[rt-devel] Login problem

[Pawel Stradowski]

Hi

I have following problem:
-when I try to login to WebRT my browser goes back to the login screen

Server setup:
-Linux PLD, kernel 2.2.18
-perl 5.6.0
-Apache 1.3.17
-mod_perl 1.25 compiled as DSO
-"foreign" Apache modules: php 4.04 pl 1, mod_ssl 2.8.0, all modules compiled as DSO
-MySQL 3.23.33
-all perl modules are up to date


Client setup:
-tested browsers Netscape 4.74, lynx, w3m, Mozilla 0.8, IE ....
-cookies are enabled
-clean path between client and server - no proxy servers etc..
-all browsers work properly with http://fsck.com/rt2/

Other observations:
-log files /tmp/rt.log are empty
-session files are created in /tmp with perm 644 and owner http.http
-session lock files are created in /tmp with perm 600 and owner http.http
-/var/log/httpd/error_log does not show any messages from RT ( only normal Apache start/stop msg )
-mysqld works in logging mode ( -l=/var/log/mysql/log), sample fragment from log file:

010326  0:08:10     304 Connect    rt_user at localhost on rt2
                    304 Query      SELECT  * FROM Users WHERE Name = 'RT_System'
	            304 Query      SELECT  * FROM Users WHERE Name = 'Nobody'
	            304 Query      SELECT  * FROM Users WHERE Name = 'RT_System'
	            304 Query      SELECT  * FROM Users WHERE Name = 'Nobody'


-compiling mod_perl int httpd binary didn't change anything
-httpd -X - browser cannot retrieve page after pressing login
-strace httpd -X produces following output ( last lines before pressing CTRL-C to stop ):

brk(0x9c01000)                          = 0x9c01000
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
close(9)                                = 0
munmap(0x40018000, 4096)                = 0
open("/tmp/rt.log", O_WRONLY|O_APPEND|O_CREAT, 0666) = 9
fstat(9, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
fstat(9, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
_llseek(9, 0, [0], SEEK_SET)            = 0
fstat(9, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
fcntl(9, F_SETFD, FD_CLOEXEC)           = 0
rt_sigprocmask(SIG_BLOCK, NULL, [RT_0], 8) = 0
brk(0x9c11000)                          = 0x9c11000
brk(0x9c21000)                          = 0x9c21000
brk(0x9c31000)                          = 0x9c31000
brk(0x9c32000)                          = 0x9c32000
brk(0x9c33000)                          = 0x9c33000
brk(0x9c34000)                          = 0x9c34000
brk(0x9c35000)                          = 0x9c35000
fstat(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x403d3000
ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
read(0

-after stopping httpd (CTRL-C) strace returns:

read(0, 0x403d3000, 1024)               = ? ERESTARTSYS (To be restarted)
--- SIGINT (Interrupt) ---
rt_sigaction(SIGHUP, {SIG_IGN}, {0x405d2478, [], SA_INTERRUPT|0x4000000}, 8) = 0
rt_sigaction(SIGUSR1, {SIG_IGN}, {SIG_IGN}, 8) = 0
munmap(0x428d9000, 26984)               = 0
munmap(0x428e0000, 39072)               = 0
munmap(0x428ef000, 71660)               = 0
munmap(0x42901000, 33432)               = 0
munmap(0x4290a000, 173800)              = 0
munmap(0x42935000, 40600)               = 0
munmap(0x4293f000, 43988)               = 0
munmap(0x4294a000, 36428)               = 0
munmap(0x42988000, 28872)               = 0
munmap(0x42990000, 53292)               = 0
munmap(0x428ea000, 14652)               = 0
munmap(0x429a3000, 266496)              = 0
munmap(0x429e5000, 70492)               = 0
munmap(0x429f7000, 198180)              = 0
munmap(0x42a28000, 170908)              = 0
munmap(0x42a52000, 155748)              = 0
munmap(0x42a79000, 270328)              = 0
munmap(0x42adb000, 253724)              = 0
munmap(0x42abb000, 128224)              = 0
munmap(0x42b19000, 39532)               = 0
munmap(0x42b23000, 19244)               = 0
munmap(0x4299e000, 12416)               = 0
munmap(0x42b2d000, 141392)              = 0
munmap(0x42b50000, 20712)               = 0
munmap(0x42b28000, 11148)               = 0
rt_sigprocmask(SIG_BLOCK, NULL, [INT RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [INT RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [INT RT_0], 8) = 0
close(9)                                = 0
munmap(0x40018000, 4096)                = 0
rt_sigprocmask(SIG_BLOCK, NULL, [INT RT_0], 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [INT RT_0], 8) = 0
fcntl(8, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
read(8, 0x9beefa8, 8192)                = -1 EAGAIN (Resource temporarily unavailable)
fcntl(8, F_SETFL, O_RDWR)               = 0
write(8, "\1\0\0\0\1", 5)               = 5
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++



What is wrong ?


Regards
Pawel