Re: [PATCH v2 net-next 0/7] net: speedup netns create/delete time
From: Eric Dumazet <edumazet@google.com>
Date: 2017-09-26 12:51:18
On Tue, Sep 26, 2017 at 4:21 AM, Tariq Toukan [off-list ref] wrote:
Hi Eric, We see a regression introduced in this series, specifically in the patches touching lib/kobject_uevent.c. We tried to figure out what is wrong there, but couldn't point it out. Bug is that mlx4 driver restart fails, because mlx4_core is still in use. According to module dependencies, both mlx4_en and mlx4_ib should have been unloaded at this point Please see log below. This looks to be some kind of a race, as the repro is not deterministic. Probably the en/ib modules are now mistakenly reloaded. Any idea what could this be? Regards, Tariq [root@reg-l-vrt-41016-009 ~]# /etc/init.d/openibd stop Unloading HCA driver: [ OK ] [root@reg-l-vrt-41016-009 ~]# /etc/init.d/openibd start Loading HCA driver and Access Layer: [ OK ] [root@reg-l-vrt-41016-009 ~]# /etc/init.d/openibd stop Unloading mlx4_core [FAILED] rmmod: ERROR: Module mlx4_core is in use
I have absolutely no idea. Please bisect. Are you really using netns in the first place ?