Public bug reported:
We identified that at least ubuntu (let's take 15.10) does not boot if
installed in the 32bit architecture, and using the linux-next upstream
kernel 4.5 on it. This has been seen on other distributions as well.
We took both the official linux-next branch from kernel.org and the one from
kernel.ubuntu.com v4.5-rc7.
For the compilation process we went either with the 4.2 kernel config file from
the installed running kernel, and also built the config separately.
No errors have been encountered during the build or install process of the 4.5
kernel, however at boot, the VM will just hang.
There are no call traces or messages at boot to show any pottential issue.
Have you seen this on your end when testing the 32bit build?
Attaching the full serial log for reference, however I don't see any errors in
the kernel boot process.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: hyper-v
** Attachment added: "ubuntu_4.5_linux-next.log"
https://bugs.launchpad.net/bugs/1555786/+attachment/4595366/+files/ubuntu_4.5_linux-next.log
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https://bugs.launchpad.net/bugs/1555786
Title:
[Hyper-V] VM with ubuntu 32bit with linux-next does not boot
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