Hello, Could you please advice me how to increase ACPI_MAX_TASKS from 32 (default) to 64 or 128 ?
(1) I am running FreeBSD 9.1-RELEASE-p6, which was updated via freebsd-update. # uname -srmv FreeBSD 9.1-RELEASE-p6 FreeBSD 9.1-RELEASE-p6 #0: Wed Aug 21 20:40:52 UTC 2013 [email protected]:/usr/obj/usr/src/sys/GENERIC amd64 (2) Now, dmesg shows an error regarding AE_NO_MEMORY. # dmesg (snip) AcpiOsExecute: failed to enqueue task, consider increasing the debug.acpi.max_tasks tunable ACPI Error: Method parse/execution failed [\\_SB_.PCI0.HEC2.HSCI] (Node 0xfffffe001d208380), AE_NO_MEMORY (20110527/psparse-560) ACPI Error: Method parse/execution failed [\\_GPE._L06] (Node 0xfffffe001d20c6c0), AE_NO_MEMORY (20110527/psparse-560) ACPI Exception: AE_NO_MEMORY, while evaluating GPE method [_L06] (20110527/evgpe-606) AcpiOsExecute: failed to enqueue task, consider increasing the debug.acpi.max_tasks tunable (snip) If needed, I will show all dmesg output. please request. (3) This is because ACPI_MAX_TASKS is defined as 32 in /usr/src/sys/dev/acpica/acpivar.h ===== /* Default maximum number of tasks to enqueue. */ #ifndef ACPI_MAX_TASKS #define ACPI_MAX_TASKS 32 #endif ===== (4) When I rewrite it to 64, the error in dmesg disappeared. So far so good, but I have to re-compile the kernel in this case. If possible, I'd like to change ACPI_MAX_TASKS value by sysctl.conf or something like that. (5) /usr/src/sys/dev/acpica/Osd/OsdSchedule.c mentions debug.acpi.max_tasks. ===== /* * Allow the user to tune the maximum number of tasks we may enqueue. */ static int acpi_max_tasks = ACPI_MAX_TASKS; TUNABLE_INT("debug.acpi.max_tasks", &acpi_max_tasks); ===== But, I cannot write this sysctl tunable. That is "unknown oid". # sysctl debug.acpi.max_tasks sysctl: unknown oid 'debug.acpi.max_tasks' # sysctl -w debug.acpi.max_tasks=64 sysctl: unknown oid 'debug.acpi.max_tasks' (6) If I have to re-compile the GENERIC kernel, where should I define ACPI_MAX_TASKS ? /etc/make.conf? kernel configuration file? or acpivar.h ? Thank you very much!! Best Regards -- moto kawasaki <[email protected]> 090-2464-8454 _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "[email protected]"
