su causing segmentation fault

winword10 · 12-22-2004, 06:28 PM

Hi. I'm having issues with the 'su' command resulting in a segmentation fault. This started yesterday after installing some system updates with portage (I use Gentoo).

Code:

[henry in ~ at 23:35:27]: su
Segmentation fault

I've tried running, recompiling and/or installing the following packages, all to no avail:

revdep-rebuild
util-linux
fileutils
coreutils
pam
shadow
sudo
pam-login
emerge -uD world

My /etc/make.conf file looks like this:

Code:

# These settings were set by the catalyst build script that automatically built$
# Please consult /etc/make.conf.example for a more detailed example
CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"
PORTDIR_OVERLAY=/usr/local/portage
PORT_LOGDIR=/var/log/portage

And my system specs are:
Pentium 4 @ 1400 MHz

I've posted this thread on the Gentoo Linux foroum also, but nobody there has been able to solve my problem yet, so I thought I'd try here.

Since this forum is really, really ghey, I can't post an actual link to that thread, so you'll have to do some copy and pasting.

The link to the thread on Gentoo's forum is forums.gentoo.org/viewtopic.php?p=1903442#1903442
Please help. Thanks.

H

jtshaw · 12-22-2004, 09:37 PM

Try re-emerging coreutils and sudo if you have that installed.

I show su being apart of the following packages:

Searching for /bin/su in * ...
app-admin/sudo-1.6.7_p5-r2
sys-apps/daemontools-0.76-r4
sys-apps/shadow-4.0.6
sys-apps/coreutils-5.2.1-r2

Unless you use qmail I imagine you don't even have daemontools installed. Sudo might not be installed either, obviously if it isn't then it isn't the problem.

You said you already redid shadow so that can't be it, but you definitely have coreutils installed so maybe it is the culprit.

Another good idea is to do an etcat -b /bin/su to see if it shows up in any other packages you have on your system.

winword10 · 12-22-2004, 10:02 PM

Looks like sudo is installed. I'll try re-emerging it now.

Code:

[henry in ~ at 23:00:21]: sudo etcat -b /bin/su
Searching for /bin/su in * ...
app-admin/sudo-1.6.7_p5-r2
sys-apps/shadow-4.0.5-r2
sys-apps/coreutils-5.2.1

winword10 · 12-22-2004, 10:16 PM

Ok, I've just re-emerged sudo and coreutils, and I'm still getting the segmentation fault error =(

crabboy · 12-23-2004, 12:43 AM

Quote:

rm -rf /

Yes. Usually less than helpfull.

Do you get a core file from the segfault?

If yes, open the core file in gdb and get a stack trace with the where command. It will identify where the segfault is occuring. Even with debugging turned off you should get some sort of trace.

if you don't get a core file then I'd suggest removing the -O adding a -g to the CPP flags and recompile. Run su in gdb and when it crashes you'll have a stack trace.

winword10 · 12-23-2004, 02:30 AM

Aight, new drink
one part alazhay one part chrystal
^_^ 5th post ^_^

-------

Someone over at the Gentoo forums advised me to emerge strace and trace it. Here are the results of that trace (done yesterday).

Code:

