Date: Sat, 19 Dec 1998 16:07:11 -0800 From: John-Mark Gurney <gurney_j@efn.org> To: John-Mark Gurney <gurney_j@resnet.uoregon.edu> Cc: FreeBSD Hackers <freebsd-hackers@FreeBSD.ORG> Subject: Re: _rtld_bind_start Segfault Message-ID: <19981219160711.16076@hydrogen.nike.efn.org> In-Reply-To: <19981219122025.22295@hydrogen.nike.efn.org>; from John-Mark Gurney on Sat, Dec 19, 1998 at 12:20:25PM -0800 References: <19981219122025.22295@hydrogen.nike.efn.org>
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John-Mark Gurney scribbled this message on Dec 19:
> for (j = 0; j < MAX; j++)
> { for (i = 0; i < MAX; i++);
^
I found the problem.... i was 20 for the next two lines overwriting
environ's data, and the printf at the begining was cacheing the results
of the getenv calls that were necessary...
> { A[i][j] = i - j;
> B[i][j] = i + j;
> }
> }
the reason I wrote this message is that I run across another bug in
another program that linking the program -static fixed a problem where
it's child process would suddenly start to segfault... and the segfault
was in strcpy... at one time the address managed to be reported as
_rtld_bind_start.... and I know for a FACT that the addresses were
correct, as I set a break point at the strcpy, verified that both the
destination buffer was an automatic char [512], and the source was a
seven character string... I would try to advance to the next line and
it would segfault...
debuging this program is hard as the bug doesn't show up till 400+megs
into the data stream, and I don't have enough disk space currently to
store it on disk (I will in a few hours)... and it takes ~45 minutes
to read the 400megs from tape...
sorry to bother you guys...
--
John-Mark Gurney Voice: +1 541 684 8449
Cu Networking P.O. Box 5693, 97405
Live in Peace, destroy Micro$oft, support free software, run FreeBSD
Don't trust anyone you don't have the source for
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