Date: Thu, 28 Mar 2002 22:31:36 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Anders Nor Berle <debolaz@debolaz.com> Cc: current@FreeBSD.ORG Subject: Re: linux_base-7 installation breaks with zlib 1.1.4 Message-ID: <20020328222925.H7619-100000@gamplex.bde.org> In-Reply-To: <2085.62.179.190.82.1017303516.squirrel@webmail.debolaz.com>
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On Thu, 28 Mar 2002, Anders Nor Berle wrote:
> linux_base-7 (And most likely other ports as well) seems to be broken after zlib 1.1.4
> was committed to -current. Zlib was made with fresh source from today (28.3) and rpm
> recompiled.
>
> ===> Installing for linux_base-7.1_2
> kern.fallback_elf_brand: 3 -> 3
> glibc-common-2.2.2-10.i386.rpm
> Segmentation fault - core dumped
> *** Error code 139
>
> Not particulary promising when you look at the core backtrace from rpm...
>
> #0 0x8090a3f in inflate_codes (s=0x8150380, z=0x8154b00, r=0)
> at /usr/src/lib/libz/infcodes.c:203
> 203 while (f < s->window) /* modulo window size-"while" instead
> */ (gdb) bt
> #0 0x8090a3f in inflate_codes (s=0x8150380, z=0x8154b00, r=0)
> at /usr/src/lib/libz/infcodes.c:203
I use the following quick fix for the corresponding core dump in man and zgrep.
%%%
Index: infcodes.c
===================================================================
RCS file: /home/ncvs/src/lib/libz/infcodes.c,v
retrieving revision 1.3
diff -u -2 -r1.3 infcodes.c
--- infcodes.c 11 Mar 2002 22:36:26 -0000 1.3
+++ infcodes.c 19 Mar 2002 00:35:28 -0000
@@ -201,6 +201,11 @@
case COPY: /* o: copying bytes in window, waiting for space */
f = q - c->sub.copy.dist;
- while (f < s->window) /* modulo window size-"while" instead */
- f += s->end - s->window; /* of "if" handles invalid distances */
+ {
+ /* XXX work around a gcc bug. */
+ volatile inflate_blocks_statef *s1 = s;
+
+ while (f < s1->window) /* modulo window size-"while" instead */
+ f += s1->end - s1->window; /* of "if" handles invalid distances */
+ }
while (c->len)
{
%%%
Bruce
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