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Z170A-X1/3.1 Bios update causing kernel panic
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Karai17 View Drop Down
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    Posted: 01 Sep 2016 at 1:47pm
Hello, I've been having issues with my LAN since I got this motherboard. I tried running a bios update to the latest firmware (2.20) and since then I've been getting a kernel panic during OS handoff on both Windows and Linux. I tried returning to the original firmware (1.50) and that did not fix the panics.

After some tinkering, it seems like I can only run my CPU at 1 core with or without hyperthreading enabled. Any ideas on why this may be happening? Before I upgraded (and reverted) my firmware, I was running at full 4 cores + hyperthreading.

CPU: Intel Core i7 6700K
Ram: 2x 8GB DDR 4 2133
Mobo: ASRock Z170A-X1/3.1
Firmware: 1.50, 2.20
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Karai17 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karai17 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Sep 2016 at 4:47pm
Here is a my Linux boot log, there is clearly something bad going on here...



Edited by Karai17 - 01 Sep 2016 at 5:20pm
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wardog View Drop Down
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Clear, not simply Reset, the BIOS and post back the results please.
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Karai17 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karai17 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2016 at 4:46am
I removed the CMOS battery and disconnected power from the wall. Everything is still bad.

The gist link I posted is apparently a known bug in many ASRock motherboards and I "fixed" that by telling the kernel to ignore the issue instead of logging it (which was eating up several GB/hr of space). My kernel panics persist.



Edited by Karai17 - 03 Sep 2016 at 4:46am
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wardog View Drop Down
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Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2016 at 6:16am
Please refrain from accosting my help here as I know absolutely squat in regards to linux. PIDs I do recognize. 


Your gist log states a PID of 18186

?? Post 4 of Petr's
https://bugzilla.redhat.com/show_bug.cgi?id=1351368


Also, what OS and what kernel are you using?


Try something for me please. Disable HPET in the BIOS, then run a Live CD with a new(er?) kernel.

I'll pass this up to the BIOS gods at ASRock after you posting the results on running a Live CD.
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Karai17 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karai17 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2016 at 7:47am
I am running Fedora 24, kernel 4.6.7. I tried the experimental 4.7.2 kernel with HPET disabled and I get my lovely kernel panics. I also tried using the Fedora 24 liveusb to no avail.

Edited by Karai17 - 04 Sep 2016 at 7:49am
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wardog View Drop Down
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Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2016 at 1:57pm
Originally posted by wardog wardog wrote:


I'll pass this up to the BIOS gods at ASRock after you posting the results on running a Live CD.


Gotcha. Let's see what the BIOS Gods can produce in the way of a new BIOS.



And for sh*ts n grins, do you have a CD/DVD/BD attached to one of the 6 native SATA ports?

Complete and ignorant noob that I am to BIOS programming, bored today I did some reading into it this and am left with this relating to SATA RTD3 states. ie: CD drives that don't issue/follow properly. I dunno. Just conjecture on my part.

The not serialized errors in your log took me down this rabbit hole I went today. I didn't find references to RTD3 concerning COM or LPT ports. Those three cover any serialized or not serialized on this board that I'm aware. It doesn't have a third party SATA controller so that rules that out too.
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wardog View Drop Down
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Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2016 at 3:08pm
Still have my head in this for the meantime. Unfortunately, my head may be in my bung hole concerning this too Embarrassed

https://software.intel.com/sites/default/files/article/402347/linux-power-efficiency-analysis-methods-2.pdf

See pg.29 Section 5.1.3
Quote
5.1.3 SATA Devices

The SATA specification describes a power management feature for SATA devices, referred to as ALPM (Advanced Link Power Management). This feature allows the attached disk to switch between five distinct power phases:
 
??Active: Device is active and consuming the nominal amount of power.
??Partial: Device is in partial sleep. Wakeup latency is low (<10 µs). Marginal amount of power saving.
??Slumber: Device is sleeping, but power is maintained. Higher wakeup latency (<10ms). More power saving.
??DevSleep: Device is completely turned off, but power is maintained. Marginally higher wakeup latency (<20ms). Considerably higher power savings.
??RTD3: Device is completely turned off. Very high wakeup latency, with zero power consumption.


BIOS > Advanced > Storage Management : SATA Aggressive Link Power Management - Toggle this Enabled and Disabled and check panic state in both


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wardog View Drop Down
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Dang, oops.

Also, see the hdparm tips on the bottom of pg.29

Maybe?
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Karai17 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Karai17 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2016 at 5:53pm
I don't have any optical drives. I have two SSDs and one HDD plugged into SATA_1, SATA_2, and SATA_3.

I'll check out those options tomorrow once I get some rest. :)
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