From: Michael Hase (michael@six.de)
Date: Wed May 21 2003 - 07:34:46 EDT
Hello,
our e250/solaris 7 suddenly refuses rlogin and telnet logins, fortunately
ssh and console logins work ok. Every other service like databases, samba,
apache, nfs is also ok. It just seems that the in.telnetd or in.rlogind
processes are hanging.
Here's the output of a telnet session
telnet xxxxx.six.de
Trying xx.xx.xx.xx...
Connected to xxxxx.six.de.
Escape character is '^]'.
SunOS 5.7
After that nothing happens. in.telnetd is running, but there is no login
prompt. The same with rlogin. Here is the end of truss output on inetd
when such an rlogin session starts:
24492: write(6, " . r l o g i n\0\0\0\0\0".., 372) = 372
24488: sigaction(SIGCLD, 0xFFBEF980, 0xFFBEFA20) = 0
24492: lseek(7, 2520, SEEK_SET) = 2520
24488: sigprocmask(SIG_UNBLOCK, 0xFFBEFA50, 0xFFBEFA40) = 0
24492: write(7, " . r l o g i n\0 r P 0 0".., 36) = 36
24488: setpgrp() = 24488
24492: open("/var/adm/wtmp", O_WRONLY|O_APPEND) = 8
24488: sigaction(SIGTTOU, 0xFFBEF880, 0xFFBEF920) = 0
24492: open("/var/adm/wtmpx", O_WRONLY|O_APPEND) = 9
24488: sigprocmask(SIG_UNBLOCK, 0xFFBEF950, 0xFFBEF940) = 0
24492: lseek(8, 0, SEEK_END) = 5615244
24488: putmsg(0, 0xFFBEF94C, 0xFFBEF940, 0) = 0
24492: lseek(9, 0, SEEK_END) = 0x03755CA0
24492: write(8, " . r l o g i n\0 r P 0 0".., 36) = 36
24492: write(9, " . r l o g i n\0\0\0\0\0".., 372) = 372
24488: open("/dev/logindmux", O_RDWR) = 5
24492: close(8) = 0
24492: close(9) = 0
24488: open("/dev/logindmux", O_RDWR) = 6
24492: fcntl(6, F_SETLK, 0xFFBEF974) = 0
24492: fcntl(7, F_SETLK, 0xFFBEF974) = 0
24492: close(6) = 0
24488: ioctl(5, I_LINK, 4) = 3241
24492: close(7) = 0
24492: open("/etc/initpipe", O_RDWR) = 6
24488: ioctl(6, I_LINK, 0) = 3242
24488: fstat(5, 0xFFBEF9D8) = 0
24488: ioctl(6, I_STR, 0xFFBEF9C0) = 0
24488: fstat(6, 0xFFBEF9D8) = 0
24488: ioctl(5, I_STR, 0xFFBEF9C0) = 0
24488: ioctl(6, I_STR, 0xFFBEF9C0) = 0
24247: poll(0xFFBEF578, 49, -1) (sleeping...)
24492: write(6, "\0\0\001\0\0 _AC", 8) (sleeping...)
24488: pause() (sleeping...)
It just seems to hang after writing to /etc/initpipe
I first thought if this could be related to syslog entries like
sendmail[24580]: ypbind client: can't get rdev
Bug ID 4209076 on sunsolve says that this is a problem with 32bit apps
running on a 64bit kernel. We indeed get EOVERFLOW when trying to fstat
eg /dev/tcp, /dev/udp, /dev/arp from a 32bit test program. Could there be
any relation to the problem above? In this case a reboot would help (after
196 days uptime).
Any suggestions?
Thanks,
Michael
-- i.A. Michael Hase Six Offene Systeme GmbH michael@six.de Sielminger Str. 63 http://www.six.de 70771 Leinfelden-Echterdingen phone +49 711 99091 62 Germany _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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