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SubjectPROBLEM: Unresolved symbols of _mmx_memcpy in modules on an Athlon XP system
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1. PROBLEM: Unresolved symbols of _mmx_memcpy in modules on an Athlon XP 
system

2. I've recently built a new server, and transplanted my linux installation
disks from an old server. The new server is an AMD Athlon XP 1800, the old
server was an AMD K6-II 500MHz.

The transplant went fine, however I haven't been able to successfully move
to an Athlon-optimised kernel. The kernel compile is fine, but when running
depmod -de after installing the modules, I'm faced with about 20 "unresolved
symbols". Each module is missing _mmx_memcpy.

I cannot get around it - I've tried everything, from the patch to
arch/i386/kernel/i386_ksyms.c to completely reconfiguring my kernel from a
brand new source tree. Nothing works.

3. Keywords: Kernel, Athlon, _mmx_memcpy, modules

4. Linux kernel version 2.4.20

7.1. Linux persephone 2.4.20 #1 Sun Dec 8 12:07:58 GMT 2002 i686 unknown

Gnu C 2.95.4
Gnu make 3.79.1
util-linux 2.11n
mount 2.11n
modutils 2.4.15
e2fsprogs 1.27
PPP 2.4.1
isdn4k-utils 3.1pre4
Linux C Library 2.2.5
Dynamic linker (ldd) 2.2.5
Procps 2.0.7
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 2.0.11
Modules Loaded rtc 8139too mii iptable_filter ipt_ttl ipt_mark
ipt_limit ipt_length ipt_REJECT ipt_REDIRECT ipt_MASQUERADE ipt_MARK ipt_LOG
ip_conntrack_irc ip_nat_irc iptable_nat ip_tables ip_conntrack ipip
ppp_deflate zlib_inflate zlib_deflate ppp_async dummy bsd_comp ppp_generic
slhc unix

7.2. processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) XP 1800+
stepping : 2
cpu MHz : 1533.701
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3060.53

7.3. rtc 5756 0 (autoclean)
8139too 13568 1 (autoclean)
mii 2160 0 (autoclean) [8139too]
iptable_filter 1728 1
ipt_ttl 640 0 (unused)
ipt_mark 480 0 (unused)
ipt_limit 960 0 (unused)
ipt_length 480 0 (unused)
ipt_REJECT 2848 26
ipt_REDIRECT 800 0 (unused)
ipt_MASQUERADE 1248 1
ipt_MARK 800 0 (unused)
ipt_LOG 3232 0 (unused)
ip_conntrack_irc 3008 1 (autoclean)
ip_nat_irc 2272 0 (unused)
iptable_nat 13748 2 [ipt_REDIRECT ipt_MASQUERADE ip_nat_irc]
ip_tables 10336 13 [iptable_filter ipt_ttl ipt_mark ipt_limit
ipt_length ipt_REJECT ipt_REDIRECT ipt_MASQUERADE ipt_MARK ipt_LOG
iptable_nat]
ip_conntrack 16076 2 [ipt_REDIRECT ipt_MASQUERADE
ip_conntrack_irc ip_nat_irc iptable_nat]
ipip 5856 0 (unused)
ppp_deflate 2944 0
zlib_inflate 18304 0 [ppp_deflate]
zlib_deflate 17504 0 [ppp_deflate]
ppp_async 6304 1
dummy 1056 0 (unused)
bsd_comp 3968 0
ppp_generic 16076 3 [ppp_deflate ppp_async bsd_comp]
slhc 4384 0 [ppp_generic]
unix 13508 14 (autoclean)

8. I've done research and found that people have been experiencing this
problem from linux-2.4.0-test releases. Can someone please fix it?! Or point
me to a patch that works? :( The server's running on a chunky kernel
optimised for the old K6-II (i586).

Kind regards,
Alasdair McWilliam

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