[Bugme-new] [Bug 10683] New: ACPI Exception when loading video.ka with custom DSDT

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=10683

           Summary: ACPI Exception when loading video.ka with custom DSDT
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.25
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Power-Video
        AssignedTo: acpi_power-video at kernel-bugs.osdl.org
        ReportedBy: mika.fischer at zoopnet.de


For more details see Bug#10448.

When using the custom DSDT attached to the other bug report (which disables the
AML code which invokes SMI during ACPI video initialization), I get the
following ACPI exception when loading video.ko:
[ACPI Debug]  String: [0x07] "In _DOD"
[ACPI Debug]  String: [0x06] "CADL ="
[ACPI Debug]  Integer: 0x0000000000000002
[ACPI Debug]  String: [0x06] "PSIZ ="
[ACPI Debug]  Integer: 0x0000000000000001
ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFFE [20070126]
Pid: 1146, comm: modprobe Tainted: G       A 
2.6.25-x86-latest.git-06791-gd269f
 [<c023c07d>] acpi_format_exception+0x2b/0x35
 [<c023a2c2>] acpi_ut_exception+0xc/0x43
 [<f8866d06>] acpi_video_bus_add+0xb59/0xb6b [video]
 [<c018e7f6>] sysfs_find_dirent+0x13/0x23
 [<c018f355>] sysfs_create_link+0xa3/0xc2
 [<c023ffde>] acpi_device_probe+0x37/0xcd
 [<c0268688>] driver_probe_device+0x9d/0x114
 [<c0268736>] __driver_attach+0x37/0x55
 [<c026819d>] bus_for_each_dev+0x35/0x57
 [<c026853b>] driver_attach+0x11/0x13
 [<c02686ff>] __driver_attach+0x0/0x55
 [<c0267c6b>] bus_add_driver+0x91/0x192
 [<c02688e1>] driver_register+0x45/0x9a
 [<f883e02f>] acpi_video_init+0x2f/0x4d [video]
 [<c013bd62>] sys_init_module+0x1514/0x163e
 [<c0240311>] acpi_bus_register_driver+0x0/0x38
 [<c01064d2>] sys_mmap2+0x62/0x77
 [<c01037c6>] sysenter_past_esp+0x6a/0x90
 =======================
ACPI Exception (video-1707): UNKNOWN_STATUS_CODE, Cant attach device [20070126]
input: Video Bus as /class/input/input5
ACPI: Video Device [NVID] (multi-head: yes  rom: no  post: no)
input: Video Bus as /class/input/input6
ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)

With the original DSDT, the machine just hangs, but that's because of AML code
which invokes SMI during ACPI video initialization.

dmesg attached


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