On Fri, 14 Aug 2015 13:01:03 +0200 Ben Hutchings wrote: > On Fri, 2015-08-14 at 13:45 +0900, Christian Balzer wrote: > [...] > > So I decided to downgrade the Mellanox firmware of mbx09. > > > > After building a current version of mstflint (the one in Wheezy is > > ancient and not particular justified) I got the oldest firmware > > (2.32.5100) on the Supermicro FTP site for that mainboard and flashed > > it. > > > > Lo and behold, no more vanishing acts of the ib0: interface, no more > > need to blacklist/fake install the mlx4_en module. > > > > While moderately happy with the outcome, I still consider this a kernel > > bug. > > All the described behavior is not only very unexpected and unwelcome, > > the fact that a remote card reboot can make your network stack vanish > > (and not re-appear unless done manually) is just wrong. > [...] > > This sounds rather more like a firmware bug than a kernel bug. Please > ask Mellanox technical support about this. If they can identify a fix > in the driver then I'll be happy to apply that. >
Nevermind that a firmware bug in my book is something that affects things locally, the fact that 3.2 is not affected and the items listed above make it a kernel/upstream Mellanox bug. I'd appreciate if you could use whatever means you have to kick this upstream as well. I'll send a mail to Mellanox support, which they may well ignore, this being a Supermicro OEM product, never mind that it's 100% identical. Regards, Christian -- Christian Balzer Network/Systems Engineer [email protected] Global OnLine Japan/Fusion Communications http://www.gol.com/
