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Peter Zijlstra authored
While doing some tracing, I found a huge portion of the per-cpu buffer was taken by printk/serial output because we're disabling the trace far too late (after printing the CUT string). Improve matters for architectures that have GENERIC_BUG + _BUG_FLAGS by killing the tracer in the exception handler before printing anything much. Link: https://lkml.kernel.org/r/20200528145240.GF706495@hirez.programming.kicks-ass.net Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org>
58f6e384Peter Zijlstra authoredWhile doing some tracing, I found a huge portion of the per-cpu buffer was taken by printk/serial output because we're disabling the trace far too late (after printing the CUT string). Improve matters for architectures that have GENERIC_BUG + _BUG_FLAGS by killing the tracer in the exception handler before printing anything much. Link: https://lkml.kernel.org/r/20200528145240.GF706495@hirez.programming.kicks-ass.net Signed-off-by:
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