From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 221103] xhci_hcd: System lockup under CPU load during usbfs polling of USB devices on AMD platforms
Date: Fri, 20 Feb 2026 09:28:04 +0000 [thread overview]
Message-ID: <bug-221103-208809-PyUKmI9a3I@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-221103-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=221103
--- Comment #7 from Michał Pecio (michal.pecio@gmail.com) ---
(In reply to Paul Alesius from comment #3)
> I just tried with "dmesg -W" (follow mode so it prints messages directly)
> and it didn't print anything before the system freeze, and there's nothing
> in the logs, reflecting the experience of the others in the ADB bug report.
That's a waste of time, if the system locks up completely or panics then your
dmesg will never get a chance to run again and print anything. Neither will
Xorg or wayland.
This needs a serial cable or netconsole (never tried it myself but AFAIK people
use it for panics too) or DRM_PANIC or something like that.
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next prev parent reply other threads:[~2026-02-20 9:28 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-18 14:52 [Bug 221103] New: xhci_hcd: System lockup under CPU load during rapid usbfs polling of SuperSpeed root hubs on AMD Ryzen platforms bugzilla-daemon
2026-02-20 7:30 ` [Bug 221103] xhci_hcd: System lockup under CPU load during usbfs polling of USB devices on AMD platforms bugzilla-daemon
2026-02-20 8:31 ` bugzilla-daemon
2026-02-20 9:17 ` Greg KH
2026-02-20 9:16 ` bugzilla-daemon
2026-02-20 9:17 ` bugzilla-daemon
2026-02-20 9:24 ` bugzilla-daemon
2026-02-20 9:26 ` bugzilla-daemon
2026-02-20 9:28 ` bugzilla-daemon [this message]
2026-02-20 9:40 ` bugzilla-daemon
2026-02-20 10:07 ` bugzilla-daemon
2026-02-20 10:17 ` Greg KH
2026-02-20 10:17 ` bugzilla-daemon
2026-02-20 10:21 ` bugzilla-daemon
2026-02-20 11:19 ` bugzilla-daemon
2026-02-20 14:07 ` bugzilla-daemon
2026-02-20 17:18 ` bugzilla-daemon
2026-02-21 1:12 ` bugzilla-daemon
2026-02-23 13:05 ` bugzilla-daemon
2026-02-23 17:52 ` bugzilla-daemon
2026-02-23 22:33 ` bugzilla-daemon
2026-02-24 7:45 ` bugzilla-daemon
2026-02-24 8:52 ` bugzilla-daemon
2026-02-24 10:19 ` bugzilla-daemon
2026-02-24 12:03 ` bugzilla-daemon
2026-02-24 12:21 ` bugzilla-daemon
2026-02-24 15:42 ` bugzilla-daemon
2026-03-08 17:56 ` bugzilla-daemon
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