2010-07-29 23:46:31 +00:00
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--- linux-2.6.34.noarch/drivers/acpi/acpica/acconfig.h~ 2010-07-01 14:49:03.000000000 -0400
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+++ linux-2.6.34.noarch/drivers/acpi/acpica/acconfig.h 2010-07-01 14:49:17.000000000 -0400
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@@ -117,7 +117,7 @@
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/* Maximum number of While() loop iterations before forced abort */
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-#define ACPI_MAX_LOOP_ITERATIONS 0xFFFF
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+#define ACPI_MAX_LOOP_ITERATIONS 0xFFFFFF
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/* Maximum sleep allowed via Sleep() operator */
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2011-03-28 19:15:32 +00:00
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--- a/drivers/acpi/acpica/dscontrol.c
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+++ b/drivers/acpi/acpica/dscontrol.c
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@@ -212,6 +212,11 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
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* loop does not implement a timeout.
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*/
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control_state->control.loop_count++;
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+ if ((control_state->control.loop_count > 1) &&
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+ (control_state->control.loop_count % 0xffff == 0))
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+ printk("ACPI: While loop taking a really long time. loop_count=0x%x\n",
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+ control_state->control.loop_count);
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+
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if (control_state->control.loop_count >
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ACPI_MAX_LOOP_ITERATIONS) {
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status = AE_AML_INFINITE_LOOP;
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