[RFC] set the thread name
From: Stefani Seibold
Date: Tue Jun 16 2009 - 14:40:27 EST
Currently it is not easy to identify a thread in linux, because there is
no thread name like in some other OS.
If there were are thread name then we could extend a kernel segv message
and the /proc/<pid>/task/<tid>/... entries by a TName value like this:
TName: RX-Data <- this is the thread identification field
State: S (sleeping)
This will it make much easier to determinate which thread id is
associated to a logical thread.
It would be possible do this without add a new entry to the task_struct.
Just use the comm entry which is available, because it has the same
value as the group_leader->comm entry.
The only thing to do is to replace all task_struct->comm access by
task_struct->group_leader->comm to have the old behavior. This can be
eventually encapsulated by a macro.
The task_struct->comm of a non group_leader would be than the name of
The only drawback is that there are a lot of files which must be
modified. A quick
find linux-2.6.30 -type f | xargs grep -l -e "->comm\>" | wc -l
shows 215 files. But this can be handled.
So i propose a new system call to give a thread a name.
What do you think?
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