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

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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you must save your .config to another dir, then make mrproper, then move your .config to your source tree, then make normally.

happens to me when i had an intel configured source tree, then compile for amd.

-solca

On Thursday 14 August 2003 03:02, Alasdair McWilliam wrote:

Hi Alasdair,

urgs, for that long? surprising :)

Could you please try attached patch? Completely untested and just a guess. Please report success/failure. Thanks

ciao, Marc

@@ -40,5 +40,6 @@ obj-$(CONFIG_SMP)		+= smp.o smpboot.o tr
 obj-$(CONFIG_X86_LOCAL_APIC)	+= mpparse.o apic.o nmi.o
 obj-$(CONFIG_X86_IO_APIC)	+= io_apic.o acpitable.o
 obj-$(CONFIG_X86_VISWS_APIC)	+= visws_apic.o
+obj-$(CONFIG_X86_USE_3DNOW)	+= i386_ksyms.o
 
 include $(TOPDIR)/Rules.make