> From: Michael Kelley <mikelley@xxxxxxxxxxxxx>
> Sent: Tuesday, December 22, 2020 5:56 AM
> From: Dexuan Cui
> Sent: Thursday, December 17, 2020
> 8:08 PM
> >
> > Linux VM on Hyper-V crashes with the latest mainline:
> > ...
> > --- a/drivers/acpi/scan.c
> > +++ b/drivers/acpi/scan.c
> > @@ -674,7 +674,8 @@ int acpi_device_add(struct acpi_device *device,
> > }
> > if (!found) {
> > acpi_device_bus_id = new_bus_id;
> > - strcpy(acpi_device_bus_id->bus_id, acpi_device_hid(device));
> > + strlcpy(acpi_device_bus_id->bus_id, acpi_device_hid(device),
> > + sizeof(acpi_device_bus_id->bus_id));
> > acpi_device_bus_id->instance_no = 0;
> > list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list);
> > }
>
> Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Hi, ACPI maintainers,
Would you please take a look at the small fix? Currently the mainline Linux
kernel, running in a VM on Hyper-V, has been broken for almost 3 weeks,
i.e. the VM always panics when it boots.
The patch has already had Michael's Reviewed-by.
BTW, the patch should have a stable tag:
Cc: <stable@xxxxxxxxxxxxxxx>
Or, do you want the patch to go through the Hyper-V tree?
https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/log/?h=hyperv-fixes
The small patch is unlikely to cause a merge conflict, and it only affects
Linux VMs on Hyper-V so far.
Thanks,
-- Dexuan
