On 2011-05-17 15:54:26 +0200, Vincent Lefevre wrote:
> Not sure whether this is related, but cvs had the same problem:
>
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=179729
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=232555
After testing with "strace -f -t", I can see that the problem comes
from that the write's do not block: all the output is sent by the
Perl script before I do anything in less.
If I omit the 2>&1, then the write's from the Perl script block as
expected. They also block with the following Perl script (and 2>&1):
#!/usr/bin/env perl
use strict;
foreach my $i (1..100000)
{
warn if $i == 17;
print "$i\n";
}
I think that the cause of the problem may come from that the
svn client starts a child process (ssh). This would explain
the similarity with the old cvs bug (which occurred only with
ssh and stderr redirected to stdout too).
--
Vincent Lefèvre <[email protected]> - Web: <http://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
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