Add a comment about an assumption we make in our keepalive buffering.

[apache] / STATUS

APACHE 2.0 STATUS:                                              -*-text-*-
Last modified at [$Date: 2001/04/27 21:10:39 $]

Release:

    2.0.17  : rolled April 17, 2001
    2.0.16  : rolled April 4, 2001
    2.0.15  : rolled March 21, 2001
    2.0.14  : rolled March 7, 2001
    2.0a9   : released December 12, 2000
    2.0a8   : released November 20, 2000
    2.0a7   : released October 8, 2000
    2.0a6   : released August 18, 2000
    2.0a5   : released August 4, 2000
    2.0a4   : released June 7, 2000
    2.0a3   : released April 28, 2000
    2.0a2   : released March 31, 2000
    2.0a1   : released March 10, 2000

DAEDALUS 2.0 PROBLEMS:

    * mod_cgid and suexec have a problem co-existing.  suexec sees a null
      command string sometimes.

    * core dump from 20010422

      /usr/local/apache2b/corefiles/httpd.core.3
      #0  0x806724c in check_hostalias (r=0x81fd03c) at vhost.c:891
      #1  0x8067489 in ap_update_vhost_from_headers (r=0x81fd03c) at vhost.c:978
      #2  0x806fa92 in ap_read_request (conn=0x81450fc) at protocol.c:946
      #3  0x805a168 in ap_process_http_connection (c=0x81450fc) at http_core.c:274
      #4  0x806bc60 in ap_run_process_connection (c=0x81450fc) at connection.c:82
      #5  0x806be84 in ap_process_connection (c=0x81450fc) at connection.c:216
      #6  0x805fbba in child_main (child_num_arg=65) at prefork.c:807
      #7  0x805fd20 in make_child (s=0x80c64fc, slot=65) at prefork.c:880
      #8  0x805ffec in perform_idle_server_maintenance () at prefork.c:1021
      #9  0x80603d1 in ap_mpm_run (_pconf=0x80c600c, plog=0x80f300c, s=0x80c64fc) at prefork.c:1191
      #10 0x80660cd in main (argc=1, argv=0xbfbffdac) at main.c:425
      #11 0x8059bf9 in _start () 

      The input data (received in one read from TCP layer):

      GET /images/apache_sub.gif HTTP/1.1
      Accept: */*
      Referer: http://search.apache.org/index.cgi
      Accept-Language: en-us
      Accept-Encoding: gzip, deflate
      If-Modified-Since: Sat, 02 Dec 1995 21:26:28 GMT
      If-None-Match: "29e60e-17c3-66972900"
      User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98; Win 9x 4.90)
      Host: www.apache.org
      Connection: Keep-Alive

    * core dump from 20010418

      /usr/local/apache2b/corefiles/httpd.core.2
      #0  0x2813a3c8 in kill () from /usr/lib/libc.so.4
      #1  0x2817609e in abort () from /usr/lib/libc.so.4
      #2  0x8065299 in ap_log_assert (szExp=0x80aaa60 "total_bytes_left > 0 && tmplen > 0", szFile=0x80aa2aa "core.c", nLine=2555)
          at log.c:562
      #3  0x8075227 in sendfile_it_all (c=0x81470fc, fd=0x814759c, hdtr=0xbfbff670, file_offset=1929216, file_bytes_left=261949, 
          total_bytes_left=261949, flags=0) at core.c:2555
      #4  0x80761e2 in core_output_filter (f=0x814737c, b=0x814764c) at core.c:3172
      #5  0x806d227 in ap_pass_brigade (next=0x814737c, bb=0x81e80fc) at util_filter.c:240
      #6  0x805e696 in check_pipeline_flush (r=0x820803c) at http_request.c:388
      #7  0x805e707 in ap_process_request (r=0x820803c) at http_request.c:432
      #8  0x805a1a9 in ap_process_http_connection (c=0x81470fc) at http_core.c:280
      #9  0x806bc60 in ap_run_process_connection (c=0x81470fc) at connection.c:82
      #10 0x806be84 in ap_process_connection (c=0x81470fc) at connection.c:216
      #11 0x805fbba in child_main (child_num_arg=272) at prefork.c:807
      #12 0x805fd20 in make_child (s=0x80c64fc, slot=272) at prefork.c:880
      #13 0x805ffec in perform_idle_server_maintenance () at prefork.c:1021
      #14 0x80603d1 in ap_mpm_run (_pconf=0x80c600c, plog=0x80f300c, s=0x80c64fc) at prefork.c:1191
      #15 0x80660cd in main (argc=1, argv=0xbfbffadc) at main.c:425
      #16 0x8059bf9 in _start ()

