On Mon, Jun 17, 2013 at 12:42:55PM -0400, Steven Rostedt wrote: > Add a traceoff_on_warning option in both the kernel command line as well > as a sysctl option. When set, any WARN*() function that is hit will cause > the tracing_on variable to be cleared, which disables writing to the > ring buffer. > > This is useful especially when tracing a bug with function tracing. When > a warning is hit, the print caused by the warning can flood the trace with > the functions that producing the output for the warning. This can make the > resulting trace useless by either hiding where the bug happened, or worse, > by overflowing the buffer and losing the trace of the bug totally. > > Signed-off-by: Steven Rostedt <[email protected]>
Neat; Acked-by: Peter Zijlstra <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
