Messages in this thread | | | Date | Sun, 20 Sep 1998 23:35:33 -0700 | From | "David S. Miller" <> | Subject | Re: waitqueue_lock not exported by UP kernels |
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Date: Mon, 21 Sep 1998 02:49:46 +0300 (EEST) From: Hannu Savolainen <hannu@opensound.com>
It looks like symbol waitqueue_lock is not exported as a module symbol when the 2.1.122 kernel is compiled without SMP support. However this symbol is referenced unconditionally by several inline routines in <linux/sched.h>.
This prevents some modules (including OSS) from being loaded in UP compiled systems.
UP and SMP modules cannot be intermixed anyways, the system will likely crash if a module compiled for one is load into the other.
In fact there should be a special module mechanism for this purpose, preventing the loading of modules into the wrong kind of kernel (UP vs. SMP). I thought Alan did something like this already, or did he make this happen only when module symbol versioning is on?
Later, David S. Miller davem@dm.cobaltmicro.com
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