linux-kernel - RE: [PATCH v4 0/3] initramfs: add support for xattrs in the initial ram disk

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Message-ID: <8e6a723874644449be99fcebb0905058@huawei.com>
Date:   Tue, 19 Jul 2022 06:55:50 +0000
From:   Roberto Sassu <roberto.sassu@...wei.com>
To:     Jim Baxter <jim_baxter@...tor.com>,
        Eugeniu Rosca <erosca@...adit-jv.com>
CC:     Rob Landley <rob@...dley.net>, "hpa@...or.com" <hpa@...or.com>,
        "Masahiro Yamada" <masahiroy@...nel.org>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        "Mimi Zohar" <zohar@...ux.ibm.com>,
        "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
        "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>,
        "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "initramfs@...r.kernel.org" <initramfs@...r.kernel.org>,
        "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bug-cpio@....org" <bug-cpio@....org>,
        "zohar@...ux.vnet.ibm.com" <zohar@...ux.vnet.ibm.com>,
        Silviu Vlasceanu <Silviu.Vlasceanu@...wei.com>,
        Dmitry Kasatkin <dmitry.kasatkin@...wei.com>,
        "takondra@...co.com" <takondra@...co.com>,
        "kamensky@...co.com" <kamensky@...co.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "james.w.mcmechan@...il.com" <james.w.mcmechan@...il.com>,
        "linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>,
        Dirk Behme <dirk.behme@...bosch.com>,
        Eugeniu Rosca <roscaeugeniu@...il.com>
Subject: RE: [PATCH v4 0/3] initramfs: add support for xattrs in the initial
 ram disk

> From: Jim Baxter [mailto:jim_baxter@...tor.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@...mens.com <mailto:jim.baxter@...mens.com>
> sw.siemens.com <https://sw.siemens.com/>
> 
> On 18/07/2022 17:49, Roberto Sassu wrote:
> >> From: Jim Baxter [mailto:jim_baxter@...tor.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.
> >
> 
> 
> 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