Date: Fri, 6 Dec 2024 03:46:42 +0100 From: FreeBSD User <freebsd@walstatt-de.de> To: freebsd-current@freebsd.org, freebsd-ipfw@freebsd.org Subject: Re: HELP! fetch: stuck forever OR error: RPC failed: curl 56 recv failure: Operation timed out Message-ID: <20241206034709.4dd32cc5@thor.intern.walstatt.dynvpn.de> In-Reply-To: <20241205173354.23c4e592@hermann.intern.walstatt.dynvpn.de> References: <20241203204609.68e04364@hermann.dmz.walstatt.dynvpn.de> <6626e5c0-ba01-4966-a28c-82a25251ca3f@app.fastmail.com> <20241205115103.1ed6d7f6@hermann.intern.walstatt.dynvpn.de> <Z1HM1ERM_iZhc1uq@mail.gmail.com> <20241205173354.23c4e592@hermann.intern.walstatt.dynvpn.de>
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Am Thu, 5 Dec 2024 17:33:54 +0100
FreeBSD User <freebsd@walstatt-de.de> schrieb:
I found the culprit!
Disabling IPFW ("ipfw disable firewall") turns system back to normal!
For the record: on recent CURRENT, since approx. Nov. 30 and/or December 1st CURRENT seems to
corrupt network connections.
IPFW is compiled statically into the kernel.
The problem sketched below can be reproduced in a more or less obvious manner on recent
CURRENT: git pull/git clone of a regular FreeBSD source repo or ports via git+https takes
either a couple of time (up to several mintes to initiate the pull) - or, in some worse cases
here, the box runs into
error: RPC failed; curl 56 Recv failure: Operation timed out
claws-mail complains about "corrupted/broken stream", fetching emails takes Aeons - forever,
the client does not come back even after several hours.
> On Thu, 5 Dec 2024 16:55:00 +0100
> Daniel Tameling <tamelingdaniel@gmail.com> wrote:
>
> > On Thu, Dec 05, 2024 at 11:51:03AM +0100, FreeBSD User wrote:
> > > On Wed, 04 Dec 2024 17:20:39 +0000
> > > "Dave Cottlehuber" <dch@skunkwerks.at> wrote:
> > >
> > > Thank you very much for responding!
> > >
> > > > On Tue, 3 Dec 2024, at 19:46, FreeBSD User wrote:
> > > > > On most recent CURRENT (on some boxes of ours, not all) fetch/git seem
> > > > > to be stuck
> > > > > forever fetching tarballs from ports, fetching Emails via claws-mail
> > > > > (TLS), opening
> > > > > websites via librewolf and firefox or pulling repositories via git.
> > > > >
> > > > > CURRENT: FreeBSD 15.0-CURRENT #1 main-n273978-b5a8abe9502e: Mon Dec 2
> > > > > 23:11:07 CET 2024
> > > > > amd64
> > > > >
> > > > > When performing "git pull" und /usr/ports, I received after roughly 5-7 minutes:
> > > > >
> > > > > error: RPC failed: curl 56 recv failure: Operation timed out
> > > >
> > > > Generally it would be worth seeing if the HTTP(S) layers are doing the right thing
> > > > or not, and then working down from there, to tcpdump / wireshark and then if
> > > > necessary into kernel itself.
> > >
> > > My skills are limited, according to packet analysis utilizing tcpdum/wireshark (and
> > > theory,of course). I tried due to "a feeling" my used older Intel based NIC could have
> > > some checksum issues like in the past (I saw e1000 driver updates recently flowing
> > > into FreeBSD CURRENT).
> > > >
> > > > If fetch fails reliably in ports distfile fetching, then isolate a suitable tarball,
> > > > and try it again in curl, with tcpdump already prepared to capture traffic to the
> > > > remote host.
> > > >
> > > > tcpdump -w /tmp/curl.pcap -i ... host ...
> > > >
> > > > env SSLKEYLOGFILE=/tmp/ssl.keys curl -vsSLo /dev/null --trace
> > > > /tmp/curl.log https://what.ev/er
> > > >
> > > > I would guess that between the two something useful should pop up.
> > > >
> > > > I like opening the pcap in wireshark, it often has angry red and black highlighted
> > > > lines already giving me a hint.
> > > >
> > > > The SSLKEYLOGFILE can be imported into wireshark, and allows decrypting the TLS
> > > > traffic as well in case there are issues further in. Very handy,
> > > > see https://everything.curl.dev/usingcurl/tls/sslkeylogfile.html for how to do that.
> > > >
> > > > If your issues only occur with git pull, its also curl inside and supports similar
> > > > debugging. Ferreting
> > > > through https://stackoverflow.com/questions/6178401/how-can-i-debug-git-git-shell-related-problems/56094711#56094711 should get you similar info.
> > > >
> > > > A+
> > > > Dave
> > > >
> > >
> > > Thanks for the hints and precious tips! I'll digg deeper into the matter.
> > >
> > > In the meanwhile, I updated some other machines running CURRENT since approx. two
> > > weeks with an older CURRENT to the most recent one - and face similar but not
> > > identical problems!
> > > Updating exiting FreeBSD repositories, like src.git and ports.git, show no problems
> > > except they take longer to accomplish than expected.
> > > Cloning a repo is impossible, after 10 or 15 minutes I receive a timeout.
> > >
> > > On aCURRENT recently updated and worked flawlessly before (CURRENT now: FreeBSD
> > > 15.0-CURRENT #5 main-n274014-b2bde8a6d39: Wed Dec 4 22:22:22 CET 2024 amd64), cloning
> > > attempts for 14.2-RELENG ends up in this mess:
> > >
> > > # git clone --branch releng/14.2 https://git.freebsd.org/src.git 14.2-RELENG/src/
> > > Cloning into '14.2-RELENG/src'...
> > > error: RPC failed; curl 56 Recv failure: Operation timed out
> > > fatal: expected 'packfile'
> > >
> > > This is nasty. The host now in question has an i350 based dual-port NIC - the host's
> > > kernel is very similar to the box I reported the issue first time, both do have
> > > customized kernels (in most cases, I compile several modules like ZFS and
> > > several NETGRAPH modules statically into the kernel - a habit inherited from a small
> > > FBSD project I configured (I wouldn't say developed) which does not allow loadable
> > > kernel modules due to regulations.
> > >
> > > I hoped others would stumble over this tripwire in recent CURRENT sources, since the
> > > phenomena and its distribution over a bunch of CURRENT boxes with different OS states
> > > seemingly show different behviour.
> > >
> > > And for the record: I also build my ports via poudriere and mostly via make. I also
> > > rebuilt in a two day's marathon all packages via "make -f" - for librewolf, curl and
> > > so on to ensure having latest sources/packages.
> > >
> > > (I repeat myself here again, sorry, its for the record).
> > >
> > > Will report in on further development and "investigations"
> > >
> > > Kind regards and thanks,
> > >
> > > oh
> > >
> > >
> >
> > This is a shot into the dark but is this a virtual machine? VirtualBox 7.1.0 had some
> > networking issues that got fixed later.
>
> No, pure Hardware and FreeBSD ...
>
> >
> > Otherwise I would start with ping and traceroute to figure out if they show this issue
> > and where it occurs.
> >
>
>
--
O. Hartmann
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