scottl at samsco.org
Wed Apr 6 09:09:58 PDT 2005
The lack of PAE support for aac in 4.11 is unfortunately correct. It
would probably take 1-2 days to backport it, but it hasn't been a
high priority so far.
Ken Menzel wrote:
> from "man aac" BUGS section (near the bottom):
> This driver will not work on systems with more than 4GB of memory.
> My comment:
> If you want more than 4G with aac controller try FreeBSD 5.3 or 5.4
> ----- Original Message ----- From: "Jeremy Bogan" <jeremy at segpub.com.au>
> To: <freebsd-stable at freebsd.org>
> Sent: Tuesday, April 05, 2005 9:41 AM
> Subject: 4.11-STABLE/PAE
>> We've recently loaded FreeBSD 4.11-STABLE with PAE support onto one
>> of our brand new Dell PowerEdge 2650's. The box has 6GB RAM and with
>> PAE support compiled into our kernel can see it all fine. However
>> when we start doing disk intensive stuff like compiling, our RAID
>> appears to spack out and cause the system to freeze and require a
>> reboot. When logging in via console we see:
>> aac0: COMMAND TIMEOUT AFTER 1540 SECONDS
>> repeated continuously.
>> Apr 5 22:10:24 luke1 /kernel: CPU: Intel(R) Xeon(TM) CPU 3.06GHz
>> (3050.63-MHz 686-class CPU)
>> Apr 5 22:10:24 luke1 /kernel: Origin = "GenuineIntel" Id = 0xf29
>> Stepping = 9
>> Apr 5 22:10:24 luke1 /kernel:
>> Apr 5 22:10:24 luke1 /kernel: Hyperthreading: 2 logical CPUs
>> Apr 5 22:10:24 luke1 /kernel: real memory = 6442450944 (6291456K bytes)
>> Apr 5 22:10:24 luke1 /kernel: avail memory = 6000644096 (5860004K bytes)
>> When disabling PAE support everything appears to be perfectly fine,
>> but we're only able to address 4GB out of our 6GB. Just wondering if
>> anyone else has experienced this or has any insight.
>> The system is running RAID5 with 4 x 73GB SCSI drives:
>> Apr 5 22:30:03 luke1 /kernel: aac0: <Dell PERC 3/Di> mem
>> 0xf0000000-0xf7ffffff irq 16 at device 8.1 on pci4
>> Apr 5 22:30:03 luke1 /kernel: aac0: i960RX 100MHz, 118MB cache
>> memory, optional battery present
>> Apr 5 22:30:03 luke1 /kernel: aac0: Kernel 2.8-0, Build 6092, S/N 64a1d3
>> Apr 5 22:30:03 luke1 /kernel: aac0: Supported
>> Thanks :)
>> jeremy bogan [ jeremy at segpub.com.au ]
>> segment publishing - design.develop.host
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