[Bug 51689] Cross compiling causes multiple Listen directives to not work properly

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=51689

--- Comment #4 from Ritesh Prajapati <ri...@slscorp.com> ---
I have cross compiled and installed Apache 2.4.4 and 2.4.9 for my cusotm Linux
Board.

Whenever I tried to listen on multiple listen ports like
Listen 80
Listen 8080
at that time, HTTP request goes into hang state and can not come out for that
state.
It works find with single Listen Directive for my linux custom board.

I have also added following flags in configuration script of httpd to solve
that issue but still failed to execute HTTP request.

ac_cv_file__dev_zero=yes ac_cv_func_setpgrp_void=yes
apr_cv_process_shared_works=yes apr_cv_mutex_robust_shared=no
apr_cv_tcp_nodelay_with_cork=yes apr_cv_mutex_recursive=yes
ap_cv_void_ptr_lt_long=no ac_cv_sizeof_struct_iovec=8 ac_cv_struct_rlimit=yes \
ac_cv_o_nonblock_inherited=no



I have also debug httpd process using starce and found that read system call
goe into blocking state which never returns.

$ ./strace -p 1811
Process 1811 attached
restart_syscall(<... resuming interrupted call ...>) = 0
poll([{fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 2, 10000) = 0 (Timeout)
poll([{fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 2, 10000) = 0 (Timeout)
poll([{fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 2, 10000) = 1 ([{fd=4,
revents=POLLIN}])
accept(4, {sa_family=AF_INET6, sin6_port=htons(40827), inet_pton(AF_INET6,
"::ffff:192.168.0.45", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) =
11
fcntl64(11, F_GETFD)                    = 0
fcntl64(11, F_SETFD, FD_CLOEXEC)        = 0
semop(950296, {{0, 1, SEM_UNDO}}, 1)    = 0
gettimeofday({1405747420, 372062}, NULL) = 0
getsockname(11, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6,
"::ffff:192.168.0.183", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) =
0
gettimeofday({1405747420, 374162}, NULL) = 0
gettimeofday({1405747420, 374976}, NULL) = 0
read(11, "GET / HTTP/1.1\r\nHost: 192.168.0."..., 8000) = 289
gettimeofday({1405747420, 377850}, NULL) = 0
gettimeofday({1405747420, 380080}, NULL) = 0
gettimeofday({1405747420, 382529}, NULL) = 0
gettimeofday({1405747420, 384638}, NULL) = 0
gettimeofday({1405747420, 386798}, NULL) = 0
gettimeofday({1405747420, 388903}, NULL) = 0
gettimeofday({1405747420, 390971}, NULL) = 0
gettimeofday({1405747420, 393006}, NULL) = 0
gettimeofday({1405747420, 395390}, NULL) = 0
gettimeofday({1405747420, 397474}, NULL) = 0
stat64("/usr/local/apache2/htdocs/", {st_mode=S_IFDIR|0777, st_size=4096, ...})
= 0
stat64("/usr/local/apache2/htdocs/index.html", {st_mode=S_IFREG|0777,
st_size=45, ...}) = 0
open("/usr/local/apache2/htdocs/index.html", O_RDONLY|O_CLOEXEC) = 12
open("/etc/localtime", O_RDONLY)        = 13
fstat64(13, {st_mode=S_IFREG|0644, st_size=127, ...}) = 0
fstat64(13, {st_mode=S_IFREG|0644, st_size=127, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2a01d000
read(13, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\1\0\0\0\0"...,
4096) = 127
_llseek(13, -11, [116], SEEK_CUR)       = 0
read(13, "\n<GMT-8>-8\n", 4096)         = 11
close(13)                               = 0
munmap(0x2a01d000, 4096)                = 0
gettimeofday({1405747420, 441452}, NULL) = 0
read(11, 

Please let me know if anyone has idea about this issue or any work arounds for
that.

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