>
On Wed, Sep 01, 2021 at 09:17:07PM +0100, Peter Maydell wrote:
> On Wed, 1 Sept 2021 at 19:51, Richard W.M. Jones <rjones@redhat.com> wrote:
> >
> > On Wed, Sep 01, 2021 at 07:41:21PM +0100, Peter Maydell wrote:
> > > Is the failure case short enough to allow -d ... logging to
> > > be taken? That's usually the most useful info, but it's so huge
> > > it's often not feasible.
> >
> > I can try -- what exact -d option would be useful?
>
> Depends what you're after. Personally I'm fairly sure I know
> what's going on, I'm just not sure what the right fix is.
Another question: We couldn't reproduce this even with the identical
ARM guest kernel + initrd + command line using qemu-system-arm
compiled for x86-64 host. This was a bit surprising! Was that bad
luck or is there some reason why this bug might not be reproducible
except on armv7 host? (Both cases use -machine accel=tcg).
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
next prev parent reply other threads:[~2021-09-01 20:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 16:44 [PATCH] tcg/arm: Increase stack alignment for function generation Richard W.M. Jones
2021-09-01 16:44 ` Richard W.M. Jones
2021-09-01 18:18 ` Peter Maydell
2021-09-01 18:30 ` Richard W.M. Jones
2021-09-01 18:41 ` Peter Maydell
2021-09-01 18:51 ` Richard W.M. Jones
2021-09-01 20:17 ` Peter Maydell
2021-09-01 20:24 ` Richard W.M. Jones [this message]
2021-09-02 7:36 ` Peter Maydell
2021-09-02 8:06 ` Richard W.M. Jones
2021-09-03 13:33 ` Richard Henderson
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