On Tue, 4 Dec 2007, Andi Kleen wrote:
I have just had the guts to explore __fast__ memory dumping over
firewire for full-system dumps [...]
Unfortunately it won't work for >3GB or so AFAIK.
Yes we seem to be limited to 4GB mostly, with 3G mem hole, it's 3GB.
Afterwards, the victim was dead (I excluded the low MB of memory,
so something else must have caused this), at least the start of
Did you run into the PCI memory hole below 4GB?
Thanks, that was it most likely. I checked and haw that I did
read a 32MB reserved area just below 2GB.
I suppose the best way would be to require a System.map and
then read e820.nr_map/e820.map[] and only dump real memory.
Yes, good idea!
Bernhard
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