Ask Bjørn Hansen wrote:
Sometimes in situations like this it can be helpful to run strace (or your
platforms equivalent). On linux something like:
strace -o /tmp/pdns.trace -f /usr/bin/pdns
will generate list of system calls in /tmp/pdns.trace -- it might give a
hint as to what the process gets stuck on.
- ask
Thanks a lot, Ask. I don't know what to look for in the trace output, so
for what it's worth, here's a listing of all the calls that have a return
code of "-1":
5386 open("/etc/libmap.conf", O_RDONLY) = -1 ENOENT (No such file or
directory)
5386 access("/lib/libstdc++.so.6", F_OK) = -1 ENOENT (No such file or
directory)
5386 readlink("/etc/malloc.conf", 0xbfbfe557, 1024) = -1 ENOENT (No such
file or directory)
5386 mkdir("/var/run/", 0700) = -1 EEXIST (File exists)
5386 ioctl(5, TIOCGETA, 0xbfbfe578) = -1 ENOTTY (Inappropriate ioctl for
device)
5386 access("/lib/nss_compat.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_compat.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/compat/nss_compat.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/usr/local/lib/nss_compat.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/usr/local/lib/mysql/nss_compat.so.1", F_OK) = -1 ENOENT (No
such file or directory)
5386 access("/lib/nss_compat.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_compat.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/lib/nss_nis.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_nis.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/compat/nss_nis.so.1", F_OK) = -1 ENOENT (No such file
or directory)
5386 access("/usr/local/lib/nss_nis.so.1", F_OK) = -1 ENOENT (No such file
or directory)
5386 access("/usr/local/lib/mysql/nss_nis.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/lib/nss_nis.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_nis.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/lib/nss_files.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_files.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/compat/nss_files.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/usr/local/lib/nss_files.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/usr/local/lib/mysql/nss_files.so.1", F_OK) = -1 ENOENT (No
such file or directory)
5386 access("/lib/nss_files.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_files.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/lib/nss_dns.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_dns.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/compat/nss_dns.so.1", F_OK) = -1 ENOENT (No such file
or directory)
5386 access("/usr/local/lib/nss_dns.so.1", F_OK) = -1 ENOENT (No such file
or directory)
5386 access("/usr/local/lib/mysql/nss_dns.so.1", F_OK) = -1 ENOENT (No such
file or directory)
5386 access("/lib/nss_dns.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 access("/usr/lib/nss_dns.so.1", F_OK) = -1 ENOENT (No such file or
directory)
5386 ioctl(5, TIOCGETA, 0xbfbfe578) = -1 ENOTTY (Inappropriate ioctl for
device)
The call that seems to be interrupted mid-stream is this one:
5386 setgid(0x3eans1
Thanks,
Dave
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