Re: Random panic in load_balance() with 3.16-rc

2014-07-28 Thread Theodore Ts'o
On Mon, Jul 28, 2014 at 08:26:59AM -0400, Frank Ch. Eigler wrote: Please note that the data produced by -g -fvar-tracking is consumed by tools like systemtap, perf, crash, and makes a significant difference to the observability of debug AND non-debug kernels. (The presence of compiled-in

Re: Random panic in load_balance() with 3.16-rc

2014-07-28 Thread Theodore Ts'o
On Mon, Jul 28, 2014 at 10:27:39AM -0700, Alexei Starovoitov wrote: It's not pretty, but adding it unconditionally was the right thing to do. Black listing compiler versions is too fragile. Look at the flip side: now size of build dir will be much smaller :) White-listing the fixed compiler

Re: Random panic in load_balance() with 3.16-rc

2014-07-26 Thread Theodore Ts'o
On Sat, Jul 26, 2014 at 09:35:57PM +0200, Markus Trippelsdorf wrote: But fortunately the workaround for the new inode.c bug is the same as for the original bug: -fno-var-tracking-assignments. It would make sense to enabled it unconditionally for all debug configurations for now. What's