Hi,
I'm trying out PVFS2 on a Debian/sarge system with kernel 2.6.8. I
compiled the pvfs2 kernel module just fine, but it wouldn't load:
fredo# modprobe pvfs2
FATAL: Error inserting pvfs2
(/lib/modules/2.6.8-2-686-smp/kernel/fs/pvfs2.ko): Unknown symbol in
module, or unknown parameter (see dmesg)
and in /var/log/kern.log:
Mar 23 10:51:36 fredo kernel: pvfs2: Unknown symbol mmput
Mar 23 10:51:36 fredo kernel: pvfs2: Unknown symbol mmgrab
I recompiled the kernel after adding the following two lines:
diff -ur kernel-source-2.6.8/kernel/fork.c
kernel-source-2.6.8-patched/kernel/fork.c
--- kernel-source-2.6.8/kernel/fork.c 2004-08-14 07:36:16.000000000 +0200
+++ kernel-source-2.6.8-patched/kernel/fork.c 2006-03-22
20:31:54.000000000 +0
100
@@ -466,6 +466,8 @@
}
}
+EXPORT_SYMBOL_GPL(mmput);
+
/*
* Checks if the use count of an mm is non-zero and if so
* returns a reference to it after bumping up the use count.
@@ -483,6 +485,8 @@
return mm;
}
+EXPORT_SYMBOL_GPL(mmgrab);
+
/* Please note the differences between mmput and mm_release.
* mmput is called whenever we stop holding onto a mm_struct,
* error success whatever.
With this patch in place, the module loads fine. Any comments?
Alex
--
Alexander Jolk / BUF Compagnie
tel +33-1 42 68 18 28 / fax +33-1 42 68 18 29
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