Kernel panic with Hard LOCKUP on __write_lock_failed when using CA ControlMinder software
Issue
- The server is unexpectedly rebooted with a kernel panic due to a process reporting a Hard LOCKUP
PANIC: "Kernel panic - not syncing: Hard LOCKUP"
- The offending process can be any running process
- The panic trace shows __write_lock_failed as the exception RIP:
crash> bt
PID: 8338 TASK: ffff88205fae2ab0 CPU: 19 COMMAND: "multipathd"
[...]
[exception RIP: __write_lock_failed+9]
[...]
- This trace is similar to a previously reported BZ 1229196 on older kernel versions, however the suggested errata RHSA-2016-0855 was already applied
- Issue is not reproduced when the [seos] module is not loaded
Environment
- Red Hat Enterprise Linux 6
- CA ControlMinder software, also known as eTrust, and represented by a external module called [seos]
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