On Fri, Jun 08, 2001 at 01:46:41PM +0100, Richard Hirst wrote:
> Debian boot-floppies for m68k hang in init on bootup. This is because
> of a change in size of struct sysinfo between 2.2 and 2.4 kernels.
> Only a problem on m68k, because it aligns 32 bit words to 16 bit
> boundaries. Basically, the struct has some padding which is supposed
> to make it 64 bytes long. For 2.2 kernels it did, but then someone
> added more fields and reduced the padding such that it is 64 bytes
> on most platforms but 62 bytes on m68k.
>
> busybox has its own copy of struct sysinfo, taken from a 2.4
> kernel, but I am running busybox under a 2.2 kernel. busybox calls
> sysinfo() expecting 62 bytes, but gets 64 bytes, which trashes the
> stack and hangs init.
>
> I have applied the following patch to my busybox source, which fixes
> the problem.
Thanks. I've committed it to BusyBox upstream. Erik, can we do
another BusyBox Debian package? With just this patch?
Matt
Index: libbb/libbb.h
===================================================================
RCS file: /var/cvs/busybox/libbb/libbb.h,v
retrieving revision 1.38
diff -u -r1.38 libbb.h
--- libbb/libbb.h 2001/06/01 21:47:15 1.38
+++ libbb/libbb.h 2001/06/08 13:54:39
@@ -190,6 +190,7 @@
unsigned long totalswap; /* Total swap space size */
unsigned long freeswap; /* swap space still available */
unsigned short procs; /* Number of current processes */
+ unsigned short pad; /* Padding needed for m68k */
unsigned long totalhigh; /* Total high memory size */
unsigned long freehigh; /* Available high memory size */
unsigned int mem_unit; /* Memory unit size in bytes */
--
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