Re: [PATCH v2] PCI: disable SERR for kdump kernel

[Yinghai Lu]

On Thu, Apr 20, 2017 at 10:14 AM, Sinan Kaya <okaya@xxxxxxxxxxxxxx> wrote:
> On 4/18/2017 8:31 PM, Yinghai Lu wrote:
>> * pci_setup_device - fill in class and map information of a device
>>   * @dev: the device structure to fill
>> @@ -1572,6 +1592,9 @@ int pci_setup_device(struct pci_dev *dev
>>       /* device class may be changed after fixup */
>>       class = dev->class >> 8;
>>
>> +     if (is_kdump_kernel())
>> +             pci_disable_serr(dev);
>> +
>
> This sounds like something that needs to be done while shutting down
> the first kernel as part of the kdump procedure rather than boot of
> the kdump kernel in pci setup.

For kdump path, first kernel shutdown path is not called.

We have to do sth in second kernel instead.

Thanks

Yinghai