Bug 1385306

Summary: Fedora 25 x686 on the top of VirtualBox, on the top of VMWorkstation
Product: [Fedora] Fedora Reporter: niemand <nobodyless>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 25CC: extras-qa, gansalmon, ichavero, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, nobodyless
Target Milestone: ---Flags: nobodyless: needinfo? (extras-qa)
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Story Points: ---
Clone Of: Environment:
Last Closed: 2016-10-20 11:44:46 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description niemand 2016-10-16 06:39:58 UTC 
Description of the problem:
http://www.forums.fedoraforum.org/showpost.php?p=1773190&postcount=4

Version-Release number of selected component (if applicable):
kernel 4.8.1-1.fc25.i686

How reproducible:
Run kernel 4.8.1-1.fc25.i686 on the top of VMWorkstation 12.5

Actual results:
http://www.forums.fedoraforum.org/showpost.php?p=1773190&postcount=4

Expected results:
Without/sans Oops!

Additional info:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1628686

Thank you,
_nobody_
Comment 1 niemand 2016-10-20 07:23:32 UTC 
Here is the update on this bug. Four use cases:

[1] With kernel 4.8.1-1.fc25.i686, this bug is present when number of virtual CPUs is 1.
[2] With kernel 4.8.1-1.fc25.i686, this bug is NOT present when number of virtual CPUs are 4.
[3] With kernel 4.8.2-300.fc25.i686, this bug is NOT present when number of virtual CPUs is 1.
[4] With kernel 4.8.2-300.fc25.i686, this bug is NOT present when number of virtual CPUs are 4.

This issue is (magically) solved. I need the following:
(1) Root Cause of the problem (what was wrong with use case [1])?
(2) Solution for (1)!

Thank you!
_nobody_
Comment 2 Josh Boyer 2016-10-20 11:44:46 UTC 
To be perfectly honest, nobody is going to look at this bug.  The combination of multiple virtualization technologies that are not KVM combined with a 32-bit kernel means this is literally the lowest bug on the priority list.

We appreciate the report, but we wanted to set expectations accordingly.  We are glad you have found a workaround.
Comment 3 niemand 2016-10-20 17:14:09 UTC 
Hello Josh (Boyer),

I do agree on what you have wrote here. I also declare Case Closed.

But in this regards, I wrote the new bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1387361

Good luck on this one (you'll need it)! ;-)
_nobody_