In the loopback tests, the following call trace occurs. Call Trace: __rxe_do_task+0x1a/0x30 [rdma_rxe] rxe_qp_destroy+0x61/0xa0 [rdma_rxe] rxe_destroy_qp+0x20/0x60 [rdma_rxe] ib_destroy_qp_user+0xcc/0x220 [ib_core] uverbs_free_qp+0x3c/0xc0 [ib_uverbs] destroy_hw_idr_uobject+0x24/0x70 [ib_uverbs] uverbs_destroy_uobject+0x43/0x1b0 [ib_uverbs] uobj_destroy+0x41/0x70 [ib_uverbs] __uobj_get_destroy+0x39/0x70 [ib_uverbs] ib_uverbs_destroy_qp+0x88/0xc0 [ib_uverbs] ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xb9/0xf0 [ib_uverbs] ib_uverbs_cmd_verbs+0xb16/0xc30 [ib_uverbs] The root cause is that the actual RDMA connection is not created in the loopback tests and the rxe_match_dgid will fail randomly. To fix this call trace which appear in the loopback tests, skip check of the dgid. Fixes: 8700e3e7c485 ("Soft RoCE driver") Link: https://lore.kernel.org/r/20200630123605.446959-1-leon@kernel.org Signed-off-by: Zhu Yanjun <yanjunz@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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