Wintersdark

Sure, do nothing. Don't install Intel GPU Top, don't have modprobe lines to install the GPU drivers. If you just run Unraid out of the box on 12th gen, and don't do anything with the iGPU then there's no problem at all an 12th gen works very well. Well, I don't know if the current governer works correctly with P/E cores, as I've got a 12400 (only P cores), but it's stable regardless.

Alder Lake doesn't work with Jellyfin on Unraid, though. Still crashes when HW transcoding. Likewise, Plex on Ubuntu now has working HW transcoding. The problem is Kernel + Specific ICR version. Unraid will crash on Alder Lake if you enable the GPU even WITHOUT actually hardware transcoding.

Release dates are always up in the air, but in this case the problem is already solved, it's just a matter of Lime releasing a version of Unraid with the correct kernel and ICR versions packaged. As this is a fairly major thing in bringing on full support for 12th gen Intel processors, I expect it's going to be somewhat of a priority. I'd be very surprised if it didn't happen (at least with RC versions) inside a couple months.

10th gen doesn't need a Nvidia card. My old system, an 8th gen pentium, could easily handle 12 concurrent transcodes on the igpu, and only met it's limits because the cpu couldn't really handle the audio transcoding. Something an Nvidia GPU couldn't do without messing around with drivers due to the transcode limit. I really regret having sold it when I built the 12400k server

As he said, no hardware transcoding *for now*. Given that working versions exist for the Plex, the kernel and ICR, it's just a wait till Unraid packages up and tests stuff for the next release of Unraid. Obviously I can't guess at when that will be, but I'd hazard a guess that they'll take this seriously and get the update ready ASAP.

Ooooh I understand! Perhaps you'd be better served getting a 10 series Intel CPU and motherboard instead of Alder Lake? No worries about iGPU compatibility that way but still excellent performance. Very good prices now, too. A 10600 or 10700 would perform extremely well.

Sorry? Are you not running Alder Lake? Why can't you run a newer Unraid version?if you ARE on Alder Lake, you can't use hardware transcoding eight now without making your system unstable because, as I said, the current Linux kernel in Unraid doesn't support it. What's stopping you from upgrading your Unraid installation? My system is running a lot of *very* old tech, PCIe 2 HBA's and the like, and it's working just fine.

Because Alder Lake is new. The problem is already technically sorted out, it's just a matter of the correct ICR version and Linux kernels getting pushed down stream. The current Linux kernel in Unraid doesn't support Alder Lake iGPU's properly. It's already working in Plex for Ubuntu.

Wish that was more reasonably priced without hassles. If you want 4k HEVC transcodes, and no transcode limit... Fairly significant money for capability you already have

I installed IntelGPUTop again and Jellyfin, system crashed some 18 hours in *without* transcoding (Plex does this too)

You're not disagreeing, you're running the RC kernel. I'm talking about the stock Unraid kernel. It's very likely a Plex bug though, not Unraid, as mine crashed with Plex running even when not transcoding, but with the driver loaded.

Nope, stock kernel definitely crashes on the 12400. I think I got two days once, but roughly once a day crashes. Heavy use server, mind you, it wouldn't just crash when it transcodes a particular file, it would often do several just fine. But hard crashes inevitably.

And continuing to document, just in case anyone else has a similar problem in the future. Still up and stable after 36 hours, that's better than I've managed since 6.10 dropped where I never managed 24 hours. This, with docker just turned off. I'm going to leave it tonight, and if it's still running tomorrow after work I'm going to re-enable Docker, and everything except Plex (where I have a temporary instance up and running on another machine currently). I feel Plex is the most likely culprit, even though it's currently not set up to hardware transcode.

Good luck. Mine would crash pretty much randomly, but it'd last for 8-24 hours generally. Sadly since 6.10 official release it's crashed even more often *without* hardware transcoding or GPU drivers whatsoever. *Sighs*

I should try a 6.9 version, just to see. This current problem started with 6.10. That's nerve wracking though, because that can't be a long term solution.

Well, still crashing daily; often in less than a day. Nothing in logs illustrating why. Shutting down docker entirely and running as a pure NAS for a while to see how that goes. Gotta say, though, this is not a good experience for someone new to Unraid. I'd love more tools to see what's going on and why it's crashing - I mean, if it is something docker, isn't that largely the point of docker? That an individual container crashing doesn't take the whole system down?

