Reboot Hangs Running dbnodeupdate.sh While Upgrading Exadata Db Server
(Doc ID 1620826.1)
Last updated on JUNE 05, 2019
Applies to:
Exadata Database Machine X2-2 Hardware - Version All Versions and laterInformation in this document applies to any platform.
The process being followed is:
1. calling dbnodeupdate - which is kicking off the yum update
2. the yum update process causes the node to reboot
3. reboot not happening due to a bug. This bug could be encountered on any reboot, regardless of whether dbnodeupdate.sh was called.
Symptoms
Running dbnodeupdate.sh is hanging while attempting to upgrade Exadata software on a database node.
The hanging step is likely from the reboot step of the patching process.
It can occur during rebooting / shutting down, an action which may not be affiliated with a patching activity.
The console window returns a stack which often looks like the following:
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
...
Call Trace:
[] rds_ib_remove_one+0xf0/0x110 [rds_rdma]
[] ? autoremove_wake_function+0x0/0x3d
[] ? _cond_resched+0xe/0x22
[] ib_unregister_device+0x36/0x103 [ib_core]
[] mlx4_ib_remove+0x3f/0xfa [mlx4_ib]
[] mlx4_remove_device+0x78/0xa0 [mlx4_core]
[] mlx4_unregister_interface+0x2f/0x99 [mlx4_core]
[] mlx4_ib_cleanup+0x15/0x23 [mlx4_ib]
[] sys_delete_module+0x1c3/0x244
[] ? audit_syscall_entry+0x103/0x12f
[] system_call_fastpath+0x16/0x1b
Changes
Applying a new version of the Exadata software (upgrade)
This can occur even when simply rebooting / shutting down, as a process unrelated to patching activities.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |