Ticket #4377 (closed defect: fixed)
guest hangs on IO operations
|Reported by:||costing||Owned by:|
I cannot reproduce the problem but it seems to be related to IO, most probably network. At some point after a few hours of working the guest hangs almost completely. It still answers to ping for example and if I have a console opened I can still type a few commands. But once something requires some IO, it hangs. For example, direct login on tty accepts u/p then says: "Login timed out after 60 seconds". I managed only to see the list of processes in D (hundreds of them) and for example strace on an httpd instance shows it blocked in accept(...
There is nothing in dmesg on either the guest or the host. VBox.log is also clean. This exact configuration worked fine until ver 3.0.0, so it looks like a bug in the latest version. Apparently it doesn't depend on any hardware virtualization features since it showed even in 2 CPUs with all the options enabled and 1 CPU with none of the options.
I'll try downgrading to 2.2.4 to see if it solves the problems, but it might take a while until I can be sure of the outcome.