So, for reference for anyone else who happens by: Disabled my 2.5gbps onboard LAN, replaced with an older Intel 4-port lan card. Unraid still freezes intermittently, however it doesn't take my router down too. Small wins, I suppose. Next steps: Realized I was still running Intel GPU Top (though *not* passing through anything to Plex; Plex has no /dev/dri folder). Because the 12400's GPU is a known source of crashes, I removed that as well. This wasn't a problem pre-6.10, but daily crashes ever since the upgrade have been frustrating. If it still crashes, I'll shut down docker as well and run it as a pure NAS for a while and see.

Sorry, I assumed that was in the diagnostics zip. The most recent crash happened sometime may 23 morning: May 23 03:33:07 Tuna CA Backup/Restore: ####################### May 23 03:33:07 Tuna CA Backup/Restore: Deleting /mnt/user/backup/appdata_backups/[email protected] May 23 03:33:07 Tuna CA Backup/Restore: Deleting /mnt/user/backup/appdata_backups/[email protected] May 23 03:33:07 Tuna CA Backup/Restore: Backup / Restore Completed May 23 03:40:01 Tuna kernel: mdcmd (36): set md_write_method 1 May 23 03:40:01 Tuna kernel: May 23 18:31:49 Tuna kernel: microcode: microcode updated early to revision 0x1f, date = 2022-03-03 May 23 18:31:49 Tuna kernel: Linux version 5.15.40-Unraid (root@Develop) (gcc (GCC) 11.2.0, GNU ld version 2.37-slack15) #1 SMP Mon May 16 10:05:44 PDT 2022 May 23 18:31:49 Tuna kernel: Command line: BOOT_IMAGE=/bzimage initrd=/bzroot May 23 18:31:49 Tuna kernel: x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks A look into docker containers logs (no VM's running) show an abrupt stop of logging with the last entries ~ 07:30 - 07:40, though none have errors there an end then followed by the restart in the evening. syslog

Several times since the 6.10 upgrade, my unraid server has crashed, and in such a way as to take my router down with it. I'm attaching both the server's diagnostics .zip and my router's syslog (note: you can see the crashes based on when the dates in syslog.txt revert to "May 4" until the NTP update. Server on eth3 on the router.). This DID happen once before the 6.10 release (though I believe it was on an early 6.10 RC build), but it's been much more frequent since. I need to restart my router (which returns my LAN to normal) and then the server itself. Of course, this constitutes an unclean shutdown and has caused some issues. It's a hard crash for the server, though; even with a locally attached keyboard and monitor, not even keyboard lights(numlock etc) work. I'm kind of at a loss as to what's happening, but it's a new Alder Lake system - Gigabyte Z690 UD DDR4 motherboard, and Intel 12400 CPU. I am NOT hardware transcoding in plex - that causes hard crashes too, but doesn't take the LAN down with it. I'm wondering if it's something to do with the 2.5gbe motherboard LAN? I vaguely remember reading about some issues there? Any ideas of what's happening, or how to troubleshoot it? tuna-diagnostics-20220521-0931.zip syslog.txt

Yeah, at first I was confused because I had crashes when nobody was watching anything, but when Plex is detecting intros on new media that is added it's transcodes the start of the file and that can cause it too.

Yep, my 12400 crashes too, exactly as the 12600 ones do. Mine is not a -T model, though, just the base 12400.

So, the overwhelming majority of us have been able to get it working doing just that. It works fine. But we've ended up with system wide hard locks. It's not about e-cores, as I get them on my 12400 and it has none. Maybe the T version is different? Has a different iGPU? I don't know. But I'd get (like everyone else) hard crashes every couple days. The frequency *seems* to depend on how busy your Plex server is - mine does probably somewhere in the neighborhood of 30 transcodes per day and many more direct play streams.

Only 12th gen. The 11700 is roughly comparable in power to the 12600 as well, so you're not getting a weaker system, and you'll end up with likely a cheaper motherboard too. I deeply regret doing the 12400 thing myself, but it's way too late unfortunately.

Eeeeeh I mean, 2 4k HEVC transcodes maybe. But if he's serving multiple people it's a very different story. My old G5400 Celeron could easily handle 12 concurrent 1080p transcodes and a 4k HEVC transcode. Meanwhile, my current 12400 struggles to manage 4 concurrent transcodes, and starts buffering if any cpu power is used anywhere else. It's a huge problem for me, because the brand new 12400 is wildly inferior in practice to the crappy old *dual core* 2.5ghz Celeron.

I'd *strongly* recommend waiting. If you really want to upgrade now, maybe get an 11700 instead.