= hirsute verification =
ubuntu@blanka:~/nvidia-dgx-2/tests$ cat /proc/version
Linux version 5.11.0-42-generic (buildd@lgw01-amd64-041) (gcc (Ubuntu
10.3.0-1ubuntu1) 10.3.0, GNU ld (GNU Binutils for Ubuntu) 2.36.1) #46-Ubuntu
SMP Fri Nov 26 12:04:17 UTC 2021
ubuntu@blanka:~/nvidia-dgx-2/tests$ ./nvidia-peermem-test.sh
+ export DEBCONF_FRONTEND=noninteractive
+ DEBCONF_FRONTEND=noninteractive
+ export DEBIAN_PRIORITY=critical
+ DEBIAN_PRIORITY=critical
+ SERVER_IFACE=enp148s0
+ SERVER_IP=192.168.5.1/24
+ SERVER_IB_BDF=0000:4b:00.0
+ CLIENT_IFACE=enp18s0
+ CLIENT_IP=192.168.5.2/24
+ CLIENT_IB_BDF=0000:ba:00.0
+ trap cleanup EXIT
+ sudo service unattended-upgrades stop
+ install_cuda_perftest
+ local release
+ local components
+ dpkg-query -W -f '${Version}' perftest
+ grep -q '+cuda.1$'
+ return
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_0
++++ dirname
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:04.0/0000:0a:00.0/0000:0b:00.0/0000:0c:00.0/infiniband/mlx5_0
+++ dirname
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:04.0/0000:0a:00.0/0000:0b:00.0/0000:0c:00.0/infiniband
++ basename
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:04.0/0000:0a:00.0/0000:0b:00.0/0000:0c:00.0
+ bdf=0000:0c:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_1
++++ dirname
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:08.0/0000:10:00.0/0000:11:10.0/0000:12:00.0/infiniband/mlx5_1
+++ dirname
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:08.0/0000:10:00.0/0000:11:10.0/0000:12:00.0/infiniband
++ basename
../../devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:08.0/0000:10:00.0/0000:11:10.0/0000:12:00.0
+ bdf=0000:12:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_2
++++ dirname
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:04.0/0000:49:00.0/0000:4a:00.0/0000:4b:00.0/infiniband/mlx5_2
+++ dirname
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:04.0/0000:49:00.0/0000:4a:00.0/0000:4b:00.0/infiniband
++ basename
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:04.0/0000:49:00.0/0000:4a:00.0/0000:4b:00.0
+ bdf=0000:4b:00.0
+ case "$bdf" in
++ basename /sys/class/infiniband/mlx5_2
+ server_ib_dev=mlx5_2
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_3
++++ dirname
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:08.0/0000:50:00.0/0000:51:10.0/0000:54:00.0/infiniband/mlx5_3
+++ dirname
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:08.0/0000:50:00.0/0000:51:10.0/0000:54:00.0/infiniband
++ basename
../../devices/pci0000:40/0000:40:01.1/0000:41:00.0/0000:42:08.0/0000:50:00.0/0000:51:10.0/0000:54:00.0
+ bdf=0000:54:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_4
++++ dirname
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:04.0/0000:8b:00.0/0000:8c:00.0/0000:8d:00.0/infiniband/mlx5_4
+++ dirname
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:04.0/0000:8b:00.0/0000:8c:00.0/0000:8d:00.0/infiniband
++ basename
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:04.0/0000:8b:00.0/0000:8c:00.0/0000:8d:00.0
+ bdf=0000:8d:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_5
++++ dirname
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:08.0/0000:92:00.0/0000:93:10.0/0000:94:00.0/infiniband/mlx5_5
+++ dirname
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:08.0/0000:92:00.0/0000:93:10.0/0000:94:00.0/infiniband
++ basename
../../devices/pci0000:80/0000:80:01.1/0000:81:00.0/0000:82:08.0/0000:92:00.0/0000:93:10.0/0000:94:00.0
+ bdf=0000:94:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_6
++++ dirname
