There is a SLES 11.4 XEN HV.
There is a SLES 12.2 guest on it.
The guest is stable, only when we download something from the internet, the guest is getting crashed!
I think there is enough free memory:
xm info | grep memory total_memory : 524277 free_memory : 54336 max_free_memory : 57821 max_para_memory : 57817 max_hvm_memory : 57673
When I dd from urandom a bigger file in the guest, it doesn't crashes.
If I w3m different webpages from the guest, it doesn't crashes.
It only crashes when ex.:
is executed. But it can download other files with wget.
On HV side:
tail -100 /var/log/xen/xend.log [2019-04-10 12:42:55 9435] WARNING (XendDomainInfo:2194) Domain has crashed: name=SERVERGUEST id=67. [2019-04-10 12:42:55 9435] DEBUG (XendDomainInfo:3234) XendDomainInfo.destroy: domid=67
tail -100 /var/log/messages Apr 10 12:42:55 SERVERHV xenstored: write rate limit: not in force recently
The question: how can we investigate, what is causing the guest crash?