On Tue, 2 Sep 2025 20:10:21 +1000, Darren Tucker <[email protected]> wrote:
> On Sat, Jun 07, 2025 at 08:59:38PM -0400, Daniel Jakots wrote: > > tl;dr: when I download base77.tgz, I have > > $ ftp https://whatever/pub/OpenBSD/snapshots/amd64/base77.tgz > > Trying 10.10.10.46... > > Requesting https://whatever/pub/OpenBSD/snapshots/amd64/base77.tgz > > 2% |* | 11648 KB - stalled - > > ftp: Reading from socket: read failed: error:06FFF064:digital > > envelope routines:CRYPTO_internal:bad decrypt > > So the connection stalled? You don't happen to be using jumbo frames > do you? I don't think I've configured anything related to jumbo frames. Can they be used with default settings? How can I check? $ ifconfig em | grep UP | awk '{print $3 " " $4}' mtu 1500 mtu 1500 mtu 1500 Does that mean I'm not using jumbo frames? > If so, it might be this, wherein em(4) would truncate jumbo frames > whose length fell on 2k boundaries: > https://cvsweb.openbsd.org/src/sys/dev/pci/if_em.c?rev=1.379&content-type=text/x-cvsweb-markup > > Such frames would get dropped and retransmitted, but they'd still be > the same size to they'd just get dropped again, and ultimately the TCP > connection would terminate. Standard MTU is 1500, so this can't be > the problem if you're not using jumbos. When I saw the jmatthew's diff on tech@, I reached out to him offlist mentioning my issue. He answered that he didn't think the diff would fix the problem. He advised to check counters with `kstat em0::em-stats:` (but I didn't seen anything), and hacking the driver to check some theories. > > OpenBSD 7.7-current (GENERIC.MP) #703: Sat Jun 7 08:24:55 MDT 2025 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > > > This snapshot is from a week prior to the fix going in, so if this was > your problem it should be fixed now, at least in -current. > iirc, each time I update to a newer snapshot I check if the problem still happens, and I don't remember seeing it fixed. However I'm checking now and I can't reproduce the problem. (I'm running a snapshot from 2025-08-11.) Thanks for checking! Daniel
