John David Anglin wrote... > The sync operations for double word operations were introduced in gcc on > 2014-11-21. > These require kernel support. I suspect the stalls occur because your > kernel is too old and > doesn't support double-word atomics.
Didn't think of such a thing, and indeed I'm running my own kernel,
currently 4.9 and 4.13. Comparing the .config file to the one provided
by the Debian package I didn't see anything obvious. Do you have a
suggestion what might be missing? For the records, GENERIC_ATOMIC64 is set.
> Debian kernel from
> unstable would resolve the problem.
I'll give that a try.
> Helge can provide an account on phantom for development if necessary.
That's nice but will hopefully not be necessary. For the time being, I'm
more interested in a "same here" or "works for me" so I get a better
idea what to look for.
Christoph
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