From: Stefan Hajnoczi <stefanha@gmail.com>
To: Bug 1192344 <1192344@bugs.launchpad.net>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [Bug 1192344] [NEW] qemu crashes on unaligned extended disk reads
Date: Wed, 19 Jun 2013 11:01:30 +0200 [thread overview]
Message-ID: <20130619090130.GC24023@stefanha-thinkpad.muc.redhat.com> (raw)
In-Reply-To: <20130618212331.29660.6731.malonedeb@wampee.canonical.com>
On Tue, Jun 18, 2013 at 09:23:31PM -0000, Andrew McGowen wrote:
> When performing a BIOS extended disk read (INT 13H, AH=0x42), if the
> offset of the buffer destination in the DAP (disk address packet) is not
> dword-aligned (i.e. a multiple of 4), SeaBIOS attempts to execute code
> at non-mapped address 0xb4f53, causing QEMU to crash. I imagine it's a
> bug in the BIOS code, but it does cause QEMU to crash.
Can you post details on the "crash"? What is the error message?
Stefan
next prev parent reply other threads:[~2013-06-19 9:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-18 21:23 [Qemu-devel] [Bug 1192344] [NEW] qemu crashes on unaligned extended disk reads Andrew McGowen
2013-06-19 9:01 ` Stefan Hajnoczi [this message]
2013-06-19 14:00 ` [Qemu-devel] [Bug 1192344] " Andrew McGowen
2016-08-17 10:17 ` T. Huth
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=20130619090130.GC24023@stefanha-thinkpad.muc.redhat.com \
--to=stefanha@gmail.com \
--cc=1192344@bugs.launchpad.net \
--cc=qemu-devel@nongnu.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).