bug#5570: automatic cache validation

["Jan D." <jan.h.d@swipnet.se>]

Alan Mackenzie wrote:
> Hi, Jan,
> 
> On Fri, Mar 19, 2010 at 11:45:40PM +0100, Jan Djärv wrote:
> 
> 
>> Alan Mackenzie skrev 2010-03-19 22.56:
>>> Hi, Paul,
> 
>>> On Thu, Mar 18, 2010 at 10:05:11PM +0200, Paul Pogonyshev wrote:
>>>> After March the 1st changes indentation in C++ and related modes is
>>>> better, but it still breaks often enough --- to the tune of once every
>>>> 3--5 minutes or so.  Both when editing C++ and Java code.
> 
>>> How about plain C?  Is the breakage connected with templates/generics, as
>>> far as you can see?
> 
>> FWIW, I see breakage in plain C also.
> 
> That's worth a great deal to know.  It suggests that the changes of
> 2010-02-04 aren't responsble for this bug.
> 
>>> What is the breakage like?  Is it a one-off failure which repairs itself
>>> after a few more edits, or is it more like a creeping death?  Does
>>> reinitializing the mode (M-x c++-mode) repair the indentation?  Does
>>> saving the file and reloading it fix things?
> 
>> I now more or less automatically do M-x revert buffer when this happens.
> 
> When _what_ happens? 

When C-mode thinks everything is topmost-intro.

> I take it, then, that revert-buffer fixes the bad
> state, and you save the file first before reverting it.  Any chance you
> could answer the above questions, together with the further one:
> 
> Does
>     M-x (c-state-cache-init)
> fix it?
>     

No, it does not.

	Jan D.