** Description changed: A simple stress test conducted on a KVM guest running standard updated Lucid with vsftpd demonstrates that memory is continuously used up until OOM Killer starts to protect the system (after ~12 min on my system). If test is terminated before that point is reached then memory is freed only after several hours. If vsftpd is stopped then memory is freed - (after ~10 min on my system). + (after ~45 min on my system). This does not occur with the 2.6.35 kernel (LTS backported kernel). The test is started in this way: $ for i in 1 2 3 4 5 6 7 8 ; do ./feedftp $i >/dev/null & done What is observed during the test is that /proc/vmallocinfo grows continually with lines like the following being added: 0xffffe8ffff800000-0xffffe8ffffa00000 2097152 pcpu_get_vm_areas+0x0/0x790 vmalloc 0xffffe8ffffa00000-0xffffe8ffffc00000 2097152 pcpu_get_vm_areas+0x0/0x790 vmalloc 0xffffe8ffffc00000-0xffffe8ffffe00000 2097152 pcpu_get_vm_areas+0x0/0x790 vmalloc Attached: - test script (see feedftp) - tarball containing the proc file at various times during the test (see vmallocinfo.32.tar) - dmesg output showing OOM Killer at work (see dmesg-oom.32.txt) May be related: https://bugs.launchpad.net/ubuntu/+source/vsftpd/+bug/682865 ========= ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-28-server (not installed) Regression: No Reproducible: Yes ProcVersionSignature: User Name 2.6.32-28.55-server 2.6.32.27+drm33.12 Uname: Linux 2.6.32-28-server x86_64 AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory AplayDevices: Error: [Errno 2] No such file or directory Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory CurrentDmesg: [ 12.360149] eth0: no IPv6 routers present Date: Wed Feb 16 14:00:19 2011 Lspci: Error: [Errno 2] No such file or directory Lsusb: Error: [Errno 2] No such file or directory MachineType: Bochs Bochs PciMultimedia: ProcCmdLine: root=UUID=7bbf58be-9c5f-4113-ad1b-4611fd131d33 ro ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux dmi.bios.date: 01/01/2007 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr: dmi.product.name: Bochs dmi.sys.vendor: Bochs
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/720095 Title: vsftpd causes a vmalloc space leak in Lucid -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
