[realtek] insmod problem

Donald Becker becker@scyld.com
Sat Jan 5 08:39:00 2002

On Sat, 5 Jan 2002, Jason Bond wrote:

> I have downloaded the files pci-scan.h, pci-scan.c, kern_compat.h, rtl8139.c
> I have gcc'd pci-scan.c and rtl8139.c successfully with the following
> commands as per the lines at the end of the source files.
> gcc -DMODULE -Wall -Wstrict-prototypes -O6 -c rtl8139.c
> gcc -DMODULE -D__KERNEL__ -DEXPORT_SYMTAB -Wall -Wstrict-prototypes -O6 -c
> pci-scan.c
> the insmod command with both pci-scan.o and rtl8139.o gives me unresolved
> symbol errors.
> /lib/modules/2.2.18pre21/net/pci-scan.o: unresolved symbol
> pci_write_config_byte
> /lib/modules/2.2.18pre21/net/pci-scan.o: unresolved symbol
> apm_register_callback
> /lib/modules/2.2.18pre21/net/pci-scan.o: unresolved symbol kfree

You have compiled against the wrong header files, or perhaps against the
correct header files with the wrong options.  Use the suggestions in

Likely adding
to the compile line will be enough to fix the problem.

> going through the realtek archives reveals that this not many people have
> this exact problem. If anyone can shed some light on this problem I would be
> eternally grateful.

This is caused by every distribution (Red Hat, Debian) doing something
different with kernel header files.  Even updates within a single
release number have changed the location of the header files and how
they should be accessed.

[[ For the record, I protested against the glibc-related header file
changes that caused this problem.  A change was needed, but the hacked
"fix" is worse than the original problem.]]

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
Annapolis MD 21403			410-990-9993