On Wed, Feb 17, 2016 at 05:37:51PM +0100, Sumit Bose wrote:
> On Wed, Feb 17, 2016 at 05:29:50PM +0100, Lukas Slebodnik wrote:
> > ehlo,
> > 
> > simple patch is attached.
> > 
> > I can reproduce it only with clang.
> > But it's typical off by one error.
> > 
> > sh$ ./sss_idmap-tests
> > Running suite(s): IDMAP
> > Segmentation fault (core dumped)
> > 
> > Running suite(s): IDMAP
> > ==2644== Process terminating with default action of signal 11 (SIGSEGV)
> > ==2644==  Access not within mapped region at address 0xA08F430
> > ==2644==    at 0x4C2CC53: strcmp (vg_replace_strmem.c:842)
> > ==2644==    by 0x4060DA: idmap_test_sid2uid_additional_secondary_slices 
> > (sss_idmap-tests.c:451)
> > ==2644==    by 0x503C78A: ??? (in /usr/lib64/libcheck.so.0.0.0)
> > ==2644==    by 0x503CB7C: srunner_run (in /usr/lib64/libcheck.so.0.0.0)
> > ==2644==    by 0x4061EE: main (sss_idmap-tests.c:965)
> > ==2644==  If you believe this happened as a result of a stack
> > ==2644==  overflow in your program's main thread (unlikely but
> > ==2644==  possible), you can try to increase the size of the
> > ==2644==  main thread stack using the --main-stacksize= flag.
> > ==2644==  The main thread stack size used in this run was 8388608.
> > 
> > LS
> 
> > From 10b1603e94a8785954f53b17f1e402b3019b29fa Mon Sep 17 00:00:00 2001
> > From: Lukas Slebodnik <[email protected]>
> > Date: Wed, 17 Feb 2016 17:23:37 +0100
> > Subject: [PATCH] sss_idmap-tests: Fix segmentation fault
> > 
> > I can reproduce it only with clang.
> > But it's tipical off by one error.
> > 
> > sh$ ./sss_idmap-tests
> > Running suite(s): IDMAP
> > Segmentation fault (core dumped)
> > 
> > Running suite(s): IDMAP
> > ==2644== Process terminating with default action of signal 11 (SIGSEGV)
> > ==2644==  Access not within mapped region at address 0xA08F430
> > ==2644==    at 0x4C2CC53: strcmp (vg_replace_strmem.c:842)
> > ==2644==    by 0x4060DA: idmap_test_sid2uid_additional_secondary_slices 
> > (sss_idmap-tests.c:451)
> > ==2644==    by 0x503C78A: ??? (in /usr/lib64/libcheck.so.0.0.0)
> > ==2644==    by 0x503CB7C: srunner_run (in /usr/lib64/libcheck.so.0.0.0)
> > ==2644==    by 0x4061EE: main (sss_idmap-tests.c:965)
> > ==2644==  If you believe this happened as a result of a stack
> > ==2644==  overflow in your program's main thread (unlikely but
> > ==2644==  possible), you can try to increase the size of the
> > ==2644==  main thread stack using the --main-stacksize= flag.
> > ==2644==  The main thread stack size used in this run was 8388608.
> > ---
> >  src/tests/sss_idmap-tests.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/src/tests/sss_idmap-tests.c b/src/tests/sss_idmap-tests.c
> > index 
> > 900b7bff1cd4f3c6f9cdffc4b012864d05e72913..885913645ed286636758f3f48a5a62d87cc9ab75
> >  100644
> > --- a/src/tests/sss_idmap-tests.c
> > +++ b/src/tests/sss_idmap-tests.c
> > @@ -427,8 +427,8 @@ 
> > START_TEST(idmap_test_sid2uid_additional_secondary_slices)
> >      struct TALLOC_CTX *tmp_ctx;
> >      const char *dom_prefix = "S-1-5-21-1-2-3";
> >      const int max_rid = 80;
> > -    const char *sids[max_rid];
> > -    unsigned int ids[max_rid];
> > +    const char *sids[max_rid + 1];
> > +    unsigned int ids[max_rid + 1];
> 
> ACK. I'll add the CI link later for completeness.

And here we are http://sssd-ci.duckdns.org/logs/job/37/48/summary.html .

bye,
Sumit
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