Kernel panic due to Oracle Clusterware fencing triggered by oracssdagent disconnecting from CSS
Issue
- Kernel panic triggered by the
cssdagent
task via theSysRq
mechanism.
[ 5600.319321] SysRq : Trigger a crash
[ 5600.319346] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 5600.319413] CPU: 20 PID: 27188 Comm: cssdagent Kdump: loaded Tainted: POE ------------ 3.10.0-1160.129.1.el7.x86_64 #1
[ 5600.319413] Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.19.0 12/12/2023
[ 5600.319414] task: ffff95a209151080 ti: ffff95c0bc484000 task.ti: ffff95c0bc484000
[ 5600.319415] RIP: 0010:[<ffffffff990910b6>]
[ 5600.319417] [<ffffffff990910b6>] sysrq_handle_crash+0x16/0x30
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Oracle Grid Infrastructure
- Oracle RAC
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.