Re: [PATCH] mptfusion: enable no_write_same in scsi_host_template

[Chris J Arges]

On 09/22/2014 01:19 PM, Christoph Hellwig wrote:
> On Mon, Sep 22, 2014 at 01:17:01PM -0500, Chris J Arges wrote:
>>>
>> I've only been able to reproduce this on VMWare. There is a pretty
>> straightforward reproducer in the BugLink if there is any interest in
>> verifying on hardware.
>>
>> How would you recommending blacklisting only VMWare guests in this case?
> 
> Can you check what PCI subdevice and subvendor IDs the device you can
> reproduce it with have?  If the subvendor is Vmware that would be easy,
> if not the Avago people might be able to help with a device specific
> VMware identification.  If that fails we have kernel helpers to
> identify the hypervisor, but I'd rather avoid that as it would also
> trigger for PCI pass through devices.
> 

Christoph,

Thanks for the input, and now I realize how broad the earlier patch was.
I'll see if I can quirk on the vendor ID to enable no_write_same, in the
meantime I'll see if there are any ways to fix the underlying issue
without adding such a quirk.

Thanks,
--chris j arges
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/