From 19f4343ba019729a3f86d27793bd9d83f0c1eab5 Mon Sep 17 00:00:00 2001
From: Petr Mladek <pmladek@suse.com>
Date: May 10 2023 14:34:45 +0000
Subject: workqueue: Interrupted create_worker() is not a repeated event

(bsc#1211044).

---

diff --git a/patches.suse/workqueue-Interrupted-create_worker-is-not-a-repeate.patch b/patches.suse/workqueue-Interrupted-create_worker-is-not-a-repeate.patch
new file mode 100644
index 0000000..074efe2
--- /dev/null
+++ b/patches.suse/workqueue-Interrupted-create_worker-is-not-a-repeate.patch
@@ -0,0 +1,48 @@
+From 60f540389a5d2df25ddc7ad511b4fa2880dea521 Mon Sep 17 00:00:00 2001
+From: Petr Mladek <pmladek@suse.com>
+Date: Tue, 7 Mar 2023 13:53:33 +0100
+Subject: [PATCH] workqueue: Interrupted create_worker() is not a repeated
+ event
+Git-commit: 60f540389a5d2df25ddc7ad511b4fa2880dea521
+Patch-mainline: v6.4-rc1
+References: bsc#1211044
+
+kthread_create_on_node() might get interrupted(). It is rare but realistic.
+For example, when an unbound workqueue is allocated in module_init()
+callback. It is done in the context of the "modprobe" process. And,
+for example, systemd might kill pending processes when switching root
+from initrd to the booted system.
+
+The interrupt is a one-off event and the race might be hard to reproduce.
+It is always worth printing.
+
+Signed-off-by: Petr Mladek <pmladek@suse.com>
+Signed-off-by: Tejun Heo <tj@kernel.org>
+
+---
+ kernel/workqueue.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/kernel/workqueue.c b/kernel/workqueue.c
+index 9760f0fca82d..5f0ecaaaf997 100644
+--- a/kernel/workqueue.c
++++ b/kernel/workqueue.c
+@@ -1959,8 +1959,13 @@ static struct worker *create_worker(struct worker_pool *pool)
+ 	worker->task = kthread_create_on_node(worker_thread, worker, pool->node,
+ 					      "kworker/%s", id_buf);
+ 	if (IS_ERR(worker->task)) {
+-		pr_err_once("workqueue: Failed to create a worker thread: %ld",
+-			    PTR_ERR(worker->task));
++		if (PTR_ERR(worker->task) == -EINTR) {
++			pr_err("workqueue: Interrupted when creating a worker thread \"kworker/%s\"\n",
++			       id_buf);
++		} else {
++			pr_err_once("workqueue: Failed to create a worker thread: %ld",
++				    PTR_ERR(worker->task));
++		}
+ 		goto fail;
+ 	}
+ 
+-- 
+2.35.3
+
diff --git a/series.conf b/series.conf
index afef7b8..fa2a90b 100644
--- a/series.conf
+++ b/series.conf
@@ -63307,6 +63307,7 @@
 	patches.suse/usb-chipidea-fix-missing-goto-in-ci_hdrc_probe.patch
 	patches.suse/workqueue-Fix-hung-time-report-of-worker-pools.patch
 	patches.suse/workqueue-Warn-when-a-new-worker-could-not-be-create.patch
+	patches.suse/workqueue-Interrupted-create_worker-is-not-a-repeate.patch
 	patches.suse/xfs-verify-buffer-contents-when-we-skip-log-replay.patch
 
 	# dhowells/linux-fs keys-uefi