bug#65324: "make check" hangs on NetBSD 9.3

[Michael Albinus]

Bruno Haible <bruno@clisp.org> writes:

Hi Bruno,

> I've applied the patch to lisp/net/tramp-sh.el (since there
> is no lisp/tramp-sh.el in this version of emacs).

Yep, I did the work in the Tramp repository, which has a slightly
different directory structure.

> But anyway. With this change, the "gmake check" run goes further along:

Good. After the night, I didn't like the patch anymore, it was too
complicate. So I have rewitten it, and pushed it to Emacs master.

> The debug log repeats itself starting around line 7783.
> Find it attached (again, truncated to 10000 lines).

Hmm, the debug traces tell us:

--8<---------------cut here---------------start------------->8---
00:54:42.448637 tramp-send-command (6) # cd /tmp/tramp-test1ig90x/foo/\ foo\ 
bar\ baz\  
\@foo\@bar\@baz\@\$foo\$bar\$\$baz\$-foo-bar-baz-\%foo\%bar\%baz\%\&foo\&bar\&baz\&\?foo\?bar\?baz\?\*foo\+bar\*baz\+\'foo\"bar\'baz\"\#foo\~bar\#baz\~\!foo\|bar\!baz\|\:foo\;bar\:baz\;\<foo\>bar\<baz\>\(foo\)bar\(baz\)\[foo\]bar\[baz\]\{foo\}bar\{baz\}/
 && \ln -sf /tmp/tramp-test1ig90x/foo/\   foo\ bar\ baz\  
\@foo\@bar\@baz\@\$foo\$bar\$\$baz\$-foo-bar-baz-\%foo\%bar\%baz\%\&foo\&bar\&baz\&\?foo\?bar\?baz\?\*foo\+bar\*baz\+\'foo\"bar\'baz\"\#foo\~bar\#baz\~\!foo\|bar\!baz\|\:foo\;bar\:baz\;\<foo\>bar\<baz\>\(foo\)bar\(baz\)\[foo\]bar\[baz\]\{foo\}bar\{baz\}/\
 foo\ bar\ baz\  
\@foo\@bar\@baz\@\$foo\$bar\$\$baz\$-foo-bar-baz-\%foo\%bar\%baz\%\&foo\&bar\&baz\&\?foo\?bar\?baz\?\*foo\+bar\*baz\+\'foo\"bar\'baz\"\#foo\~bar\#baz\~\!foo\|bar\!baz\|\:foo\;bar\:baz\;\<foo\>bar\<baz\>\(foo\)bar\(baz\)\[foo\]bar\[baz\]\{foo\}bar\{baz\}
 ./\       foo\ bar\ baz\  
\@foo\@bar\@baz\@\$foo\$bar\$\$baz\$-foo-bar-baz-\%foo\%bar\%baz\%\&foo\&bar\&baz\&\?foo\?bar\?baz\?\*foo\+bar\*baz\+\'foo\"bar\'baz\"\#foo\~bar\#baz\~\!foo\|bar\!baz\|\:foo\;bar\:baz\;\<foo\>bar\<baz\>\(foo\)bar\(baz\)\[foo\]bar\[baz\]\{foo\}bar\{baz\}foo
 2>/dev/null; echo tramp_exit_status $?
--8<---------------cut here---------------end--------------->8---

Again, one line. Here I cannot fix too much, the files are such long in
the testsuite. And NetBSD has restricted ressources, for example it
reports PIPE_BUF being 512, where other systems report 4096 ...

So I exclude this special "ln -sf" call for NetBSD, such longuish file
names shouldn't happen in the wild (I hope). See the reworked patch for
tramp-tests.el.

> Bruno

Best regards, Michael.

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