Alan Mackenzie <acm@muc.de> writes:

> there was a rather crass bug in last week's patch.  Sorry.  It's fixed
> now, below.  M-x c-toggle-parse-state-debug has been enhanced to display
> messages when the state-cache is intrinsically invalid.  It also now
> gives a message when you {en,dis}able it.  Would you try out this patch
> now, please.

Sorry it has taken me so long to respond.  I was working in non-C-based
languages for a while.  today I started working in C again, and ran into
issues like this:

Error during redisplay: (jit-lock-function 3411) signaled (wrong-type-argument number-or-marker-p nil)
c-parse-state inconsistency at 3599: using cache: nil, from scratch: ((3409 . 3599))
Old state:
(setq c-state-cache '((3409 . 3599))  c-state-cache-good-pos 3599  c-state-nonlit-pos-cache '(6307 3307)  c-state-nonlit-pos-cache-limit 3592  c-state-semi-nonlit-pos-cache '(3307)  c-state-semi-nonlit-pos-cache-limit 3592  c-state-brace-pair-desert '(nil . 3396)  c-state-point-min 1  c-state-point-min-lit-type nil  c-state-point-min-lit-start nil  c-state-min-scan-pos 1  c-state-old-cpp-beg nil  c-state-old-cpp-end nil  c-parse-state-point 3600)

I have finally managed to come up with a recipe for this one.  I am
using "110803 rgm@gnu.org-20121105111732-ilq2sbfo09xg9i9z" with your
patches.

emacs -Q rwfileinfo.c
M-x c-toggle-parse-state-debug
C-x 4 b *Messages* RET
C-s enum RET
C-M-f C-p C-e ,

Error occurs after the comma (should be on line 197).