[APACHE DOCUMENTATION]

Known Bugs in Apache

The most up-to-date resource for bug tracking and information is the Apache bug database. Significant bugs at release time will also be noted there. If you are running a 1.2 beta release or version 1.1.3 or earlier and thing you have found a bug, please upgrade to 1.2. Many bugs in early versions have been fixed in 1.2.

See Also: Compatibility notes


Apache 1.2 Bugs

  1. On some architectures if your configuration uses multiple Listen directives then it is possible that the server will starve one of the sockets while serving hits on another. The work-around is to add -DUSE_FLOCK_SERIALIZED_ACCEPT to the EXTRA_CFLAGS line in your Configuration and rebuild. (If you encounter problems with that, you can also try -DUSE_FCNTL_SERIALIZED_ACCEPT.) This affects any architecture that doesn't use one of the USE_xxxxx_SERIALIZED_ACCEPT definitions, see the source file conf.h for your architecture. This will be tracked as PR#467.

  2. Fixed in 1.2.1. Apache's Content Negotiation should pick the smallest variant if there are several that are equally acceptable. A bug in 1.2 means it no longer does this unless all the variants have character sets. This patch fixes this problem. It also fixes the problem which makes Apache pick the last equally acceptable variant instead of the first. This will be tracked as PR#94.

  3. The PATH_INFO part of a request URI cannot include the sequence %2f. This will be tracked as PR#543.

  4. Users of early 1.2 betas reported problems with many connections stuck in the FIN_WAIT_2 state due to server timeouts. Several changes were made during the beta testing of 1.2 to reduce this problem as much as possible, although you may still see sockets in FIN_WAIT_2 state due to network or operating system issues outside the control of Apache. See our FIN_WAIT_2 page for more details.

    Note: Depending on client mixture, SunOS 4.x boxes may need all keepalives disabled with "KeepAlive off".

  5. Compilation fails on SCO3 when using gcc instead of cc, complaining with "gcc: noinline: No such file or directory". Fix is given in PR#695.

  6. If compilation fails complaining about "unknown symbol __inet_ntoa()" then you have probably installed version 8 of bind. You will need to explicitly link with the bind library by adding -lbind to EXTRA_LFLAGS in Configuration. See PR#616 and the Apache FAQ.

  7. The message "created shared memory segment #730499" in error_log is not an error and should be ignored. See PR#696.

  8. Compiling on Solaris 2 with SunSoft's C compiler gives the warning "mod_include.c", line 1123: warning: end-of-loop code not reached. This is a bogus warning and can be ignored. See PR#681.

  9. Workaround available in 1.2.1. There appears to be a problem on BSDI 2.1 with large numbers of virtual hosts. This appears similar to a file-descriptor limit but BSDI should not have this problem. This will be tracked as PR#611. See also the Apache FAQ.

  10. Workaround available in 1.2.1. Solaris 2 has problems with large numbers of virtual hosts. This is because of an operating system limit of 256 file pointers, not due to Apache. See also the Apache FAQ.


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