Kernel Panic in Ubuntu 16.04 netboot installer

[Tim Gardner]

On 04/14/2016 09:43 AM, Tim Gardner wrote:
> On 04/14/2016 05:49 AM, Dr. Johann Pfefferl wrote:
>> Hello,
>>
>> we are working with the Ubuntu 16.04 developer preview. Yesterday we
>> observed a kernel panic of the installer kernel on one of our machines.
>> The machine is of type
>>
>> Supermicro X10DRH LN4/X10DRH-CLN4, BIOS s1.0b 12/01/2015
>>
>> We are installing the machine via PXEboot with the netboot installer
>> system using the following kernel/initrd:
>>
>> dists/xenial/main/installer-amd64/20101020ubuntu446/images/netboot/ubuntu-installer/amd64/initrd.gz
>>
>> dists/xenial/main/installer-amd64/20101020ubuntu446/images/netboot/ubuntu-installer/amd64/linux
>>
>>
>> When using this version the kernel crashes (see attached log file). We
>> have also tried the version 447 instead of 446. This version shows
>> the same effect.
>>
>> Some time ago we worked with the installer version 441. This release
>> worked as expected.
>>
>> Someone out there knows what has changed? It seems that the kernel has a
>> problem with the harddisk IO system. In our machine the mpt3sas disk
>> controller is required to get access to the harddisks.
>>
>> If I should test some new stuff please let me know. Or if I can help you
>> in some other way to solve this issue contact me.
>>
>> Thank you for your help
>>    Dr. Johann Pfefferl
>>
>>
>>
>
> http://bugs.launchpad.net/bugs/1570441
>

Please add to the bug report the kernel version you are attempting to 
boot, and what was the last working version.

-- 
Tim Gardner tim.gardner at canonical.com