[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: Increasing domain memory beyond initial maxmem
Hi Marek, On 31.03.22 14:36, Marek Marczykowski-Górecki wrote: On Thu, Mar 31, 2022 at 02:22:03PM +0200, Juergen Gross wrote:Maybe some kernel config differences, or other udev rules (memory onlining is done via udev in my guest)? I'm seeing: # zgrep MEMORY_HOTPLUG /proc/config.gz CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG=y # CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512I have: # zgrep MEMORY_HOTPLUG /proc/config.gz CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512 Not sure if relevant, but I also have: CONFIG_XEN_UNPOPULATED_ALLOC=y on top of that, I have a similar udev rule too: SUBSYSTEM=="memory", ACTION=="add", ATTR{state}=="offline", ATTR{state}="online" But I don't think they are conflicting.What type of guest are you using? Mine was a PVH guest.PVH here too. Would you like to try the attached patch? It seemed to work for me. Juergen Attachment:
0001-xen-balloon-fix-page-onlining-when-populating-new-zo.patch Attachment:
OpenPGP_0xB0DE9DD628BF132F.asc Attachment:
OpenPGP_signature
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