On Tue, 29 Apr 2008 14:33:29 -0700 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > On Mon, 28 Apr 2008 14:23:58 -0500 > Russ Anderson <rja@xxxxxxx> wrote: > > > --- test.orig/include/linux/kernel.h 2008-04-25 > > 15:22:07.640501421 -0500 +++ test/include/linux/kernel.h > > 2008-04-25 15:42:02.826266036 -0500 @@ -412,6 +412,7 @@ struct > > sysinfo { unsigned long totalhigh; /* Total high memory size > > */ unsigned long freehigh; /* Available high memory > > size */ unsigned int mem_unit; /* Memory unit size > > in bytes */ > > + unsigned int badpages; /* Number of bad > > (PG_memerror) pages */ char > > _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses > > this.. */ }; > > eek. sys_sysinfo() copies this structure out to userspace verbatim. > Increasing its size by four bytes will cause memory scribbles in > userspace applications. not if you also reduce the padding ?? -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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