Re: zisofs data corruption in 2.4.19-pre7-ac2

David Woodhouse (dwmw2@infradead.org)
Mon, 13 May 2002 15:09:25 +0100


pekon@informatics.muni.cz said:
> I think I discovered an obscure bug in zisofs in 2.4.19-pre7-ac2. It
> manifests thus:

> $ cat /mnt/cdimage/7x14.pbm
> cat: data: Input/output error
> and the following (single) line gets logged:
> zisofs: zisofs_inflate returned 3, inode = 47342, index = 0, fpage = 0,
> xpage = 0, avail_in = 0, avail_out = 1890, ai = 2024, ao = 4096

OK, apply this and both ppp_deflate and zisofs should be happy.

--- lib/zlib_inflate/inflate.c.orig Mon May 13 14:40:26 2002
+++ lib/zlib_inflate/inflate.c Mon May 13 14:40:46 2002
@@ -110,7 +110,7 @@

#undef NEEDBYTE
#undef NEXTBYTE
-#define NEEDBYTE {if(z->avail_in==0)goto empty;r=f;}
+#define NEEDBYTE {if(z->avail_in==0)goto empty;r=trv;}
#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++)

int ZEXPORT zlib_inflate(z, f)

--
dwmw2

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