gvirstor & UFS

[Ivan Voras]

Ivan Voras wrote:

> The file system on the virstor device was created with softupdates
> enables, as shown...

Without softupdates, the I/O requests fail, with the usual spewing of
kernel messages from g_vfs_done() in the log, but the application (dd)
doesn't receive failure codes. In effect, it looks like the requests are
ignored - they fail, but dd continues pumping more requests.

Something else occurred to me: what if an UFS metadata update (for
example, in cg) fails in this way - that it requires an additional chunk
of physical data that's not available, is there a chance that the fs
will be corrupted?

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