On Sat, 28 Feb 2026 at 15:09, Dr. Tobias Quathamer <[email protected]> wrote: > #1129167 src:syncthing
I haven't found the root cause, but I did find the actual test failure in the log file (hopefully this helps someone dig deeper): === RUN TestConnectionEstablishment/quic 2026/02/26 16:26:17 failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 7168 kiB, got: 416 kiB). See https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes for details. 2026/02/26 16:26:17 INFO: QUIC listener (127.0.0.1:42166) starting panic: crypto/tls bug: where's my session ticket? goroutine 54 [running]: github.com/quic-go/quic-go/internal/handshake.(*cryptoSetup).GetSessionTicket(0x86429e24d80) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/internal/handshake/crypto_setup.go:385 +0x369 github.com/quic-go/quic-go.(*Conn).handleHandshakeComplete(0x86429e65008, 0x34633e58066) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:930 +0x278 github.com/quic-go/quic-go.(*Conn).handleFrames(0x86429e65008, {0x8642a0d33d9?, 0x86429db1808?, 0x86429ff86c0?}, {{0x68, 0x55, 0x84, 0x47, 0x0, 0x0, ...}, ...}, ...) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:1664 +0xd66 github.com/quic-go/quic-go.(*Conn).handleUnpackedLongHeaderPacket(0x86429e65008, 0x86429ff86c0, 0x1, 0x34633e58066, 0x2d9) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:1506 +0x606 github.com/quic-go/quic-go.(*Conn).handleLongHeaderPacket(0x86429e65008, {0x8642a0f0000, {0xcf5ac8, 0x86429ff85d0}, 0x34633e58066, {0x8642a0d33c6, 0x2d9, 0x3e6}, 0x1, {{{0x0, ...}, ...}, ...}}, ...) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:1277 +0x785 github.com/quic-go/quic-go.(*Conn).handleOnePacket(0x86429e65008, {0x8642a0f0000, {0xcf5ac8, 0x86429ff85d0}, 0x34633e58066, {0x8642a0d3200, 0x500, 0x5ac}, 0x1, {{{0x0, ...}, ...}, ...}}) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:1085 +0x636 github.com/quic-go/quic-go.(*Conn).handlePackets(0x86429e65008) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:992 +0x3dd github.com/quic-go/quic-go.(*Conn).run(0x86429e65008) /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/connection.go:640 +0x452 created by github.com/quic-go/quic-go.(*baseServer).handleInitialImpl in goroutine 42 /<<PKGBUILDDIR>>/_build/src/github.com/quic-go/quic-go/server.go:762 +0x107b FAIL github.com/syncthing/syncthing/lib/connections 0.059s Off the cuff, I'd imagine that this bug probably lives inside src:golang-github-lucas-clemente-quic-go, not src:syncthing, but I have not confirmed that. ♥, - Tianon
