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: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
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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