exception with get_num_ctx_switches --> raise RuntimeError("line not found")

[giampaolo]

From Curtin1...@gmail.com on October 18, 2012 20:47:51

What steps will reproduce the problem?  
1. >>> import psutil
>>> p = psutil.Process(29562)
>>> p.as_dict() 2. 3. 

What is the expected output?  


What do you see instead?  
throw exception in 
_pslinux.py", line 638, in get_num_ctx_switches
    raise RuntimeError("line not found") 

What version of psutil are you using? What Python version?  
psutil 0.6.1
Python 2.7 ( r27 :82500, Aug  3 2011, 11:55:34) 

On what operating system? Is it 32bit or 64bit version?  
Linux x86_64 GNU/Linux 2.6.18-53.1.4.el5 

Please provide any additional information below.  
cat  /proc/29562/status
Name:   sh
State:  S (sleeping)
SleepAVG:       98%
Tgid:   15393
Pid:    15393
PPid:   15358
TracerPid:      0
Uid:    703934  703934  703934  703934
Gid:    1052    1052    1052    1052
FDSize: 256
Groups: 1052 630013 630397 630538 630614 630625
VmPeak:    21408 kB
VmSize:    21408 kB
VmLck:         0 kB
VmHWM:      2840 kB
VmRSS:      2840 kB
VmData:      776 kB
VmStk:        84 kB
VmExe:       700 kB
VmLib:      5364 kB
VmPTE:        92 kB
StaBrk: 008bf000 kB
Brk:    05c76000 kB
StaStk: 7fff45a50760 kB
Threads:        1
SigQ:   0/1064959
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000010000
SigIgn: 0000000000384004
SigCgt: 000000004b813efb
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000
Cpus_allowed:   
7fffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff
Mems_allowed:   00000000,0000000f

Original issue: http://code.google.com/p/psutil/issues/detail?id=337

[giampaolo]

From g.rodola on October 18, 2012 11:49:48

What linux distro is this?

[giampaolo]

From Curtin1...@gmail.com on October 19, 2012 10:39:11

-sh-3.1$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.1 (Tikanga)

[giampaolo]

From tipec...@gmail.com on November 01, 2012 09:34:36

From man 5 proc:

* voluntary_context_switches,   nonvoluntary_context_switches: Number of 
voluntary and involuntary  context  switches (since Linux 2.6.23).

Tikanga uses 2.6.18, so it does not have those fields. One solution would be to 
raise a NotImplementedError rather than a RuntimeError, see the attached patch.

Attachment: fix-get_num_ctx_switches-on-old-kernels.patch

[giampaolo]

From g.rodola on March 02, 2013 04:13:33

Updated csets after the SVN -> Mercurial migration: r27 == revision 446c22c12039

[giampaolo]

From g.rodola on April 07, 2013 18:21:49

Status: FixedInHG

[giampaolo]

From g.rodola on April 11, 2013 02:17:39

Labels: -Milestone-0.6.2 Milestone-0.7.0

[giampaolo]

From g.rodola on April 12, 2013 11:21:26

Status: Fixed