Veritas InfoScale 8.0 Update 1 Release Notes - Linux

CFS stress L1 hits assert "Kernel panic - not syncing: GLM assert GLM_SPIN_LOCK:1" [4087258]

In GLM (Group lock manager), while upgrading GLM protocol version from 90 to 135 (latest), the system may panic with the following stack trace:

schedule()

vxg_svar_sleep_unlock()

vxg_create_kthread()

vxg_startthread()

vxg_thread_create()

vxg_leave_local_scopes()

vxg_recv_restart_reply()

vxg_recovery_helper()

vxg_kthread_init()

kthread()

GLM needs to process structures for local scope functionality. GLM creates child threads to do this processing. The child threads are created while holding spin lock, which causes this issue.

Workaround: None