From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 216422] New: BUG: kernel NULL pointer dereference, address: 0000000000000000
Date: Sat, 27 Aug 2022 20:48:06 +0000 [thread overview]
Message-ID: <bug-216422-208809@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=216422
Bug ID: 216422
Summary: BUG: kernel NULL pointer dereference, address:
0000000000000000
Product: Drivers
Version: 2.5
Kernel Version: 5.18.0-rc1-1-00059-g87d0e2f41b8c
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: USB
Assignee: drivers_usb@kernel-bugs.kernel.org
Reporter: kernel-bugzilla@janbruckner.de
Regression: No
Created attachment 301686
--> https://bugzilla.kernel.org/attachment.cgi?id=301686&action=edit
dmesg with NULL pointer dereferences.
Hi,
Several users including me are experiencing an issue with Thinkpads becoming
completely unresponsive after several hours. This seems to happen more often
shortly after the system has been idle for some time.
The issue only occurs when the Thinkpad is already connected to a USB C docking
station before booting.
dmesg shows regular
"BUG: kernel NULL pointer dereference, address: 0000000000000000"
that do not cause a crash however.
These only show up, when the systemd upower.service is running.
In the attached dmesg.txt, I booted with upower.service disabled and started it
manually which immediately lead to the NULL pointer dereference (but no crash).
We bisected and found the offending commit in
https://bbs.archlinux.org/viewtopic.php?id=279027
Please see the attached bisect-log.txt .
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next reply other threads:[~2022-08-27 20:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-27 20:48 bugzilla-daemon [this message]
2022-08-27 20:49 ` [Bug 216422] BUG: kernel NULL pointer dereference, address: 0000000000000000 bugzilla-daemon
2022-08-28 0:21 ` bugzilla-daemon
2022-08-28 11:28 ` bugzilla-daemon
2024-03-15 10:07 ` bugzilla-daemon
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