Rsync hang on HP-UX 10.20

[xiaoqin_qiu at agilent.com]

Hi,

Thank J.W. for your information.

The strange thing is child process is waiting for parent to kill it, in the meantime, the parent process is waiting for child process. 

Is this a bug or what? Is there a fix for this type of problem?

Thank you again for your help!

I ran the installation again and here are some trace outputs from parent process: 
(4188 is child process ID. 
 The trace output from child process is the same as my previous post except the process ID.)

4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: waitpid(4188, 0x7b03ab50, 1) = 0
4187: gettimeofday(0x7b03ac40, 0) = 0
4187: gettimeofday(0x7b03ac50, 0) = 0
4187: select(0, 0, 0, 0, 0x7b03ac30) = 0

Xiaoqin Qiu
Technical Computing Group
IT Infrastructure Services Organization
Agilent Technologies, Inc.
(818)879-6220
xiaoqin_qiu at agilent.com
 

-----Original Message-----
From: jw schultz [mailto:jw at pegasys.ws]
Sent: Tuesday, August 19, 2003 7:05 PM
To: rsync at lists.samba.org
Subject: Re: Rsync hang on HP-UX 10.20


Please invest in an enter key.

On Tue, Aug 19, 2003 at 07:38:51PM -0600, xiaoqin_qiu at agilent.com wrote:
[reformatted due to insanely long lines]
> Hi,
> 
> We downloaded the latest rsync 2.5.6 source code and
> compiled it on HP-UX for both 10.20 and 11.x. Rsync runs
> fine if we run it from the command line on both platforms.
> But after we put rsync command into a HP Software
> Distributor package configure script (just a shell script
> with rsync command in it) and run swinstall, which will
> get installation bits including the configure script, put
> the installation bits into place and fork process to run
> the configure script, rsync hang on HP-UX 10.20 boxes.
> From the log, we can see rsync actually already finished
> all the work, however, both rsync processes were still
> running. As the result, swinstall won't finish either.
> Swinstall uses tcp 2121 and udp 2121 ports.
> 
> I ran trace on the hang rsync processes. The parent rsync
> process seemed waiting for the child rsync process which
> is reasonable. The child rsync process seemed traped in a
> loop of msleep calls.

The child is waiting for the parent to kill it with SIGUSR2.
Evidently the signal wasn't delivered.

> Here are some trace outputs:
> 
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: gettimeofday(0x7b03ac00, 0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 11982: select(0, 0, 0, 0, 0x7b03abf0) = 0
> 11982: gettimeofday(0x7b03ac10, 0) = 0
> 
> Has anyone experienced similar hangs and know the possible reasons?
> 
> Thank you very much for your help!
> 
> Xiaoqin Qiu
> Technical Computing Group
> IT Infrastructure Services Organization
> Agilent Technologies, Inc.
> (818)879-6220
> xiaoqin_qiu at agilent.com
>  
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-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
	email address:		jw at pegasys.ws

		Remember Cernan and Schmitt
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