On Tue, Jul 10, 2018 at 5:16 PM, Rafael David Tinoco rafael.tinoco@linaro.org wrote: [...]
Greg,
As spoke in this thread last week, I have prepared a patchset for v4.9 tree for one of the bugs I mentioned (https://bugs.linaro.org/show_bug.cgi?id=3303). This bug is related to a dead-lock in kernel waiting for userland events (fanotify).
Jan may already have backports to this bug fix?
Definitely not to v4.9 as we don't have any kernel based on that version. We do have v4.4-based kernels but we didn't backport these fixes there as they are too intrusive and in principle the problem these patches are fixing is in a careless priviledged userspace application.
Honza
That was my initial thought: to discover if this effort was worth or not for v4.4 and v4.9 (and v4.14 for overlayfs) for both issues: LTP test inotify08 (overlayfs lower file not getting events after cached dentries are dropped) and LTP test fanotify07 (this one you reviewed).
I'm dropping the attempt then, marking both as won't fix on our side and moving on. Thanks for reviewing.