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Re: trunk test result inconsistencies


On Wed, Apr 22, 2015 at 08:04:03AM -0400, Andrew MacLeod wrote:
> Is anyone else seeing comparison problems on trunk?
> 
> I was having problems testing a patch on a 4/16 extraction, so last night I
> checked out a fresh trunk, built it, ran make check... then removed the
> build directory, re-built it from scratch again. make check..  and get a
> bunch of different results.     I even used test_summary instead of my own
> home-grown scripts.

That is a buggy kernel, you must have missed a warning not to upgrade your
kernel.  See
https://bugzilla.kernel.org/show_bug.cgi?id=96311
https://lkml.org/lkml/2015/4/13/600
Dunno what progress has been on that patch since then, don't see it in
latest Linus' git though.
AFAIK at least 3.19 and 4.0 kernels are affected.
> 
> Its not ordering this time, its actual reported failures on
> x86_64-unknown-linux-gnu...  for instance,
> run 1 found, among other things:
> PASS: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 80)
> FAIL: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for warnings, line 84)
> PASS: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 89)
> PASS: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 91)
> FAIL: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 92)
> FAIL: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 93)
> FAIL: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 94)
> FAIL: g++.dg/cpp0x/rv1n.C  -std=c++14  (test for errors, line 95)
> <...>

	Jakub


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