Samuel Vannay wrote, on Thu, 16 Dec 2010 21:43:12 +0100:

Hello,

There is a bug in listings when used along with an UTF8 file (see attached file). Here is when it occurs :
The .tex file is encoded in UTF8 (using Kile 2.0.85 in Ubuntu 10.04)
The inputenc option is set to utf8x
The lset contains "extendedchars=true"
The accentuated characters (e.g. "é") used in lstinline rise the error "Package utf8x Error: MalformedUTF-8sequence."
Thoses characters do not cause any problems when used out of the lstinline. Furthermore, if the problem disappear when I save the file in iso-8859-15 encoding (with the latin1 option for inputenc).

I hope it helps.

S. Vannay