linux-kernel - Re: Segfault in pahole 1.18 when building kernel 5.9.1 for arm64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20201021112900.GN2342001@kernel.org>
Date:   Wed, 21 Oct 2020 08:29:00 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Jiri Slaby <jirislaby@...nel.org>
Cc:     Érico Rolim <erico.erc@...il.com>,
        dwarves@...r.kernel.org, linux-kernel@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Hao Luo <haoluo@...gle.com>, Andrii Nakryiko <andriin@...com>
Subject: Re: Segfault in pahole 1.18 when building kernel 5.9.1 for arm64

Em Wed, Oct 21, 2020 at 08:22:40AM +0200, Jiri Slaby escreveu:
> On 20. 10. 20, 14:20, Arnaldo Carvalho de Melo wrote:
> > > Yeah, I observe the very same. I reported it at:
> > > https://bugzilla.suse.com/show_bug.cgi?id=1177921

> > Would it be possible to try with
> > https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?h=tmp.libbtf_encoder
> > ?
 
> Yes, that branch fixes the crashes and the kernel build finishes. The
> zero-sized symbol error remains.
 
> So what should distributions do now -- should we switch to a pahole snapshot
> for a while?

That would do the trick, I just completed my testing and pushed to the
master branch on kernel.org and github, tests detailed at:

https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=040fd7f585c9b9fcf4475d294b3f5ddf78405297

There are some minor bug reports I want to address but my ETA right now
is the end of this week to release v1.19.

- Arnaldo