[Ocfs2-tools-devel] debufs.ocfs2: issue cat command against some of the system files cause core dump

[Tao Ma]

Hi Jeff,
	thanks for the info. but I think maybe we need to eliminate all the
scenario. At least dump also have the same bug.

debugfs: dump //global_bitmap /tmp/1
debugfs.ocfs2: extend_file.c:211: ocfs2_new_path: Assertion
`root_el->l_tree_depth < 5' failed.

rdump should have the same problem.

So maybe you need to add the check in dump_file to prevent all these.

Regards,
Tao

jeff.liu wrote:
> Hello,
> 
> issue command 'cat' against some of the OCFS2 system files in
> debugfs.ocfs2 cause core dump.
> for example:
> -----------
> debugfs.ocfs: cat //global_bitmap
> debugfs.ocfs2: extend_file.c:211: ocfs2_new_path: Assertion
> `root_el->l_tree_depth < 5' failed.
> Aborted (core dumped)
> 
> looks the command get some unexpected data just cause the assertion
> failed. :(
> 
> I am wonder whether the system files could be cat or not, the patch
> checking if the target to cat is a system file, if yes, just return and
> show user
> the related message.
> 
> 
> Thanks,
> Jeff
> 
> 
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