Date: Wed, 19 Nov 2008 21:16:49 +0100 From: Jan Sebosik <sebosik@demax.sk> To: Jung-uk Kim <jkim@FreeBSD.org>, freebsd-hardware@freebsd.org Subject: Re: Frebsd 7-STABLE, atapicd, atapicam and Intel errors [SOLVED] Message-ID: <49247431.2000800@demax.sk> In-Reply-To: <200811191307.02765.jkim@FreeBSD.org> References: <20081119115311.GA85626@icarus.home.lan> <20081119142829.GA88936@icarus.home.lan> <49244655.3010509@demax.sk> <200811191307.02765.jkim@FreeBSD.org>
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Jung-uk Kim napsal(a): > On Wednesday 19 November 2008 12:01 pm, Jan Sebosik wrote: >> Hi >> >> so I`ve played with it again, and results are strange. >> >> Regardless if HPET is enabled or not.. FreeBSD with atapicd >> kldloaded won`t mount /dev/acd1 (mounting /dev/cd0 works). When I >> tryied to mount acd0 it still hangs at READ_BIG TIMEOUT. >> >> When I left CD in drive, and rebooted (I wanted to switch HPET), >> it freezes on cd0 initialization with READ_BIG timeout (I think >> it`s causing GEOM_LABEL module trying to read CD label). >> >> So I think that disabling GEOM_LABEL would help a little. >> >> I`ll try on friday with another SATA DVD drive if it`s not a bug >> inside firmware of LG :) . >> >> >> Best regards, Jan >> >> Jeremy Chadwick napsal(a): >>> On Wed, Nov 19, 2008 at 03:24:40PM +0100, Jonas Lund wrote: >>>> (NOTICE: i'm more of a lowlevel guy close to hardware guy not >>>> knowing much of freebsd internals) >>>> >>>> The fact that FreeBSD is NOT using HPET for timing might be the >>>> answer to the "mystery". The HPET hardware might be/get enabled >>>> but not handled and firing tons of unexpected interrupts (as you >>>> said.. linux produces tons of data into the log, what's the >>>> actual content of those logs?). >>>> >>>> These interrupts in turn might disturb the cd drive in some >>>> fashion? >>>> >>>> Can you bring up some interrupt statistics in freebsd? like a >>>> counter of the number of events? >>> First and foremost, thanks for chiming in, Jonas. The more eyes >>> on this matter the merrier. >>> >>> vmstat -i can provide interrupt rate and count in FreeBSD, e.g.: >>> >>> interrupt total rate >>> irq1: atkbd0 227 0 >>> irq6: fdc0 10 0 >>> irq17: uhci1++ 4479741 10 >>> cpu0: timer 814684046 2000 >>> irq256: em0 17219212 42 >>> cpu1: timer 814683722 2000 >>> Total 1651066958 4053 >>> >>>> 2008/11/19 Jan Sebosik <sebosik@demax.sk>: >>>>> [snip] >>>>> >>>>>> Okay now I understand. Thank you for taking the time to >>>>>> explain! :-) >>>>>> >>>>>> And when you disable HPET in the BIOS, what happens? >>>>>> >>>>>>> Maybe I should try -CURRENT sometimes with your proposed ata >>>>>>> patches (or are they merged in right now?). >>>>>> Sure, you're free to try CURRENT. The ATA code on CURRENT was >>>>>> modularised, and also a very large patch applied; I can't >>>>>> promise it fixes your CD/DVD drive issues though. >>>>>> >>>>>> I had problems getting CURRENT to see my PCI SATA Promise >>>>>> controller (it wasn't appearing in pciconf -lv, nor dmesg), >>>>>> but I had no problems with CURRENT seeing my ICH7 controller. >>>>>> I also had other problems with CURRENT which caused me to go >>>>>> back to RELENG_7. CURRENT is undergoing lots of changes right >>>>>> now, so I recommend subscribing to -current if you plan on >>>>>> running it. >>>>>> >>>>>> I personally haven't written any ATA patches, except for >>>>>> extending atacontrol to support per-disk write cache >>>>>> enable/disable. I think you might be confusing me with Andrey >>>>>> V. Elsukov, who *has* written lots of ATA stuff. >>>>> Now happens almost nothing (I don`t understand), except the >>>>> cd/acd problems (READ_BIG errors), but I don`t understand why >>>>> it is happening.. maybe guys from Intel optimized this board >>>>> too much for twista OS :). > > Can you try the attached patch with HPET enabled from BIOS? Sorry, it > will not solve the cd/acd problems but I have a hunch that it may > solve the HPET problem. > > Thanks, > > JK Hi I`ve tried your patch right now, but didn`t notice any change in machine`s behavior. Thanks for your interest and time. Best regards -- Jan Sebosik, Slovakia sebosik@demax.sk
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