1:             List of known bugs (certainly very incomplete)
    2:             ----------------------------------------------
    3: 
    4: Time-stamp: <2005-09-23 13:25:42 drepper>
    5: 
    6: This following list contains those bugs which I'm aware of.  Please
    7: make sure that bugs you report are not listed here.  If you can fix one
    8: of these bugs/limitations I'll certainly be glad to receive a patch.
    9: 
   10: Another source of information about bugs is the problem data base of the
   11: GNU project.  There is an easy to use WWW interface available at
   12: 
   13:        http://sourceware.org/bugzilla/
   14: 
   15: I would appreciate it very much if you could verify the problem was not
   16: reported before by looking through the database.  To make the information
   17: in this database as useful as possible please report bugs always using the
   18: `glibcbug' shell script which gets installed with GNU libc.  Before reporting
   19: a bug please check the FAQ since it discusses also a lot of problematic
   20: situations.
   21: 
   22: 
   23: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   24: 
   25: Severity: [  *] to [***]
   26: 
   27: [ **]  Closing shared objects in statically linked binaries most of the
   28:        times leads to crashes during the dlopen().  Hard to fix.
   29: 
   30: [ **]  The RPC code is not 64 bit clean.  This is getting slowly fixed
   31:        but expect incompatible changes on 64 bit platforms like Alpha.
   32: 
   33: [  *]  The precision of the `sinhl' and/or `asinhl' function do not seem
   34:        to be the best.
   35: 
   36: [  *]  On Linux, there should be a way to prevent defining the symbol
   37:        NGROUPS_MAX in the <linux/limits.h> header file.  In glibc it
   38:        is defined in <posix1_lim.h> which must not make the other
   39:        symbols in <linux/limits.h> available.
   40:        [PR libc/140]
   41: 
   42: [  *]  The libm-ieee `gamma' function gives wrong results (at least for
   43:        -0.5).
   44: 
   45: [  *]  The libm-ieee `scalb' function gives wrong results for
   46:        non-integral second parameters.
   47: 
   48: [  *]  Several (most?) collation specifications are broken.  The code which
   49:        is currently there is in most cases inherited from the originial
   50:        author (in case there is a LC_COLLATE specification in the locale
   51:        file) or is defined using the default (if iso14651_t1 is included).
   52: 
   53:        In any case we are missing information to correct the specification.
   54:        If you find the specification for your language be faulty please
   55:        send a report with instruction on what to fix.  You don't have to
   56:        fix the specification yourself.
   57: 
   58:        The way it finally should look like (if the generic specification
   59:        is not correct) can be seen in the sv_SE file.  Quite a few changes
   60:        on top of the generic specification can be made without duplication
   61:        of the whole LC_COLLATE description.
   62: 
   63: [  *]  Some of the functions which also handled IPv6 are currently broken.
   64:        IPv6 and IPv4 lookups occasionally happen when not needed.  This
   65:        happens in getaddrinfo() and getnameinfo().  IPv4 handling of
   66:        these functions is OK though and there are patches available to fix
   67:        the IPv6 code as well.
   68: 
   69: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   70: Ulrich Drepper
   71: drepper@redhat.com