Loading Documentation/admin-guide/kernel-parameters.txt +8 −0 Original line number Diff line number Diff line Loading @@ -190,6 +190,14 @@ Kernel parameters unusable. The "log_buf_len" parameter may be useful if you need to capture more output. acpi.poweroff_on_fatal= [ACPI] {0 | 1} Causes the system to poweroff when the ACPI bytecode signals a fatal error. The default value of this setting is 1. Overriding this value should only be done for diagnosing ACPI firmware problems, as the system might behave erratically after having encountered a fatal ACPI error. acpi_enforce_resources= [ACPI] { strict | lax | no } Check for resource conflicts between native drivers Loading drivers/acpi/osl.c +18 −1 Original line number Diff line number Diff line Loading @@ -13,6 +13,8 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/panic.h> #include <linux/reboot.h> #include <linux/slab.h> #include <linux/mm.h> #include <linux/highmem.h> Loading Loading @@ -70,6 +72,10 @@ static bool acpi_os_initialized; unsigned int acpi_sci_irq = INVALID_ACPI_IRQ; bool acpi_permanent_mmap = false; static bool poweroff_on_fatal = true; module_param(poweroff_on_fatal, bool, 0); MODULE_PARM_DESC(poweroff_on_fatal, "Poweroff when encountering a fatal ACPI error"); /* * This list of permanent mappings is for memory that may be accessed from * interrupt context, where we can't do the ioremap(). Loading Loading @@ -1381,9 +1387,20 @@ acpi_status acpi_os_notify_command_complete(void) acpi_status acpi_os_signal(u32 function, void *info) { struct acpi_signal_fatal_info *fatal_info; switch (function) { case ACPI_SIGNAL_FATAL: pr_err("Fatal opcode executed\n"); fatal_info = info; pr_emerg("Fatal error while evaluating ACPI control method\n"); pr_emerg("Type 0x%X Code 0x%X Argument 0x%X\n", fatal_info->type, fatal_info->code, fatal_info->argument); if (poweroff_on_fatal) orderly_poweroff(true); else add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK); break; case ACPI_SIGNAL_BREAKPOINT: /* Loading Loading
Documentation/admin-guide/kernel-parameters.txt +8 −0 Original line number Diff line number Diff line Loading @@ -190,6 +190,14 @@ Kernel parameters unusable. The "log_buf_len" parameter may be useful if you need to capture more output. acpi.poweroff_on_fatal= [ACPI] {0 | 1} Causes the system to poweroff when the ACPI bytecode signals a fatal error. The default value of this setting is 1. Overriding this value should only be done for diagnosing ACPI firmware problems, as the system might behave erratically after having encountered a fatal ACPI error. acpi_enforce_resources= [ACPI] { strict | lax | no } Check for resource conflicts between native drivers Loading
drivers/acpi/osl.c +18 −1 Original line number Diff line number Diff line Loading @@ -13,6 +13,8 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/panic.h> #include <linux/reboot.h> #include <linux/slab.h> #include <linux/mm.h> #include <linux/highmem.h> Loading Loading @@ -70,6 +72,10 @@ static bool acpi_os_initialized; unsigned int acpi_sci_irq = INVALID_ACPI_IRQ; bool acpi_permanent_mmap = false; static bool poweroff_on_fatal = true; module_param(poweroff_on_fatal, bool, 0); MODULE_PARM_DESC(poweroff_on_fatal, "Poweroff when encountering a fatal ACPI error"); /* * This list of permanent mappings is for memory that may be accessed from * interrupt context, where we can't do the ioremap(). Loading Loading @@ -1381,9 +1387,20 @@ acpi_status acpi_os_notify_command_complete(void) acpi_status acpi_os_signal(u32 function, void *info) { struct acpi_signal_fatal_info *fatal_info; switch (function) { case ACPI_SIGNAL_FATAL: pr_err("Fatal opcode executed\n"); fatal_info = info; pr_emerg("Fatal error while evaluating ACPI control method\n"); pr_emerg("Type 0x%X Code 0x%X Argument 0x%X\n", fatal_info->type, fatal_info->code, fatal_info->argument); if (poweroff_on_fatal) orderly_poweroff(true); else add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK); break; case ACPI_SIGNAL_BREAKPOINT: /* Loading
