aeond makes system unstable and then makes it crashing

[cialu]

Hi, I'm on Ubuntu 17.10 and I'm trying to use aeon daemon on my system. I have compiled the latest code from master branch without issue.

I launched aeond and it synched until block 898106, then it blocked, made the system unresponsive and finally made system crashing.

Latest msg was:

2018-Jan-29 08:57:27.463372 [P2P7][5.9.145.6:11180 OUT]Sync data returned unknown top block: 898106 -> 918131 [20025 blocks (55 days) behind] 
SYNCHRONIZATION started

Syslog doesn't show any anomalies, no infos about crash in system logs (maybe it's kernel related) and 'top' shows that aeond uses around 98% of CPU and around 88% of RAM.

One time I was able to send exit command to aeond, daemon blocked on:

2018-Jan-29 09:02:25.887040 [node] Stop signal sent
2018-Jan-29 09:02:37.539602 [SRV_MAIN]net_service loop stopped.
2018-Jan-29 09:02:37.540027 [SRV_MAIN]p2p net loop stopped
2018-Jan-29 09:02:37.540037 [SRV_MAIN]Stopping core rpc server...
2018-Jan-29 09:02:37.540316 [SRV_MAIN]Deinitializing core...
2018-Jan-29 09:02:37.540326 [SRV_MAIN]Mining has been stopped, 0 finished
2018-Jan-29 09:02:37.544097 [SRV_MAIN]Storing blockchain...

If I press also a CTRL+C, I get:

^C2018-Jan-29 09:04:47.771186 [SRV_MAIN][node] Stop signal sent
2018-Jan-29 09:05:08.211418 [SRV_MAIN]Blockchain stored OK.
2018-Jan-29 09:05:08.212989 [SRV_MAIN]Deinitializing rpc server ...
2018-Jan-29 09:05:08.213050 [SRV_MAIN]Deinitializing cryptonote_protocol...
2018-Jan-29 09:05:08.213080 [SRV_MAIN]Deinitializing p2p...
2018-Jan-29 09:05:08.219788 [SRV_MAIN]Node stopped.
2018-Jan-29 09:05:08.224506 [SRV_MAIN]Mining has been stopped, 0 finished
^Caeond: tpp.c:84: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)' failed.
Aborted (core dumped)

Actually, I can't use aeond and can't finish synchronization.

[cialu]

I found the big issue in continuously running out of RAM. I had 8GB of RAM and 2GB of SWAP, so I increased the SWAP file to 10GB. After that, I was able to finish the synchronization of the blockchain and to use the simplewallet.

Now I can use aeond and simplewallet, but system sometimes (especially during some operations like the saving of the blockchain) become slow and unresponsive. I think is all due to the few RAM I have.