linux-kernel - Re: regression: Bug 215601 - gcc segv at startup on ia64

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Message-ID: <4e42e754-d87e-5f6b-90db-39b4700ee0f1@physik.fu-berlin.de>
Date:   Mon, 21 Feb 2022 22:57:01 +0100
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Kees Cook <keescook@...omium.org>,
        Thorsten Leemhuis <regressions@...mhuis.info>,
        Anthony Yznaga <anthony.yznaga@...cle.com>
Cc:     matoro_bugzilla_kernel@...oro.tk,
        Andrew Morton <akpm@...ux-foundation.org>,
        "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>,
        linux-ia64@...r.kernel.org,
        Linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: regression: Bug 215601 - gcc segv at startup on ia64

Hi Kees!

On 2/21/22 21:58, Kees Cook wrote:
>> I have applied this patch on top of 038101e6b2cd5c55f888f85db42ea2ad3aecb4b6 and it doesn't
>> fix the problem for me. Reverting 5f501d555653f8968011a1e65ebb121c8b43c144, however, fixes
>> the problem.
>>
>> FWIW, this problem doesn't just affect GCC but systemd keeps segfaulting with this change as well.
> 
> Very weird! Can you attached either of those binaries to bugzilla (or a URL I can fetch it from)? I can try to figure out where it is going weird...

Here's the initrd of that particular machine:

> https://people.debian.org/~glaubitz/initrd.img-5.17.0-rc5+

You should be able to extract the binaries from this initrd image and the "mount" command,
for example, should be one of the affected binaries.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@...ian.org
`. `'   Freie Universitaet Berlin - glaubitz@...sik.fu-berlin.de
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