Just a note to inform you that I've submitted a new patch on a
separate thread -- dealing with VM live migration after receiving
memory errors:
https://lore.kernel.org/qemu-devel/20231013150839.867164-3-william.ro...@oracle.com/
This patch belongs to a 2 patches set that should fix the migration
On 9/22/23 16:30, Yazen Ghannam wrote:
On 9/22/23 4:36 AM, William Roche wrote:
On 9/21/23 19:41, Yazen Ghannam wrote:
[...]
Also, during page migration, does the data flow through the CPU core?
Sorry for the basic question. I haven't done a lot with virtualization.
Yes, in most cases (with
On 9/22/23 4:36 AM, William Roche wrote:
> On 9/21/23 19:41, Yazen Ghannam wrote:
>> On 9/20/23 7:13 AM, Joao Martins wrote:
>>> On 18/09/2023 23:00, William Roche wrote:
[...]
So it looks like the mechanism works fine... unless the VM has migrated
between the SRAO error and the
On 9/21/23 19:41, Yazen Ghannam wrote:
On 9/20/23 7:13 AM, Joao Martins wrote:
On 18/09/2023 23:00, William Roche wrote:
[...]
So it looks like the mechanism works fine... unless the VM has migrated
between the SRAO error and the first time it really touches the poisoned
page to get an SRAR
On 9/20/23 7:13 AM, Joao Martins wrote:
> On 18/09/2023 23:00, William Roche wrote:
>> Hi John,
>>
>> I'd like to put the emphasis on the fact that ignoring the SRAO error
>> for a VM is a real problem at least for a specific (rare) case I'm
>> currently working on: The VM migration.
>>
>>
On 18/09/2023 23:00, William Roche wrote:
> Hi John,
>
> I'd like to put the emphasis on the fact that ignoring the SRAO error
> for a VM is a real problem at least for a specific (rare) case I'm
> currently working on: The VM migration.
>
> Context:
>
> - In the case of a poisoned page in the
Hi John,
I'd like to put the emphasis on the fact that ignoring the SRAO error
for a VM is a real problem at least for a specific (rare) case I'm
currently working on: The VM migration.
Context:
- In the case of a poisoned page in the VM address space, the migration
can't read it and will skip
From: William Roche
AMD guests can't currently deal with BUS_MCEERR_AO MCE injection
as it panics the VM kernel. We filter this event and provide a
warning message.
Signed-off-by: William Roche
---
v3:
- New patch
v4:
- Remove redundant check for AO errors
---
target/i386/kvm/kvm.c |
From: William Roche
AMD guests can't currently deal with BUS_MCEERR_AO MCE injection
as it panics the VM kernel. We filter this event and provide a
warning message.
Signed-off-by: William Roche
---
v3:
- New patch
v4:
- Remove redundant check for AO errors
---
target/i386/kvm/kvm.c | 9
