Random crashes with 3.2.60 patch

[kevinff]

Hi,

Since one of the updates about 2 or 3 weeks ago, i'm getting random crashes.

I think it started with the .59 patch, i was getting an average of 1 crash per day. I've put an older version (.58) and i got no crash for 3 days (until now).

Here is the screen i could get from the last crash:

http://postimg.org/image/6hm9s4pgj/

Most of the times i was not working on the server and it really crashed at random times.. Not sure if the screenshot is helpful.

[kevinff]

Nevermind it crashed too with the .58.

It looks very similar to this one:

https://github.com/zfsonlinux/zfs/issues/809

[PaX Team]

would it be possible to capture the full oops?

[kevinff]

I couldn't get more info, also it's a production server..

I couldn't get kdump to work with grsec (i guess it's not possible), but if you have any quick way to get more data i'd be happy to do it.

[PaX Team]

can you set up a serial console (Intel's AMT supports SOL for example) or netconsole perhaps? also perhaps disable the grsec bruteforce prevention mechanism, you may get proper logs on the failing host then.