Exadata/Exalogic DB Node Crashes in Interrupt Mode in Infiniband Driver (mlx4_core/mlx4_ib)
Last updated on NOVEMBER 07, 2017
Applies to:Linux OS - Version Oracle Linux 5.0 to Oracle Linux 5.10 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5 to OL5U10]
Exadata/Exalogic system: database node crashes for unknown reason and not present errors found in the system logs.
Configure Kdump to capture the vmcore which shows that the server is crashed in the interrupt mode in mlx4 driver.
For example, below call trace can be found in the vmcore by executing 'bt' command.
No changes were made to the system prior to the reboot.
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