      The input data (received in one read from TCP layer):

      GET /log4j/jakarta-log4j-1.1b2.zip HTTP/1.0
      Via: 1.0 MDRPRXY01, 1.0 NS2
      Connection: Keep-Alive
      User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)
      Host: jakarta.apache.org
      Accept: application/vnd.ms-excel, application/msword, application/vnd.ms-powerpoint, image/gif, image/x-xbitmap, image/jpeg,
      image/pjpeg, */*
      Accept-Language: en-us,tscii;q=0.5
      Referer: http://jakarta.apache.org/log4j/docs/download.html
      Accept-Encoding: gzip, deflate

RELEASE SHOWSTOPPERS:

    WARNING: ALWAYS check srclib/apr/STATUS and srclib/apr-util/STATUS

    * threaded + cgid: "apachectl graceful" followed by "apachectl
      restart" results in all processes but cgid going away; parent
      died referencing other-child registration structures

    * There is a bug in how we sort some hooks, at least the pre-config
      hook.  The first time we call the hooks, they are in the correct 
      order, but the second time, we don't sort them correctly.  Currently,
      the modules/http/config.m4 file has been renamed to 
      modules/http/config2.m4 to work around this problem, it should moved
      back when this is fixed.    rbb

    * Root all file systems with <Directory /> for WIN32/OS2/NW permissions 
        Status: patch brought forward from 1.3.14
                WIN32 and OS2 need review [William Rowe, Brian Harvard]

    * Win32: Get Apache working on Windows 95/98. The following work
        (at least) needs to be done:
        - winnt MPM: Fix 95/98 code paths in the winnt MPM. There is some NT
        specific code that is still not in NT only code paths
        - IOL binds to APR sendfile, implemented with TransmitFile, which 
        is not available on 95/98.
        - Document warning that OSR2 is required (for Crypt functions, in
        rand.c, at least.)

    * Win32: Test access logging with multiple threads. Will the 
        native file I/O calls serialize automagically like the 
        CRT calls or do we need to add region locking each time 
        we access the logs?
        Status: 

    * Win32: Complete the revamp the service environment and relocation
        into the WinNT MPM.  Changes ServerRoot service registry 
        parameter into ConfigArgs for multiple service startup parameters.
        Problems to fix in the revamp: -k shutdown/restart are broken, 
        signals are not being acknowledged.  Close window and shutdown 
        also seem out of sorts.
        OtherBill is working on this and will finish over the weekend.

    * We need a thread-safe resolver, at least on Unix.
        Status: The best known candidate would be something from
        BIND v9.
        Status: Greg asks, "why? doesn't gethostbyname_r() handle this?"

    * The AddInputFilter and AddOutputFilter directives do not allow the
      administrator to remove or reorder filters.  Once a filter is added
      in a container, it is present in any subcontainers.  It can only be
      added to the filter chain after any filters specified in enclosing
      containers.

    * remove the --disable-shared from the subdir config of APR(UTIL)
      before the final release. (in fact, it might even be nice to
      allow for Apache config/build against an already-installed
      APR(UTIL))
      Note: we need to do a "make install" for APR(UTIL) so the shared
            libraries can be installed properly. We could also use that
            point to install include files (rather than have Apache
            know everything that needs to be installed from the
            sub-packages). The original impetus for doing the
            disable-shared was because the shared lib wasn't getting
            installed and a "make clean" in aprutil would make Apache
            fail to load.

