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Re: [Xen-devel] qemu-upstream triggering OOM killer

>>> On 14.02.17 at 15:56, <anthony.perard@xxxxxxxxxx> wrote:
> On Fri, Feb 10, 2017 at 02:54:23AM -0700, Jan Beulich wrote:
>> Not so far. It appears to happen when grub clears the screen
>> before displaying its graphical menu, so I'd rather suspect an issue
>> with a graphics related change (the one you pointed out isn't).
> I tried to reproduce this, by limiting the amount of memory available to
> qemu using cgroups, but about 44MB of memory is enough to boot a guest
> (tried Ubuntu and Debian).

Okay, not a qemuu regression after all, but a libxc one. It just so
happens that qemut tries to allocate a much larger amount, which
triggers mmap() failure earlier and hence doesn't manage to trigger
the oom killer. Patch (almost) on its way.


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