frank2 at fjl.co.uk
Mon Jun 8 20:09:09 UTC 2015
On 28/05/2015 00:49, Doug Hardie wrote:
> I have a process that is eating up 6 GB of swap space. At that point, FreeBSD 9.3 terminates a process. However, occasionally its not the one eating up the space. When I manually quit the process then the swap space returns to a few KB used. The system runs fine after that.
> I have very little knowledge of what this process is doing internally but would like to know what might be causing this issue. There are 5 of these processes running (parent plus 4 children). Normally each uses about 90 MB RES/SIZE. However when the problem occurs they are about 2GB RES/SIZE each. The system has 4 GB memory. I thought that a malloc would not be able to grab that much memory, even with swapping as it has to be in memory. Could a malloc cause this growth in process size or need I look elsewhere?
Been there and done that :-) While this doesn't directly answer you're
question, I wrote some stuff up about it here:
It was a while ago,and I'm a bit hazy, but I remember debugged the issue
by modifying the kernel files I mention in order to tell me what was
going on. It's actually very easy to do.
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