
linux - What is an uninterruptible process? - Stack Overflow
An uninterruptible process is a process which happens to be in a system call (kernel function) that cannot be interrupted by a signal. To understand what that means, you need to understand the …
How to stop 'uninterruptible' process on Linux? - Stack Overflow
I have a VirtualBox process hanging around which I tried to kill (KILL/ABORT) but without success. The parent pid is 1 (init). top shows the process as D which is documented as "uninterruptible sl...
Why there is a state called `TASK_UNINTERRUPTIBLE` in Linux kernel?
Dec 10, 2024 · As you could read from that answer, setting the current process state to TASK_UNINTERRUPTIBLE is needed for make schedule() call, performed by that thread, to put the …
how to find out what it is waiting for - Stack Overflow
Mar 14, 2016 · When looking at the process with "ps ax" the stat column is "Dl" which means "uninterruptible sleep (usually IO)". Is it possible to find out more details on what the process is …
linux - Process permanently stuck on D state - Stack Overflow
Sep 15, 2017 · I understand these are uninterruptible sleep states often related to waiting for data from hardware such as a hard disk. This is a production server so rebooting is a very last resort, is anyone …
linux - Zombie vs Defunct processes? - Stack Overflow
Dec 26, 2017 · For Linux "defunct" and "zombie" processes are the same. From man ps: Processes marked <defunct> are dead processes (so-called "zombies") that remain because their parent has …
Linux Process States - Stack Overflow
Sep 25, 2009 · A process performing I/O will be put in D state (uninterruptable sleep), which frees the CPU until there is a hardware interrupt which tells the CPU to return to executing the program. See …
Do we need to call set_current_state (TASK ... - Stack Overflow
Sep 23, 2019 · Yes, you must call set_current_state() before calling schedule(), because otherwise the scheduler will not remove the task from the run queue (if you just want to potentially allow other tasks …
c - Diagnosing process stuck in D state (uninterruptable sleep ...
Dec 9, 2015 · On one particular system we see WIS-Streamer get stuck in an TASK_UNINTERRUPTIBLE state; From the command line: the ps status for the process is shown as …
How to create an uninterruptible sleep in C? - Stack Overflow
Apr 25, 2015 · 0 I'm looking to create a state of uninterruptible sleep for a program I'm writing. Any tips or ideas about how to create this state would be helpful. So far I've looked into the wait_event () …