Following a suggestion in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695182#513 I tested older kernels: seems that PAE was always (or at least back to karmic 2.6.31) prone to OOM under the "sleep test". Curiously I found that non-PAE kernels of that vintage might also OOM, maybe depending on the value of /proc/sys/fs/file-max .
Cheers, Paul Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/ School of Mathematics and Statistics University of Sydney Australia --- Machine: Dell Optiplex 760, 4GB RAM Results: Version Name kernel 4.10 Warty 2.6.8 (could not install from CD) 5.04 Hoary 2.6.10 5.10 Breezy 2.6.12 6.06 Dapper 2.6.15 6.10 Edgy 2.6.17 7.04 Feisty 2.6.20 (could not install from CD) 7.10 Gutsy 2.6.22 (could not install from CD) 8.04 Hardy 2.6.24 8.10 Intrepid 2.6.27-7 (no PAE) non-PAE(file-max=330344,default)=OK (about 19000 to file limit) non-PAE(file-max=555000)=OOM (after about 31000) 9.04 Jaunty 2.6.28 9.10 Karmic 2.6.31-14 PAE=OOM non-PAE(file-max=327956,default)=OK (about 18500 to file limit) non-PAE(file-max=444000)=OK (about 26000 to file limit) non-PAE(file-max=555000)=OK (to PID limit) non-PAE(file-max=888000)=OK (to PID limit) non-PAE(file-max=999999)=OOM (after about 32500) 10.04 Lucid 2.6.32-65 PAE=OOM non-PAE(file-max=330827,default)=OK (about 19000 to file limit) non-PAE(file-max=377000)=OK (about 21500 to file limit) non-PAE(file-max=444000)=OK (about 25500 to file limit) non-PAE(file-max=555000)=OOM (after about 31500) 10.10 Maverick 2.6.35-22 (PAE=?) non-PAE(file-max=330677,default)=OK (to PID limit) 11.04 Natty 2.6.38-8 PAE=OOM non-PAE(file-max=330426,default)=OK (to PID limit) 11.10 Oneiric 3.0.0 PAE=OOM non-PAE=OK 12.04 Precise 3.2 12.10 Quantal 3.5 13.04 Raring 3.8 13.10 Saucy 3.11 14.04 Trusty 3.13 PAE=OOM (no non-PAE kernel) 14.10 Utopic 3.16 References: http://en.wikipedia.org/wiki/List_of_Ubuntu_releases https://wiki.ubuntu.com/Releases http://old-releases.ubuntu.com/releases/ http://bugs.debian.org/695182 http://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098961 Commands used: sudo sh -c 'echo 999999 > /proc/sys/fs/file-max' bash -c 'n=0; while [ $n -lt 33000 ]; do sleep 600 & ((n=n+1)); ((m=n%500)); if [ $m -lt 1 ]; then echo -n "$n - "; date; free -l; sleep 1; fi; done' ** Bug watch added: Debian Bug tracker #695182 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695182 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1098961 Title: PAE regression: OOM with just a few sleeps To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
