Date: Thu, 4 Apr 2024 11:43:22 +0200 From: Michael Tuexen <michael.tuexen@lurchi.franken.de> To: Sad Clouds <cryintothebluesky@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@FreeBSD.org> Subject: Re: TCP socket handling errors Message-ID: <9575FAEA-E297-47B2-9F32-733C8AC2803F@lurchi.franken.de> In-Reply-To: <20240403184638.aaf842926a7665d1f7fc8b14@gmail.com> References: <20240403131434.c3bfa64c726505d842408c80@gmail.com> <20240403144445.9a5662aa66975430c73f9e6d@gmail.com> <0BA9AF99-A50F-472F-8139-1BA9EA067F91@lurchi.franken.de> <20240403184638.aaf842926a7665d1f7fc8b14@gmail.com>
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> On 3. Apr 2024, at 19:46, Sad Clouds <cryintothebluesky@gmail.com> wrote: > > On Wed, 3 Apr 2024 17:28:52 +0200 > Michael Tuexen <michael.tuexen@lurchi.franken.de> wrote: > >>> On 3. Apr 2024, at 15:44, Sad Clouds <cryintothebluesky@gmail.com> wrote: >>> >>> I found a bug that is still open from May 2010 and describes the same >>> behaviour that I see with my application: >>> >>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=146845 >>> >>> If this hasn't been fixed over the last 14 years, then I guess I will >>> add some code to simply ignore ECONNRESET on close(2) for FreeBSD and >>> MacOS. This seems the be the general advice from other people who hit >>> this issue. >> I'll bring this up on the bi-weekly FreeBSD transport call. >> >> Best regards >> Michael >>> >> > > Hello, I've attached a test program, this easily reproduces the issue > on Raspberry Pi 4 within a few seconds of running it. > > Server output: > $ ./econnreset server > Server: accept() > Server: shutdown() > Server: close() > ... > Server: accept() > Server: shutdown() > Server: close() > close() failed, error=Connection reset by peer > > > Client output (aborts when server exists due to close() failure): > $ while true; do ./econnreset client || break; done > Client: connect() > Client: shutdown() > Client: close() > ... > Client: connect() > Assertion failed: (int_val == 0), function client, file econnreset.c, > line 156. Abort trap (core dumped) > <econnreset.c> I can reproduce this locally. Best regards Michael
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