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Problem with intel wifi driver
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mkryss
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Joined: 27 Aug 2024
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PostPosted: Thu Aug 29, 2024 7:50 pm    Post subject: Problem with intel wifi driver Reply with quote

I've recently installed Gentoo and I'm having some problems with my Intel AX201 network card.
At first I was using the experimental kernel patches and noticed that iwd was segfaulting so I checked ip a, and the wlan interface wasn't showing. lspci still showed the device and it showed the iwlwifi driver being used.
I tried removing the experimental patches and got a kernel oops along with some errors in dmesg, with iwd that still kept segfaulting and the wlan interface not showing.
As far as I can tell, it's not a problem with the kernel config, since the same config works on another gentoo install.

Dmesg with experimental patches (nothing weird, as far as I can tell)
Dmesg without experimental patches

Anyone has any idea?
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grknight
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PostPosted: Thu Aug 29, 2024 8:01 pm    Post subject: Reply with quote

This is likely a bad RAM module as that OOPS is a General Protection Fault in the dmesg

Bad RAM causes strange things to happen in various programs
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pjp
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PostPosted: Thu Aug 29, 2024 11:03 pm    Post subject: Reply with quote

To add to what grknight mentioned, you can use memtest86(+?) to verify the memory issue. Running it "overnight" up to a day is a good idea. The more memory you have, the longer it takes to test. It is recommended to test from a boot image rather than the installed OS itself.
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mkryss
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PostPosted: Fri Aug 30, 2024 1:24 pm    Post subject: Reply with quote

I ran memtest86+ overnight to check the ram and got 5 passes without any errors, so it wasn't a memory error.

I tinkered with it some more and tried doing a full system upgrade, that included both a kernel and an iwd update. I don't know which one worked but that fixed it and now it works.

Thanks for the help.
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pjp
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PostPosted: Fri Aug 30, 2024 5:17 pm    Post subject: Reply with quote

Can you explain what tinkering means? If it was only recompiling, then that may be a false sense of resolution.
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