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From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Lukasz Kalamlacki <kalamlacki@gmail.com>,
	Hyunwoo Kim <imv4bel@gmail.com>, Sasha Levin <sashal@kernel.org>,
	Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux Regressions <regressions@lists.linux.dev>,
	Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: Re: Fwd: w_scan hangs on 6.3.7 and does not react on kill -9
Date: Tue, 13 Jun 2023 18:23:30 +0700	[thread overview]
Message-ID: <cc577237-7814-0bea-a152-8acdea844088@gmail.com> (raw)
In-Reply-To: <67afa974-835a-77cc-d4bb-49cba0ff5bf5@gmail.com>

On 6/12/23 20:52, Bagas Sanjaya wrote:
> Hi,
> 
> I notice a regression report on Bugzilla [1]. Quoting from it:
> 
>> w_scan tool on kernel 6.3.7 hangs so badly that it cannot be killed by kill -9 
>> I tried also w_scan_cpp 20230604 but it also fails I have 2040:8268 Hauppauge soloHD device as reported by lsusb. During reboot of the OS it prints a lot of kernel errors but it is after syslog is killed I guess and in syslog messages I do not see anything. On default Debian kernel 5.10.0-23 this problem does not exists.
> 
> 
> See Bugzilla for the full thread and attached dmesg and kernel config.
> 
> Lukasz: On what hardware you have this regression? Also, it is really
> helpful if you can perform bisection (as outlined
> in Documentation/admin-guide/bug-bisect.html) to find the culprit,
> when developers can't figure it out by inspecting the code alone.
> Last but not least, please also try latest mainline (currently v6.4-rc6).
> 
> Anyway, I'm adding it to regzbot:
> 
> #regzbot introduced: v5.10..v6.3 https://bugzilla.kernel.org/show_bug.cgi?id=217540
> #regzbot title: w_scan zombie (unkillable) on kernel v6.3
> 

Another reporter on Bugzilla with similar regression as this one had
bisected the culprit, so:

Hyunwoo Kim: It looks like this regression is caused by a backported
commit of yours. Would you like to take a look on it?

#regzbot introduced: 8994830135b38b

Thanks.

-- 
An old man doll... just what I always wanted! - Clara


  reply	other threads:[~2023-06-13 11:24 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-12 13:52 Fwd: w_scan hangs on 6.3.7 and does not react on kill -9 Bagas Sanjaya
2023-06-13 11:23 ` Bagas Sanjaya [this message]
2023-06-13 11:59   ` Linux regression tracking (Thorsten Leemhuis)
2023-06-13 12:33     ` Bagas Sanjaya

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