Thread (30 messages) flat view 30 messages, 5 authors, 1d ago

Re: [PATCH] xhci: sideband: check vdev liveness before removing endpoints on unregister

From: Michal Pecio <hidden>
Date: 2026-09-15 08:01:44
Also in: lkml

On Tue, 15 Sep 2026 07:45:50 +0000, 胡连勤 wrote:
Unfortunately, no. The reproduction rate is very low, and we have
not yet found a stable way to reproduce it — it requires the
device to be in a specific state where the port is disabled after
autosuspend resume, which happens rarely in the field.
Why are offloaded devices being suspended at all? Obviously, no
"sideband entity" can be using a suspended device, so it seems that:

- if the device is unused and meant to be suspended, sideband can be
  removed before suspending
- if the device becomes suspended while in use, obviously it's a bug

Regards,
Michal
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