[henry in ~ at 00:32:05]: strace su | tail -n 50
execve("/bin/su", ["su"], [/* 41 vars */]) = 0
brk(0) = 0x8054000
open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe9000
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=35750, ...}) = 0
old_mmap(NULL, 35750, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fe0000
close(3) = 0
open("/lib/libcrypt.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0008\t\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=18732, ...}) = 0
old_mmap(NULL, 176732, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7fb4000
old_mmap(0xb7fb8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0xb7fb8000
old_mmap(0xb7fb9000, 156252, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7fb9000
close(3) = 0
open("/lib/libpam.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\23\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=28592, ...}) = 0
old_mmap(NULL, 30076, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7fac000
old_mmap(0xb7fb3000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0xb7fb3000
close(3) = 0
open("/lib/libpam_misc.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000\f\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=8880, ...}) = 0
old_mmap(NULL, 11412, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7fa9000
old_mmap(0xb7fab000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7fab000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\1U\1\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1169088, ...}) = 0
old_mmap(NULL, 1099428, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e9c000
old_mmap(0xb7fa3000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x106000) = 0xb7fa3000
old_mmap(0xb7fa6000, 9892, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7fa6000
close(3) = 0
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0002\33\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=10256, ...}) = 0
old_mmap(NULL, 12012, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e99000
old_mmap(0xb7e9b000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7e9b000
close(3) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e98000
munmap(0xb7fe0000, 35750) = 0
open("/dev/urandom", O_RDONLY) = 3
read(3, "\224\266\373y", 4) = 4
close(3) = 0
brk(0) = 0x8054000
brk(0x8075000) = 0x8075000
getuid32() = 1000
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
readlink("/proc/self/fd/0", 0x80540c8, 4095) = -1 EACCES (Permission denied)
fstat64(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
stat64("/dev/pts", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
open("/dev/null", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = -1 ENOTDIR (Not a directory)
open("/dev/pts", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
getdents64(3, /* 4 entries */, 1024) = 96
stat64("/dev/pts/1", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
close(3) = 0
readlink("/proc/self/fd/0", 0xbffff37c, 511) = -1 EACCES (Permission denied)
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
fstat64(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
stat64("/dev/pts/", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
open("/dev/pts/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
getdents64(3, /* 4 entries */, 1024) = 96
stat64("/dev/pts/1", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
close(3) = 0
access("/var/run/utmpx", F_OK) = -1 ENOENT (No such file or directory)
open("/var/run/utmp", O_RDWR) = -1 EACCES (Permission denied)
open("/var/run/utmp", O_RDONLY) = 3
fcntl64(3, F_GETFD) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
_llseek(3, 0, [0], SEEK_SET) = 0
alarm(0) = 0
rt_sigaction(SIGALRM, {0xb7f78635, [], 0}, {SIG_DFL}, 8) = 0
alarm(1) = 0
fcntl64(3, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=0, len=0}) = 0
read(3, "\10\0\0\0\305\23\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\1\0\0\0003N\0\0~\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\10\0\0\0\335\25\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\7\0\0\0\342\30\0\0vc/1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\6\0\0\0\344\30\0\0tty2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\6\0\0\0\345\30\0\0tty3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\6\0\0\0\346\30\0\0tty4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\6\0\0\0\347\30\0\0tty5\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\6\0\0\0\351\30\0\0tty6\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\7\0\0\0#r\0\0pts/0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
read(3, "\7\0\0\0\'r\0\0pts/1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 384) = 384
fcntl64(3, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=0, len=0}) = 0
alarm(0) = 1
rt_sigaction(SIGALRM, {SIG_DFL}, NULL, 8) = 0
close(3) = 0
getuid32() = 1000
socket(PF_FILE, SOCK_STREAM, 0) = 3
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3) = 0
open("/etc/nsswitch.conf", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=498, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe8000
read(3, "# /etc/nsswitch.conf:\n# $Header:"..., 4096) = 498
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7fe8000, 4096) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=35750, ...}) = 0
old_mmap(NULL, 35750, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fe0000
close(3) = 0
open("/lib/libnss_compat.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\21"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=27452, ...}) = 0
old_mmap(NULL, 29824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e90000
old_mmap(0xb7e97000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0xb7e97000
close(3) = 0
open("/lib/libnsl.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\350;\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=76472, ...}) = 0
old_mmap(NULL, 80512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e7c000
old_mmap(0xb7e8d000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11000) = 0xb7e8d000
old_mmap(0xb7e8e000, 6784, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7e8e000
close(3) = 0
munmap(0xb7fe0000, 35750) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=35750, ...}) = 0
old_mmap(NULL, 35750, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fe0000
close(3) = 0
open("/lib/libnss_nis.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\370\34"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=34408, ...}) = 0
old_mmap(NULL, 36196, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e73000
old_mmap(0xb7e7b000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0xb7e7b000
close(3) = 0
open("/lib/libnss_files.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\4\35\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=34640, ...}) = 0
old_mmap(NULL, 36696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e6a000
old_mmap(0xb7e72000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0xb7e72000
close(3) = 0
munmap(0xb7fe0000, 35750) = 0
open("/etc/passwd", O_RDONLY) = 3
fcntl64(3, F_GETFD) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
_llseek(3, 0, [0], SEEK_CUR) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=1944, ...}) = 0
mmap2(NULL, 1944, PROT_READ, MAP_SHARED, 3, 0) = 0xb7fe8000
_llseek(3, 1944, [1944], SEEK_SET) = 0
munmap(0xb7fe8000, 1944) = 0
close(3) = 0
stat64("/etc/pam.d", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/etc/pam.d/su", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1373, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fe8000
read(3, "#%PAM-1.0\n\nauth sufficient"..., 4096) = 1373
open("/lib/security/pam_rootok.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0P\5\0\000"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0755, st_size=3956, ...}) = 0
old_mmap(NULL, 6544, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb7fe6000
old_mmap(0xb7fe7000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0) = 0xb7fe7000
close(4) = 0
open("/lib/security/pam_wheel.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\v\0"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0755, st_size=10464, ...}) = 0
old_mmap(NULL, 8740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb7fe3000
old_mmap(0xb7fe5000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x2000) = 0xb7fe5000
close(4) = 0
open("/lib/security/pam_stack.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000\n\0"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0755, st_size=10900, ...}) = 0
old_mmap(NULL, 13488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb7e66000
old_mmap(0xb7e69000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x2000) = 0xb7e69000
close(4) = 0
time([1103693528]) = 1103693528
open("/etc/localtime", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=286, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e65000
read(4, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\6\0\0\0\6\0"..., 4096) = 286
close(4) = 0
munmap(0xb7e65000, 4096) = 0
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
socket(PF_FILE, SOCK_DGRAM, 0) = 4
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
connect(4, {sa_family=AF_FILE, path="/dev/log"}, 16) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 81, 0) = 81
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 79, 0) = 79
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
open("/lib/security/1", O_RDONLY) = -1 ENOENT (No such file or directory)
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 68, 0) = 68
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 120, 0) = 120
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 72, 0) = 72
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 81, 0) = 81
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 79, 0) = 79
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
open("/lib/security/2", O_RDONLY) = -1 ENOENT (No such file or directory)
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 68, 0) = 68
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 120, 0) = 120
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 72, 0) = 72
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
open("/lib/security/pam_env.so", O_RDONLY) = 5
read(5, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \n\0\000"..., 512) = 512
fstat64(5, {st_mode=S_IFREG|0755, st_size=10248, ...}) = 0
old_mmap(NULL, 12836, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5, 0) = 0xb7e62000
old_mmap(0xb7e65000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0x2000) = 0xb7e65000
close(5) = 0
time([1103693528]) = 1103693528
getpid() = 29229
rt_sigaction(SIGPIPE, {0xb7f4a6a7, [], 0}, {SIG_DFL}, 8) = 0
send(4, "<83>Dec 22 00:32:08 su[29229]: P"..., 81, 0) = 81
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++

