Author: hselasky
Date: Tue Jul 17 09:18:16 2018
New Revision: 336377
URL: https://svnweb.freebsd.org/changeset/base/336377
Log:
Fix kernel panic while using XRC_TGT QP type in ibcore.
Attempt to modify XRC_TGT QP type from the user space (ibv_xsrq_pingpong
invocation) will trigger the following kernel panic. It is caused by the
fact that such QPs missed uobject initialization.
Linux commit:
f45765872e7aae7b81feb3044aaf9886b21885ef
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/ofed/drivers/infiniband/core/ib_uverbs_cmd.c
Modified: head/sys/ofed/drivers/infiniband/core/ib_uverbs_cmd.c
==============================================================================
--- head/sys/ofed/drivers/infiniband/core/ib_uverbs_cmd.c Tue Jul 17
09:16:54 2018 (r336376)
+++ head/sys/ofed/drivers/infiniband/core/ib_uverbs_cmd.c Tue Jul 17
09:18:16 2018 (r336377)
@@ -1943,6 +1943,9 @@ static int create_qp(struct ib_uverbs_file *file,
atomic_inc(&attr.srq->usecnt);
if (ind_tbl)
atomic_inc(&ind_tbl->usecnt);
+ } else {
+ /* It is done in _ib_create_qp for other QP types */
+ qp->uobject = &obj->uevent.uobject;
}
qp->uobject = &obj->uevent.uobject;
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