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| Filename | Latest commit message | Latest commit date |
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ec0cddcc24
commit 7faac1953ed1f658f719cdf7bb7303fa5eef822c upstream. Make xhci_disable_slot() synchronous, thus ensuring it, and xhci_free_dev() calling it return after xHC controller completes the disable slot command. Otherwise the roothub and xHC host may runtime suspend, and clear the command ring while the disable slot command is being processed. This causes a command completion mismatch as the completion event can't be mapped to the correct command. Command ring gets out of sync and commands time out. Driver finally assumes host is unresponsive and bails out. usb 2-4: USB disconnect, device number 10 xhci_hcd 0000:00:0d.0: ERROR mismatched command completion event ... xhci_hcd 0000:00:0d.0: xHCI host controller not responding, assume dead xhci_hcd 0000:00:0d.0: HC died; cleaning up Cc: <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20211210141735.1384209-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.