Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-09 Thread Anshuman Khandual
On 09/04/2015 09:42 PM, Michael Roth wrote: > Quoting Nathan Fontenot (2015-09-04 10:49:18) >> On 09/04/2015 10:33 AM, Michael Roth wrote: >>> Quoting Nathan Fontenot (2015-09-03 13:50:59) On 09/01/2015 10:28 PM, Bharata B Rao wrote: > On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Ra

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-04 Thread Michael Roth
Quoting Nathan Fontenot (2015-09-04 10:49:18) > On 09/04/2015 10:33 AM, Michael Roth wrote: > > Quoting Nathan Fontenot (2015-09-03 13:50:59) > >> On 09/01/2015 10:28 PM, Bharata B Rao wrote: > >>> On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: > The hash table size allocated t

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-04 Thread Nathan Fontenot
On 09/04/2015 10:33 AM, Michael Roth wrote: > Quoting Nathan Fontenot (2015-09-03 13:50:59) >> On 09/01/2015 10:28 PM, Bharata B Rao wrote: >>> On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: The hash table size allocated to guest depends on the maxmem size. If the host isn

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-04 Thread Michael Roth
Quoting Nathan Fontenot (2015-09-03 13:50:59) > On 09/01/2015 10:28 PM, Bharata B Rao wrote: > > On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: > >> The hash table size allocated to guest depends on the maxmem size. > >> If the host isn't able to allocate the required hash table siz

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-03 Thread Nathan Fontenot
On 09/01/2015 10:28 PM, Bharata B Rao wrote: > On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: >> The hash table size allocated to guest depends on the maxmem size. >> If the host isn't able to allocate the required hash table size but >> instead allocates less than the optimal reque

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-02 Thread David Gibson
On Wed, Sep 02, 2015 at 08:58:54AM +0530, Bharata B Rao wrote: > On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: > > The hash table size allocated to guest depends on the maxmem size. > > If the host isn't able to allocate the required hash table size but > > instead allocates less t

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-09-01 Thread Bharata B Rao
On Mon, Aug 24, 2015 at 09:01:51AM +0530, Bharata B Rao wrote: > The hash table size allocated to guest depends on the maxmem size. > If the host isn't able to allocate the required hash table size but > instead allocates less than the optimal requested size, then it will > not be possible to grow

Re: [Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-08-24 Thread Anshuman Khandual
On 08/24/2015 09:01 AM, Bharata B Rao wrote: > The hash table size allocated to guest depends on the maxmem size. > If the host isn't able to allocate the required hash table size but > instead allocates less than the optimal requested size, then it will > not be possible to grow the RAM until maxm

[Qemu-devel] [RFC PATCH v0] spapr: Disable memory hotplug when HTAB size is insufficient

2015-08-24 Thread Bharata B Rao
The hash table size allocated to guest depends on the maxmem size. If the host isn't able to allocate the required hash table size but instead allocates less than the optimal requested size, then it will not be possible to grow the RAM until maxmem via memory hotplug. Attempts to hotplug memory til