On 06/21/2013 01:08 PM, Chris Wilson wrote: > On Fri, Jun 21, 2013 at 12:15:53PM +0200, Sebastian Andrzej Siewior wrote: >> There is a report on RT about "BUG: scheduling while atomic" because the >> sleeping lock is taken in tracing context. This patch simply moves >> locking operation out of the tracing macro. > > No. This enables the IRQ, as well as making a number of > very expensively serialised read, unconditionally. Ach in case CONFIG_TRACING is enabled but the tracepoint itself is disabled. In that case it is probably best to drop this tracepoint from -RT. > -Chris > Sebastian
