Hallo,
* Pirate Praveen [Wed, Apr 08 2020, 03:31:59PM]:
>
>
> On Sun, Apr 5, 2020 at 9:50 pm, Eduard Bloch <e...@gmx.de> wrote:
> > Great. Anyway, after digging in messy code for days, I decided to make a
> > regular release ASAP. Please check version 3.4-1 when it has hit your
> > mirrors. If the problem does not go away then, again, please provide a
> > raw tcp dump.
>
> The problem is still there. Weirdly, a package download failed multiple
> times succeded after I ran the tcpdump command. The tcp dump attached. Will
> try again to capture when it actually fails.
Something is REALLY strange on your systems. Looking at the dump, I see
a flood of TCP retransmissions, for no apparent reason, basically
everything is retransmitted. That might happen sometimes but not in such
massive amount, especially not in a LAN. And the actual header is
reassembled late in the stream.
TCP should be able to untangle this mess, but it's still too weird.
Is there a network switch inbetween? Did you modify global network
settings (via procfs or driver module options)? Or using non-standard
kernels on any side?
You might also try patching and recompilling apt-cacher-ng (version 3.4)
like this. It might mitigate the problem to a certain extent but even if
it does, it cannot fully it.
diff --git a/debian/changelog b/debian/changelog
index 0ec3fa6..b509482 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-apt-cacher-ng (3.4-1) unstable; urgency=low
+apt-cacher-ng (3.4-1.0.1) unstable; urgency=low
* New upstream release
+ potentially closes: #952811
diff --git a/debian/rules b/debian/rules
index 8121788..5a2fd1f 100755
--- a/debian/rules
+++ b/debian/rules
@@ -9,7 +9,7 @@ include /usr/share/dpkg/buildflags.mk
# cmake doesn't respect CPPFLAGS, use the workaround as suggested in
# https://wiki.debian.org/Hardening#Notes_for_packages_using_CMake
CFLAGS += $(CPPFLAGS)
-CXXFLAGS += $(CPPFLAGS)
+CXXFLAGS += $(CPPFLAGS) -DNO_TCP_TUNING
DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
Best regards,
Eduard.
--
<Tolimar> Nanu? Wird postrm remove nicht aufgerufen, wenn man ein Paket gleich
purged?
<weasel> wer weiss das schon so genau
<weasel> ausser vielleicht ian und NMs
