The patch below might fix the ksoftirqd load average >= 1 problem.
I can't reproduce it, but in chasing it in one of Chris Aker's
non-debuggable images, I uncovered this bug.
Testing and feedback are welcome.
It's applied against my incrementals, but it should be easy to apply
in any other UML.
Jeff
Index: linux-2.6.12/arch/um/kernel/time_kern.c
===================================================================
--- linux-2.6.12.orig/arch/um/kernel/time_kern.c 2005-07-26
16:46:19.000000000 -0400
+++ linux-2.6.12/arch/um/kernel/time_kern.c 2005-07-26 18:46:09.000000000
-0400
@@ -189,8 +189,10 @@
void timer_handler(int sig, union uml_pt_regs *regs)
{
local_irq_disable();
+ irq_enter();
update_process_times(CHOOSE_MODE(user_context(UPT_SP(regs)),
(regs)->skas.is_user));
+ irq_exit();
local_irq_enable();
if(current_thread->cpu == 0)
timer_irq(regs);
-------------------------------------------------------
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