From: Jason Gunthorpe <jgg@nvidia.com>
To: Alok Prasad <palok@marvell.com>
Cc: dledford@redhat.com, michal.kalderon@marvell.com,
ariel.elior@marvell.com, linux-rdma@vger.kernel.org,
smalin@marvell.com, aelior@marvell.com, alok.prasad7@gmail.com,
Prabhakar Kushwaha <pkushwaha@marvell.com>
Subject: Re: [v3,for-rc] RDMA/qedr: qedr crash while running rdma-tool
Date: Fri, 29 Oct 2021 12:06:00 -0300 [thread overview]
Message-ID: <20211029150600.GA834869@nvidia.com> (raw)
In-Reply-To: <20211027184329.18454-1-palok@marvell.com>
On Wed, Oct 27, 2021 at 06:43:29PM +0000, Alok Prasad wrote:
> This patch fixes crash caused by querying qp.
> Also corrects the state of gsi qp.
>
> Below call trace is generated while using iproute2 utility
> "rdma res show -dd qp" on rdma interface.
> ======================================================================
> [ 302.569794] BUG: kernel NULL pointer dereference, address: 0000000000000034
> ..
> [ 302.570378] Hardware name: Dell Inc. PowerEdge R720/0M1GCR, BIOS 1.2.6 05/10/2012
> [ 302.570500] RIP: 0010:qed_rdma_query_qp+0x33/0x1a0 [qed]
> [ 302.570861] RSP: 0018:ffffba560a08f580 EFLAGS: 00010206
> [ 302.570979] RAX: 0000000200000000 RBX: ffffba560a08f5b8 RCX: 0000000000000000
> [ 302.571100] RDX: ffffba560a08f5b8 RSI: 0000000000000000 RDI: ffff9807ee458090
> [ 302.571221] RBP: ffffba560a08f5a0 R08: 0000000000000000 R09: ffff9807890e7048
> [ 302.571342] R10: ffffba560a08f658 R11: 0000000000000000 R12: 0000000000000000
> [ 302.571462] R13: ffff9807ee458090 R14: ffff9807f0afb000 R15: ffffba560a08f7ec
> [ 302.571583] FS: 00007fbbf8bfe740(0000) GS:ffff980aafa00000(0000) knlGS:0000000000000000
> [ 302.571729] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 302.571847] CR2: 0000000000000034 CR3: 00000001720ba001 CR4: 00000000000606f0
> [ 302.571968] Call Trace:
> [ 302.572083] qedr_query_qp+0x82/0x360 [qedr]
> [ 302.572211] ib_query_qp+0x34/0x40 [ib_core]
> [ 302.572361] ? ib_query_qp+0x34/0x40 [ib_core]
> [ 302.572503] fill_res_qp_entry_query.isra.26+0x47/0x1d0 [ib_core]
> [ 302.572670] ? __nla_put+0x20/0x30
> [ 302.572788] ? nla_put+0x33/0x40
> [ 302.572901] fill_res_qp_entry+0xe3/0x120 [ib_core]
> [ 302.573058] res_get_common_dumpit+0x3f8/0x5d0 [ib_core]
> [ 302.573213] ? fill_res_cm_id_entry+0x1f0/0x1f0 [ib_core]
> [ 302.573377] nldev_res_get_qp_dumpit+0x1a/0x20 [ib_core]
> [ 302.573529] netlink_dump+0x156/0x2f0
> [ 302.573648] __netlink_dump_start+0x1ab/0x260
> [ 302.573765] rdma_nl_rcv+0x1de/0x330 [ib_core]
> [ 302.573918] ? nldev_res_get_cm_id_dumpit+0x20/0x20 [ib_core]
> [ 302.574074] netlink_unicast+0x1b8/0x270
> [ 302.574191] netlink_sendmsg+0x33e/0x470
> [ 302.574307] sock_sendmsg+0x63/0x70
> [ 302.574421] __sys_sendto+0x13f/0x180
> [ 302.574536] ? setup_sgl.isra.12+0x70/0xc0
> [ 302.574655] __x64_sys_sendto+0x28/0x30
> [ 302.574769] do_syscall_64+0x3a/0xb0
> [ 302.574884] entry_SYSCALL_64_after_hwframe+0x44/0xae
> =====================================================================
>
> Signed-off-by: Ariel Elior <aelior@marvell.com>
> Signed-off-by: Shai Malin <smalin@marvell.com>
> Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
> Signed-off-by: Alok Prasad <palok@marvell.com>
> ---
> drivers/infiniband/hw/qedr/verbs.c | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
Applied to for-rc, I added a fixes line
Jason
prev parent reply other threads:[~2021-10-29 15:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-27 18:43 [v3,for-rc] RDMA/qedr: qedr crash while running rdma-tool Alok Prasad
2021-10-28 6:22 ` Leon Romanovsky
2021-10-29 15:06 ` Jason Gunthorpe [this message]
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