From: "Ali Ahmet Memiş" <aliamemis@disroot.org>
To: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
LKML <linux-kernel@vger.kernel.org>,
Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>,
linux-s390@vger.kernel.org
Subject: Re: [PATCH] tracing: Delay module ref count for "enable_event" trigger
Date: Fri, 11 Sep 2026 19:00:13 +0300 [thread overview]
Message-ID: <20260911160016.355492-1-aliamemis@disroot.org> (raw)
In-Reply-To: <20260828134340.2501683A24-agordeev@linux.ibm.com>
On Fri, Aug 28, 2026 at 03:43:40PM +0200, Alexander Gordeev wrote:
> This patch increasingly looks as a regression on s390.
> We are hitting this once in a while when running the ftrace selftests:
[...]
> I did not manage to come up with a reproducer - if you have any idea,
> please let me know.
Sent a fix:
https://lore.kernel.org/all/20260911155650.354844-1-aliamemis@disroot.org/
It's the deferred trace_event_put_ref() reading file->event_call after the
instance rmdir already freed the trace_event_file. Could you give it a run?
prev parent reply other threads:[~2026-09-11 16:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-24 17:24 [PATCH] tracing: Delay module ref count for "enable_event" trigger Steven Rostedt
2026-08-28 13:43 ` Alexander Gordeev
2026-09-11 16:00 ` Ali Ahmet Memiş [this message]
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