From: Peter Xu <peterx@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: Thomas Huth <thuth@redhat.com>,
qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
David Hildenbrand <david@redhat.com>,
Patrick Venture <venture@google.com>,
Peter Foley <pefoley@google.com>
Subject: Re: [PATCH] system/physmem: Silence warning from ubsan
Date: Tue, 29 Jul 2025 15:21:46 -0400 [thread overview]
Message-ID: <aIkfSris9vanaS41@x1.local> (raw)
In-Reply-To: <e19e5442-1479-43b3-a232-b8587c79caed@linaro.org>
On Mon, Jul 28, 2025 at 08:43:47PM +0200, Philippe Mathieu-Daudé wrote:
> Cc'ing Patrick & Peter for similar patch:
> https://lore.kernel.org/qemu-devel/aCUDxEQVACn5CY8f@x1.local/
This version seems to work.
>
> On 28/7/25 19:25, Thomas Huth wrote:
> > From: Thomas Huth <thuth@redhat.com>
> >
> > When compiling QEMU with --enable-ubsan there is a undefined behavior
> > warning when running the bios-tables-test for example:
> >
> > .../system/physmem.c:3243:13: runtime error: applying non-zero offset 262144 to null pointer
> > #0 0x55ac1df5fbc4 in address_space_write_rom_internal .../system/physmem.c:3243:13
I can trigger this by as simple as "./qemu-system-x86_64 -accel kvm". I
queued it, thanks.
--
Peter Xu
next prev parent reply other threads:[~2025-07-29 21:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-28 17:25 [PATCH] system/physmem: Silence warning from ubsan Thomas Huth
2025-07-28 18:43 ` Philippe Mathieu-Daudé
2025-07-29 19:21 ` Peter Xu [this message]
2025-07-28 18:44 ` David Hildenbrand
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