2962642 - Log Backup and Full Backup of Backint and Filesystem are failing

Log Backup and Full Backup of Backint and Filesystem are failing, but after a system restart, the log backups and even one full data backup works fine for some times.

INDEXSERVER Trace
[22975]{-1}[-1/-1] 2020-06-06 08:43:39.046715 e Backup BackupExe_LogBackup.cpp(00758) : Report backup failure: Backint fork failed, Resource temporarily unavailable (11)
[22975]{-1}[-1/-1] 2020-06-06 08:44:39.052720 e Logger BackupHandlerImpl.cpp(00457) : Error during log segment backup: exception 1: no.110505 (unknown file:0)
Backint fork failed, Resource temporarily unavailable (11)
exception throw location:
1: 0x00002b8b939a0859 in Backup::BackupDestBackint_ExecutorDaemon::executeImpl(Backup::BackupDestBackint_Job::JobType, unsigned long, unsigned long, Backup::BackupDestBackint_Job::LevelType, char const*, char const*, char const*, char const*, char const*, int&)+0x5d5 at BackupDestBackint_ExecutorDaemon.cpp:82 (libhdbbackup.so)
2: 0x00002b8b9399dea5 in Backup::BackupDestBackint_Executor::execute(Backup::BackupDestBackint_Job&)+0x381 at BackupDestBackint_Executor.cpp:154 (libhdbbackup.so)
3: 0x00002b8b93abc0b3 in Backup::BackupExe_BackintHandlerImpl<Backup::BackupDestBackint_ExecutorDaemon>::startBackintForBackup(ltt::list<ltt::smartptr_handle<Backup::BackupDest_Destination> >&, unsigned long, unsigned long, Backup::BackupDestBackint_Job::LevelType, Backup::BackupDestBackint_Job::BackupType, char const*, char const*, char const*, unsigned long)+0x280 at BackupExe_BackintHandler.hpp:394 (libhdbbackup.so)
4: 0x00002b8b93ab8ba3 in Backup::BackupExe_BackintHandlerImpl<Backup::BackupDestBackint_ExecutorDaemon>::startBackintForBackup(ltt::list<ltt::smartptr_handle<Backup::BackupDest_Destination> >&, unsigned long, unsigned long, Backup::BackupDestBackint_Job::LevelType, Backup::BackupDestBackint_Job::BackupType, char const*, char const*, unsigned long)+0x30 at BackupExe_BackintHandler.hpp:313 (libhdbbackup.so)
5: 0x00002b8b93976970 in Backup::BackupExe_LogBackupImpl::LogBackupThread::collectionBackupStartBackint(Backup::BackupExe_BackintLog&, ltt::list<ltt::smartptr_handle<Backup::BackupDest_Destination> >&, unsigned long)+0xb0 at BackupExe_LogBackup.cpp:319 (libhdbbackup.so)
6: 0x00002b8b93976b61 in Backup::BackupExe_LogBackupImpl::LogBackupThread::executeCollectionBackup(ltt::smart_ptr<Backup::BackupExe_LogBackupInformationCollection>&, Backup::BackupExe_BackintLog&)+0x100 at BackupExe_LogBackup.cpp:513 (libhdbbackup.so)
7: 0x00002b8b939792ac in Backup::BackupExe_LogBackupImpl::LogBackupThread::run(void*&)+0x838 at BackupExe_LogBackup.cpp:711 (libhdbbackup.so)
8: 0x00002b8ba5870087 in Execution::Thread::staticMainImp(void**)+0x743 at Thread.cpp:463 (libhdbbasis.so)
9: 0x00002b8ba5871798 in Execution::Thread::staticMain(void*)+0x34 at ThreadMain.cpp:26 (libhdbbasis.so)

The MiniCheck on the system does not show any OS related issues and also no issue found in the var/log/messages file.

SAP HANA DB 1.0

Operation, System, Linux, Suse, , KBA , HAN-DB-BAC , SAP HANA Backup & Recovery , Problem