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Jerry D. Hedden wrote: >I have a cron job (a bash script) that runs every 6 minutes, polling >and downloading info off the web. > >The problem is the script hangs at various places and the stuck >processes keep building up. > >Further, I have to kill these processes using the task monitor: kill >reports 'No such process'. Christopher Faylor replied: >As mentioned above, a test case showing the problem sure would be >nifty. Jerry D. Hedden responded: >I agree and would have provided one if I could. However, I have no >idea what is causing this, nor how to write a test case for it. > >As I said, it's a cron job running a bash script - nothing fancy. The >hang does not happen on every invokation of the script, but it does >occur frequently. Where in the script it gets stuck seems to be >random: wget, mkdir, mv, date, diff, etc.. Christopher Faylor asked: > Can you at least post the script? Certainly. Attached. Christopher Faylor asked: > Also, knowing the first snapshot which shows the problem would be helpful. Jerry D. Hedden responded: >As I said, these sort of problems started after the 2006-03-09 snapshot. > I double checked, and the problem does occur with the 2006-03-13 >snapshot. Christopher Faylor replied: >What you said was "However, I have experienced problems with most >snapshots after it", where "it" was the 2006-03-09 snapshot. The use of >the word "most" rather than "all" there implies, to me at least, that >there were snapshots that worked. You seem to now be saying that this >is not the case, which implies that something stopped working for you >on 2006-03-13 and that no snapshot on or after that point worked. Let me clarify. Starting with the 2006-03-13 snapshot, every snapshot I tried caused problems. Although I did not try every one (sorry, but I did not keep track of which ones), I know I tried over half of the 18 or so snapshots in question. Since none that I tried worked, I have been held at the 2006-03-09 snapshot. The basic problem noted in each case had to do with forks - either a cron script hangs (as reported), a build script fails because of fork failures ('resource not available' type messages), or couldn't bring up shell windows (as reported in http://cygwin.com/ml/cygwin/2006-03/msg00487.html). All of this started with Christopher Faylor's changes related to 'fork' that started with the 2006-03-13 snapshot. As I did report one problem related to this matter on the 3/15 but go no response, I figured the work was ongoing. I just kept trying subsequent snapshots hoping the problem would be cleared up eventually, but it hasn't.
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