# \#ofed\_info

**URL:** https://forums.developer.nvidia.com/tag/ofed-info/613.md

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## [Updated CentOS 7.9.2009 kernel using elrepo-kernel. mlnxofedinstall --add-kernel-support failed](https://forums.developer.nvidia.com/t/updated-centos-7-9-2009-kernel-using-elrepo-kernel-mlnxofedinstall-add-kernel-support-failed/205932)

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**Author:** [@alpha754293](https://forums.developer.nvidia.com/u/alpha754293)\
**Replies:** 1\
**Last updated:** [January 3, 2022, 7:42am UTC](https://forums.developer.nvidia.com/t/updated-centos-7-9-2009-kernel-using-elrepo-kernel-mlnxofedinstall-add-kernel-support-failed/205932 "2022-01-03T07:42:40Z")

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I updated CentOS 7.9.2009 kernel using elrepo-kernel. And then when I tried to run mlnxofedinstall --add-kernel-support, it failed. I installed both the mainline kernel and also the mainline-devel kernel from elrepo-ke…

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## [Why mellanox fuses blow and the driver causes PANIC](https://forums.developer.nvidia.com/t/why-mellanox-fuses-blow-and-the-driver-causes-panic/206605)

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**Author:** [@mlicata](https://forums.developer.nvidia.com/u/mlicata)\
**Replies:** 1\
**Last updated:** [December 10, 2019, 5:56pm UTC](https://forums.developer.nvidia.com/t/why-mellanox-fuses-blow-and-the-driver-causes-panic/206605 "2019-12-10T17:56:58Z")

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We have lost a LOT of Mellanox 40Gb NICs, only using Cisco Bi-Di 3.5w optics. When we change to 1.5w MPO SFPs we solve that issue. (at a heavy cost to mgmt) I have to ask WHY Mellanox isnt resolving the PANIC as that ca…

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## [Infiniband/NFSoRDMA causing crash/reboot of server?](https://forums.developer.nvidia.com/t/infiniband-nfsordma-causing-crash-reboot-of-server/207480)

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**Author:** [@scar1](https://forums.developer.nvidia.com/u/scar1)\
**Replies:** 1\
**Last updated:** [May 30, 2017, 7:24pm UTC](https://forums.developer.nvidia.com/t/infiniband-nfsordma-causing-crash-reboot-of-server/207480 "2017-05-30T19:24:25Z")

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Within the last 8 months or so, I recently upgraded our cluster with ConnectX-3 MCX354A-FCBT cards and 36-port SwitchX MSX6025T-1SFS unmanaged switch–all brand new in box. We have been experiencing crashes/reboots of two…

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## [Does MCX-312b (ConnectX-3 Pro) NOT support ibv\_flow\_spec\_ipv4 rule?](https://forums.developer.nvidia.com/t/does-mcx-312b-connectx-3-pro-not-support-ibv-flow-spec-ipv4-rule/207486)

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**Author:** [@jiangdong.sun](https://forums.developer.nvidia.com/u/jiangdong.sun)\
**Replies:** 7\
**Last updated:** [May 19, 2017, 12:49pm UTC](https://forums.developer.nvidia.com/t/does-mcx-312b-connectx-3-pro-not-support-ibv-flow-spec-ipv4-rule/207486 "2017-05-19T12:49:57Z")

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For this NIC, ethtool reports it supports mlx4\_flow\_steering\_ipv4 as below ethtool --show-priv-flags ens2 Private flags for ens2: blueflame : on mlx4\_flow\_steering\_ethernet\_l2: on mlx4\_flow\_steering\_ipv4 : on mlx4\_f…