Bug 7873

Summary:	AE_STACK_OVERFLOW exception on nested calls to methods
Product:	ACPI	Reporter:	Valery A Podrezov (Valery.A.Podrezov)
Component:	ACPICA-Core	Assignee:	Robert Moore (Robert.Moore)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	acpi-bugzilla
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	ASL code to reproduce the bug Bug-fixing patch

Description Valery A Podrezov 2007-01-23 11:28:18 UTC

Most recent kernel where this bug did *NOT* occur:
Distribution:
Hardware Environment:
Software Environment:
Problem Description:

The Linux kernel ACPI interpreter fails the following
AML test when it is compiled into a simulator.  So
if an OEM BIOS includes this code, Linux would fail.

Steps to reproduce:

Run interpreter with the demo code attached.

INTERNAL BUG NUMBER:
   262

Result stack overflow is unexpectedly emitted on interpretation of the AML
code containing a method call expression with deeply nested calls (see demo).

Comment 1 Valery A Podrezov 2007-01-23 11:53:01 UTC

Created attachment 10160 [details]
ASL code to reproduce the bug

Comment 2 Valery A Podrezov 2007-01-23 11:53:58 UTC

Created attachment 10161 [details]
Bug-fixing patch

Comment 3 Lin Ming 2007-08-08 22:37:48 UTC

this patch works well in version 20061109 of ACPICA
and, the bug has gone in version 20070508 of ACPICA

thanks:)

Comment 4 Len Brown 2008-06-13 20:21:59 UTC

ACPICA 20070508 shipped in Linux-2.6.26-rc1

closed.