On Tuesday, December 12, 2017 4:59:19 PM CET Vadim Lomovtsev wrote: > Hi guys, > > While running LTP tests I've faced kernel crash caused by ltp_acpi test case. > I have ACPI support enabled in kernel but kernel is boot with FDT having ACPI > disabled. The ltp_acpi test case application is built along with ltp_acpi_cmds > module to run ACPI tests. > > So my question is - should we update acpica implementation at kernel side by > adding 'acpi_disabled' variable checking to the 'acpi_get_devices' function > (see > patch next to this email, maybe not a good approach) or this should be fixed > at LTP > side so the ltp_acpi_cmds should be updated in order to check if acpi is > enabled > before running tests ?
There should be a check preventing acpi_get_devices() from being called in the acpi_disabled case. acpi_disabled is Linux-specific and the ACPICA code isn't, so the code calling ACPICA functions should check acpi_disabled when necessary. Thanks, Rafael
