On 09/03/14 21:35, Mattia Dongili wrote:
On Sat, Mar 08, 2014 at 07:04:56AM +0000, Anton Ivanov wrote:
Package: user-mode-linux
Version: 3.2-2um-1+deb7u2+b1
Severity: grave
Tags: patch
Justification: causes non-serious data loss
Dear Maintainer,
This bug is perennial. If we go through old bugs with
"cannot reproduce" tag 50% of them are this one, the other
50% are the "you should not use pipe for interprocess IPC"
which we will submit shortly.
Manifestation of the problem - UML dies on startup for no
reason with a memory corruption message. Occurs only on
heavily loaded systems and usually when running a lot of
UMLs.
Thanks for the patch.
I have noticed that you submitted these patch-set (together with the
other two you sent here and more) upstream and they will be in the
stable branch.
The easiest path here is also to go through the stable release of
linux-source where uml is built from. I'll keep an eye on the stable
tree but it'd be very helpful if you could add the stable tree commit
ids once the patches get included. Same story for the other two bugs.
All 3 bugs have now patches submitted upstream. I have submitted our
other improvements as well.
While they do not make a speed daemon of uml userspace they get it
reasonably close to kvm. Kernel itself is now faster than qemu-kvm for
most networking stuff.
A.
Thanks!
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