    * users who want to install third-party modules into the Apache
      source tree (for static linking) need to have autoconf and
      libtool installed. This is because the module needs to have its
      config.m4 incorporated into ./configure, which means "buildconf"
      must be run.
      Note: This is in part because we have removed the "extra" directory.
            In the Apache-2.0 repository, this directory had a config.m4
            file that allowed people to add external modules by
            specifying --with-module on the configure line.

    * ap_vrprintf() needs to handle more than 4K
        Status: Greg volunteers

    * mod_dir should normally redirect ALL directory requests which do
      not include a trailing slash on the URI. However, if a "notes"
      flag is set (say, via BrowserMatch), this behavior will be
      disabled for non-GET requests.
        Status: Greg volunteers
        MsgId: <20010227104646.E2297@lyra.org>
        MsgId: <3A9C0097.9C83F07C@Golux.Com>

    * Usability: Sanitize the MPM config directives.  MaxClients in 
      the threaded MPM is totally misleading now as it has little to
      do with limiting the number of clients (it limits the number
      of child processes). Bill proposed nomenclature change to
      something like "StartWorkers, MaxWorkers, etc." that could 
      apply to most all the MPMs (with some notable exceptions).
      Bill would be happy with changing MaxClients to MaxServers
      to make it agree with the operation of the StartServers
      directive.

    * A design problem with the scoreboard can cause the threaded 
      MPM to get in a state where it will no longer serve requests.
      When MaxRequestsPerChild is hit, a threaded process will begin
      allowing it's idle worker threads to exit. The child process
      may have one (or a few) threads serving really long responses
      over slow client connections, which will prevent the child
      process from exiting. The problem is that the
      perform_idle_server_maintenance code will NOT start a new
      process to replace the dying child process until the dying child 
      has exited because the new child needs to use the old childs
      space in the scoreboard. The scoreboard and
      perform_idle_server_maintenance need to be redesigned.
      Status: Several proposals discussed on new-httpd (April 16, 2001)
      

RELEASE NON-SHOWSTOPPERS BUT WOULD BE REAL NICE TO WRAP THESE UP:

    * Performance: Get SINGLE_LISTENER_UNSERIALIZED_ACCEPT
      optimization working again. Bill would like to see this
      working for the threaded MPM, then prefork.

    * mod_tls is very specific to OpenSSL. Make the API calls
      more generic to support other encryption libraries.

    * Performance & Debug: Eliminate most (and perhaps all) of the 
      malloc/calloc/frees in the bucket brigade code.  Need some 
      light weight memory management functions that allow freeing 
      memory (putting it back into a memory pool) when it is no 
      longer needed. Enabling simple debugging features like guard
      bands, double free detection, etc. would be cool but certainly
      not a hard requirement.

    * Eliminate unnecessary creation of pipes in mod_cgid

    * the autoconf setup should be fixed to default to using the 
      "Apache" layout from config.layout, and each variable settable
      in a layout should be overridable on the command line.  Plus,
      what we do right now just doesn't seem to fully fit into how autoconf
      works, eg. AC_PREFIX_DEFAULT issues.
        Message-ID: <Pine.BSF.4.20.0104031557420.20876-100000@alive.znep.com>

    * mod_status ExtendedStatus SS (seconds since last request) is
      bogus because of an uninitialized field in the scoreboard.
        Status: Cliff is working on this

    * All of our MPMs should use APR for threads/processes.  This 
      will allow us to error out if a threaded MPM is chosen on a
      platform that doesn't support threads.

    * Combine log_child and piped_log_spawn. Clean up http_log.c.
      Common logging API.

    * Document mod_file_cache.

    * OS/2: Make mod_status work for spmt_os2 MPM.

    * Win32: Win9x console window still won't play nice with the
        close window, logoff and shutdown scenarios.
        Status: OtherBill will move the patch forward from 1.3.15, once we 
        get our other Win9x issues solved.

