Date: Mon, 19 May 2003 13:08:17 -0700 From: Lars Eggert <larse@ISI.EDU> To: Dan Nelson <dnelson@allantgroup.com> Cc: current@freebsd.org Subject: Re: Interrupt latency problems Message-ID: <3EC939B1.8020606@isi.edu> In-Reply-To: <20030519200002.GE39543@dan.emsphone.com> References: <20030511.143231.133432780.imp@bsdimp.com> <1052692357.4921.128.camel@cf.freebsd-services.com> <16062.59918.302092.929640@curly.cs.duke.edu> <1052703871.4921.146.camel@cf.freebsd-services.com> <16063.38255.961273.900146@grasshopper.cs.duke.edu> <20030512124753.GA48753@survey.codeburst.net> <16063.39366.930707.980678@grasshopper.cs.duke.edu> <20030512130949.GB48440@survey.codeburst.net> <1053372251.815.50.camel@cf.freebsd-services.com> <3EC93331.7090004@isi.edu> <20030519200002.GE39543@dan.emsphone.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This is a cryptographically signed message in MIME format.
--------------ms070202040807040203040103
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Dan Nelson wrote:
> In the last episode (May 19), Lars Eggert said:
>
>>Paul Richards wrote:
>>
>>>I'm also not sure why a lot more people aren't seeing this, unless
>>>my motherboard is odd in sharing the acpi interrupt with a pci
>>>slot.
>>
>>I tried to see if this is the case on my SMP board, but I don't seem
>>to have acpi attached to any interrupt:
>>
>>[root@nik: ~] ps -axg | grep irq
>> 24 ?? WL 0:00.00 (irq18: mpt0)
>> 25 ?? WL 0:19.30 (irq19: em0 mpt1)
>> 26 ?? WL 0:00.00 (irq16: xl0 uhci1)
>> 27 ?? WL 1:57.07 (irq17: fwohci0 drm0)
>> 28 ?? WL 1:09.27 (irq13: em1 ichsmb0)
>> 29 ?? WL 0:00.02 (irq20: pcm0)
>> 30 ?? WL 0:02.19 (irq2: uhci0 bktr0)
>> 31 ?? WL 0:02.84 (irq14: ata0)
>> 32 ?? WL 0:00.00 (irq15: ata1)
>> 36 ?? WL 0:00.00 (irq6: fdc0)
>> 37 ?? WL 0:00.00 (irq1: atkbd0)
>>
>>Is this the right way to check for this?
>
>
> You sure you have acpi loaded? It shows up for me:
>
> $ ps ax | grep acpi0
> 22 ?? WL 0:00.00 (irq9: acpi0)
I'm pretty sure I do - maybe acpi irq handling is different with an SMP
kernel?
[larse@nik: ~] ps ax | grep acpi
5 ?? IL 0:00.00 (acpi_task0)
6 ?? IL 0:00.00 (acpi_task1)
7 ?? IL 0:00.00 (acpi_task2)
78714 p4 LV+ 0:00.00 grep acpi (tcsh)
[larse@nik: ~] kldstat | grep acpi
46 1 0xc068b000 48514 acpi.ko
[larse@nik: ~] grep -i acpi /var/run/dmesg.boot
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc06d6fa8.
Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
acpi0: <DELL WS 530 > on motherboard
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-fast" frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_cpu1: <CPU> on acpi0
acpi_cpu2: <CPU> on acpi0
acpi_cpu3: <CPU> on acpi0
<...>
> Maybe the attach message to acpi should print the IRQ it's using. All
> I get in dmesg is "acpi0: <ASUS CUV4X-D > on motherboard".
Lars
--
Lars Eggert <larse@isi.edu> USC Information Sciences Institute
--------------ms070202040807040203040103
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature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--------------ms070202040807040203040103--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3EC939B1.8020606>