Builworld stalls on rpi2 [various processes stuck in pfault]

[bob prohaska]

 On Sat, Jan 13, 2018 at 09:08:33AM +0000, Poul-Henning Kamp wrote:
 > 
 > In all likelyhood you do not have enough swap configured, getting
 > through the llvm compilation takes insane amounts of VM these days.
 > 

 2048M of swap are configured on a USB flash drive. Highest usage seen
 was just shy of 1000M, apparently when clang was being linked.
 
 > At the very least you can forget anything about make -j N for N>1
 > 
 
 Prior to the v6-v7 split j4 worked well and finished in about 18 hours, 
 j>4 didn't seem faster but did not freeze. 
 
 There seems also to be a problem with u-boot, which I (perhaps mistakenly)
 upgraded at about the same time. It began to emit streams of
 
 Timeout poll on interrupt endpoint
 
 messages. They were eliminated by simply disconnecting the USB mouse
 and keyboard (both old Dell units). I haven't yet tried another keyboard. 
 
 Thanks for reading, and any ideas!
 
 bob prohaska