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Groups > linux.debian.kernel > #60297

Bug#891036: The problem is related to the number of ports created in vhci_hcd.0

From Wojtek Zabolotny <W.Zabolotny@elka.pw.edu.pl>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#891036: The problem is related to the number of ports created in vhci_hcd.0
Date 2018-02-22 14:40 +0100
Message-ID <vlZgm-5tv-5@gated-at.bofh.it> (permalink)
References <vlH06-1O8-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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When I load the vhci-hcd driver in version 4.14, and then run "usbip --debug port", I get:

[...]
usbip: debug: names.c:428:[parse] line 18067 subclass fe:01 Device Firmware Update
usbip: debug: names.c:428:[parse] line 18068 subclass fe:02 IRDA Bridge
usbip: debug: names.c:428:[parse] line 18069 subclass fe:03 Test and Measurement
usbip: debug: names.c:461:[parse] line 18070 protocol fe:03:01 TMC
usbip: debug: names.c:461:[parse] line 18071 protocol fe:03:02 USB488
usbip: debug: names.c:374:[parse] line 18072 class ff Vendor Specific Class
usbip: debug: names.c:428:[parse] line 18073 subclass ff:ff Vendor Specific Subclass
usbip: debug: names.c:461:[parse] line 18074 protocol ff:ff:ff Vendor Specific Protocol
libusbip: debug: vhci_driver.c:264:[usbip_vhci_driver_open] available ports: 496
libusbip: error: port number exceeds 128
usbip: error: open vhci_driver
usbip: error: list imported devices

When i check /sys/devices/platform/vhci_hcd.0/nports it indeed contains 496 .
In other /sys/devices/platform/vhci_hcd.* directories there is no nports attribute at all.

-- 
Wojciech M Zabolotny, PhD
Institute of Electronic Systems
Faculty of Electronics and Information Technology
Warsaw University of Technology

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Bug#891036: libusbip: error: port number exceeds 128 wzab <wzab@ise.pw.edu.pl> - 2018-02-21 19:10 +0100
  Bug#891036: More details - the problem is associated with the vhci-hcd driver. wzab <wzab@ise.pw.edu.pl> - 2018-02-21 20:00 +0100
  Bug#891036: Problem occurs in 4.13 and 4.14, but not in 4.12 "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-21 20:30 +0100
  Bug#891036: Problem still persists in kernel 4.15 "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-21 21:10 +0100
  Bug#891036: Even after updating "usbip" to usbip_2.0+4.15.4-1_amd64.deb problem remains "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-21 21:20 +0100
  Bug#891036: The problem is related to the number of ports created in vhci_hcd.0 Wojtek Zabolotny <W.Zabolotny@elka.pw.edu.pl> - 2018-02-22 14:40 +0100
    Bug#891036: The problem is related to the number of ports created in vhci_hcd.0 "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-22 23:20 +0100
      Bug#891036: The problem is related to the number of ports created in vhci_hcd.0 "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-22 23:50 +0100
        Bug#891036: Workaround found, the problem is with Debian configuration of kernel "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-23 01:10 +0100
        Bug#891036: Proposal - how to make usbip more resistant to misconfiguration "wzabolot@elektron.elka.pw.edu.pl" <wzabolot@elektron.elka.pw.edu.pl> - 2018-02-23 02:10 +0100
  Bug#891036: libusbip: error: port number exceeds 128 Gergely Risko <risko@debian.org> - 2018-05-22 18:20 +0200

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