=)

XavierP · 12-23-2004, 03:01 AM

Well done winword10. You have posted 10 times, but only 5 of them count. In future, think before posting. Just because you want to have enough posts to create a clickable link does not mean you should wreck other people's posts. Great start to the forum.

winword10 · 12-23-2004, 05:11 AM

Thanks XavierP. Glad to see you're as enthusiastic as I am, although it does just break me that only 5 of those posts count. That matters to me. Actually, I'm honored to have emanated such a productive, helpful response. From obtrusive anti-spam policies to contemptuous moderators, this forum has really done its share to welcome my question, and I can only hope to return the favor with my first impressions.

H

XavierP · 12-23-2004, 06:23 AM

So what, you believe yourself to be a revolutionary? Yeeesh. If you don't like the rules (which you have agreed to) and you don't like the moderators (contemptuous? you are the contemptuous one), why on earth did you go through with the sign up?

winword10 · 12-23-2004, 07:38 PM

I'm wondering that myself. My question isn't getting answered, and my thread has turned from a simple, harmless question into a dispute over 5 posts that mostly said things along the lines of "my favorite color is blue," not exactly "wrecking" those posts by any stretch of the imagination. That's what private messages are for buddy. What a waste of time this has been. Hopefully your demeanor will convince others in my situation to seek help elsewhere.

H

crabboy · 12-24-2004, 09:58 AM

Yea, I saw the strace on the gentoo forums, but strace only traces out system calls and does not show anything definitive.

An internal stack trace given in either a core file or a running program via gdb will show every internal method call in the su program. After looking at the stack trace there, it would point to a spot in the source code to start investigating.