release: 1.0.17

[lilypond.git] / BUGS

diff --git a/BUGS b/BUGS
index 40be3fcf2895f97369cf4522f400cb4e46261e4f..054d425246941e3b94db75c303ab66b7b7458f03 100644 (file)
--- a/BUGS
+++ b/BUGS
@@ -1,7 +1,45 @@
-Document Really Ugly Bugs (coredumps, assert fails, etc)
 
+This documents serious bugs 
 
-[Linux Intel]
+********
+
+[Linux Intel, EGCS-1.1b]
+
+Compiling with -O2 -finline-functions will cause crashes during
+parsing stage.
+
+
+[All platforms] 
+
+When dealing with beaming that is not correct (eg quarter notes in
+beams.), you can get the following assert.  This is a serious bug, but
+a good solution is quite a lot of work.
+
+       \score{
+               \melodic{
+                       [c2 c]
+               }
+       }
+
+results in
+
+       lilypond: ../flower/include/varray.hh:141: struct Rhythmic_grouping *& Array<Rhythmic_grouping *>::elem(int) const: Assertion `i >=0&&i<size_' failed.
+
+And this
+
+       \score{
+               \melodic{
+                       [c]
+               }
+       }
+
+in
+
+       lilypond: ../flower/include/cursor.tcc:104: int Cursor<void *>::operator -(class Cursor<void *>) const: Assertion `c.ok()' failed.
+       Aborted (core dumped)
+
+
+[Linux libg++ 2.7]
 
 LilyPond occasionally crashes while parsing the initialisation files.
 This is a very obscure bug, and usually entering the commandline
@@ -24,10 +62,22 @@ Typical stacktrace:
        Includable_lexer::new_input (this=0x8209a00, s={strh_ = {
                :
 
+This behaviour has been observed with machines that have old libg++
+versions (LinuxPPC feb '98, RedHat 4.x).  
+
+
+
+[Linux Intel]
 
-I get bitten by this every once in a while, and I am very interested
-in hints what might be wrong.  This problem has only been identified
-with libc-5.3 and libc-5.4 platforms, so you might try upgrading to
-6.0, ie. GNU libc-2.
+A problem resembling the previous: usage of libg++.2.8.x with the
+wrong version of libc results in a coredump from the scanner while
+reading the init files.  Stacktrace:
 
+       ios::eof (this=0x0)
+       
+       yyFlexLexer::LexerInput (this=0x8294848, buf=0x82955f0 "", max_size=8192)
+       yyFlexLexer::yy_get_next_buffer (this=0x8294848)
+       My_lily_lexer::yylex (this=0x8294848) 
 
+Fix: follow the install instructions of libg++: match the right
+library versions.