Frebsd 7-STABLE, atapicd, atapicam and Intel errors [SOLVED]

[Jan Sebosik]

Jeremy Chadwick napsal(a):
> On Wed, Nov 19, 2008 at 12:41:01PM +0100, Jan Sebosik wrote:
>> Andrew Snow napsal(a):
>>> Hi
>>>
>>> I have a P45 chipset but haven't noticed those problems.  I use AHCI  
>>> mode because it enabled hotswap SATA.
>>>
>>> But do you also get error messages on the console about timecount going 
>>> backwards for some processes? I can't make it go away, even if I force  
>>> HPET as a counter
>>>
>>> - Andrew
>> Hi
>>
>> obviously no, I don`t get any messages about time going backwards.
>>
>> I`ve also tryied AHCI mode, but after some mailing with Intel technical  
>> support they claimed to downgrade to native SATA mode (non-AHCI 
>> operation).
> 
> Andrew:
> 
> "Time going backwards" is known to happen on certain systems which use
> features like Intel SpeedStep.  I can reproduce the problem on all sorts
> of server hardware.  It's documented in my Wiki under "Kernel":
> 
> http://wiki.freebsd.org/JeremyChadwick/Commonly_reported_issues
> 
> Power-save modes such as C1E might also cause it, but I've enabled this
> on systems without any repercussions.  Just EIST appears to behave
> oddly, on RELENG_7.  (I've tried EIST on CURRENT, and it seems to behave
> better.  I remember reading about major improvements jhb@ completed
> there which might explain CURRENT working)
> 
> Jan:
> 
> (Quoting you from your misplaced mail to -stable)
> 
>> I thought also about bios bug... it`s pretty new piece of HW with modern
>> chipset (Q45). I believe that the next release of BIOS comes soon.
> 
> The chipset has nothing to do with it.  I can show you two identical
> systems, chipset-wise, and show you BIOS bugs.  The system manufacturer
> is who maintains the BIOS, not the chipset manufacturer.

Thanks for explanation.

>> But what about those atapicd problems? Is it related to SATA interface
>> of DVD/CD drive? Maybe also the LG drive has buggy FW :).
> 
> Now I'm confused.  Didn't we just determine that your acd0 problems
> disappear if you disable HPET in the BIOS (which makes no sense, but it
> works, and is probably a BIOS bug)?  If so, then what's that got to do
> with SATA interfaces or LG optical drives?  Please help me understand.

No, atapicd problems are still there regardless of HPET setting. But 
with HPET enabled, when I kldload atapicd and then try to mount it with 
command "mount -t cd9660 /dev/acd0 /mnt/cd0", I get neverending 
"READ_BIG FAILURE" timeouts.

-- 
Jan Sebosik, Slovakia
sebosik at demax.sk