linux-kernel - Re: [BUGFIX v2 0/4] fix bug 56531, 59501 and 59581

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Message-ID: <CAN_LGv0yXhQi82ck3mvTbwuZv2dhnYB7Xnk9P4=5XVoAaAAeZQ@mail.gmail.com>
Date:	Mon, 17 Jun 2013 09:27:55 +0600
From:	"Alexander E. Patrakov" <patrakov@...il.com>
To:	Jiang Liu <liuj97@...il.com>
Cc:	Jiang Liu <jiang.liu@...wei.com>, alexdeucher@...il.com,
	"Rafael J . Wysocki" <rjw@...k.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Yijing Wang <wangyijing@...wei.com>,
	linux-acpi@...r.kernel.org,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [BUGFIX v2 0/4] fix bug 56531, 59501 and 59581

2013/6/16 Jiang Liu <liuj97@...il.com>:
> On 06/15/2013 02:42 PM, Alexander E. Patrakov wrote:

>> Both cases work, and exhibit similar backtraces in dmesg. So I am
>> attaching a dmesg only from the first testcase. Please look for "INFO:
>> trying to register non-static key" and for "*ERROR* Memory manager not
>> clean. Delaying takedown". I understand that the second trace is
>> unrelated to this patchset, but would like you to fix the first.
> Hi Alexander,
>         Great thanks for your testing!
>         I have investigated the first issue but still have no idea about it.
> According to source code, everything should be OK.
> The r8169 driver has invoked INIT_WORK(&tp->wk.work, rtl_task) to
> initialize the work item, so it shouldn't trigger the warning.
> Have you found this issue in other test cases?

I am not 100% sure that the static key backtrace is the same in all
cases. However, I do remember that it does appear both in the
non-hotplug and hotplug cases.

I will retest this after work, i.e. in ~12 hours.

-- 
Alexander E. Patrakov
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