Messages in this thread Patch in this message | | | Subject | Re: pre-empt and smp in 2.5.37 - is it supposed to work? | From | Robert Love <> | Date | 20 Sep 2002 16:09:22 -0400 |
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On Fri, 2002-09-20 at 16:04, Jurriaan wrote:
> I get a large screen full of hex addresses even before my framebuffer > activates, so I wonder if breakage when using preempt and smp is a known > issue in 2.5.37 or not?
You need this yet-to-be-merged patch. It should work fine with it.
It is just an overzealous debugging test..
Robert Love
diff -urN linux-2.5.37/kernel/sched.c linux/kernel/sched.c --- linux-2.5.37/kernel/sched.c Fri Sep 20 11:20:32 2002 +++ linux/kernel/sched.c Fri Sep 20 15:49:05 2002 @@ -940,8 +940,17 @@ struct list_head *queue; int idx; - if (unlikely(in_atomic())) - BUG(); + /* + * Test if we are atomic. Since do_exit() needs to call into + * schedule() atomically, we ignore that path for now. + * Otherwise, whine if we are scheduling when we should not be. + */ + if (likely(current->state != TASK_ZOMBIE)) { + if (unlikely(in_atomic())) { + printk(KERN_ERR "bad: scheduling while atomic!\n"); + dump_stack(); + } + } #if CONFIG_DEBUG_HIGHMEM check_highmem_ptes(); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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