Could this be caused by DRBD not reading the changes from the Postgresql database quickly enough? Or is it some issue with the interaction between the software

Could this be caused by DRBD not reading the changes from the Postgresql database quickly enough? Or is it some issue with the interaction between the software RAID10, DRBD under high postgresql I/O load? What are the respective versions of the kernel, database and DRBD? Are there disk I/O, network I/O and cpu logs available of the time leading up to the crash?