Re: [tbox-l] AIX 5.2 - libc.a issues...

[David C. <cl...@au...>]

For problem #1, the process in wait() is most likely not hung, but
waiting on a child process.  (Maybe a child is hung).  Check the ps output
for children of that process and see what is running.


For problem #2 and #3, I think these are both the same thing.
The sed command is in read() because it is waiting for input.

For example, if I do this:
$ sed -e 's/foo/bar/'

it just sits there waiting for input, and if I attach to the process
it shows it is in read().  So it wants input.
More typical use would be:
$ cat somefile | sed -e 's/foo/bar/'
or
$ sed -e 's/foo/bar/' < somefile
or
$ sed -e 's/foo/bar/' somefile



On Tue, Feb 28, 2006 at 06:07:42PM -0500, Scott Fletcher wrote:
> Hi!  After some researching and debugging, I came to the conclusion that
> there is some issues with the AIX's libc.a file.  
> 
> Problem #1 - When I tried to compile OpenSSL, the compiler hung. So, a
> simple testcase here that produce this problem.
> 
> --snip--
> # gcc -0 aix_ppc32.o aix_ppc32.s
> --snip--
> 
> Then I ran the debugger and got this.
> 
> --snip--
> (gdb) backtrace
> #0 0xd022cf18 in wait()
> #1 0xffffffff in ?? () from (unknown load module)
> --snip--
> 
> The wait() is found in the AIX's libc.a file.
> 
> 
> 
> Problem #2 - When I tried to run the GNU Sed command, it got hung. So, a
> simple testcase here that produce the problem.
> 
> --snip--
> # export install_sh='/usr/local/src/sed-4.1.5/config/install-sh'
> # sed -e "install_sh=$install_sh" > zz_blank.txt
> --snip--
> 
> When I ran the debugger, I got this.
> 
> --snip--
> (gdb) backtrace
> #0 0xd01e62c8 in read()
> #1 0xffffffff in ?? () from (unknown load module)
> --snip--
> 
> The read() is found in the AIX's libc.a file.
> 
> Problem #3 - When I tried to run both the AIX's sed and the GNU's Sed,
> they still got hung.  So, a simple testcase here used by both of them
> that produce the problem.
> 
> --snip--
> # sed -e 'ls/^X//'
> --snip--
> 
> When I ran the debugger, I got this.
> 
> --snip--
> (gdb) backtrace
> #0 0xd01e62c8 in read()
> #1 0xffffffff in ?? () from (unknown load module)
> --snip-
> 
> How come we have this problem? What's the solution to these problems. I
> am unable to build the web server (GNU softwares) on it's own without
> doing some of the source code hacking.
> 
> Thanks...
> 
>  
> 

-- 
David Clissold
cl...@au...