    * Win32: Add a simple hold console open patch (wait for close or
        the ESC key, with a nice message) if the server died a bad 
        death (non-zero exit code) in console mode.
        Status: OtherBill is bringing forward same ugly hack from 1.3.13

    * Platforms that do not support fork (primarily Win32 and AS/400)
      Architect start-up code that avoids initializing all the modules 
      in the parent process on platforms that do not support fork.

    * Win32: Migrate the MPM over to use APR thread/process calls. This
      would eliminate some code in the Win32 branch that essentially
      duplicates what is in APR.

    * There are still a number of places in the code where we are
      losing error status (i.e. throwing away the error returned by a
      system call and replacing it with a generic error code)

    * Win32: Implement reliable piped logs on Windows

    * Mass vhosting version of suEXEC.

    * All DBMs suffer from confusion in support/dbmmanage (perl script) since 
        the dbmmanage employs the first-matched dbm format.  This is not
        necessarily the library that Apache was built with.  Aught to
        rewrite dbmmanage upon installation to bin/ with the proper library 
        for predictable mod_auth_db/dbm administration.

    * use apu_dbm in mod_auth_dbm
        Status: Greg +1 (low-priority volunteer)

    * Integrate mod_dav.
        Some additional items remaining:
        - case_preserved_filename stuff
            (use the new canonical name stuff?)
        - find a new home for ap_text(_header)
        - is it possible to remove the DAV: namespace stuff from util_xml?

    * ap_core_translate() and its use by mod_mmap_static and mod_file_cache
      are a bit wonky.  The function should probably be exposed as a utility 
      function (such as ap_translate_url2fs() or ap_validate_fs_url() or 
      something).  Another approach would be a new hook phase after
      "translate" which would allow the module to munge what the
      translation has decided to do.
        Status: Greg +1 (volunteers), Ryan +1

    * Explore use of a post-config hook for the code in http_main.c which
      calls ap_fixup_virutal_hosts(), ap_fini_vhost_config(), and
      ap_sort_hooks()  [to reduce the logic in main()]

    * read the config tree just once, and process N times (as necessary)

    * (possibly) use UUIDs in mod_unique_id and/or mod_usertrack

    * (possibly) port the bug fix for PR 6942 (segv when LoadModule is put
      into a VirtualHost container) to 2.0.

    * the LTFLAGS = -export-dynamic in the config.m4 is wrong. it is getting
      added multiple times during the config process. The -export-dynamic
      should probably move into build/special.mk (the make file used for
      building Apache modules).

    * shift stuff to mod_core.h

    * APR-ize resolver stuff in mod_unique_id (Jeff volunteers)

    * callers of ap_run_create_request() should check the return value
      for failure (Doug volunteers)

PRs that have been suspended forever waiting for someone to
put them into 'the next release':

    * PR#76: general
      missing call to "setlocale();"
        Status: 

    * PR#78: mod_include
      Additional status for XBitHack directive
        Status: 

    * PR#161: mod_dir
      Questionable performace of mod_dir() with negotiation
        Status: 

    * PR#362: mod_proxy
      Mod_proxy doesn't allow change of error pages
        Status: 

    * PR#370: mod_env
      Modified PATH environemnt variable is not passed, instead
      system's is used
        Status: 

    * PR#440: mod_proxy
      Proxy doesn't deliver documents if not connected
        Status: 

    * PR#534: mod_proxy
      proxy converts ~name to %7Ename when name starts with a dot (.)
        Status: 

    * PR#537: mod_access
      mod_access syntax allows hosts that should be restricted
        Status: 

    * PR#557: mod_auth-any
      ~UserHome directories are not honored in absolute pathname
      requests (.htaccess)
        Status: 

    * PR#573: mod_log-any
      More LogFormat directives
        Status: 

    * PR#612: mod_proxy
      Proxy FTP Authentication Fails
        Status: 

    * PR#623: mod_include
      A smarter "Last Modified" value for SSI documents (see PR number 600)
        Status: 

    * PR#628: config
      Request of "Options SymLinksIfGroupMatch"
        Status: 

