From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+622acb507894a48b2ce9@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable (5)
Date: Wed, 22 Jan 2025 18:35:40 +0800 [thread overview]
Message-ID: <20250122103542.1719-1-hdanton@sina.com> (raw)
In-Reply-To: <66ff0083.050a0220.49194.03bb.GAE@google.com>
On Thu, 03 Oct 2024 13:37:23 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 5f5673607153 Merge branch 'for-next/core' into for-kernelci
> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f0f580580000
#syz test upstream master
--- x/kernel/workqueue.c
+++ y/kernel/workqueue.c
@@ -7815,7 +7815,7 @@ void __init workqueue_init_early(void)
system_wq = alloc_workqueue("events", 0, 0);
system_highpri_wq = alloc_workqueue("events_highpri", WQ_HIGHPRI, 0);
- system_long_wq = alloc_workqueue("events_long", 0, 0);
+ system_long_wq = alloc_workqueue("events_long", WQ_MEM_RECLAIM, 0);
system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND,
WQ_MAX_ACTIVE);
system_freezable_wq = alloc_workqueue("events_freezable",
--
next prev parent reply other threads:[~2025-01-22 10:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-17 16:39 [syzbot] [serial?] " syzbot
2024-10-03 20:37 ` [syzbot] [cgroups?] " syzbot
2025-01-22 10:35 ` Hillf Danton [this message]
2025-01-22 10:54 ` syzbot
2025-01-17 12:34 ` syzbot
2025-01-21 18:29 ` Michal Koutný
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