# Summary | **Reproducibility** | **Platform** | **OS** | **OS Version** | **Product Version** | | :-------------: |:-------------:|:-----:|:-----:|:--------:| | always | AMD64 | CentOS | 8 | 15.0.2 | # Description Hello Everybody, I noticed that each try to use BPIPE plugin in version Bacula ``15.0`` causes the file daemon segfault and crash. It is caused in a function ``bpipe-fd.c:freePlugin()`` where is a line: ``` bfree_and_null(p_ctx->cmd); ``` To be able use the ``bfree_and_null()`` function, ``p_ctx->cmd`` needs to be assigned with the smart memory allocator way. Otherwise if the ``SMARTALLOC`` is enabled, it causes the segfault. I prepared a patch that fixes it. [fix_bacula_fd_segfault_if_bpipe_plugin_is_used.patch](/uploads/90dd870e29a5cccaebc23415213f4c1d/fix_bacula_fd_segfault_if_bpipe_plugin_is_used.patch) Also I am attaching the traceback file. [bacula.3022.traceback](/uploads/b0db0c718033b2b6f5521f9faaaccc45/bacula.3022.traceback) # Steps to Reproduce 1. Create a Fileset with the BPIPE plugin ``` Fileset { Name = "TAR backup" Include { Plugin = "bpipe:/var/log/httpd.tar:tar -cf - /var/log/httpd 2>/dev/null:tar -C /tmp -xf -" } } ``` 2. Run the job with that Fileset 3. After running a job with this Fileset at the end of the job the File Daemon throws segfault and finish working. ``` dmesg [ 858.645137] bacula-fd[8460]: segfault at 7f873a1e38d0 ip 00007f873b101d8a sp 00007f8732a7ba18 error 4 in libc-2.28.so[7f873b068000+1bc000] [ 858.645144] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 <f3> 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83 ``` 4. The backup job finishes correctly: ``` localhost-dir JobId 292: Start Backup JobId 292, Job=TAR_backup_1.2024-12-03_20.23.16_38 localhost-dir JobId 292: Connected to Storage "File1" at 10.0.0.134:9103 with TLS localhost-dir JobId 292: Using Device "FileChgr1-Dev1" to write. localhost-dir JobId 292: Connected to Client "localhost-fd" at localhost:9102 with TLS localhost-fd JobId 292: Connected to Storage at 10.0.0.134:9103 with TLS localhost-sd JobId 292: Volume "Vol-0011" previously written, moving to end of data. localhost-sd JobId 292: Ready to append to end of Volume "Vol-0011" size=3,213,963,572 localhost-sd JobId 292: Elapsed time=00:00:01, Transfer rate=635.3 K Bytes/second localhost-sd JobId 292: Sending spooled attrs to the Director. Despooling 400 bytes ... localhost-dir JobId 292: Bacula localhost-dir 15.0.2 (21Mar24): Build OS: x86_64-redhat-linux-gnu-bacula redhat Oncilla) JobId: 292 Job: TAR_backup_1.2024-12-03_20.23.16_38 Backup Level: Full Client: "localhost-fd" 15.0.2 (21Mar24) x86_64-redhat-linux-gnu-bacula,redhat,Oncilla) FileSet: "TAR backup" 2024-12-03 20:23:16 Pool: "File" (From Command input) Catalog: "MyCatalog" (From Client resource) Storage: "File1" (From Command input) Scheduled time: 03-gru-2024 20:23:16 Start time: 03-gru-2024 20:23:19 End time: 03-gru-2024 20:23:20 Elapsed time: 1 sec Priority: 10 FD Files Written: 2 SD Files Written: 2 FD Bytes Written: 634,880 (634.8 KB) SD Bytes Written: 635,346 (635.3 KB) Rate: 634.9 KB/s Software Compression: None Comm Line Compression: 90.0% 10.0:1 Snapshot/VSS: no Encryption: no Accurate: no Volume name(s): Vol-0011 Volume Session Id: 3 Volume Session Time: 1733274152 Last Volume Bytes: 3,214,600,010 (3.214 GB) Non-fatal FD errors: 0 SD Errors: 0 FD termination status: OK SD termination status: OK Termination: Backup OK localhost-dir JobId 292: Begin pruning Jobs older than 6 months . localhost-dir JobId 292: No Jobs found to prune. localhost-dir JobId 292: Begin pruning Files. localhost-dir JobId 292: No Files found to prune. localhost-dir JobId 292: End auto prune. ``` Thanks in advance for your help. Best regards, Marcin