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Created attachment 993237 [details]
[PATCH] trace-cmd: Make read nonblocking in find_time_stamp()

This only affects the tsc -> time of day correlation when doing
`trace-cmd record --date`.

get_date_to_ts() writes a dummy event to trace_marker and then reads it back.
Reading it back is done by looping over all per-cpu raw trace pipes and trying
to read.  This read should be non-blocking, because the dummy event can end up
on any CPU.

Switching to rhel6.8 as this is not urgent

The fix for this is in trace-cmd-v2.2.4 so was fixed in bz1218670
Available in 2.2.4-1 and up

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-0802.html