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RE: postinstall hang
- From: "Popper, Samuel \(US SSA\)" <samuel dot popper at baesystems dot com>
- To: <cygwin at cygwin dot com>
- Date: Tue, 1 Apr 2008 09:47:22 -0400
- Subject: RE: postinstall hang
- References: <001901c89348$cd86c8b0$06bca8c0@bigtower> <A28965E490DE4B4DBE938ECF7CC19C04073F4FB1@blums0014.na.baesystems.com> <47F19881.2080508@byu.net>
> | $ NUM=1; while true ; do echo $NUM; NUM=$(( $NUM + 1 )); done
> |
> | will run indefinitely,
>
> because it doesn't fork
Correct; that's what I was trying to demonstrate.
> | $ NUM=1; while true ; do echo `echo $NUM` ; NUM=$(( $NUM + 1 ));
done
> |
> | Hangs pretty quickly,
>
> because it forks a huge number of processes, and each fork is likely
to be
> tripped up by a BLODA
As I understand it, that should fork once per iteration.
Running with cut-down PATH:
[samuel.popper@localhost ~]$ echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin
[samuel.popper@localhost ~]$ NUM=1; while true ; do echo `echo $NUM` ;
NUM=$(( $NUM + 1 )); done
1
2
Here, it hung after 2 iterations. The default /etc/profile forks more
than that!
Other than sneaking in via PATH, the only moderately intrusive thing
running on the system is Sysinternal's ProcessExplorer. But I tried
running with that closed, and it made no difference.
Is there anything else that could contribute to BLODA?
Thanks,
-Sam
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