Messages in this thread | | | From | Vitaly Kuznetsov <> | Subject | [PATCH 0/2] Drivers: hv: balloon: two memory hotplug fixes | Date | Tue, 5 Apr 2016 19:21:12 +0200 |
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Hi,
I found an issue (crash) while testing memory hotplug on WS2016TP4 host. It should be easily reproducible with the following test sequence (4.6-rc2):
1) Start a VM with 4 vCPUs in 4 NUMA nodes, 4096Mb of RAM. 2) Enable memory auto onlining with 'echo online > /sys/devices/system/memory/auto_online_blocks' 3) Wait till hv_balloon driver finishes negotiation. 4) Increase memory to 8192Mb. 5) Increase memory to 10000Mb.
The first patch in the series fixes the issue. While writing it I stumbled upon an unrelated issue which I fix with PATCH 2.
Please review.
Vitaly Kuznetsov (2): Drivers: hv: balloon: don't crash when memory is added in non-sorted order Drivers: hv: balloon: reset host_specified_ha_region
drivers/hv/hv_balloon.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
-- 2.5.5
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