This commit adds the data necessesary for supporting dynamic add_procs
to the rdma message (opal_process_name_t). The endpoint lookup
function has been updated to match the code in udcm.
Closesopen-mpi/ompi#1468.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1345825 (1 of 1): Dereference before null check (REVERSE_INULL):
ib_proc should not be NULL in this case. Removed the check and added a
check for NULL after OBJ_NEW.
CID 1269821 (1 of 1): Dereference null return value (NULL_RETURNS):
I labeled this one as a false positive (which it is) but the code in
question could stand be be cleaned up.
Fix CID 1356424 (1 of 1): Argument cannot be negative (NEGATIVE_RETURNS):
While trying to silence another Coverity issue another was
flagged. Protect the close of fd with if (fd >= 0).
CID 70772 (1 of 1): Dereference null return value (NULL_RETURNS):
CID 70773 (1 of 1): Dereference null return value (NULL_RETURNS):
CID 70774 (1 of 1): Dereference null return value (NULL_RETURNS):
None of these are errors and are intentional but now that we have a
list release function use that to make these go away. The cleanup is
similar to CID 1269821.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1315298: Resource leak (RESOURCE_LEAK) :
Fix CID 1315300: Resource leak (RESOURCE_LEAK):
Fix CID 1315299: Resource leak (RESOURCE_LEAK):
Fix CID 1315297 (#1 of 1): Resource leak (RESOURCE_LEAK):
Confirmed leaks in error paths. Added the leaked arrays to the
ERR_EXIT macro to ensure they are freed.
Fix CID 1315296 (#1 of 1): Resource leak (RESOURCE_LEAK):
Confirmed leak in error paths. Both the oversub and reqs arrays are
leaked. Free these arrays on error.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1269976 (#1 of 1): Unused value (UNUSED_VALUE):
Fix CID 1269979 (#1 of 1): Unused value (UNUSED_VALUE):
Removed unused variables k_temp1 and k_temp2.
Fix CID 1269981 (#1 of 1): Unused value (UNUSED_VALUE):
Fix CID 1269974 (#1 of 1): Unused value (UNUSED_VALUE):
Removed gotos and use the matched flags to decide whether to return.
Fix CID 715755 (#1 of 1): Dereference null return value (NULL_RETURNS):
This was also a leak. The items on cs->ctl_structures are allocated using OBJ_NEW so they mist be released using OBJ_RELEASE not OBJ_DESTRUCT. Replaced the loop with OPAL_LIST_DESTRUCT().
Fix CID 715776 (#1 of 1): Dereference before null check (REVERSE_INULL):
Rework error path to remove REVERSE_INULL. Also added a free to an error path where it was missing.
Fix CID 1196603 (#1 of 1): Bad bit shift operation (BAD_SHIFT):
Fix CID 1196601 (#1 of 1): Bad bit shift operation (BAD_SHIFT):
Both of these are false positives but it is still worthwhile to fix so they no longer appear. The loop conditional has been updated to use radix_mask_pow instead of radix_mask to quiet these issues.
Fix CID 1269804 (#1 of 1): Argument cannot be negative (NEGATIVE_RETURNS):
In general close (-1) is safe but coverity doesn’t like it. Reworked the error path for open to not try to close (-1).
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 715744 (#1 of 1): Logically dead code (DEADCODE):
Fix CID 715745 (#1 of 1): Logically dead code (DEADCODE):
The free of scratch_num in either place is defensive programming. Instead of removing the free the conditional around the free has been removed to quiet the warning.
Fix CID 715753 (#1 of 1): Dereference after null check (FORWARD_NULL):
Fix CID 715778 (#1 of 1): Dereference before null check (REVERSE_INULL):
Fixed the conditional to check for collective_alg != NULL instead of collective_alg->functions != NULL.
Fix CID 715749 (#1 of 4): Explicit null dereferenced (FORWARD_NULL):
Updated code to ensure that none of the parse functions are reached with a non-NULL value.
Fix CID 715746 (#1 of 1): Logically dead code (DEADCODE):
Removed dead code.
Fix CID 715768 (#1 of 1): Resource leak (RESOURCE_LEAK):
Fix CID 715769 (#2 of 2): Resource leak (RESOURCE_LEAK):
Fix CID 715772 (#1 of 1): Resource leak (RESOURCE_LEAK):
Move free calls to before error checks to cleanup leak in error paths.
Fix CID 741334 (#1 of 1): Explicit null dereferenced (FORWARD_NULL):
Added a check to ensure temp is not dereferenced if it is NULL.
Fix CID 1196605 (#1 of 1): Bad bit shift operation (BAD_SHIFT):
Fixed overflow in calculation by replacing int mask with 1ul.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1325868 (#1 of 1): Dereference after null check (FORWARD_NULL):
Fix CID 1325869 (#1-2 of 2): Dereference after null check (FORWARD_NULL):
Here reqs can indeed be NULL. Added a check to
ompi_coll_base_free_reqs to prevent dereferencing NULL pointer.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1324726 (#1 of 1): Free of address-of expression (BAD_FREE):
Indeed, if a lock conflicts with the lock_all we will end up trying to
free an invalid pointer.
Fix CID 1328826 (#1 of 1): Dereference after null check (FORWARD_NULL):
This was intentional but it would be a good idea to check for
module->comm being non_NULL to be safe. Also cleaned out some checks
for NULL before free().
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This commit changes the opal_fifo_push code to use
opal_update_counted_pointer to set the head. This fixes a data race
that occurs because the read of the fifo head in opal_fifo_pop
requires two instructions. This combined with the non-atomic update in
opal_fifo_push can lead to an ABA issue that puts the fifo in an
inconsistant state.
There are other ways this problem could be fixed. One way would be to
introduce an opal_atomic_read_128 implementation. On x86_64 this would
have to use the cmpxchg16b instruction. Since this instruction would
have to be in the pop path (and always executed) it would be slower
than the fix in this commit.
Closesopen-mpi/ompi#1460.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 1356358: Null pointer dereferences (REVERSE_INULL):
flist->fl_mpool can no longer be NULL. Removed the conditional.
Fix CID 1356357: Resource leaks (RESOURCE_LEAK):
Added the call to free the hints array.
Fix CID 1356356: Resource leaks (RESOURCE_LEAK):
This is a false error but it is safe to call close (-1) so just always
call close.
Fix CID 1356354: Control flow issues (MISSING_BREAK):
Fix CID 1356353: Control flow issues (MISSING_BREAK):
Add comments that indicate the fall-through is intentional.
Fix CID 1356351: Null pointer dereferences (FORWARD_NULL):
Fix potential SEGV if the page_size key is malformed.
Fix CID 1356350: Error handling issues (CHECKED_RETURN):
Add (void) to indicate that we do not care about the return code of
sscanf in this case.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This commit removes an erroneous else statement from the OSX built-in
atomics check. The else branch sets the built-in atomics support to
BUILTIN_NO if either opal_cv_asm_builtin is not BUILTIN_NO or OSX
atomics support is disabled.
Signed-off-by: Nathan Hjelm <hjelmn@me.com>
+ Added an mca parameter to allow connecting processes from different
subnets. Its current default value is 'false' - don't allow, to keep the
current flow the way it is now.
+ rmdacm: when calling ibv_query_gid, use the gid index from
btl_openib_gid_index.
After 11 years, it's probably ok to say that we're no longer in "early
development" -- disable the "build a debug version of Open MPI by
default if we find a .git directory" behavior.
However, we are keeping the "use compiler picky flags if we find a
.git directory" behavior. That's useful behavior for developers, and
has no effect on performance.
