All, Not sure if this is the right group to post this question, but any help is
highly appreciated , we are having an issue of utmpx getting corrupted and
loosing "boot time" information, uptime will not return system up time.
After lot of investigation , we figured out that apart from system binaries
which are updating utmpx file at the time of corruption , there is a program
(customized to our environment ) is running which is supposed to be reading
only from utmpx file , we verified the source code and the C library this
program is using is "getutxent()" but this file is opening utmpx as Read,write
and create mode? is this normal? we suspect that while the file is open in this
mode how are writes to utmpx file by other binaries handled? we are not sure
but are trying to figure out how exactly this file is getting corrupted..
open("/var/adm/utmpx", O_RDWR|O_CREAT, 0644) = 8
open("/var/adm/utmpx", O_RDWR) = 9
Thanks
-Lakshmi
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