Re: cygwin 1.7.5, perl *** fatal error TP_NUM_W_BUFS too smal

["Nasser M. Abbasi" <nma at 12000 dot org>]

On 6/6/2010 8:32 PM, Reini Urban wrote:

> Nasser M. Abbasi schrieb:
> > On 6/4/2010 2:44 AM, Nasser M. Abbasi wrote:
> > > On 6/4/2010 1:36 AM, Corinna Vinschen wrote:
> > > > > Error: Cannot read 'img2.png': No such file or directory
> > > > > Converting image #1
> > > > > 0 [main] perl 3400 C:\cygwin\bin\perl.exe: *** fatal error -
> > > > > Internal error: TP_NUM_W_BUFS too small."
> > >
> > > > This looks like an internal error in Cygwin which runs out of TLS
> > > > filename buffers. For a start, could you please strace the perl
> > > > process? This may help to figure out the function in which the problem
> > > > occurs.
> > > >
> > > >
> > > > Corinna
> >
> > > $ export PERLDB_OPTS="NonStop frame=2"
> > > make test
> >
> > I got a little more useful output using this:
> >
> > $export PERLDB_OPTS="NonStop AutoTrace frame=2"
> > $ make test>&  out.txt


> PERLDB_OPTS is only for the perl debugger, which you don't run I suppose.
> Corinna wanted a strace for perl, around the section where the fork
> fails. It must not be the whole 2GB.
>
> To build a debugging perl you'd need the source package and run
> ./build --debug
> But this won't be needed I suppose, as it's a cygwin error around fork.

Ok, thanks for letting me know.

> > Looking at out.txt, the output around the crash is below. It seems to
> > come after exec($cmd). It looks like it can't spawn a new process.
> >
> > btw, this is windows 7. new PC, 8 GM ram.
>
> UAC already tried to disable?

do not know. If this is something I can check on my end or something, 
pls let me know. This is a new PC, and I did not change any UAC settings 
on it.  All default setting on windows 7.

> > If you need the complete file out.txt, I can send it to you directly.
> >
> > thanks
> > --Nasser
> >
> > =========
> >
> > 262: my ($self,$cmd,$in,$out,$err) = @_;
> > 263: carp qq{Debug (syswait): Running "$cmd"\n} if($Verbose);
> > 265: my $status;
> > 266: my $child_pid;
> > 267: if ($child_pid = fork) {


> You can try to add a small sleep here after line 267, the fork.
>          sleep(0.2);

OK, Will do that, I need to muck around the perl code and find where to 
do this. will let you know if it changes anything.


> > 268: $status = waitpid($child_pid, 0);
> > ######### Forked, but do not know how to create a new TTY. #########
> > Since two debuggers fight for the same TTY, input is severely entangled.
> >
> > I know how to switch the output to a different window in xterms, OS/2
> > consoles, and Mac OS X Terminal.app only. For a manual switch, put the name
> > of the created TTY in $DB::fork_TTY, or define a function
> > DB::get_fork_TTY() returning this.
> >
> > On UNIX-like systems one can get the name of a TTY for the given window
> > by typing tty, and disconnect the shell from TTY by sleep 1000000.
> >
> > 274: unless(exec($cmd)) {
> > 0 [main] perl 4524 C:\cygwin\bin\perl.exe: *** fatal error - Internal
> > error: TP_NUM_W_BUFS too small.
> > 269: carp "Debug (syswait): Finished child process: #$child_pid\n"
> > 270: if($Verbose);
> > 271: $child_pid = 0;
> > 272: return($?);
> > exited L2hos::Unix::syswait
> >
> > Error while converting image
> > 4239: if (! -r "${PREFIX}$img") {
> > 4240:&write_warnings("\nFailed to convert image $psname.ps")
> > ========================
> >
> > --
> > Problem reports: http://cygwin.com/problems.html
>
> We haven't got this report, BTW.

OK, will make an official report.


> Also, where do have your latex2html from?

I have documented the latex2html installation on my page below, so I 
suppose anyone can reproduce what I did easily (if they have windows 7, 
64 bit OS, which I do not know if it is releated or not). Please see 
below for the steps:

http://12000.org/my_notes/l2hwin/index.htm


--Nasser

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