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. Ben. -- Ben Hutchings The two most common things in the universe are hydrogen and stupidity.
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