When using kvm with a serial console, the serial driver will print out
"too much work for irq4" on any heavy activity (ie vi on a file repainting
the terminal). This message is entirely spurious, as output continues to
work fine. Remove the message as it corrupts screen output and is far too
easy to trigger.
-ben
Signed-off-by: Benjamin LaHaise <bcrl@xxxxxxxxx>
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index f94109c..030b8b5 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1493,12 +1493,8 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id)
l = l->next;
- if (l == i->head && pass_counter++ > PASS_LIMIT) {
- /* If we hit this, we're dead. */
- printk(KERN_ERR "serial8250: too much work for "
- "irq%d\n", irq);
+ if (l == i->head && pass_counter++ > PASS_LIMIT)
break;
- }
} while (l != end);
spin_unlock(&i->lock);
-
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