TRAP with ACPI 3.16 on Thinkpad T60 pressing the volume button

[ecsnl]

TRAP occurred sitting in the train listing to music. I had opened the LCD screen and pressed the volume button, got a TRAP 0008, module unknown. CS:EIP 4050:00000117. Could not make a memorydump was running in /APIC /SMP mode.

Refer to ticket 412 for ACPICA$ log for ACPI 3.16 debug build. Was running embedded controller in polling mode.

Just for clarity. Never had these types of traps with ACPI 3.14 and lower on my T60. Just to point out it seems related to ACPI events.

See audio_trap_acpi316.jpg for picture of TRAP screen.

Ignore acpi_plugin_trap.jpg, wrong picture! Both traps are with ACPI 3.16.

[ecsnl]

I had another two traps. Both occurred EXACTLY when pressing the volume button and when closing the stream.

Attached is the TRAP screen I got when I had pressed the volume button. The picture of this second trap is trap_volume_button.jpg The system is completely locked. No memory dump works or CTRL ALT DEL.

[ecsnl]

Ignore acpi_plugin_trap.jpg

[Steven Levine]

A bit of comparative dump analysis tells us that the trap address 4078:117 and 4050:117 are most likely in the uniaud32.sys idc stub at

# ln 4078:117
4078:0000010a UNIAUD32 uniaud_stub_idc + d 
#u 4078:117
4078:00000117 669ae0a04fed6801 call      0168:ed4fa0e0 

and that the call was made with insufficient stack or an unavailable stack. Since it appears that the trap occurred because of some power event, it may be that the IDC call was triggered by ACPI.PSD, but this needs to be determined.

[David Azarewicz]

This ticket is really old and not really relevant to the current software. If you still have problems with the current version, please open a new ticket.