Dear Neil, > That won't help. Data stored in kmalloc-256 won't get swapped out - it stays > in RAM. So unless you can hot-plus 20Gig of RAM .... Thanks for the info. I read it when almost all my memory were in kmalloc-256. Half an hour later my machine would have crashed despite the increased swapspace. So I could do a graceful reboot and the reshape has sucessfully finished in the meantime. Now I'm going to add those three drives to my array one by one. I'm doing this because I cannot physically swap drive 13 and 14 (the next maintenance window for such an operation would be in october). I will grow the array to 14 drives today since my main concern is to put the data on an even number of disks where the mirrors are separated correctly. Then I will add drive 14 and 15 in one step. By the way: Will a raid10 array with an even number of drives survife if one half of the drives go offline during a reshape operation that adds an even number of drives? Should I download linux 3.14.17 sources and wait for a patch? If only a missing kfree() has to be added somewhere I can do that by hand and recompile 3.14.16. Would it help you if I setup another machine and try to reproduce the problem with linux 3.15.x, 3.16.x and 3.17.x? Peter -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html