Re: Segfault in mlx5 driver on infiniband after application fork

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Subject: Re: Segfault in mlx5 driver on infiniband after application fork
From: Kevan Rehm <kevanrehm@xxxxxxxxx>
Date: Wed, 21 Feb 2024 07:51:31 -0500
Cc: Mark Zhang <markzhang@xxxxxxxxxx>, Leon Romanovsky <leon@xxxxxxxxxx>, "linux-rdma@xxxxxxxxxxxxxxx" <linux-rdma@xxxxxxxxxxxxxxx>, Yishai Hadas <yishaih@xxxxxxxxxx>, Kevan Rehm <kevanrehm@xxxxxxxxx>, "chien.tin.tung@xxxxxxxxx" <chien.tin.tung@xxxxxxxxx>, Kevan Rehm <kevan.rehm@xxxxxxx>

I posted PR #1431 for this.   I tested with IBV_FORK_SAFE and RDMA_FORK_SAFE set and unset.  Also with UCX_IB_FORK_INIT unset, set to no, and set to yes.   All combos work correctly without segfault.

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