Hi,
I have a Debian 9 (stretch) system with a backported rdma-core 17.0-1
package. The system has a mlx4 card (mlx4_ib and mlx4_core kernel
modules) and following network configuration in
/etc/network/interfaces:
```
auto ib0.dddd
iface ib0.dddd inet6 static
address fd44:1:5255::
netmask 64
pre-up echo connected > /sys/class/net/$IFACE/mode
dad-attempts 600
auto ib1.dddd
iface ib1.dddd inet6 static
address fd44:2:5255::
ne
tmask 64
pre-up echo connected > /sys/class/net/$IFACE/mode
dad-
attempts 600
```
The terminal shows following ordering:
```
[FAILED] Failed to start Raise network interfaces.
[ OK ] Started Load RDMA modules from /etc/rdma/modules/rdma.conf
[ OK ] Started Load RDMA modules from /etc/rdma/modules/infiniband.conf
[ OK ] Reached target RDMA Hardware.
```
the networking.service fails with:
```
$ journalctl --no-host -u networking.service
[...]
Mai 15 13:16:40 ifup[1645]: /bin/sh: 1: cannot create /sys/class/net/ib0.dddd/mode: Directory nonexistent
Mai 15 13:16:40 ifup[1645]: ifup: failed to bring up ib0.dddd
Mai 15 13:16:40 ifup[1645]: /bin/sh: 1: cannot create /sys/class/net/ib1.dddd/mode: Directory nonexistent
Mai 15 13:16:40 ifup[1645]: ifup: failed to bring up ib1.dddd
Mai 15 13:16:40 systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Mai 15 13:16:40 systemd[1]: Failed to start Raise network interfaces.
Mai 15 13:16:40 systemd[1]: networking.service: Unit entered failed state.
Mai 15 13:16:40 systemd[1]: networking.service: Failed with result 'exit-code'.
```
The networking.service fails because it tries to bring up
ib0.dddd/ib1.dddd before the rdma-load-modules@infiniband.service loads
the ib_ipoib kernel module. networking.service declares that it should
run after the network-pre.target and rdma-load-modules@infiniband.servi
ce declares to run before network-pre.target. Therefore the order
should be rdma-load-modules@infiniband.service -> network-pre.target ->
networking.service, but this is obviously not the case.
I am writing to this mailing list, because got stuck with debugging
this issue and need your help.
--
Benjamin Drung
System Developer
Debian & Ubuntu Developer
ProfitBricks GmbH
Greifswalder Str. 207
10405 Berlin
Email: benjamin.drung@xxxxxxxxxxxxxxxx
URL: https://www.profitbricks.de
Sitz der Gesellschaft: Berlin
Registergericht: Amtsgericht Charlottenburg, HRB 125506 B
Geschäftsführer: Achim Weiss, Matthias Steinberg, Christoph Steffens
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
