Re: [syslog-ng] syslog-ng 1.9.5 segfaults on many platforms

19 Aug 2005

      oops...forgot to attach the strace

Paul Krizak                         5900 E. Ben White Blvd. MS 625
Advanced Micro Devices              Austin, Tx  78741
CAD Systems Engineering
Paul.Krizak@amd.com

Paul Krizak wrote:
...
I've built both the daily snapshot from 2005-08-19 as well as the 
"stable" (I know it's not really stable) 1.9.5 on three platforms:
RHEL4.1 x86_64
RHEL3.5 x86_64
Red Hat 7.3 2.4.29 i686
All three builds were with the default settings to ./configure.  The 
build finishes without a hiccup but segfaults when syslog-ng tries to 
start.  I've attached an strace (it's not very long...) to help show 
where it's segfaulting.
The reason I need this to work is for the enhanced program() destination 
driver that will respawn programs that die.
If somebody has a patch that backports this functionality to 1.6, that 
would be preferred, but a working 1.9.5 I could live with as well.
Any ideas?
[skaven@i-bragi1 ~/work/vtec/etc]$ strace syslog-ng -s -f syslog-ng.conf 
execve("/usr/local/sbin/syslog-ng", ["syslog-ng", "-s", "-f", "syslog-ng.conf"], [/* 57 vars */]) = 0
uname({sys="Linux", node="i-bragi1", ...}) = 0
brk(0)                                  = 0x546000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95556000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/tool/pandora64/.package/gcc-3.4.0/lib64/tls/x86_64/libnsl.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/tool/pandora64/.package/gcc-3.4.0/lib64/tls/x86_64", 0x7fbfffe870) = -1 ENOENT (No such file or directory)
open("/tool/pandora64/.package/gcc-3.4.0/lib64/tls/libnsl.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/tool/pandora64/.package/gcc-3.4.0/lib64/tls", 0x7fbfffe870) = -1 ENOENT (No such file or directory)
open("/tool/pandora64/.package/gcc-3.4.0/lib64/x86_64/libnsl.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/tool/pandora64/.package/gcc-3.4.0/lib64/x86_64", 0x7fbfffe870) = -1 ENOENT (No such file or directory)
open("/tool/pandora64/.package/gcc-3.4.0/lib64/libnsl.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/tool/pandora64/.package/gcc-3.4.0/lib64", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=176999, ...}) = 0
mmap(NULL, 176999, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2a95557000
close(3)                                = 0
open("/lib64/libnsl.so.1", O_RDONLY)    = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`G\300\r"..., 640) = 640
fstat(3, {st_mode=S_IFREG|0755, st_size=107367, ...}) = 0
mmap(0x3e0dc00000, 1141480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3e0dc00000
mprotect(0x3e0dc13000, 1063656, PROT_NONE) = 0
mmap(0x3e0dd13000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x3e0dd13000
mmap(0x3e0dd15000, 6888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3e0dd15000
close(3)                                = 0
open("/tool/pandora64/.package/gcc-3.4.0/lib64/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/lib64/tls/libc.so.6", O_RDONLY)  = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\305\261"..., 640) = 640
lseek(3, 624, SEEK_SET)                 = 624
read(3, "\4\0\0\0\20\0\0\0\1\0\0\0GNU\0\0\0\0\0\2\0\0\0\4\0\0\0"..., 32) = 32
fstat(3, {st_mode=S_IFREG|0755, st_size=1490956, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95583000
mmap(0x3e07b00000, 2305992, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3e07b00000
mprotect(0x3e07c29000, 1089480, PROT_NONE) = 0
mmap(0x3e07d29000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x129000) = 0x3e07d29000
mmap(0x3e07d2f000, 16328, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3e07d2f000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95584000
mprotect(0x3e07d29000, 12288, PROT_READ) = 0
arch_prctl(0x1002, 0x2a955842c0)        = 0
munmap(0x2a95557000, 176999)            = 0
brk(0)                                  = 0x546000
brk(0x567000)                           = 0x567000
open("/etc/localtime", O_RDONLY)        = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=1279, ...}) = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=1279, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95557000
read(3, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\5\0\0\0\5\0"..., 4096) = 1279
close(3)                                = 0
munmap(0x2a95557000, 4096)              = 0
rt_sigaction(SIGPIPE, {SIG_IGN}, NULL, 8) = 0
rt_sigaction(SIGHUP, {0x4034d0, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGTERM, {0x4034e0, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGINT, {0x4034e0, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGCHLD, {0x403510, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {0x4034f0, [], SA_ONESHOT|0x4000000}, NULL, 8) = 0
open("/etc/eventlog.conf", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("syslog-ng.conf", O_RDONLY)        = 3
ioctl(3, SNDCTL_TMR_TIMEBASE, 0x7fbfffef10) = -1 ENOTTY (Inappropriate ioctl for device)
fstat(3, {st_mode=S_IFREG|0644, st_size=2867, ...}) = 0
mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95557000
read(3, "# OPTIONS\n# See http://www.balab"..., 32768) = 2867
read(3, "", 32768)                      = 0
socket(PF_UNIX, SOCK_STREAM, 0)         = 4
fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR|O_LARGEFILE)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(4, {sa_family=AF_UNIX, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
socket(PF_UNIX, SOCK_STREAM, 0)         = 4
fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR|O_LARGEFILE)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(4, {sa_family=AF_UNIX, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
open("/etc/nsswitch.conf", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=396, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a9555f000
read(4, "passwd:         files nis\nshadow"..., 4096) = 396
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x2a9555f000, 4096)              = 0
open("/tool/pandora64/.package/gcc-3.4.0/lib64/libnss_files.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=176999, ...}) = 0
mmap(NULL, 176999, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2a95585000
close(4)                                = 0
open("/lib64/libnss_files.so.2", O_RDONLY) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\"\0\0\0"..., 640) = 640
fstat(4, {st_mode=S_IFREG|0755, st_size=56807, ...}) = 0
mmap(NULL, 1094952, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x2a955b1000
mprotect(0x2a955bb000, 1053992, PROT_NONE) = 0
mmap(0x2a956bb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0xa000) = 0x2a956bb000
close(4)                                = 0
munmap(0x2a95585000, 176999)            = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=2477, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2477
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
socket(PF_UNIX, SOCK_STREAM, 0)         = 4
fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR|O_LARGEFILE)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(4, {sa_family=AF_UNIX, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
socket(PF_UNIX, SOCK_STREAM, 0)         = 4
fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR|O_LARGEFILE)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(4, {sa_family=AF_UNIX, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
open("/etc/group", O_RDONLY)            = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=801, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 801
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=2477, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2477
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/group", O_RDONLY)            = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=801, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 801
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=2477, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2477
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/group", O_RDONLY)            = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=801, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 801
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=2477, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2477
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/group", O_RDONLY)            = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=801, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 801
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=2477, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2477
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
open("/etc/group", O_RDONLY)            = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
fstat(4, {st_mode=S_IFREG|0644, st_size=801, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a95585000
read(4, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 801
close(4)                                = 0
munmap(0x2a95585000, 4096)              = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
getpid()                                = 2926
kill(2926, SIGSEGV)                     = 0
rt_sigreturn(0xb6e)                     = 155
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++