![]() To generalize you may have a software problem or a hardware problem. This kind of intermittent failures can be difficult to diagnose. I am assuming you are working with a physical computer and not a Virtual Machine (VM). For instance, in /var/log/messages, the latest such freeze is at line 1091020 (the lines that follow are the reboot that I started by pressing the power button, as the system is unresponsive at that stage, including to ssh): 1091015 Jun 8 17:20:17 drishti env: 00:20:17,967 TRACE spool dir at /local/raid0/jsonar/data/gateway/spoolġ091016 Jun 8 17:20:17 drishti env: 00:20:17,968 TRACE spool dir at /local/raid0/jsonar/data/gateway/spool/0ġ091017 Jun 8 17:20:17 drishti env: 00:20:17,968 TRACE spool dir at /local/raid0/jsonar/data/gateway/spool/0/spoolġ091018 Jun 8 17:20:17 drishti env: 00:20:17,968 TRACE spool dir at /local/raid0/jsonar/data/gateway/spool/3ġ091019 Jun 8 17:20:17 drishti env: 00:20:17,968 TRACE spool dir at /local/raid0/jsonar/data/gateway/spool/3/spoolġ091020 Jun 8Jun 9 09:17:59 drishti journal: Runtime journal is using 8.0M (max allowed 1.5G, trying to leave 2.3G free of 15.6G available → current limit 1.5G).ġ091021 Jun 9 09:17:59 drishti kernel: microcode: microcode updated early to revision 0xca, date = ġ091022 Jun 9 09:17:59 drishti kernel: Initializing cgroup subsys cpusetġ091023 Jun 9 09:17:59 drishti kernel: Initializing cgroup subsys cpuġ091024 Jun 9 09:17:59 drishti kernel: Initializing cgroup subsys cpuacctġ091025 Jun 9 09:17:59 drishti kernel: Linux version 3.10.86_64 (gcc version 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC) ) #1 SMP Tue Mar 31 23:36:ġ091026 Jun 9 09:17:59 drishti kernel: Command line: BOOT_IMAGE=/vmlinuz-3.10.86_64 root=UUID=c7039987-532d-4b03-b706-0b40b9aa50d4 ro crashkernel=auto rhgb quiet crashkernel=128Mġ091027 Jun 9 09:17:59 drishti kernel: e820: BIOS-provided physical RAM map:Ĭan you suggest approaches to debug this issue? The kdump service is running, but no crash dump file is created. I have a CentOS 7 machine that would freeze every few days.
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