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Holger Hans Peter Freyther holger at freyther.deHi all, I was debugging a crash with the VTY and I am not fully understanding it but I can easily reproduce it. The problem is triggered with the new VTY OML code and here is what I know. 1.) we move from ENABLE_NODE to the OML node. and allocate memory 2.) when exiting the node we will free the data at vty->index.. and set the pointer to NULL. But I can easily produce a double free issue and this seems to be due. cmd_execute_command: 1.) saves the vty->index to oindex and vty->node to onode 2.) tries calling vty_go_parent or such... 3.) tries more stuff... 4.) as stuff failed resets vty->index to oindex... so the next exit command will do a double free... and the funny part is that the code has one assumption everything > CONFIG_NODE is considered to be config as well. This means that we should have two enum values in libosmovty, one for Last_Enable, one for Last_Config and have enough space between them. And the other part... maybe vty_go_parent should return CMD_SUCCESS? thoughts? [1] ./script | telnet localhost 4242 and see the bsc_hack/bsc_msc_io crash -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: script URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20100811/7e536bf0/attachment.ksh>