Neil Bird wrote:
> Around about 19/04/06 12:07, Bram Moolenaar typed ...
> > Apparently your FileChangedRO autocommand does something nasty. I
> > suspect we need to detect that nastyness and disallow it. Any idea what
> > the nasty bit could be?
>
> I tried making a cut down fake version, but that always worked. It's
> essentially doing a couple of system() [vim] calls, one's a 'cat' of a config
> file, the next is the actual remote sourcesafe checkout command (via rsh), of
> each of which it parses the output.
>
> Then it does a :edit to reload the buffer and a 'syntax on'. ISTRT if I
> comment out the :syntax on' it stops crashing, but I then get a file with no
> syntax highlighting (even though it was on before). Maybe that in itself is
> the issue.
Main issue is: Do you open another buffer or window?
I guess the basic sequence is:
- you do "z=" and select a suggestion, this is to be inserted
- your file is RO, thus the FileChangedRO autocmd is triggered
- your FileChangedRO autocmd uses sourcesafe to get the file
Hmm, does this then trigger the timestamp check and
trigger a FileChangedShell autocmd?
- your FileChangedRO autocmd reloads the file
> > After some pointers go wrong anything can happen, thus how it crashes
> > exactly is not interesting. It could help to use a library that forbids
> > access to freed memory, like efence. Then the error is detected much
> > earlier and a stack trace may provide more useful info.
>
> ef is not reporting anything [except its banner], although it does make it
> not crash fatally [locked after crash], albeit with the corrupted text as a
> spell replacement. Any other recommended tools?
Efence should make your application crash as soon as it accesses memory
that it shouldn't access.
--
hundred-and-one symptoms of being an internet addict:
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