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- Path: sparky!uunet!caen!zaphod.mps.ohio-state.edu!cs.utexas.edu!gateway
- From: queiroz@pitanga.cmp.unicamp.br
- Newsgroups: comp.databases.informix
- Subject: System crashing after Informix
- Date: 9 Nov 1992 06:53:24 -0600
- Organization: UTexas Mail-to-News Gateway
- Lines: 54
- Sender: daemon@cs.utexas.edu
- Message-ID: <9211091351.AA30058@pitanga.cmp.unicamp.br>
-
- I have modified the kernel of our machine, a sparcserver
- 390 running sunos 4.1.1 to support the informix.
- I have added the following three lines:
-
- options SEMMNS=500
- options SEMMNI=128
- options SEMMSL=200
-
- SEMMI defines the maximum number of uniquely identified semaphore
- clusters that may exist simultaneously.
- SEMMNS defines the maximum number of semaphores in the system.
- (Definitions from the System Administration Manual)
-
- We changed this because we couldn't load informix using the
- raw device as its database. Informix uses shared memory and
- without this changes we couldn't initialize the informix kernel.
- Well, after the kernel was modified, the machine
- started crashing at least three times a day. The following messages
- are issued every time it crashes:
- Oct 29 09:35:37 obelix vmunix: assertion failed:
- off >= vp_off, file: ../../vm /vm_pvn.c, line: 133
- Oct 29 09:35:37 obelix vmunix: panic: assertion failed
- Oct 29 09:35:37 obelix vmunix: syncing file systems... [16] 1 [16]
- [12] [4] done
- Oct 29 09:35:37 obelix vmunix: 00290 low-memory static kernel pages
- Oct 29 09:35:37 obelix vmunix: 00213 additional static and sysmap kernel pages
-
- We have posted this same message to the sun-managers
- list. One of the replies I received recommended
- the application of the patch
- number 100338, but it didn't work.
- Some others suggested different values for the
- parameters I mentioned above but again it didn't work.
- I suspect this is a problem with the OS, but I
- don't really know.
-
- We are quite desperate and if any of you could supply us
- with any hints as to how to deal with this problem we will
- be eternally grateful :-)
-
- Please, reply directly to me at the address:
- sandra@ccsun.unicamp.br
-
- I will post my conclusions to the list afterwards.
- Thanks again.
-
- Sandra Regina de Souza
- sandra@ccsun.unicamp.br
- System Administrator
- State University of Campinas
- Computer Center
- Campinas - Sao Paulo - Brazil
-
-
-