Messages in this thread |  | | Date | Tue, 13 Nov 2001 13:39:07 -0200 (BRST) | Subject | Re: /proc/<pidnumber>/stat hangs reading process | From | "Marcelo Roberto Jimenez" <> |
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Mika,
> Hello, > basically this posting is about the same problem as one I posted in > September: > > http://www.uwsg.iu.edu/hypermail/linux/kernel/0109.0/0764.html > > It's essentially the same situation: I was running mozilla and it stopped > responding to any input. I tried to kill it with control-c, kill and > finally with kill -9, but none helped. When I tried to look at the output > of top and ps, the exactly same symptons appeared; those processes didn't > finish and can't be killed either. When I do strace ps the output ends > at: > > stat64("/proc/16515", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0 > open("/proc/16515/stat", O_RDONLY) = 7 > read(7,
I'm having this problem too, for a long time. It's usually associated with big loads ( for my machine, of course, a PII-233 ). It has happened while opening lot's of pages with opera, but has also happened while compiling 3 kernels at the same time and playing a video with xine or aviplay.
The behavior is the same: ps blocks, gtop blocks, killall blocks, anything that tries to get the process information blocks too.
The machine can be used as long as a program does not try to call the problematic function, whitch I wasn't able to trace down.
I haven't had this problem for a while, basically because I try not to stress these ``hanging'' applications anymore, so that I can work, but I'll try to see if I can reproduce the bug with the new VM.
The problem is: what can we do, to investigate the problem, once ps starts to block?
Regards,
Marcelo.
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