System crashing after Informix
Posted in 1992
Topics: Error Codes & Troubleshooting, Server Administration, Clustering, Grid & MACH11
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