Re: [PATCH kernel v2] powerpc/mm: Flush radix process translations when setting MMU type
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2018-02-14 13:36:14
Laurent Vivier [off-list ref] writes:
On 07/02/2018 18:49, Daniel Henrique Barboza wrote:quoted
On 02/07/2018 12:33 PM, Laurent Vivier wrote:quoted
On 01/02/2018 06:09, Alexey Kardashevskiy wrote:quoted
Radix guests do normally invalidate process-scoped translations when a new pid is allocated but migrated guests do not invalidate these so migrated guests crash sometime, especially easy to reproduce with migration happening within first 10 seconds after the guest boot start on the same machine. This adds the "Invalidate process-scoped translations" flush to fix radix guests migration. Signed-off-by: Alexey Kardashevskiy <redacted>
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Tested-by: Laurent Vivier <lvivier@redhat.com>Any hope to have this patch merged soon? It fixes a real problem and migration of VM is not reliable without it.
Sorry it got lost in the merge window / rc1 madness. It's in my fixes branch now and heading to Linus. cheers