    * PR#697: mod_include
      A security tweak I've been using for a few years for SSI
        Status: 

    * PR#700: mod_proxy
      Proxy doesn't do links right for OpenVMS files through ftp:
        Status: 

    * PR#759: mod_imap
      imap should read <MAP><AREA>*</MAP> too!
        Status: 

    * PR#793: general
      RLimitCPU and RLimitMEM don't apply to all children like they should
        Status: 

    * PR#921: suexec
      Uses cwd before filling it in, doesn't use syslog
        Status: 

    * PR#922: config
      it is useful to allow specifiction that root-owned symlinks
      should always be followed
        Status: 

    * PR#980: mod_proxy
      Controlling Access to Remote Proxies would be nice...
        Status: 

    * PR#994: mod_proxy
      Adding authentication "on the fly" through the proxy module
        Status: 

    * PR#1004: apache-api
      request_config field in request_rec is moderately bogus
        Status: 

    * PR#1028: other
      DoS attacks involving memory consumption
        Status: 

    * PR#1050: mod_log-any
      Logging of virtual server to error_log as well
        Status: 

    * PR#1085: mod_proxy
      ProxyRemote make a dead cycle.
        Status: 

    * PR#1117: mod_auth-any
      Using NIS passwd.byname dbm files with AuthDBMUserFile
        Status: 

    * PR#1120: suexec
      suexec does not parse arguments to #exec cmd
        Status: 

    * PR#1145: mod_include
      Allow for Last-Modified: without resorting to XBitHack
        Status: 

    * PR#1156: config
      insufficent AllowOverrides granularity for autoindexing
        Status: 

    * PR#1158: apache-api
      improvements to child spawning API
        Status: 

    * PR#1166: mod_proxy
      ``nph-'' not honored (no buffering) for ProxyRemote mapping
        Status: 

    * PR#1176: mod_cgi
      Apache cannot handle continuation line in headers
        Status: 

    * PR#1191: general
      setlogin() is not called, causing problems with e.g. identd
        Status: 

    * PR#1204: general
      regerror() exists, use it
        Status: 

    * PR#1233: apache-api
      there is no way to keep per-connection per-module state
        Status: 

    * PR#1263: mod_dir
      Add frame-safe anchor attribute to mod_autoindex links
        Status: 

    * PR#1268: suexec
      CGI scripts running as Apache user: security (suexec etc.)
        Status: 

    * PR#1285: suexec
      Error messages could be easier to spot in cgi.log file for suexec.c
        Status: 

    * PR#1287: mod_access
      add allow,deny/deny,allow warning to mod_access
        Status: 

    * PR#1290: mod_proxy
      Need to know "hit-rate" on proxy cache
        Status: 

    * PR#1358: mod_log-any
      Selective url-encode of log fields (or maybe a pseudo
      log_rewrite module?)
        Status: 

    * PR#1383: mod_headers
      I make mod_headers to modify request headers as well as
      response ones.
        Status: 

    * PR#1532: mod_proxy
      Proxy transfer logging
        Status: 

    * PR#1547: mod_proxy
      No HTTP_X_FORWARDED_FOR set...
        Status: 

    * PR#1567: mod_proxy
      ProxyRemote proxy requests fail authentication by firewall
        Status: 

    * PR#1574: mod_autoindex
      ReadmeName and HeaderName don't allow for server-parsed html.
        Status: 

    * PR#1582: mod_rewrite
      mod_rewrite forms REQUEST_URI different than mod_cgi does
        Status: 

    * PR#1677: mod_headers
      mod_headers should allow mod_log_config-style formats in
      header values
        Status: 

    * PR#1702: mod_proxy
      mod_proxy to support persistent conns?
        Status: 

    * PR#1803: mod_include
      patches to mod_include to allow for file tests
        Status: 

    * PR#1809: mod_auth-any
      Suggestion for improving authentication modules and core source
      code, problem with 401 and ErrorDocument
        Status: 

    * PR#1855: mod_autoindex
      More Control over autoindex layout
        Status: 

