Hi.
John Keeping wrote in
<x+didggapaynn...@john.keeping.me.uk>:
|On Mon, Dec 21, 2020 at 05:26:19PM +0100, Steffen Nurpmeso wrote:
|> I discovered today that cgit no longer delivers pages, and it must
|> have been like that for some time. The server looks show
|> successful delivery, the cgit cache is populated and rotated just
|> correctly, but all cgit delivers is that final error of main() as
|>
|> <div class='error'>Error processing page: Invalid argument (22)</div>
|>
|> (surely a misconfiguration that this is not a real HTML page,
|> i recall it took some time to figure out about about-filter, just
|> "doing it" (<pre>cat(1)</pre>)).
|>
|> If i set "cache-size=0" then the desired page is delivered.
|> Note the cache itself is managed as usual with the default
|> cache-size=1999.
|>
|> The files in the cache are 0600, i thought maybe that was it, but
|> the setting is actively reverted to this mask (i never looked at
|> cgit code except grepping the error). It has always been so, the
|> oldest cache entry was
|>
|> -rw------- 1 lighttpd lighttpd 3023 Mar 18 2018 d2200000
|>
|> I am pretty sure cgit delivered some weeks ago, the most notable
|> difference is that AlpineLinux switched to Lighttpd 1.4.56 then
|> .57, which seems to have brought tremendous changes under the
|> hood, like HTTP/2 support and OCSP as well as support for all the
|> different TLS libraries, whereas before it only was OpenSSL and
|> compatibles, i think. We have HTTP/2 not enabled yet.
|>
|> Anything i can do about this?
|
|Have you looked at the log output?
Yes, sorry, terrible mess above. Monday and no end.
- Logs show nothing. I enabled
debug.log-request-handling = "enable"
but that showed nothing. But wait, there was
server.breakagelog that was needed .. as below!
|This error comes from cgit.c::cmd_main() as a result of
|cache.c::cache_process() returning an error. It looks like all of the
Yes.
|error paths there will write a more detailed error message to stderr.
Unfortunately nothing .. but with breakaglog there is
[cgit] error printing cache /var/lib/lighttpd/cgit/b1000000: Invalid argument
(22)
But the file was generated normally:
# ll /var/lib/lighttpd/cgit/b1000000
-rw------- 1 lighttpd lighttpd 23417 Dec 21 20:22
/var/lib/lighttpd/cgit/b1000000
|I don't use lighttpd so I don't know whether that output is captured,
|but normally output written to stderr will end up in a log file.
Was server.breakagelog i had forgotten about.
|>From a quick look at the code, given that the problem seems to be caused
|by updating the web server, my guess is that you'll see the error:
|
| [cgit] error printing cache ...: Invalid argument (22)
|
|and this may be caused by sendfile(2) failing due to some difference in
|how the web server is setting up the output file descriptor. You may
|want to rebuild CGit without HAVE_LINUX_SENDFILE and see if that works.
I did not know about 'cgi.x-sendfile = "enable"' yet, but setting
it does not matter from cgit's point of view.
|(If it does, we should add better fallback handling for the case where
|stdout is not a valid output for sendfile().)
Ok, i will hm do that mirroring the ArchLinux recipe and report
back.
Thanks!
|John
--End of <x+didggapaynn...@john.keeping.me.uk>
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)
