Any updates on this?
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https://bugs.launchpad.net/bugs/1233466
Title:
Hot-Add Memory failing for lack of udev rule
Status in udev:
Unknown
Status in linux
> I would be happy to unconditionally turning hot-add on and SRU the
udev rule back to Ubuntu 14.04.
As I (and Kay) said, this is okay for an SRU, but unconditionally
second-guessing/changing the kernel defaults is just wrong and
inefficient too. For yakkety and onwards this *really* should be
** Patch added: "0001-Enable-CPU-and-RAM-hotplug-on-QEMU.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1233466/+attachment/4680556/+files/0001-Enable-CPU-and-RAM-hotplug-on-QEMU.patch
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** Bug watch added: freedesktop.org Bugzilla #78478
https://bugs.freedesktop.org/show_bug.cgi?id=78478
** Also affects: linux via
https://bugs.freedesktop.org/show_bug.cgi?id=78478
Importance: Unknown
Status: Unknown
** Project changed: linux => udev
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I fail to come up with a use-case that just wants to add CPU/RAM without
onlining it sooner or later. For virtual environments, you add CPU/RAM
to use it and therefore want to online it once it appears. In a cloud
environment (like ProfitBricks), it makes no sense to add CPU/RAM
without using it,
Maintaining an ever-growing list of vendors is error-prone and TBH quite
silly. Are there any CPUs where we *don't* want hot-add? If not, why
can't the kernel just default to enabling this, instead of userspace
unconditionally turning this on? But if hot-add is supposed to work
everywhere, then
** Tags added: patch
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https://bugs.launchpad.net/bugs/1233466
Title:
Hot-Add Memory failing for lack of udev rule
Status in linux package in Ubuntu:
Can we also enable the hotplug udev rules for QEMU guests? See the
attached git format-patch.
** Patch added: "0001-Enable-CPU-and-RAM-hotplug-on-QEMU.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1233466/+attachment/4679035/+files/0001-Enable-CPU-and-RAM-hotplug-on-QEMU.patch
** CVE removed: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2013-2147
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https://bugs.launchpad.net/bugs/1233466
Title:
Hot-Add Memory failing for lack
Reopening the kernel task here. We've carried the temporary udev rule
workaround for three releases now; it seems we all agree that it's wrong
(unconditional unbreak my kernel rule) and makes things even worse
under memory pressure. Is there any better solution in sight? Thanks!
** Changed in:
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