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commit d920a2ed8620be04a3301e1a9c2b7cc1de65f19d upstream. SanDisks USB3 storage may disapper after system reboot: usb usb2-port3: link state change xhci_hcd 0000:00:14.0: clear port3 link state change, portsc: 0x2c0 usb usb2-port3: do warm reset, port only xhci_hcd 0000:00:14.0: xhci_hub_status_data: stopping usb2 port polling xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x2b0, return 0x2b0 usb usb2-port3: not warm reset yet, waiting 50ms xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x2f0, return 0x2f0 usb usb2-port3: not warm reset yet, waiting 200ms ... xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x6802c0, return 0x7002c0 usb usb2-port3: not warm reset yet, waiting 200ms xhci_hcd 0000:00:14.0: clear port3 reset change, portsc: 0x4802c0 xhci_hcd 0000:00:14.0: clear port3 warm(BH) reset change, portsc: 0x4002c0 xhci_hcd 0000:00:14.0: clear port3 link state change, portsc: 0x2c0 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x2c0, return 0x2c0 usb usb2-port3: not enabled, trying warm reset again... This is due to the USB device still cause port change event after xHCI is shuted down: xhci_hcd 0000:38:00.0: // Setting command ring address to 0xffffe001 xhci_hcd 0000:38:00.0: xhci_resume: starting usb3 port polling. xhci_hcd 0000:38:00.0: xhci_hub_status_data: stopping usb4 port polling xhci_hcd 0000:38:00.0: xhci_hub_status_data: stopping usb3 port polling xhci_hcd 0000:38:00.0: hcd_pci_runtime_resume: 0 xhci_hcd 0000:38:00.0: xhci_shutdown: stopping usb3 port polling. xhci_hcd 0000:38:00.0: // Halt the HC xhci_hcd 0000:38:00.0: xhci_shutdown completed - status = 1 xhci_hcd 0000:00:14.0: xhci_shutdown: stopping usb1 port polling. xhci_hcd 0000:00:14.0: // Halt the HC xhci_hcd 0000:00:14.0: xhci_shutdown completed - status = 1 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x1203, return 0x203 xhci_hcd 0000:00:14.0: set port reset, actual port 2-3 status = 0x1311 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x201203, return 0x100203 xhci_hcd 0000:00:14.0: clear port3 reset change, portsc: 0x1203 xhci_hcd 0000:00:14.0: clear port3 warm(BH) reset change, portsc: 0x1203 xhci_hcd 0000:00:14.0: clear port3 link state change, portsc: 0x1203 xhci_hcd 0000:00:14.0: clear port3 connect change, portsc: 0x1203 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x1203, return 0x203 usb 2-3: device not accepting address 2, error -108 xhci_hcd 0000:00:14.0: xHCI dying or halted, can't queue_command xhci_hcd 0000:00:14.0: Set port 2-3 link state, portsc: 0x1203, write 0x11261 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x1263, return 0x263 xhci_hcd 0000:00:14.0: set port reset, actual port 2-3 status = 0x1271 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x12b1, return 0x2b1 usb usb2-port3: not reset yet, waiting 60ms ACPI: PM: Preparing to enter system sleep state S5 xhci_hcd 0000:00:14.0: Get port status 2-3 read: 0x12f1, return 0x2f1 usb usb2-port3: not reset yet, waiting 200ms reboot: Restarting system The port change event is caused by LPM transition, so disabling LPM at shutdown to make sure the device is in U0 for warmboot. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20240305065140.66801-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| README | ||
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.