home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!nntp1.radiomail.net!cronos!Metaphor.COM!polk
- From: polk@Metaphor.COM (Ben Polk)
- Newsgroups: comp.unix.aix
- Subject: Vanishing processes
- Message-ID: <2457@cronos.metaphor.com>
- Date: 22 Aug 92 22:00:23 GMT
- Sender: news@cronos.metaphor.com
- Reply-To: polk@Metaphor.COM (Ben Polk)
- Organization: m4
- Lines: 21
-
-
- I posted recently with a description of a problem where at least three
- different processes running on my machine are terminated by AIX. We
- have verified that a Signal 9 is being sent by the kernel, and that
- there is no corresponding kill() system call. Apperantly, AIX will
- do this if "while processing an execption, something that would
- cause another execption happens." This is of course to prevent
- an endless cycle of exceptions. The problem is that there is no error
- logged, you just receive a signal 9 and die quietly.
-
- The only thing I can think of the three processes have in common is
- that they are all doing network I/O. The most recent trace showed that
- in one case the signal 9 comes back during a select() system call. Perhaps
- there is a problem in the kernel mbuf handling. At least one of the other
- processes that receives the signal 9 is not doing a select() as far as
- I can tell.
-
- Has anyone seen anything like this?
-
- Ben Polk
- polk@metaphor.com
-