search for: hotadd

Hello, Does KVM support hotadd memory and hot-plug cpu? I checked it using the virsh command but I can only increase the memory to the maximum memory that is initially set But setmaxmem command is failing. Which means this require a reboot of the guest # virsh setmaxmem 4 1048576 error: Unable to change MaxMemorySize error:...

Hello, First of all, happy new year! I am interested in the hot plugging facilities of libvirt, in particular in what qemu calls 'hot add' of network interface cards. (And also the reverse: hot unplugging/removing of NICs.) I think I am overlooking something, but so far the best I have been able to find is: http://libvirt.org/sources/virshcmdref/html/ and it is not entirely clear

...y-hotplug head. Changes: - /sys/devices/system/memory/probe interface has been removed; /sys/devices/system/xen_memory/xen_memory0/{target,target_kb} are much better (I forgot about them), - most of the code have been moved to drivers/xen/balloon.c, - this changes forced me to export hotadd_new_pgdat and rollback_node_hotadd function from mm/memory_hotplug.c; could it be accepted by mm/memory_hotplug.c maintainers ??? - PV on HVM mode is supported now; it was tested on git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git repository, 2.6.34-pvhvm head, - most of...

I suppose we may as well implement the only other flag too ... It's not clear what this does, something like O_DIRECT I imagine. Rich.

Hi all, This morning I received this notification from mdadm: This is an automatically generated mail message from mdadm running on server-mail.mydomain.kom A Fail event had been detected on md device /dev/md1. Faithfully yours, etc. In /proc/mdstat I see this: Personalities : [raid1] md1 : active raid1 sdb2[2](F) sda2[0] 77842880 blocks [2/1] [U_] md0 : active raid1 sdb1[1] sda1[0]

Argon2 is the default LUKS Password-Based Key Derivation Function (PBKDF) for some new guests such as RHEL 8.2 and Fedora. It is designed to be "memory hard", meaning that by design it requires large amounts of memory, making it expensive to brute-force. Unfortunately the default for guests which had more than a few GB of RAM at install time is to require about 1 GB of RAM to decrypt

I have 3 disks that I want to setup in a raid 1, my questions is should I setup the 3rd disk as a spare-disk or should I mirror all 3 disks all the time? Will it perform *much* better to only mirror two and have the 3rd as a spare. Is it not safer to mirror all 3 drives all the time ?

On Wed, Jun 24, 2015 at 04:52:29PM +0200, Igor Mammedov wrote: > On Wed, 24 Jun 2015 16:17:46 +0200 > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > On Wed, Jun 24, 2015 at 04:07:27PM +0200, Igor Mammedov wrote: > > > On Wed, 24 Jun 2015 15:49:27 +0200 > > > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > >

On Wed, Jun 24, 2015 at 04:52:29PM +0200, Igor Mammedov wrote: > On Wed, 24 Jun 2015 16:17:46 +0200 > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > On Wed, Jun 24, 2015 at 04:07:27PM +0200, Igor Mammedov wrote: > > > On Wed, 24 Jun 2015 15:49:27 +0200 > > > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > >

...in vboxDomainDumpXML (Matthias Bolte) - Check getenv("PATH") for NULL in virFindFileInPath (Matthias Bolte) - Fix cgroup setup code to cope with root squashing NFS (Daniel P. Berrange) - Fix leaks in udev device add/remove v3 (David Allan) - Ensure that PCI device is reattached to host if hotadd fails (Daniel P. Berrange) - Don't raise errors in the selinux restore code (Daniel P. Berrange) - Fix check for errors in device_add command in QEMU text monitor (Daniel P. Berrange) - Network duplicate UUID/name checking (Daniel P. Berrange) - Storage pool duplicate UUID/name checking (Daniel...

...ows does support memory hotplug but not memory hotunplug. So this could be a way to support it also for Windows. --- Q: Will this work with Windows? A: Most probably not in the current form. Memory has to be at least added to the a820 map and ACPI (NUMA). Hyper-V ballon is also able to hotadd memory using a paravirtualized interface, so there are very good chances that this will work. But we won't know for sure until we also start prototyping. --- Q: How does this compare to virtio-balloo? A: In contrast to virtio-balloon, virtio-mem 1. Supports multiple page sizes, even d...

...ows does support memory hotplug but not memory hotunplug. So this could be a way to support it also for Windows. --- Q: Will this work with Windows? A: Most probably not in the current form. Memory has to be at least added to the a820 map and ACPI (NUMA). Hyper-V ballon is also able to hotadd memory using a paravirtualized interface, so there are very good chances that this will work. But we won't know for sure until we also start prototyping. --- Q: How does this compare to virtio-balloo? A: In contrast to virtio-balloon, virtio-mem 1. Supports multiple page sizes, even d...

...not memory hotunplug. So > this could be a way to support it also for Windows. > --- > Q: Will this work with Windows? > > A: Most probably not in the current form. Memory has to be at least > added to the a820 map and ACPI (NUMA). Hyper-V ballon is also able to > hotadd memory using a paravirtualized interface, so there are very > good chances that this will work. But we won't know for sure until we > also start prototyping. > --- > Q: How does this compare to virtio-balloo? > > A: In contrast to virtio-balloon, virtio-mem > 1. S...

...lloon_stats.hotplug_start_paddr; } -/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */ -static int __ref xen_add_memory(int nid, u64 start, u64 size) -{ - pg_data_t *pgdat = NULL; - int new_pgdat = 0, ret; - - lock_system_sleep(); - - if (!node_online(nid)) { - pgdat = hotadd_new_pgdat(nid, start); - ret = -ENOMEM; - if (!pgdat) - goto out; - new_pgdat = 1; - } - - /* call arch''s memory hotadd */ - ret = arch_add_memory(nid, start, size); - - if (ret < 0) - goto error; - - /* we online node here. we can''t roll back from here. */ - node_set_onl...