Comment 2 for bug 859311

Just a me too on this one. I ran into this on a 10.04.3 system with some Matlab jobs that have been running for a couple of weeks.

# ps -f -C MATLAB
UID PID PPID C STIME TTY TIME CMD
1234 21267 21256 99 Jan09 pts/3 1184016086-14:43:06 /opt/matlabR2011b/bin
1234 21578 21567 97 Jan09 pts/5 22-23:06:31 /opt/matlabR2011b/bin/glnxa64
1234 21688 21666 96 Jan09 pts/6 22-17:46:41 /opt/matlabR2011b/bin/glnxa64
1234 21786 21775 89 Jan09 pts/7 21-05:12:21 /opt/matlabR2011b/bin/glnxa64
1234 21884 21873 99 Jan09 pts/9 1184016084-11:35:28 /opt/matlabR2011b/bin

# cat /proc/21267/stat
21267 (MATLAB) S 21256 21267 21256 34819 21267 4202496 48728480602 10279 1 0 85619631648 4611685975611267009 16 1 20 0 49 0 176768180 3195682816 527162 18446744073709551615 4194304 4206714 140735315194304 140735315193832 140009299867740 0 134742022 0 151526638 18446744073709551615 0 0 17 15 0 0 0 0 0

# cat /proc/21884/stat
21884 (MATLAB) S 21873 21884 21873 34825 21884 4202496 47007338124 10280 1 0 85595226373 4611685975617266477 6 1 20 0 49 0 176794854 3336249344 558780 18446744073709551615 4194304 4206714 140734232928064 140734232927592 140313580697692 0 134742022 0 151526638 18446744073709551615 0 0 17 15 0 0 0 0 0

For what it's worth, htop seems to work properly and show the CPU usage of these processes.

Here's some system info:

# uname -a
Linux myhost 2.6.32-37-generic #81-Ubuntu SMP Fri Dec 2 20:32:42 UTC 2011 x86_64 GNU/Linux

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS"

Let me know if any other info would be helpful while these jobs are still running. :-)