From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: "xen-devel (xen-devel@lists.xenproject.org)"
<xen-devel@lists.xenproject.org>,
Paul Durrant <Paul.Durrant@citrix.com>
Subject: Re: debian stretch dom0 + xen 4.9 fails to boot
Date: Wed, 7 Jun 2017 10:05:54 -0400 [thread overview]
Message-ID: <2292d108-1211-3d52-00f5-2ee7c2eede88@oracle.com> (raw)
In-Reply-To: <5937D05A0200007800160288@prv-mh.provo.novell.com>
On 06/07/2017 04:07 AM, Jan Beulich wrote:
>>>> On 06.06.17 at 19:00, <boris.ostrovsky@oracle.com> wrote:
>> FWIW, one of machines in our test farm choked on this very patch. I
>> don't remember details now but essentially it turned out that syslinux
>> (we are pxe-booting) could not handle changes in ELF sections layout
>> (the way syslinux calculated how to load the binary into memory resulted
>> in overlap of some sort).
> There has always been an overlap between the main and the notes
> segment; there being only two segments I don't see any other
> potential for an overlap.
I realize this thread has progressed since yesterday but just to
clarify: I wasn't referring to overlap between Xen sections. It was
syslinux failing to fit sections of xen.gz, bzImage (and initramfs,
although I think mapping had already failed by the time syslinux got to
it) into e820 on that particular machine.
Because we are using rather old syslinux I figured it was something
specific to that version, which is why I didn't flag this as an issue.
Which, in the hindsight, was wrong.
-boris
> In fact I can't see anything other than size
> differences between a 4.8.1 and a 4.9 binary, plus of course the
> base address change resulting from Daniel's EFI/GrUB2 patches. So
> I'm rather puzzled as to what effect Jürgen's patch could have had
> on the behavior of any loader whatsoever.
>
> The only possibly misleading section I notice is .reloc, but that's
> present in xen-syms only, not in xen.gz. And again it's a result of
> Daniel's series, not Jürgen's patch.
>
> Jan
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next prev parent reply other threads:[~2017-06-07 14:06 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-06 14:32 debian stretch dom0 + xen 4.9 fails to boot Paul Durrant
2017-06-06 15:11 ` Jan Beulich
2017-06-06 15:51 ` Paul Durrant
2017-06-06 16:28 ` Paul Durrant
2017-06-06 17:00 ` Boris Ostrovsky
2017-06-07 8:07 ` Jan Beulich
2017-06-07 8:09 ` Paul Durrant
2017-06-07 8:19 ` Paul Durrant
2017-06-07 14:05 ` Boris Ostrovsky [this message]
2017-06-07 8:07 ` Paul Durrant
2017-06-07 8:27 ` Jan Beulich
[not found] ` <5937D4FF02000078001602F6@suse.com>
2017-06-07 9:03 ` Juergen Gross
2017-06-07 9:05 ` Paul Durrant
2017-06-07 9:09 ` Andrew Cooper
2017-06-07 10:36 ` Paul Durrant
2017-06-07 11:06 ` Paul Durrant
2017-06-07 11:57 ` Juergen Gross
2017-06-07 12:02 ` Paul Durrant
2017-06-07 12:13 ` Juergen Gross
2017-06-07 12:19 ` Jan Beulich
2017-06-07 12:26 ` Paul Durrant
2017-06-07 12:34 ` Jan Beulich
2017-06-07 11:50 ` Jan Beulich
2017-06-07 11:55 ` Paul Durrant
2017-06-07 12:00 ` Jan Beulich
2017-06-07 12:46 ` Paul Durrant
2017-06-07 12:55 ` Jan Beulich
2017-06-07 15:06 ` Paul Durrant
2017-06-07 15:33 ` Jan Beulich
2017-06-07 15:40 ` Paul Durrant
2017-06-07 15:52 ` Jan Beulich
2017-06-08 12:42 ` Paul Durrant
2017-06-08 12:46 ` Juergen Gross
2017-06-08 13:18 ` Jan Beulich
2017-06-08 13:24 ` Paul Durrant
2017-06-09 12:19 ` Paul Durrant
2017-06-09 13:05 ` Jan Beulich
2017-06-09 13:52 ` Boris Ostrovsky
2017-06-09 15:14 ` Paul Durrant
2017-06-09 15:41 ` Jan Beulich
2017-06-09 15:47 ` Paul Durrant
2017-06-09 15:58 ` Jan Beulich
2017-06-12 8:14 ` Paul Durrant
2017-06-12 10:40 ` Jan Beulich
2017-06-12 10:44 ` Paul Durrant
2017-06-12 10:53 ` Paul Durrant
2017-06-12 11:12 ` Jan Beulich
2017-06-12 12:05 ` Paul Durrant
2017-06-12 12:25 ` Paul Durrant
2017-06-12 13:54 ` Jan Beulich
2017-06-12 14:28 ` Paul Durrant
2017-06-12 14:43 ` Paul Durrant
2017-06-12 15:03 ` Paul Durrant
2017-06-12 15:07 ` Jan Beulich
2017-06-12 15:21 ` Paul Durrant
2017-06-06 17:40 ` Julien Grall
2017-06-07 8:05 ` Paul Durrant
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