Re: [PATCH] tracing: generate RCU warnings even when tracepoints are disabled

2014-08-08 Thread Paul E. McKenney
On Fri, Aug 08, 2014 at 02:30:22PM -0400, Steven Rostedt wrote: > On Thu, 7 Aug 2014 11:13:56 -0700 > "Paul E. McKenney" wrote: > > > On Thu, Aug 07, 2014 at 10:52:04AM -0700, Dave Hansen wrote: > > > > > > From: Dave Hansen > > > > > > Dave Jones reported seeing a bug from one of my TLB trace

Re: [PATCH] tracing: generate RCU warnings even when tracepoints are disabled

2014-08-08 Thread Steven Rostedt
On Thu, 7 Aug 2014 11:13:56 -0700 "Paul E. McKenney" wrote: > On Thu, Aug 07, 2014 at 10:52:04AM -0700, Dave Hansen wrote: > > > > From: Dave Hansen > > > > Dave Jones reported seeing a bug from one of my TLB tracepoints: > > > > http://lkml.kernel.org/r/20140806181801.ga4...@redhat.com >

Re: [PATCH] tracing: generate RCU warnings even when tracepoints are disabled

2014-08-07 Thread Paul E. McKenney
On Thu, Aug 07, 2014 at 10:52:04AM -0700, Dave Hansen wrote: > > From: Dave Hansen > > Dave Jones reported seeing a bug from one of my TLB tracepoints: > > http://lkml.kernel.org/r/20140806181801.ga4...@redhat.com > > I've been running these patches for months and never saw this. > But,

[PATCH] tracing: generate RCU warnings even when tracepoints are disabled

2014-08-07 Thread Dave Hansen
From: Dave Hansen Dave Jones reported seeing a bug from one of my TLB tracepoints: http://lkml.kernel.org/r/20140806181801.ga4...@redhat.com I've been running these patches for months and never saw this. But, a big chunk of my testing, especially with all the debugging enabled, was in