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Old 01-03-07, 09:28 AM   #37
Christoph Anton Mitterer
Join Date: Dec 2006
Location: München, Germany
Posts: 48
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Default Re: nForce 4 corrupting data written to HDD

Originally Posted by netllama
I reviewed the LKML thread that you referenced and the problem descriptions there sound vastly different from what you're reporting. Your issue sounds like filesystem and/or in-memory corruption, however the issue on LKML isn't occuring on the filesystem level, but in the files themselves.
See the later posts in our thread for our solutions/workarounds (i.e. bios setting memhole mapping=disabled or kernel parameter iommu=soft). You're right it most likely happens below filesystem level...

Originally Posted by netllama
Additionally, you stated that "it boots with some scary messages" and "mplayer segfaults". It sounds like the data on your disk(s) is getting corrupted even when its not being actively written to, which is not the same issue as was reported on LKML.
The corruption definitely occurs also on simple reads because my continuing sha512sums checks bring errors on different files...

Originally Posted by netllama
At this point, the information that you've provided suggests a hardware problem (faulty RAM or disk). If you can provide information that suggests otherwise, I can look into your issue further.
A simple test for domasj would be to use iommu=soft as a kernel parameter. If it works with this setting he is probably suffering from the same problem.
(Note that the issue probably cannot occur with Windows and/or Intel CPUs and/or main memory below some value).
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