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 09:24:03 +0000 [thread overview]
Message-ID: <bug-221103-208809-Cvycv8MWBk@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 #5 from Michał Pecio (michal.pecio@gmail.com) ---
Actually, it may still be a problem with xhci_hcd because I found that simply
opening the USBFS file causes some xhci_hcd debug logs.
But this ioctl() looks like meaningless noise, the way you call it it's always
supposed to fail, either with or without root.
Does your system still crash if you remove the ioctl() and simply open and
close the usbfs file?
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next prev parent reply other threads:[~2026-02-20 9:24 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 [this message]
2026-02-20 9:26 ` bugzilla-daemon
2026-02-20 9:28 ` bugzilla-daemon
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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