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

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Message-ID: <f7246cb6-901e-0bc3-eb18-194d1754da53@kernel.org>
Date:   Wed, 21 Oct 2020 08:22:40 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...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

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?

thanks,
-- 
js