Hello ACPI gurus, I'm experiencing a NULL pointer dereference on acpi_ds_load1_begin_op() from drivers/acpi/acpica/dswload.c, when running on a Acer Aspire E14 ES1-432-P06A laptop. Before the kernel panic stack trace, I see the following warnings and error (sorry for any typos, as I had to manually type this): ACPI Core revision 20160422 ACPI Warning: Unsupported module-level executable opcode 0x80 at table offset 0x0190 (20160422/psloop-222) ACPI Warning: Unsupported module-level executable opcode 0x80 at table offset 0x0196 (20160422/psloop-222) ACPI Error: Unknown opcode 0x03 at table offset 0x0171, ignoring (20160422/psobject-108) I'm not exactly sure how to map these addresses to the DSDT ASL code, so any suggestions in that direction or to better understand the whole picture are appreciated. The disassembled DSDT can be found here: https://gist.github.com/jprvita/c6373856f6672a06b9031c67e2980bdd, and I can provide the binary tables if necessary. The following patch fixes the NULL pointer dereference, and things seem to be working normally. João Paulo Rechi Vita (1): acpi: Check walk_state->scope_info before dereferencing drivers/acpi/acpica/dswload.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.8.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