    * PR#1878: mod_proxy
      listing of proxy cache content
        Status: 

    * PR#1905: suexec
      Allow modules to set user:group for execution.
        Status: 

    * PR#2024: apache-api
      adding auth_why to conn_rec
        Status: 

    * PR#2073: mod_log-any
      pipelined connections are not logged correctly
        Status: 

    * PR#2074: mod_rewrite
      mod_rewrite doesn't pass Proxy Throughput on internal subrequests
        Status: 

    * PR#2113: config
      HTTP Server Rebuild Line Needs Changing for the better
        Status: 

    * PR#2138: mod_status
      mod_status always displays 256 possible connection slots
        Status: 

    * PR#2221: documentation
      Make online documentation search link back to my installation
        Status: 

    * PR#2284: general
      Can not POST to ErrorDocument - Apache/1.3b6
        Status: 

    * PR#2314: mod_proxy
      patterns in ProxyRemote
        Status: 

    * PR#2343: mod_status
      Status module averages are for entire uptime
        Status: 

    * PR#2360: suexec
      suexec for general access of user content?
        Status: 

    * PR#2396: general
      Proposal for TimeZone directive
        Status: 

    * PR#2415: mod_info
      /server-info doesn't check for the virtual host to list the info
        Status: 

    * PR#2421: config
      problem specifying ndbm library for build ?with autoconfigure
        Status: 

    * PR#2431: general
      A small addition to rotatelogs.c to improve program functionality.
        Status: 

    * PR#2446: config
      AllowOverride FileInfo is too coarse
        Status: 

    * PR#2460: mod_cgi
      TimeOut applies to output of CGI scripts
        Status: 

    * PR#2512: mod_access
      &lt;IfDenied&gt; directive wanted
        Status: 

    * PR#2573: suexec
      CGI's for general use still have to be run as another user
      with suExec
        Status: 

    * PR#2648: general
      Cache file names in Proxy module
        Status: 

    * PR#2760: config
      [PATCH] User/Group for <Directory> and <Location> i.e. not only
      in global and <Virtual>.
        Status: 

    * PR#2763: general
      mailto tags and bundling bug report script
        Status: 

    * PR#2772: mod_log-any
      more % escapes
        Status: 

    * PR#2785: os-aix
      Support for System Resource Controller
        Status: 

    * PR#2793: protocol
      When will Apache support P3P? Any Plans?
        Status: 

    * PR#2873: config
      Feedback/Comment on APACI
        Status: 

    * PR#2889: general
      Inclusion of RPM spec file in CVS/distributions
        Status: 

    * PR#2906: general
      Propose that Apache recommend $UNIQUE_ID for all "session id"
      algorithms
        Status: 

    * PR#2907: config
      suggestion: power up your Include directive :)
        Status: 

    * PR#3018: general
      cannot limit some HTTP methods
        Status: 

    * PR#3026: mod_autoindex
      No way to change ReadmeName/HeaderName suffixes.
        Status: 

    * PR#3143: apache-api
      No module specific data hook for per-connection data
        Status: 

    * PR#3181: config
      Configuration file in Japanese
        Status: 

    * PR#3191: mod_negotiation
      no way to set global quality-of-source (qs) coneg values
      with multiviews
        Status: 

    * PR#3430: mod_negotiation
      Enhancement: MultiViews, Multi-Language Documents
        Status: 

    * PR#3568: mod_proxy
      Accessing URL through proxy server corrupts data.
        Status: 

    * PR#3594: os-windows
      Please add an Apache icon to the systray instead of a DOS window
        Status: 

    * PR#3605: mod_proxy
      Some anonymous FTP URLs ask for authentication
        Status: 

    * PR#3654: mod_autoindex
      BORDER=0 makes Icons look nicer (FancyIndexing)
        Status: 

    * PR#3677: general
      New ErrorDocumentMatch directive
        Status: 

    * PR#4180: os-windows
      Alternative for win95 users
        Status: 

    * PR#4241: config
      Need to be able to override shebang line to make CGI scripts
      more portable.
        Status: 

