Kernel memory leak introduced with 14.04 kernel when used with squid3
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
I have a Ubuntu 12.04.5 LTS running in a Hyper-V VM for several years.
Since I updated the system a few days ago to Linux 3.13.0-68-generic x86_64, the machine hangs
with out of memory after about 2 days of uptime. (occurred several times)
With the kernel from July (3.13.0-4?-generic x86_64 or 3.13.0-5? - I don't remember) there was no problem
running the machine several month without interruption.
I'm currently monitoring /proc/meminfo and /proc/slabinfo and can sea a steady increase of
Slab in meminfo.
I also have a second VM without showing the problem. The VM with the leak is used as internet
router and firewall. Two things apply to the VM the the other does not have:
- vsftpd is running, some files are downloaded from the machine every few minutes to hours.
- there is a "tcpdump -i eth0 -s 65535 -C 100 -W 1000000000 -w /somefile" running all the time.
The attached zip file contains the hourly logs of /proc/meminfo and /proc/slabinfo;
*_151115_171444 are the first files after the last reboot.
PS: Initially reported as Question: https:/
This are the logs of the next 22 hours.
Slab is increasing about 20 MB per day; depending on the amount of network traffic.