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:04.0/0000:b8:00.0/0000:b9:00.0/0000:ba:00.0/infiniband/mlx5_6
+++ dirname
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:04.0/0000:b8:00.0/0000:b9:00.0/0000:ba:00.0/infiniband
++ basename
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:04.0/0000:b8:00.0/0000:b9:00.0/0000:ba:00.0
+ bdf=0000:ba:00.0
+ case "$bdf" in
++ basename /sys/class/infiniband/mlx5_6
+ client_ib_dev=mlx5_6
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_7
++++ dirname
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:08.0/0000:be:00.0/0000:bf:10.0/0000:cc:00.0/infiniband/mlx5_7
+++ dirname
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:08.0/0000:be:00.0/0000:bf:10.0/0000:cc:00.0/infiniband
++ basename
../../devices/pci0000:b0/0000:b0:01.1/0000:b1:00.0/0000:b2:08.0/0000:be:00.0/0000:bf:10.0/0000:cc:00.0
+ bdf=0000:cc:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_8
++++ dirname
../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.0/infiniband/mlx5_8
+++ dirname ../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.0/infiniband
++ basename ../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.0
+ bdf=0000:e1:00.0
+ case "$bdf" in
+ for ibdev in /sys/class/infiniband/*
+++++ readlink /sys/class/infiniband/mlx5_9
++++ dirname
../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.1/infiniband/mlx5_9
+++ dirname ../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.1/infiniband
++ basename ../../devices/pci0000:e0/0000:e0:03.1/0000:e1:00.1
+ bdf=0000:e1:00.1
+ case "$bdf" in
+ '[' -z mlx5_6 ']'
+ '[' -z mlx5_2 ']'
+ sudo rdma system set netns exclusive
+ sudo ip netns add peermemclient
+ sudo rdma dev set mlx5_6 netns peermemclient
+ sudo ip netns exec peermemclient ip link set dev lo up
+ sudo ip link set netns peermemclient enp18s0
+ sudo ip netns exec peermemclient ip addr add dev enp18s0 192.168.5.2/24
+ sudo ip netns exec peermemclient ip link set dev enp18s0 up
+ sudo ip addr add dev enp148s0 192.168.5.1/24
+ sudo ip link set dev enp148s0 up
+ sudo modprobe ib_umad
+ sudo modprobe nvidia-peermem
+ sudo_apt install -y opensm
+ sudo --preserve-env=DEBCONF_FRONTEND,DEBIAN_PRIORITY apt install -y opensm
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
opensm is already the newest version (3.3.23-2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
+ sudo service opensm start
+ use_cuda_needs_devid
+ ib_write_bw --help
+ grep use_cuda=
--use_cuda=<cuda device id> Use CUDA specific device for GPUDirect RDMA
testing
+ return 0
+ server_use_cuda_arg=--use_cuda=0
+ client_use_cuda_arg=--use_cuda=1
+ srvpid=7209
+ sleep 5
+ sudo ib_write_bw -a -d mlx5_2 --use_cuda=0
************************************
* Waiting for client to connect... *
************************************
+ sudo ip netns exec peermemclient ib_write_bw -a -d mlx5_6 192.168.5.1
--use_cuda=1
initializing CUDA
initializing CUDA
Listing all CUDA devices in system:
CUDA device 0: PCIe address is 07:00
CUDA device 1: PCIe address is 0F:00
CUDA device 2: PCIe address is 47:00
CUDA device 3: PCIe address is 4E:00
CUDA device 4: PCIe address is 87:00
CUDA device 5: PCIe address is 90:00
CUDA device 6: PCIe address is B7:00
CUDA device 7: PCIe address is BD:00
Picking device No. 1
[pid = 7216, dev = 1] device name = [NVIDIA A100-SXM4-40GB]
creating CUDA Ctx
Listing all CUDA devices in system:
CUDA device 0: PCIe address is 07:00
CUDA device 1: PCIe address is 0F:00
CUDA device 2: PCIe address is 47:00
CUDA device 3: PCIe address is 4E:00
CUDA device 4: PCIe address is 87:00
