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Message-ID: <d6af7f7e-7f8c-a6a7-7a09-84928fd69774@mentor.com>
Date:   Fri, 29 Jul 2022 11:37:49 +0100
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Subject: Re: [PATCH v4 0/3] initramfs: add support for xattrs in the initial
 ram disk
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To:     Roberto Sassu <roberto.sassu@huawei.com>,
        Eugeniu Rosca <erosca@de.adit-jv.com>
CC:     Rob Landley <rob@landley.net>, "hpa@zytor.com" <hpa@zytor.com>,
        Masahiro Yamada <masahiroy@kernel.org>,
        Arvind Sankar <nivedita@alum.mit.edu>,
        Mimi Zohar <zohar@linux.ibm.com>,
        "viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
        "linux-security-module@vger.kernel.org" 
        <linux-security-module@vger.kernel.org>,
        "linux-integrity@vger.kernel.org" <linux-integrity@vger.kernel.org>,
        "initramfs@vger.kernel.org" <initramfs@vger.kernel.org>,
        "linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
        "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "bug-cpio@gnu.org" <bug-cpio@gnu.org>,
        "zohar@linux.vnet.ibm.com" <zohar@linux.vnet.ibm.com>,
        Silviu Vlasceanu <Silviu.Vlasceanu@huawei.com>,
        Dmitry Kasatkin <dmitry.kasatkin@huawei.com>,
        "takondra@cisco.com" <takondra@cisco.com>,
        "kamensky@cisco.com" <kamensky@cisco.com>,
        "arnd@arndb.de" <arnd@arndb.de>,
        "james.w.mcmechan@gmail.com" <james.w.mcmechan@gmail.com>,
        "linux-kbuild@vger.kernel.org" <linux-kbuild@vger.kernel.org>,
        Dirk Behme <dirk.behme@de.bosch.com>,
        Eugeniu Rosca <roscaeugeniu@gmail.com>
References: <33cfb804-6a17-39f0-92b7-01d54e9c452d@huawei.com>
 <1561909199.3985.33.camel@linux.ibm.com>
 <45164486-782f-a442-e442-6f56f9299c66@huawei.com>
 <1561991485.4067.14.camel@linux.ibm.com>
 <f85ed711-f583-51cd-34e2-80018a592280@huawei.com>
 <0c17bf9e-9b0b-b067-cf18-24516315b682@huawei.com>
 <20220609102627.GA3922@lxhi-065>
 <21b3aeab20554a30b9796b82cc58e55b@huawei.com>
 <20220610153336.GA8881@lxhi-065>
 <4bc349a59e4042f7831b1190914851fe@huawei.com>
 <20220615092712.GA4068@lxhi-065>
 <032ade35-6eb8-d698-ac44-aa45d46752dd@mentor.com>
 <f82d4961986547b28b6de066219ad08b@huawei.com>
 <737ddf72-05f4-a47e-c901-fec5b1dfa7a6@mentor.com>
 <8e6a723874644449be99fcebb0905058@huawei.com>
From:   Jim Baxter <jim_baxter@mentor.com>
Organization: Siemens Digital Industries Software
In-Reply-To: <8e6a723874644449be99fcebb0905058@huawei.com>
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On 19/07/2022 07:55, Roberto Sassu wrote:
>> From: Jim Baxter [mailto:jim_baxter@mentor.com]
>> Sent: Monday, July 18, 2022 8:08 PM
>>
>>
>>
>> Best regards,
>>
>> *Jim Baxter*
>>
>> Siemens Digital Industries Software
>> Automotive Business Unit
>> DI SW STS ABU
>> UK
>> Tel.: +44 (161) 926-1656
>> mailto:jim.baxter@siemens.com <mailto:jim.baxter@siemens.com>
>> sw.siemens.com <https://sw.siemens.com/>
>>
>> On 18/07/2022 17:49, Roberto Sassu wrote:
>>>> From: Jim Baxter [mailto:jim_baxter@mentor.com]
>>>> Sent: Monday, July 18, 2022 6:36 PM
>>>>
>>>>
>>>> Hello,
>>>>
>>>> I have been testing these patches and do not see the xattr information when
>>>> trying to retrieve it within the initramfs, do you have an example of how
>>>> you tested this originally?
>>>
>>> Hi Jim, all
>>>
>>> apologies, I didn't find yet the time to look at this.
>>
>> Hello Roberto,
>>
>> Thank you for your response, I can wait until you have looked at the patches,
>> I asked the question to make sure it was not something wrong in my
>> configuration.
>>
>>>
>>> Uhm, I guess this could be solved with:
>>>
>>> https://github.com/openeuler-
>> mirror/kernel/commit/18a502f7e3b1de7b9ba0c70896ce08ee13d052da
>>>
>>> and adding initramtmpfs to the kernel command line. You are
>>> probably using ramfs, which does not have xattr support.
>>>

Can I clarify which filesystem type is supported with this patch series?
Is it tmpfs or perhaps a ramdisk?


>>
>>
>> Thank you, I have tested that patch but the problem remained. Here is my
>> command line, I wonder if there is something wrong.
>>
>> Kernel command line: rw rootfstype=initramtmpfs root=/dev/ram0
>> initrd=0x500000000 rootwait
> 
> It is just initramtmpfs, without rootfstype=.
> 
> Roberto

Best regards,
Jim