This bug was fixed in the package xen - 4.9.2-0ubuntu5
---
xen (4.9.2-0ubuntu5) disco; urgency=medium
* Fix FTBS in Eoan (LP: #1823441). Except the last two changes, these are
all cherry picks from Xen upstream to handle gcc8 and gcc9 changes.
-
@Andreas, it seems so but it is the same thing as for Eoan.
Unfortunately this required a build in Eoan and then to be copy-fwd. So
it is the very same bits in both cases.
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Was the sru for disco released before eoan's?
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https://bugs.launchpad.net/bugs/1851091
Title:
Fresh Eoan upgrade fails to boot dom0 with message "decoding failed"
(kernel
Was the sru for disco released before eoan's?
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Title:
Fresh Eoan upgrade fails to boot dom0 with message "decoding failed"
(kernel 5.3.0)
To
This bug was fixed in the package xen - 4.9.2-0ubuntu5
---
xen (4.9.2-0ubuntu5) disco; urgency=medium
* Fix FTBS in Eoan (LP: #1823441). Except the last two changes, these are
all cherry picks from Xen upstream to handle gcc8 and gcc9 changes.
-
** Changed in: xen (Ubuntu Eoan)
Status: In Progress => Fix Committed
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Title:
Fresh Eoan upgrade fails to boot dom0 with message
** Tags removed: verification-needed verification-needed-disco
** Tags added: verification-done verification-done-disco verification-done-eoan
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This bug was fixed in the package xen - 4.9.2-0ubuntu6
---
xen (4.9.2-0ubuntu6) focal; urgency=medium
* Build-depend on python2-dev.
* Depend on python2.
* Build using python2.
* Build-depend on lmodern.
-- Matthias Klose Mon, 13 Jan 2020 14:51:35 +0100
** Changed in:
Based on my testing with fresh installs of both Disco and Eoan the
4.9.2-0ubuntu5 version fixes the problem.
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Title:
Fresh Eoan upgrade fails to
Hello David, or anyone else affected,
Accepted xen into disco-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/xen/4.9.2-0ubuntu5 in
a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
** Description changed:
+ [SRU Justification]
+
+ IMPORTANT NOTE: See comment #14 (must upload to Disco and copy forward
+ to newer releases with binaries)
+
+ [Impact]
+
+ Due to a kernel change, it is impossible to bring up a Eoan or later
+ kernel as dom0 (the hypervisor starts and then
** Changed in: xen (Ubuntu Disco)
Status: Fix Committed => In Progress
** Changed in: xen (Ubuntu Eoan)
Status: Confirmed => In Progress
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Sorry for a silly question, but can I expect to receive a working Xen
version via apt update soon or should I try to downgrade to an older
Ubuntu Server version? (I tried to install 18.04LTS, but the installer
has some kind of a bug and can't find my NVMe disks..) Thanks!
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xen (Ubuntu Eoan)
Status: New => Confirmed
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Title:
I managed to build a working xen.efi on eoan with the following commits
from the xen git tree:
6561994b87af3e9cd28ee99c42e8b2697621687d (lz4 fix)
14b62ab3e5a79816edfc6dd3afce1bb68c106ac5 (lz4 fix)
45342cd88d564a7da2dfbbc921898805008b0b6c (gcc 9 fix)
2effc2f131145fdd40352085c11adb1e17164135 (gcc 9
** Changed in: xen (Ubuntu Disco)
Status: New => Fix Committed
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Title:
Fresh Eoan upgrade fails to boot dom0 with message "decoding
Tested from a PPA build on 2 hosts (one Intel and on AMD based) running
Eoan:
# apt-cache policy xen-hypervisor-4.9-amd64
xen-hypervisor-4.9-amd64:
Installed: 4.9.2-0ubuntu4
Candidate: 4.9.2-0ubuntu4
Version table:
*** 4.9.2-0ubuntu4 500
500 http://ppa.launchpad.net/smb/eoan/ubuntu
I was able to find the Xen changes which fix the decoding matter. Right
now there is also work needed to work around issues when compiling with
gcc-8 (and gcc-9). I got the compiling side fixed, too. Unfortunately
the result, when compiling with gcc-9, is a non-working hypervisor. In
my tests that
I have talked with Stefan Bader (subscribed) and he confirmed that it is
recently rather broken.
I'm not sure he'll get to it, but lets assign to him to be clear on what this
bug would wait for.
** Changed in: xen (Ubuntu)
Assignee: (unassigned) => Stefan Bader (smb)
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Maurice: unfortunately I can't test playing with these config options
because I've given up and downgraded this machine. But thanks for
posting. It will be interesting to see if someone can get it work.
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Unfortunately, I stumbled on this same problem.
What I see is that all but two Kernel configuration items are the same across
multiple kernel versions. The two items that have changed are:
CONFIG_XEN_SELFBALLOONING=y (not sure why this has gone away)
CONFIG_XEN_TMEM=m
These two are missing in
Just attempted OP's advice and downgraded my kernel to 5.0.0.xx and Xen
4.9 boots, albeit with no ethernet support (I assume I need a backported
driver, or to install the version of Xen that came with 19.04). So this
is definitely a problem with the new Eoan kernel, and it affects the
current git
Looks like Xen is completely broken in Eoan. This should get some
attention from Xen maintainers...
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Title:
Fresh Eoan upgrade fails to boot
Can confirm, upgraded to Ubuntu 19.10, had installed all new kernel
images from the Eoan apt repository and then pulled in Xen and was
greeted to "Error: Decoding Failed" for Dom0. I as with the others,
attempted to use a GZIP'd initramfs and failed.
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Has anybody found a workaround?
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Title:
Fresh Eoan upgrade fails to boot dom0 with message "decoding failed"
(kernel 5.3.0)
To manage
Got the same after clear install of 19.10 release with xen. "apt
update;apt upgrade" didn't help
** Attachment added: "IMG_20191108_155226.jpg"
https://bugs.launchpad.net/ubuntu/+source/xen/+bug/1851091/+attachment/5303704/+files/IMG_20191108_155226.jpg
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xen (Ubuntu)
Status: New => Confirmed
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Title:
Fresh
Thanks for filing this bug in Ubuntu.
Subscribing Stefan Bader, who has handled xen uploads/bugs in the past,
to see if he has any insights.
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Thanks for filing this bug in Ubuntu.
Subscribing Stefan Bader, who has handled xen uploads/bugs in the past,
to see if he has any insights.
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I should add two comments:
- I can boot in non-xen ubuntu with the same kernel that doesn't work as
dom0.
- Since I found reports of "decoding failed" issues due to the change to
lz4 compression in 19.10, I tried changing back to gzip compression in
/etc/initramfs-tools/initramfs.conf (and
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