Analysing processes in D state (uninterruptable sleep)
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SUSE Linux Enterprise Server 11 SP11
SUSE Linux Enterprise Server 11
1. ps -eo ppid,pid,user,stat,pcpu,comm,wchan:32
This prints a list of all processes where in the last column either a '-' is displayed when the process is running or the name of the kernel function in which the process is sleeping if the process is currently sleeping. This includes also processes which are interruptible. Processes that are in uninterruptible sleep can be determined via the fourth column which would then show a D.
2. echo w > /proc/sysrq-trigger
This command produces a report and a list of all processes in D state and a full kernel stack trace to /var/log/messages. This shows much more information than the first option described above.
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- Document ID:7010495
- Creation Date: 20-Jul-2012
- Modified Date:10-Mar-2021
- SUSE Linux Enterprise Server
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