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qemu.go: qemu: setupVirtioMem: let sizeMB be multiple of 2Mib

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Got:
FATA[0000] run pod sandbox: rpc error: code = Unknown desc = failed to
create containerd task: Add 189759MB virtio-mem-pci fail QMP command
failed: backend memory size must be multiple of 0x200000: unknown

This commit let sizeMB be multiple of 2Mib to fix the issue.

Fixes: #1796

Signed-off-by: Hui Zhu <teawater@antfin.com>
This commit is contained in:
Hui Zhu 2021-05-03 21:49:11 +08:00
parent d0eda5ecfd
commit c9053ea3fb
1 changed files with 2 additions and 2 deletions
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4
src/runtime/virtcontainers/qemu.go
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@ -768,8 +768,8 @@ func (q *qemu) setupVirtioMem() error {
if err != nil {
return err
}
// 1024 is size for nvdimm
sizeMB := int(maxMem) - int(q.config.MemorySize)
// backend memory size must be multiple of 2Mib
sizeMB := (int(maxMem) - int(q.config.MemorySize)) >> 2 << 2
share, target, memoryBack, err := q.getMemArgs()
if err != nil {