On Sat, Jul 15, 2023, at 5:38 PM, Julian Huhn wrote: > On Sat, Jul 15, 2023 at 06:05:06PM +0000, Mike Larkin wrote: >>On Sat, Jul 15, 2023 at 04:34:20PM +0200, Julian Huhn wrote: >>> Since I got many DMARC rejection mails and therefore don't know how many >>> people this mail reached at all, once again with less restrictive DMARC >>> settings. >>> >>> On Sat, Jul 15, 2023 at 02:28:56PM +0200, Julian Huhn wrote: >>> > Moin! >>> > >>> > A few weeks ago, I put a new system into operation, where I notice a >>> > permanently high CPU load. With the help of top it appears that >>> > permanently the process acpi0 is executed. >>> > >>> > Is this a bug? >>> > >>> > I'm happy to help with more logs, if you tell me what you need. >>> > >>> > --Huhn >>> > >> >>This is a stuck GPE. This board in particular is a known issue; search >>the lists. >> >>mbuhl@ suggested a few months back that I get one of these machines to fix >>the issue, but when I started looking at it, the simplest fix was to just >>install a new bios. Since this is likely one of these super cheap 4 port >>igc(4) aliexpress "firewall PCs", you may need to search a bit to find a >>compatible bios since most of these don't have a real brand site associated >>with them. >> >>FWIW, the machines with "techvision" bios (like yours) exhibit this issue. >>Mine had techvision bios (and the same problem) before I flashed it to the >>image described below. >> >>You need to find this bios: >> >>bios0: vendor American Megatrends International, LLC. version "JK4LV107" date >>04/17/2023 > > I just found this Reddit Post [0], describing a related issue with this > kind of board. There's also a download link [1] in the comments for the > bios update. As soon as I found some time I will install the update. > Thanks! > >>That one works on my machine, with exactly the same config as yours. No >>more ACPI GPE storm. >> >>I don't have the link anymore for where I found the BIOS image, but I >>think it was on servethehome in one of the long threads about these >>machines. You need to do some digging. >> >>While the root cause may be due to us lacking some driver for the device >>owning that GPE, or our lack of activating GPEs based on attached >>hardware, the 5-minute bios update fix was a good enough fix for me and >>I moved on to other things. >> >>The other lesson I learned is that you get what you pay for; buying $100 >>PCs from aliexpress means you're just going to be paying for it somewhere >>else. In this case, dealing with shoddy engineering and unsupported boards. >> >>-ml >> >>> > > [0] > https://www.reddit.com/r/PFSENSE/comments/14vv90w/topton_5105_n6005_owners_any_issues_running_on/ > [1] > https://pan.x86pi.cn/BIOS%E6%9B%B4%E6%96%B0/1.Intel%E8%BF%B7%E4%BD%A0%E4%B8%BB%E6%9C%BA%E7%B3%BB%E5%88%97BIOS/N5105%20V3-V5%20%E5%BE%AE%E7%A0%81%E6%9B%B4%E6%96%B023-04-18
I can confirm that the linked BIOS update resolves the stuck GPE on my board. I ended up using unetbootin to get the ISO in a state that my board was willing to boot and flash. I appear to have lost the ability to redirect the BIOS via serial console with this update, but as noted, you get what you pay for. Thanks all. Brian
