[OpenIndiana-discuss] How is this possible?

[Jacob Ritorto]

Off the cuff guess: differing video card firmware.  My kid's crappy linux
PC had lingering (despite full blow-away-the-whole-disk reinstall) weird
settings that harassed us for months until I found a more severe reset
(different OS), which I presume included fw, but things are so candy-coated
these days with gui installs and hidden antics that it wasn't even clear
how / why it worked.  A very microsoft-esque experience, to say it the most
polite way possible.

On Fri, Apr 16, 2021 at 2:38 PM Reginald Beardsley via openindiana-discuss <
openindiana-discuss at openindiana.org> wrote:

> I have a pair of almost identical Z400s. (In total I have 4.) One has 4x 2
> GB DIMMs (#3)  and the other has 2x 8 GB DIMMs (#4) .  Both have Quadro FX
> 1800 cards and trayless SATA bays.  Both are connected to the monitor
> through an 8 port KVM switch.
>
> Hipster 2020.10 was installed on system #3.  The monitor was recognized
> and configured properly as 1600x1200 using the 340.108 driver.   If I move
> the disk to #4 the nVIDIA driver didn't recognize the monitor or the
> resolution, set 1024x768 and would not allow me to set it to 1600x1200.
>
> I  moved the KVM switch port for #4  to #3 and rebooted 2020.10 on #3.  It
> behaves as expected, recognizes the Samsung Monitor and the correct
> resolution.
>
> After I installed the 2x 8 GB DIMMs S10 u8 kernel panicked on a null
> pointer dereference, so I moved the 2020.10 disk to system #4 and ran it
> for several days to see if fmd would log ECC errors on the DIMMs.  fmdump
> -eV reports the log file is empty after 3 days.  I don't know what whether
> fmd in u8 logs ECC errors as I've never seen any, though I have seen
> occasional ECC errors on system #2 which is running 2017.10
>
> This morning  I put the S10 u8 disks back in the system, booted and
> started scrubs at which point it immediately kernel panicked.  I rebooted
> in single user mode.  Both the root pool 3 way mirror and the RAIDZ1 export
> pool scrubs completed with no errors.
>
> The 3 disks forming the 2 pools were in a 6 DIMM slot Z400 (#1).  That MB
> appears to have a failing SATA controller as it logged so many sector R/W
> errors it rebooted.  I replaced the suspect disk with a new drive of the
> same make, model and vintage.  The errors continued so I switched the  u8
> disks to #4.  A subsequent test of the drive that was reported bad showed
> no errors after a 4 hr scan using the BIOS test.
>
> After verifying that 2020.10 worked properly in #3, I moved the disk back
> to #4.  This time it came up at 960x540!  I changed out the video with the
> card from #1 and again it came up in 960x540. I then moved the video card
> from #3 to #4.  Again, 960x540.  I reset the BIOS to factory defaults,
> changed the things (e.g AHCI) I knew had to be changed.  Again.  Same
> behavior.
>
> If I boot the 2020.10 Live Image on #3 it's 1600x1200.  On #4 it's
> 1024x768.  I tried the video card in the other PCIe slot.  Same result.
>
> I'm completely baffled.    I've never seen anything like this.
>
> Reg
>
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