Hans de Goede wrote: > But for MCE exceptions, specifically ECC errors I would expect the kernel to > log these > through dmesg anyways and then the mcelog service has very little added value > IMHO > (I have no experience with machines with ECC RAM). > > Esp. given that ECC RAM is something which most Fedora Workstation users won't > have, so having this included / enabled by default feels wrong IMHO.
Well, to get x86-64 with ECC you need to choose AMD, or else an Intel processor marketed for big hefty servers, but MCE catches more errors than just memory bit errors. Do the ECC-less Intel processors also lack all other MCE support? On my ECC-capable Ryzen workstation, mcelog is not started because /sys/module/edac_mce_amd/initstate exists. Apparently the daemon is considered unnecessary when this kernel module is active. On the other hand there's a kernel thread called "edac-poller", so I don't know whether the runtime overhead is any lower. Björn Persson
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