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process-util: debug log if PR_SET_NAME fails.
author
Lennart Poettering
<lennart@poettering.net>
Sun, 24 Dec 2017 17:50:17 +0000
(18:50 +0100)
committer
Sven Eden
<yamakuzure@gmx.net>
Wed, 30 May 2018 05:49:45 +0000
(07:49 +0200)
src/basic/process-util.c
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diff --git
a/src/basic/process-util.c
b/src/basic/process-util.c
index 5a00fca834ff1b05931702eb86c7963b5ad13596..cb92bab0f51aa347b0b158d94700936a8e608972 100644
(file)
--- a/
src/basic/process-util.c
+++ b/
src/basic/process-util.c
@@
-305,8
+305,10
@@
int rename_process(const char name[]) {
l = strlen(name);
- /* First step, change the comm field. */
- (void) prctl(PR_SET_NAME, name);
+ /* First step, change the comm field. The main thread's comm is identical to the process comm. This means we
+ * can use PR_SET_NAME, which sets the thread name for the calling thread. */
+ if (prctl(PR_SET_NAME, name) < 0)
+ log_debug_errno(errno, "PR_SET_NAME failed: %m");
if (l > 15) /* Linux process names can be 15 chars at max */
truncated = true;