Crystal Kolipe(kolipe.c@exoticsilicon.com) on 2021.08.27 01:40:15 -0300:
> On Thu, Aug 26, 2021 at 11:46:15AM +0200, Stefan Sperling wrote:
> > On Thu, Aug 26, 2021 at 06:20:08AM -0300, Crystal Kolipe wrote:
> > > On Thu, Aug 26, 2021 at 02:47:40AM +0000, iio7 wrote:
> > > > Any caveats to look out for?
> > >
> > > There is an issue with httpd and large file uploads, ( > ~ 600 Mb), which was introduced sometime after OpenBSD 6.1.
> > >
> > > We had a system handling such large file uploads via http, (which is probably not a typical use case), and it worked fine whilst it was running OpenBSD 6.1. When OpenBSD 6.6 was released we did a fresh installation and found that uploads over about 600 Mb would randomly abort. Since by this time the system had fallen into disuse anyway, as far as I know nobody here bothered to investigate further, but testing now on an OpenBSD 6.9 installation, I can see that the bug still exists.
> > >
> >
> > If your test on 6.9 involves a handoff to fcgi (e.g. nextcloud) then
> > please try again with a server running -current. There was a related
> > bug fixed in May after 6.9 was branched.
>
> A quick test on -current with a very simple CGI handler invoked via
> slowcgi showed different behaviour. It now results in a repeatable
> kernel panic after uploading about 1098-1119 Mb. Smaller uploads work
> fine.
>
> As we know that it worked at one point, albeit several years ago, I'll
> try to find the commit that broke it. That might take a while, though.
Even if you cannot find the commit or time range, please send a crash report
with the panic (and -current dmesg) to bugs@.
Thanks,
Benno
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