Is it possible to corrupt disk when writeback page with undetected UE?

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Hi,

Suppose there is a UE in a DRAM page that is backed by a disk file.
The UE hasn't been reported to the kernel, but low level firmware 
initiated scrubbing has already logged the UE.

The page is then dirtied by a write, although the write clearly failed,
it didn't trigger an MCE.

And without a subsequent read from the page, at some point, the page is 
written back to the disk, leaving a PAGE_SIZE of zeros in the targeted 
disk blocks.

Is this mode of disk corruption possible?

Thanks a lot!
-jane




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