(Mr. Markus Friedl asked me to mail to this address)
Hello there.
My problem is as follows:
I am using OpenSSH 2.5.1 (Can't upgrade for now, explain will be given
later...) on AIX 4.1.5 (Can't upgrade as well...)
I have written a distribution script that distributes tgz files along with
their installation script, the distribution script simply scp the file and
then reconnects and invokes the install script.
While I am loading the distributing machine the returned code from a
remotely invoked script SOMETIMES (happens randomly) returns me -1 (255)
instead of the real returned code.(When I say "loading" I mean approx
9 scp
running simultaneously and approx 9 ssh install sessions while doing that...)
I can't upgrade for now as I am working for the Israeli Air Force in a
top-secret facility, it takes quite a while to insert a code from the
Internet (Intensive code checking...)
I can't even give you the debug information... but, this is very simple.
by checking two outputs I have ( using -v -v -v) while 1 of them was
alright and the 2nd wasn't, the ONLY difference is that the "bad"
session
doesn't have this line:
debug: client_input_channel_req: channel 0 rtype exit-status reply 0
I am not a programmer, but it seems as if the sshd doesn't return the
status reply at all, or at least- the client due to the extreme system load
is not "picking" this signal...
Again: using ssh1 (the commercial version of ssh1) it DIDN'T happen (the
system was loaded even more sometimes...)
sending a debug information of the server could be a bit problematic as it
means I have to run it on all machines (a few hundreds...) - still, it
seems like a bug that accures due to a high system load... so the sshd is
probobly okay (I connected them one by one doing only exit 0... they all
came out fine... doing exit 0 while distributing got screwd sometimes...)
The sample Mr. Markus Friedl gave me (sh -c 'for i in 1 2 3 4 5 6; do ssh
localhost exit $i; echo $?; done') is irrelevant as it works fine for me as
well (as I said, when I am connecting one by one - everything works fine,
but when I am opening approx 10 ssh connections while 10 scp are killing
the system/cpu it does happen).
Please tell me what you think...
Thank you very very much!
Regards
Gil Disatnik
UNIX system administrator
GibsonLP at EFnet
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