On 01/28/2013 08:38 PM, Matt Fleming wrote: > On Mon, 2013-01-28 at 10:38 +0800, Lingzhu Xiang wrote: >> On 01/25/2013 09:18 PM, Matt Fleming wrote: >>>> 4. EFI_VARIABLE_APPEND_WRITE with EFI_OUT_OF_RESOURCES truncates size but you >>>> can still read its content. >>> >>> I'm not sure what you mean by this. Could you please explain? >> >> Oops, this one is incorrect. I was testing EFI_VARIABLE_APPEND_WRITE >> using this: >> >> printf "\x47\x00\x00\x00\x00" >test-1-$guid >> >> So it truncates the file before writing, but efivarfs figures out the right >> size afterwards. The size remains zero if the write fails. >> >> I should be using this for appending: >> >> printf "\x47\x00\x00\x00\x00" >>test-1-$guid > > Does this mean that these two test cases work as expected? Mostly yes. printf "\x47\x00\x00\x00\x00" >test-1-$guid still shows unexpected truncate behavior. But this is the same one already noted previously (truncate doesn't actually work). -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
