From: Al Viro <viro@ZenIV.linux.org.uk>
To: Hannes Eder <hannes@hanneseder.net>
Cc: Christopher Li <sparse@chrisli.org>,
linux-sparse@vger.kernel.org,
Nicholas Mc Guire <der.herr@hofr.at>
Subject: Re: [bug, bisected, -chrisl] Segfault at evaluate.c:341
Date: Thu, 19 Mar 2009 19:14:31 +0000 [thread overview]
Message-ID: <20090319191431.GD28946@ZenIV.linux.org.uk> (raw)
In-Reply-To: <154e089b0903191138x15b66808v70bc862d7a13e3c2@mail.gmail.com>
On Thu, Mar 19, 2009 at 07:38:51PM +0100, Hannes Eder wrote:
> http://hanneseder.net/sparse/kernel-cred-c.prep.tar.gz
>
> $ sparse kernel-cred-c.prep.gcc
>
> produces some warnings as usual.
>
> $ sparse kernel-cred-c.prep.sparse
>
> produces some warnings, a boatload of errors, and then segfaults.
Oh, joy.
a) some <expletives> has #define if(x) ....... (check it out, I'm not kidding)
b) ifdef that turd's conditional upon is present in your .config
c) ... and now,
if (
#ifdef .....
barf &&
#endif
vomit)
steps into undefined behaviour.
next prev parent reply other threads:[~2009-03-19 19:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 13:49 [bug, bisected, -chrisl] Segfault at evaluate.c:341 Hannes Eder
2009-03-19 14:46 ` Al Viro
2009-03-19 18:32 ` Nicholas Mc Guire
2009-03-19 18:38 ` Hannes Eder
2009-03-19 19:14 ` Al Viro [this message]
2009-03-19 20:04 ` Christopher Li
2009-03-19 21:52 ` Al Viro
2009-03-19 22:09 ` Al Viro
2009-03-19 23:11 ` Christopher Li
2009-03-21 4:40 ` Al Viro
2009-03-21 17:28 ` Al Viro
2009-03-23 9:22 ` Christopher Li
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