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Build error in 1.19.1 with GCC 16 snapshop 2025-12-14

Bug

Status: Open.

#11061 In openucx/ucx;

· bertwesarg opened on Dec 15, 2025

Broadcom RoCE - destination unreachable

Status: Open.

#11048 In openucx/ucx;

· hahahannes opened on Dec 10, 2025

Does cuda_ipc support GPU cards without NVLink?

Status: Open.

#11046 In openucx/ucx;

· Jeffwan opened on Dec 10, 2025

failed cross compile musl

Bug

Status: Open.

#11044 In openucx/ucx;

· predators46 opened on Dec 8, 2025

UCX ignores Linux policy routing inside netns and always uses <code>main</code> routing table

Bug

Status: Open.

#11035 In openucx/ucx;

· Xunzhuo opened on Dec 3, 2025

Under UCS_THREAD_MODE_SINGLE, pthread_spin_lock experiences severe contention.

Bug

Status: Open.

#11034 In openucx/ucx;

· ivanallen opened on Dec 3, 2025

bug with ngc image

Bug

Status: Open.

#11029 In openucx/ucx;

· wukong1992 opened on Nov 29, 2025

[release] wrong version number in assets for 1.19.1

Bug

Status: Open.

#11027 In openucx/ucx;

· tonycurtis opened on Nov 27, 2025

POSIX latency increases rapidly after 64B even though message size is still &lt; seg_size (bcopy path)

Status: Open.

#11020 In openucx/ucx;

· TroyMitchell911 opened on Nov 20, 2025

Performance regression with UCX 1.19 on a single node with UCX_PROTO_ENABLE=n

Bug

Status: Open.

#11012 In openucx/ucx;

· ohlmann opened on Nov 18, 2025

How does PyTorch ensure thread safety when using UCX TCP transport?

Status: Open.

#11006 In openucx/ucx;

· TroyMitchell911 opened on Nov 13, 2025

Under the RoCE network, qpairs of different processes use the same udp src port

Bug

Status: Open.

#11004 In openucx/ucx;

· ivanallen opened on Nov 12, 2025