Re: Fwd: HTML message rejected: MCE Errors and Crash/Reboot on Fresh Fedora Linux 44

Thank you for the quick response Boris! I will upload the dmesg
attached here. I will also include the commands I ran in case I
misunderstood anything. I believe I'm on the upstream kernel right
now.

hugowhitaker@fedora-mbv:~$ sudo dmesg | grep -i "RAS: Correctable"
[sudo] password for hugowhitaker:
[    0.803882] RAS: Correctable Errors collector initialized.
hugowhitaker@fedora-mbv:~$ uname -r
7.2.0-0.rc2.260711.dd3210c4.322.vanilla.fc44.x86_64
hugowhitaker@fedora-mbv:~$ sudo dmesg > ~/dmesg-full.txt

On Sat, Jul 11, 2026 at 8:38 PM Borislav Petkov <[email protected]> wrote:
>
> On Sat, Jul 11, 2026 at 07:55:36PM -0600, Hugo Whitaker wrote:
> > hugowhitaker@fedora-mbv:~$ sudo journalctl -b 0 -p 3 | grep "CPU:1. (19:44:1)"
> > [sudo] password for hugowhitaker:
> > Jul 11 11:38:20 fedora-mbv kernel: [Hardware Error]: CPU:10 (19:44:1)
> > MC0_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]:
> > 0xdc20400001010135
> > Jul 11 12:09:05 fedora-mbv kernel: [Hardware Error]: CPU:11 (19:44:1)
> > MC0_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]:
> > 0xdc20400001010135
> > Jul 11 12:09:05 fedora-mbv kernel: [Hardware Error]: CPU:10 (19:44:1)
> > MC0_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]:
> > 0xdc20400001010135
> > Jul 11 12:11:37 fedora-mbv kernel: [Hardware Error]: CPU:11 (19:44:1)
> > MC0_STATUS[-|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]: 0x9c20400001010135
> > Jul 11 12:11:37 fedora-mbv kernel: [Hardware Error]: CPU:10 (19:44:1)
> > MC0_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]:
> > 0xdc20400001010135
> > Jul 11 12:12:54 fedora-mbv kernel: [Hardware Error]: CPU:10 (19:44:1)
> > MC0_STATUS[-|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]: 0x9c20400001010135
>
> This tells me that your RAM is generating correctable ECC errors. I.e., it
> might be going bad.
>
> You don't see them on Windoze because it probably doesn't report them there
> - it doesn't mean that they don't happen. But I have no clue what Windood
>   does.
>
> You can check whether you have
>
> [    1.419829] RAS: Correctable Errors collector initialized.
>
> in your dmesg - that thing collects ECCs and does not report them until they
> become fatal. When they do, the machine will freeze and I don't think the OS
> matters in this case.
>
> You could send a full dmesg from the latest upstream kernel and I could take
> a look but it needs to be the upstream kernel - for Fedora kernels you need to
> go talk to them.
>
> HTH.
>
> --
> Regards/Gruss,
>     Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette