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From: "Maximilian Böhm" <maximilian.boehm@elbmurf.de>
To: paskripkin@gmail.com, hverkuil-cisco@xs4all.nl,
	mchehab+huawei@kernel.org, sashal@kernel.org,
	linux-media@vger.kernel.org
Subject: Kernel hangs after DVB patch from July 2021 with Hauppauge WinTV dualHD
Date: Sat, 18 Dec 2021 02:09:46 +0100	[thread overview]
Message-ID: <6a72a37b-e972-187d-0322-16336e12bdc5@elbmurf.de> (raw)

Hello Paul and the other people involved,

I’m a user of a Hauppauge WinTV dualHD DVB-T2 USB card and experiencing a bug since Linux 5.15.3 of which kernel bisecting brought me to a commit by you from Juli 29: "media: em28xx: add missing em28xx_close_extension".
My problem: This TV stick doesn’t work for me after a wake up from a system standby, so I have to use the little helper tool usbreset to reset its USB connection. But if I try this after Linux 5.15.3, I get a severe kernel error in dmesg, system hangs and I’m unable to proper reboot or shutdown. I have reported this on the kernel Bugzilla, including a dmesg log: https://bugzilla.kernel.org/show_bug.cgi?id=215241

I hope you have an idea about how to stop this problem from occurring and I‘m willing to help testing a fix.
Another thinkable fix would be to directly fix this TV stick’s standby-wake-up problem but I’m not savvy enough to determine if this would be the better option than to fix this hanging issue.

Best regards

Maximilian Böhm


             reply	other threads:[~2021-12-18  1:09 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-18  1:09 Maximilian Böhm [this message]
2021-12-18  9:15 ` Kernel hangs after DVB patch from July 2021 with Hauppauge WinTV dualHD Mauro Carvalho Chehab
2021-12-18 14:23   ` Pavel Skripkin
2021-12-18 22:50     ` Maximilian Böhm
2021-12-20 14:39       ` Pavel Skripkin
2022-01-04 17:22         ` Maximilian Böhm
2022-01-04 17:31           ` Pavel Skripkin
2022-01-04 17:58             ` Maximilian Böhm
2022-01-06 11:54               ` Pavel Skripkin
2022-01-06 11:57                 ` Pavel Skripkin
2022-01-20 19:29                   ` Maximilian Böhm
2022-01-20 19:37                     ` [PATCH] Revert "media: em28xx: add missing em28xx_close_extension" Pavel Skripkin
2022-01-21 18:30                       ` Maximilian Böhm
2022-01-20 19:42                     ` Kernel hangs after DVB patch from July 2021 with Hauppauge WinTV dualHD Pavel Skripkin
2022-02-17 11:14                     ` Hans Verkuil
2022-02-18  0:16                       ` Maximilian Böhm
2022-02-18  7:58                         ` Hans Verkuil
2021-12-18 20:33   ` Robert Schlabbach
2021-12-18 20:51     ` Pavel Skripkin
2021-12-18 23:19   ` Maximilian Böhm

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