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From:   Carlo Pisani <carlojpisani@gmail.com>
Date:   Sun, 12 May 2019 22:44:31 +0200
Message-ID: <CA+QBN9A4PhPZ36otsk0TRaO9KKnKL=hfnskfFJGQJEbtb3=i=Q@mail.gmail.com>
Subject: C3600, sata controller
Cc:     Parisc List <linux-parisc@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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guys,
I asked a friend to lend us his card, which is the card2 listed below
and not things are becoming really weird

card1, Silicon Image, Inc. Adaptec AAR-1210SA
card2, Silicon Image, Inc. SiI 3124 PCI-X Serial ATA

the card1 is a PCI32 bit card, and uses the "sata_sil" driver
the card2 is a PCI64 bit card, and uses the "sata_sil24" driver

card1 is installed in a PCI32 slot, and it's moving 32Gbyte in a loop
without any issue

I have just tested card2 in each of the PCI-X slot (including the 3.3V
one) and ... it has always triggered the HPMC unit, crashing the
machine

the hardware is different, and drivers are also different, but  ....
maybe the problem is related to 32 vs 64bit?

I am going to repeat the test with card2 installed in a PCI32 slot.
This should force it to 32bit: will it work correctly?
(hope this makes sense)

---

we have also checked if the kernel is correctly handling the ram
we have a C3600 with 8Gbyte of ram

mount -t tmpfs -o size=7G tmpfs /mnt/ramdrive/
dd if=/dev/zero of=/mnt/ramdrive/test.bin
badblocks -swv /mnt/ramdrive/test.bin

checking for bad blocks in read-write mode
From block 0 to 7340031
Testing with pattern 0xaa: done
Reading and comparing: done
Testing with pattern 0x55: done
Reading and comparing: done
Testing with pattern 0xff: done
Reading and comparing: done
Testing with pattern 0x00: done
Reading and comparing: done
Pass completed, 0 bad blocks found.

no problems found