    * PR#4244: config
      "Files" and "FilesMatch" regexp does not recognize bang as
      negation operator
        Status: 

    * PR#4448: mod_log-any
      Please allow CGI env variables (QUERY_STRING, ...) to be logged
      with %{}e
        Status: 

    * PR#4459: mod_include
      Suggestion for better handling of Last-modified headers
        Status: 

    * PR#4490: mod_cgi
      mod_cgi prevents handling of OPTIONS requests
        Status: 

    * PR#4520: mod_autoindex
      mod_autoindex does not generate Last-Modified response headers
        Status: 

    * PR#4658: os-windows
      The output of CGI scripts appears in the window that apache
      is running in
        Status: 

    * PR#5713: os-windows
      [PATCH] install as service with domain account
        Status: 

    * PR#5993: general
      AllowOverride should have a 'CheckNone' and 'AllowNone' argument
      instead of only 'None'
        Status: 

    * PR#6347: mod_mime
      MIME types for MNG and JNG files need adding to mime.types and
      the mime.types and magic files
        Status: Waiting for IANA types to be defined

Other bugs that need fixing:

    * MaxRequestsPerChild measures connections, not requests.
        Until someone has a better way, we'll probably just rename it
        "MaxConnectionsPerChild".
    
    * Regex containers don't work in an intutive way
        Status: No one has come up with an efficient way to fix this
        behavior. Dean has suggested getting rid of regex containers
        completely.

    * SIGSEGV on Linux (glibc 2.1.2) isn't caught properly by a
      sigwaiting thread. We need to work around this, perhaps unless
      there is hope soon for a fixed glibc.

    * orig_ct in the byterange/multipart handling may not be
      needed. Apache 1.3 just never stashed "multipart" into
      r->content_type. We should probably follow suit since the
      byterange stuff doesn't want the rest of the code to see the
      multipart content-type; the other code should still think it is
      dealing with the <orig_ct> stuff.
        Status: Greg volunteers to investigate (esp. since he was most 
                likely the one to break it :-)

Other features that need writing:

    * Finish infrastructure in core for async MPMs
        Status: post 2.0

    * TODO in source -- just do an egrep on "TODO" and see what's there

Documentation that needs writing:
    * Mod_status docs are needed.

    * The concept of MPMs, especially if we ship more than one MPM for a
      given platform

    * New directives in the various MPMs and appropriate links from
        obsolete directives in core.html to the MPM documentation.

    * Revise manual/stopping.html and the last part of
        manual/misc/perf-tuning.html to take account of the MPMs.

    * API documentation
        Status: Ben Laurie has written some hooks documentation
        (apache-2.0/htdocs/hooks.html)

    * Changes since 1.3.9 can be more easily seen in the commitlog file
         dev.apache.org:/home/cvs/CVSROOT/commitlogs/apache-2.0
      which includes some of Roy's comments when the changes were
      committed in rough change-sets by purpose.  Note that the commitlog
      does not show the contents of new files until later.

Available Patches:

   * Jon Travis's <jtravis@covalent.net> patch to deal with thread-safe
     issues with inet_ntoa.  See message <20001201163220.A12827@covalent.net>
        Status:  This is being set aside until the IPv6 work is finished
                 so that we know exactly what is required.

   * Martin Sojka <msojka@gmx.de>'s patch to add error reporting for failed 
     htpasswd actions due to a full /tmp volume (other programs may have
     similar problems?)
        PR: 6475
        Status:

   * Mike Abbott's <mja@trudge.engr.sgi.com> patches to improve
     performance
       Status: These were written for 1.3, and are awaiting a port to
       2.0
 
   * Jim Winstead's <jimw@trainedmonkey.com> patch to add CookieDomain and 
     other small mod_usertrack features

   * Dan Rench's <drench@xnet.com> patch to add allow the errmsg and timefmt 
     of SSI's to be modified in the config file.  Patch is available in 
     PR6193

Open issues:

   * What do we do about mod_proxy?

   * Which MPMs will be included with Apache 2.0?