Details
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Bug
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Resolution: Fixed
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Critical
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Lustre 2.8.0, Lustre 2.9.0, Lustre 2.10.0
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3
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9223372036854775807
Description
LU-7124 is completely incorrect patch.
It decrease a WR array into kernel, but o2ib lnd stay assume about own queue depth.
It caused situation
Aug 8 21:53:00 lstr1n07 kernel: mlx5_warn:mlx5_0:mlx5_ib_post_send:4184:(pid 26272): Failed to prepare WQE Aug 8 21:53:00 lstr1n07 kernel: mlx5_warn:mlx5_0:begin_wqe:4085:(pid 9590): work queue overflow
after several ENOMEM hits.