stumped - su segmentation fault
Richard B. Pyne
rpyne at kinfolk.org
Tue Nov 16 17:23:49 CET 2010
I am stumped. After a recent attempt to update one of my servers, I am
having problems that I have racked back to su seg faulting whenever the
attempt is to su to a specific user. The problem manifest itself when I
was trying to update postgresql and couldn't run initdb.
I have relined shadow several times with no change. Any help will be
greatly appreciated.
Here is the strace from "su - postgres"
execve("/bin/su", ["su", "-", "postgres"], [/* 25 vars */]) = 0
brk(0) = 0x805b000
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe8854408088020) = 0xb7804000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=28753, ...}) = 0
old_mmap(NULL, 28753, PROT_READ, MAP_PRIVATE, 3, 0xbfe880a408088020) =
0xb77fc000
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\0
\7\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=105870, ...}) = 0
old_mmap(NULL, 196956, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0xbfe87f9008088020) = 0xb77cb000
old_mmap(0xb77d3000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe87f9008088020) = 0xb77d3000
old_mmap(0xb77d5000, 155996, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0xbfe87f9008088020) = 0xb77d5000
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\0n\1\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=8898107, ...}) = 0
old_mmap(NULL, 1358376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0xbfe87f4408088020) = 0xb767f000
old_mmap(0xb77c5000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe87f4408088020) = 0xb77c5000
old_mmap(0xb77c8000, 10792, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0xbfe87f4408088020) = 0xb77c8000
close(3) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe8854408088020) = 0xb767e000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb767e6c0,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb77c5000, 8192, PROT_READ) = 0
mprotect(0xb77d3000, 4096, PROT_READ) = 0
mprotect(0xb7824000, 4096, PROT_READ) = 0
munmap(0xb77fc000, 28753) = 0
brk(0) = 0x805b000
brk(0x807c000) = 0x807c000
getuid32() = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
readlink("/proc/self/fd/0", "/dev/pts/2", 4095) = 10
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
open("/etc/login.defs", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0755, st_size=5336, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe87fb808088020) = 0xb7803000
read(3, "#\n# /etc/login.defs - Configurat"..., 4096) = 4096
read(3, "minals, define TTYGROUP to the g"..., 4096) = 1240
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7803000, 4096) = 0
open("/etc/consoles", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or
directory)
open("/proc/self/loginuid", O_RDONLY) = 3
read(3, "4294967295", 12) = 10
close(3) = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1
ENOENT (No such file or directory)
close(3) = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 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=1622, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe87fc408088020) = 0xb7803000
read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1622
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7803000, 4096) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=28753, ...}) = 0
old_mmap(NULL, 28753, PROT_READ, MAP_PRIVATE, 3, 0xbfe87a5c08088020) =
0xb77fc000
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\360\31\0\0004\0\0\0"..., 512)
= 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=190383, ...}) = 0
old_mmap(NULL, 45772, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0xbfe8794808088020) = 0xb7672000
old_mmap(0xb767c000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe8794808088020) = 0xb767c000
close(3) = 0
mprotect(0xb767c000, 4096, PROT_READ) = 0
munmap(0xb77fc000, 28753) = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
fcntl64(3, F_GETFD) = 0x1 (flags FD_CLOEXEC)
fstat64(3, {st_mode=S_IFREG|0644, st_size=3260, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe87fa808088020) = 0xb7803000
read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 3260
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7803000, 4096) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=28753, ...}) = 0
old_mmap(NULL, 28753, PROT_READ, MAP_PRIVATE, 3, 0xbfe87a8408088020) =
0xb77fc000
close(3) = 0
open("/lib/libnss_nisplus.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@\31\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=253007, ...}) = 0
old_mmap(NULL, 49956, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0xbfe8797008088020) = 0xb7665000
old_mmap(0xb7670000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe8797008088020) = 0xb7670000
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\0p1\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=497503, ...}) = 0
old_mmap(NULL, 92104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0xbfe877b008088020) = 0xb764e000
old_mmap(0xb7661000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe877b008088020) = 0xb7661000
old_mmap(0xb7663000, 6088, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0xbfe877b008088020) = 0xb7663000
close(3) = 0
mprotect(0xb7661000, 4096, PROT_READ) = 0
mprotect(0xb7670000, 4096, PROT_READ) = 0
munmap(0xb77fc000, 28753) = 0
uname({sys="Linux", node="venus", ...}) = 0
gettimeofday({1289924531, 575286}, NULL) = 0
stat64("/var/nis/NIS_COLD_START", 0xbfe87fac) = -1 ENOENT (No such file
or directory)
open("/var/nis/NIS_COLD_START", O_RDONLY) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=28753, ...}) = 0
old_mmap(NULL, 28753, PROT_READ, MAP_PRIVATE, 3, 0xbfe87a8808088020) =
0xb77fc000
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@\31\0\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=188761, ...}) = 0
old_mmap(NULL, 41536, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0xbfe8797408088020) = 0xb7643000
old_mmap(0xb764c000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbfe8797408088020) = 0xb764c000
close(3) = 0
mprotect(0xb764c000, 4096, PROT_READ) = 0
munmap(0xb77fc000, 28753) = 0
uname({sys="Linux", node="venus", ...}) = 0
open("/var/yp/binding/kinfolk.org.2", O_RDONLY) = -1 ENOENT (No such
file or directory)
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
getpid() = 14851
bind(3, {sa_family=AF_INET, sin_port=htons(611),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(612),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=3260, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe8779808088020) = 0xb7803000
read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 3260
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7803000, 4096) = 0
gettimeofday({1289924531, 597426}, NULL) = 0
stat64("/var/nis/NIS_COLD_START", 0xbfe8779c) = -1 ENOENT (No such file
or directory)
open("/var/nis/NIS_COLD_START", O_RDONLY) = -1 ENOENT (No such file or
directory)
open("/var/yp/binding/kinfolk.org.2", O_RDONLY) = -1 ENOENT (No such
file or directory)
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(613),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(614),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=3260, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0xbfe8678808088020) = 0xb7803000
read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 3260
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb7803000, 4096) = 0
gettimeofday({1289924531, 605435}, NULL) = 0
stat64("/var/nis/NIS_COLD_START", 0xbfe8678c) = -1 ENOENT (No such file
or directory)
open("/var/nis/NIS_COLD_START", O_RDONLY) = -1 ENOENT (No such file or
directory)
open("/var/yp/binding/kinfolk.org.2", O_RDONLY) = -1 ENOENT (No such
file or directory)
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(615),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(0),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
bind(3, {sa_family=AF_INET, sin_port=htons(616),
sin_addr=inet_addr("0.0.0.0")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(111),
sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused)
close(3) = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Segmentation fault
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