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Date: Tue, 24 Nov 2015 16:55:53 +0100 From: Turbo Fredriksson <turbo@...our.com> To: linux-kernel@...r.kernel.org Subject: unmap/blacklist memory page? I've been reading http://spectrum.ieee.org/computing/hardware/drams-damning-defects-and-how-they-cripple-computers today, and although much of it I did know, the fact that it seems that hard errors are much more common that previously thought surprised me. And worried me… I've managed to figure out (I think) how to monitor this (mcelog), how to actually, live (!!), manage to unmap/blacklist a sector/page is something I haven't managed to google… The only thing I've managed to find is how to do this on the boot prompt/grub config and that's "to late"… Is there any command that will allow me to do this from the command line? I've been looking at the 'edac' module(s), but my /sys/devices/system/edac/mc directory is empty (and I don't have a .../pci dir either). I have both the 'edac_core' and 'i7core_edac' loaded. Do I need any else? Can't find any in /lib/modules/`uname -r` that seems to fit the bill… But in any case, that seems to be reporting only anyway… ? -- Try not. Do. Or do not. There is no try! - Yoda -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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