CUDA device 5: PCIe address is 90:00
CUDA device 6: PCIe address is B7:00
CUDA device 7: PCIe address is BD:00
Picking device No. 0
[pid = 7211, dev = 0] device name = [NVIDIA A100-SXM4-40GB]
creating CUDA Ctx
making it the current CUDA Ctx
cuMemAlloc() of a 16777216 bytes GPU buffer
allocated GPU buffer address at 00007f0eba000000 pointer=0x7f0eba000000
---------------------------------------------------------------------------------------
RDMA_Write BW Test
Dual-port : OFF Device : mlx5_6
Number of qps : 1 Transport type : IB
Connection type : RC Using SRQ : OFF
PCIe relax order: ON
ibv_wr* API : ON
TX depth : 128
CQ Moderation : 100
Mtu : 4096[B]
Link type : IB
Max inline data : 0[B]
rdma_cm QPs : OFF
Data ex. method : Ethernet
---------------------------------------------------------------------------------------
making it the current CUDA Ctx
cuMemAlloc() of a 16777216 bytes GPU buffer
allocated GPU buffer address at 00007f682e000000 pointer=0x7f682e000000
---------------------------------------------------------------------------------------
RDMA_Write BW Test
Dual-port : OFF Device : mlx5_2
Number of qps : 1 Transport type : IB
Connection type : RC Using SRQ : OFF
PCIe relax order: ON
ibv_wr* API : ON
CQ Moderation : 100
Mtu : 4096[B]
Link type : IB
Max inline data : 0[B]
rdma_cm QPs : OFF
Data ex. method : Ethernet
---------------------------------------------------------------------------------------
local address: LID 0x01 QPN 0x0107 PSN 0x90c1f2 RKey 0x17ecdc VAddr
0x007f682e800000
local address: LID 0x02 QPN 0x1883 PSN 0xa82bae RKey 0x17ece2 VAddr
0x007f0eba800000
remote address: LID 0x02 QPN 0x1883 PSN 0xa82bae RKey 0x17ece2 VAddr
0x007f0eba800000
remote address: LID 0x01 QPN 0x0107 PSN 0x90c1f2 RKey 0x17ecdc VAddr
0x007f682e800000
---------------------------------------------------------------------------------------
#bytes #iterations BW peak[MB/sec] BW average[MB/sec] MsgRate[Mpps]
---------------------------------------------------------------------------------------
#bytes #iterations BW peak[MB/sec] BW average[MB/sec] MsgRate[Mpps]
Conflicting CPU frequency values detected: 1500.000000 != 3391.375000. CPU
Frequency is not max.
2 5000 4.11 4.10 2.151153
Conflicting CPU frequency values detected: 1500.000000 != 3345.763000. CPU
Frequency is not max.
4 5000 8.07 8.04 2.108648
Conflicting CPU frequency values detected: 1500.000000 != 3362.509000. CPU
Frequency is not max.
8 5000 16.13 16.13 2.113996
Conflicting CPU frequency values detected: 1500.000000 != 3335.048000. CPU
Frequency is not max.
16 5000 32.30 32.19 2.109436
Conflicting CPU frequency values detected: 1500.000000 != 3339.906000. CPU
Frequency is not max.
32 5000 64.41 64.38 2.109663
Conflicting CPU frequency values detected: 1500.000000 != 3333.100000. CPU
Frequency is not max.
64 5000 129.43 129.12 2.115557
Conflicting CPU frequency values detected: 1500.000000 != 3349.864000. CPU
Frequency is not max.
128 5000 257.89 257.16 2.106668
Conflicting CPU frequency values detected: 1500.000000 != 3350.294000. CPU
Frequency is not max.
256 5000 516.27 515.84 2.112864
Conflicting CPU frequency values detected: 1500.000000 != 3340.996000. CPU
Frequency is not max.
512 5000 1024.81 1024.72 2.098633
Conflicting CPU frequency values detected: 1500.000000 != 3356.251000. CPU
Frequency is not max.
1024 5000 2053.47 2053.08 2.102352
Conflicting CPU frequency values detected: 1500.000000 != 3339.107000. CPU
Frequency is not max.
2048 5000 3864.52 3720.22 1.904755
Conflicting CPU frequency values detected: 1500.000000 != 3355.693000. CPU
Frequency is not max.
