[Monotone-devel] automate stdio bug / botan problem

[Thomas Keller]

Hi all!

I stumbled across a weird problem today when playing around with invalid 
selectors over automate:

$ mtn db init -d foo.mtn
$ mtn au stdio -d foo.mtn 

l6:select3:i:*e
0:2:l:297:error: hex decoder: invalid hex character: 42
error: this may be due to a memory glitch, data corruption during
error: a network transfer, corruption of your database or workspace,
error: or a bug in monotone.  if the error persists, please contact
error: address@hidden for assistance.l6:select3:i:*e
mtn: fatal: Botan::Invalid_State: Botan: Pipe::start_msg: Message was 
already started
mtn: this is almost certainly a bug in monotone.
mtn: please send this error message, the output of 'mtn version --full',
mtn: and a description of what you were doing to address@hidden
mtn: wrote debugging log to /home/tkeller/private/monotone/_MTN/debug
mtn: if reporting a bug, please include this file


Well the weird thing is here that any next successful command succeeds 
after the first hex decoder error, until some automate command again 
triggers an error:

$ mtn au stdio -d foo.mtn
l6:select3:i:*e
0:2:l:297:error: hex decoder: invalid hex character: 42
error: this may be due to a memory glitch, data corruption during
error: a network transfer, corruption of your database or workspace,
error: or a bug in monotone.  if the error persists, please contact
error: address@hidden for assistance.l6:select2:i:e
1:0:l:0:l6:select3:i:*e
mtn: fatal: Botan::Invalid_State: Botan: Pipe::start_msg: Message was 
already started
mtn: this is almost certainly a bug in monotone.
mtn: please send this error message, the output of 'mtn version --full',
mtn: and a description of what you were doing to address@hidden
mtn: wrote debugging log to /home/tkeller/private/monotone/_MTN/debug
mtn: if reporting a bug, please include this file


As you can see, the second select i: succeeds just fine, but the third 
(invalid) command again crashes automate stdio. Has anybody a clue with 
more botan knowledge than me what is going on here?

Thomas.

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