Date: Mon, 30 Jul 2012 08:07:20 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-acpi@freebsd.org, sbruno@freebsd.org Subject: Re: Time to increase MAX_TASKS? Message-ID: <201207300807.20225.jhb@freebsd.org> In-Reply-To: <1342730963.2656.5.camel@powernoodle.corp.yahoo.com> References: <1342730963.2656.5.camel@powernoodle.corp.yahoo.com>
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On Thursday, July 19, 2012 4:49:23 pm Sean Bruno wrote: > The new Dell machines are doing a lot more of outstanding ACPI "things" > currently. So much in fact, that they are exceeding ACPI_MAX_TASKS and > are throwing errors indicating thing: > > <snip> > vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on > isa0 > AcpiOsExecute: failed to enqueue task, consider increasing the > debug.acpi.max_tasks tunable > AcpiOsExecute: failed to enqueue task, consider increasing the > debug.acpi.max_tasks tunable > est0: <Enhanced SpeedStep Frequency Control> on cpu0 > .....imecounters tick every 1.000 msec > smbios: System Management BIOS version 2.7 > Profiling kernel, textsize=6861200 [ffffffff8029b190..ffffffff80926320] > usbus0: 480Mbps High Speed USB v2.0 > usbus1: 480Mbps High Speed USB v2.0 > ugen0.1: <Intel> at usbus0 > uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 > ugen1.1: <Intel> at usbus1 > uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 > ipmi0: IPMI device rev. 1, firmware rev. 1.10, version 2.0 > ipmi0: Number of channels 6 > ipmi0: Attached watchdog > AcpiOsExecute: failed to enqueue task, consider increasing the > debug.acpi.max_tasks tunable > mfid0 on mfi0 > </snip> > > the current value in sys/dev/acpica/acpivar.h of 32 is no longer > sufficient on the r420/r320 Sandybridge class of box. > > I am currently running with a value of 128 and doing a bit of testing. I think it should be something like MAX(32, MAXCPU). -- John Baldwin
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