linux-kernel - Re: [PATCH] x86, efi: change name of efi_no_storage_paranoia parameter to efi_storage

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Message-ID: <527CB013.30200@jp.fujitsu.com>
Date:	Fri, 8 Nov 2013 18:34:11 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	Richard Weinberger <richard@....at>
CC:	<linux-efi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<matt.fleming@...el.com>, <matthew.garrett@...ula.com>,
	<jlee@...e.com>
Subject: Re: [PATCH] x86, efi: change name of efi_no_storage_paranoia parameter
 to efi_storage_paranoia

(2013/11/08 17:05), Richard Weinberger wrote:
> Am 08.11.2013 08:33, schrieb Yasuaki Ishimatsu:
>> By following works, my system very often fails set_variable() to set new
>> variable to efi variable storage and shows "efivars: set_variable() failed:
>> status=-28" message.
>>
>> - commit 31ff2f20d9003e74991d135f56e503fe776c127c
>>      efi: Distinguish between "remaining space" and actually used space
>> - commit 8c58bf3eec3b8fc8162fe557e9361891c20758f2
>>      x86,efi: Implement efi_no_storage_paranoia parameter
>> - commit f8b8404337de4e2466e2e1139ea68b1f8295974f
>>      Modify UEFI anti-bricking code
>>
>> When booting my system, remaining space of efi variable storage is about
>> 5KB. So there is no room that sets a new variable to the storage.
>>
>> According to above works, efi_no_storage_paranoia parameter was prepared
>> for sane UEFI which can do gc and fulfills spec. But why need a system
>> with a sane UEFI set the parameter? It is wrong. A system with a broken
>> UEFI should set the parameter.
> 
> And how does one know that his UEFI is broken?

I have no idea. But at least, bricked board is broken UEFI.
Do you know the issue occurs on several boards or specific board?

Thanks,
Yasuaki Ishimatsu

> "Oh my board is briked because I wrote too much into a variable, maybe setting
> efi_storage_paranoia would have saved me. Let's try with the next board..." ;)
> 
> Thanks,
> //richard
> 


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