Check the boot messages for any swap errors. A few months ago, after RHEL patching, we started receiving the following message at boot time "Swap area shorter than signature indicates". The problem was fixed by upgrading SNA's SWAPGEN utility. You may not have the same problem, but if there is a problem with swap space, then hopefully there will be a message when booting Linux.
-----Original Message----- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of wallter manning Sent: Tuesday, November 11, 2014 12:11 PM To: LINUX-390@VM.MARIST.EDU Subject: EXTERNAL: bad swap offset messages before OOM On a linux guest, we've been having OOM killer messages that I've been trying to get under control by limiting application memory but right before we get these OOM, I notice these messages:swap_free: Bad swap offset entry When OOM kicks in, I don't see swap being utilized much. We have multiple vdisks that are used for swap.Any thoughts? Thanks, -W ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