4096 5000 4494.10 4083.37 1.045344
Conflicting CPU frequency values detected: 1500.000000 != 3342.793000. CPU
Frequency is not max.
8192 5000 4590.54 4425.60 0.566476
Conflicting CPU frequency values detected: 1500.000000 != 3351.159000. CPU
Frequency is not max.
16384 5000 4517.28 4279.27 0.273873
Conflicting CPU frequency values detected: 1500.000000 != 3314.743000. CPU
Frequency is not max.
32768 5000 4460.95 4387.03 0.140385
Conflicting CPU frequency values detected: 1500.000000 != 3305.732000. CPU
Frequency is not max.
65536 5000 4465.92 4408.98 0.070544
Conflicting CPU frequency values detected: 1500.000000 != 3310.266000. CPU
Frequency is not max.
131072 5000 4449.90 4422.93 0.035383
Conflicting CPU frequency values detected: 1500.000000 != 3364.586000. CPU
Frequency is not max.
262144 5000 4443.64 4439.50 0.017758
Conflicting CPU frequency values detected: 1500.000000 != 3325.738000. CPU
Frequency is not max.
524288 5000 4444.42 4441.08 0.008882
Conflicting CPU frequency values detected: 1500.000000 != 3391.764000. CPU
Frequency is not max.
1048576 5000 4453.77 4452.52 0.004453
Conflicting CPU frequency values detected: 1500.000000 != 3391.441000. CPU
Frequency is not max.
2097152 5000 4450.29 4449.44 0.002225
Conflicting CPU frequency values detected: 1500.000000 != 1958.593000. CPU
Frequency is not max.
4194304 5000 4452.98 4451.38 0.001113
Conflicting CPU frequency values detected: 1500.000000 != 2246.050000. CPU
Frequency is not max.
8388608 5000 4453.11 4452.79 0.000557
---------------------------------------------------------------------------------------
8388608 5000 4453.11 4452.79 0.000557
---------------------------------------------------------------------------------------
deallocating RX GPU buffer 00007f682e000000
deallocating RX GPU buffer 00007f0eba000000
destroying current CUDA Ctx
destroying current CUDA Ctx
+ cleanup
+ '[' -n 7209 ']'
+ test -d /proc/7209
+ sudo kill 7209
kill: (7209): No such process
+ /bin/true
+ '[' -z '' ']'
+ sudo ip addr del dev enp148s0 192.168.5.1/24
+ sudo ip netns exec peermemclient ip addr del dev enp18s0 192.168.5.2/24
+ sudo ip netns delete peermemclient
ubuntu@blanka:~/nvidia-dgx-2/tests$ echo $?
0
** Tags removed: verification-needed-hirsute
** Tags added: verification-done-hirsute
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1947206
Title:
Updates to ib_peer_memory requested by Nvidia
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
In Progress
Status in linux source package in Hirsute:
Fix Committed
Status in linux source package in Impish:
Fix Committed
Bug description:
[Impact]
Nvidia notified me via private email that they'd discovered some issues with
the ib_peer_memory patch we are carrying in hirsute/impish and sent me a patch
intended to resolve them. My knowledge of these changes is limited to what is
mentioned in the commit message:
- Allow clients to opt out of unmap during invalidation
- Fix some bugs in the sequencing of mlx5 MRs
- Enable ATS for peer memory
[Test Case]
ib_write_bw from the perftest package, rebuilt with CUDA support, can be used
as a smoke test of this feature. I'll attach a sample test script here. I've
verified this test passes with the kernels in the archive, and continues to
pass with the provided patch applied.
[Fix]
Nvidia has emailed me fixes for both trees. They are not currently available
in a public tree elsewhere, though I'm told at some point they should end up in
a branch here:
https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/
[What could go wrong]
The only known use case for ib_peer_memory are Nvidia GPU users making use of
the GPU PeerDirect feature where GPUs can share memory with one another over an
Infiniband network. Bugs here could cause problems (hangs, crashes, corruption)
with such workloads.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947206/+subscriptions
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