Re: kern/51357: cu(1) fails to connect, kills networking and is unkillable

[Roy Marples <roy%marples.name@localhost>]

The following reply was made to PR kern/51357; it has been noted by GNATS.

From: Roy Marples <roy%marples.name@localhost>
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/51357: cu(1) fails to connect, kills networking and is
 unkillable
Date: Mon, 25 Jul 2016 15:31:03 +0100

 On 25/07/2016 13:15, Martin Husemann wrote:
 >  On Mon, Jul 25, 2016 at 11:55:00AM +0000, roy%marples.name@localhost wrote:
 >  > $ cu -s 115200 -l ttyU2
 >  
 >  This works fine on most machines in -current, so this has to be something
 >  with your concrete USB dongle, the USB host controller or interrupt
 >  routing.
 >  
 >  Please provide more details.
 
 The USB <-> RS232 connector is a StarTech ICUSB221F.
 
 ehci1: handing over full speed device on port 2 to uhci3
 uftdi0 at uhub4 port 2
 uftdi0: FTDI FT232R USB UART, rev 2.00/6.00, addr 2
 ucom2 at uftdi0 portno 1
 
 $ dmesg | grep uhub4
 uhub4 at usb4: vendor 8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub4: 2 ports with 2 removable, self powered
 uftdi0 at uhub4 port 2
 
 
 $ dmesg | grep ehci
 ehci0 at pci0 dev 26 function 7: vendor 8086 product 293c (rev. 0x03)
 ehci0: interrupting at ioapic0 pin 23
 ehci0: EHCI version 1.0
 ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
 usb3 at ehci0: USB revision 2.0
 ehci1 at pci0 dev 29 function 7: vendor 8086 product 293a (rev. 0x03)
 ehci1: interrupting at ioapic0 pin 19
 ehci1: EHCI version 1.0
 ehci1: companion controllers, 2 ports each: uhci3 uhci4 uhci5
 usb7 at ehci1: USB revision 2.0
 ehci0: handing over full speed device on port 3 to uhci1
 ehci0: handing over full speed device on port 4 to uhci1
 ehci1: handing over full speed device on port 2 to uhci3
 
 $ dmesg | grep uhci
 uhci0 at pci0 dev 26 function 0: vendor 8086 product 2937 (rev. 0x03)
 uhci0: interrupting at ioapic0 pin 20
 usb0 at uhci0: USB revision 1.0
 uhci1 at pci0 dev 26 function 1: vendor 8086 product 2938 (rev. 0x03)
 uhci1: interrupting at ioapic0 pin 21
 usb1 at uhci1: USB revision 1.0
 uhci2 at pci0 dev 26 function 2: vendor 8086 product 2939 (rev. 0x03)
 uhci2: interrupting at ioapic0 pin 22
 usb2 at uhci2: USB revision 1.0
 ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
 uhci3 at pci0 dev 29 function 0: vendor 8086 product 2934 (rev. 0x03)
 uhci3: interrupting at ioapic0 pin 16
 usb4 at uhci3: USB revision 1.0
 uhci4 at pci0 dev 29 function 1: vendor 8086 product 2935 (rev. 0x03)
 uhci4: interrupting at ioapic0 pin 17
 usb5 at uhci4: USB revision 1.0
 uhci5 at pci0 dev 29 function 2: vendor 8086 product 2936 (rev. 0x03)
 uhci5: interrupting at ioapic0 pin 18
 usb6 at uhci5: USB revision 1.0
 ehci1: companion controllers, 2 ports each: uhci3 uhci4 uhci5
 ehci0: handing over full speed device on port 3 to uhci1
 ehci0: handing over full speed device on port 4 to uhci1
 ehci1: handing over full speed device on port 2 to uhci3
 
 $ pcictl pci0 list
 000:00:0: Intel 82GM45 Host Bridge (host bridge, revision 0x07)
 000:02:0: Intel 82GM45 Integrated Graphics Device (VGA display, revision
 0x07)
 000:02:1: Intel 82GM45 Integrated Graphics Device (miscellaneous
 display, revision 0x07)
 000:03:0: Intel product 2a44 (miscellaneous communications, revision 0x07)
 000:03:3: Intel 82GM45 KT (serial communications, 16550-compat, revision
 0x07)
 000:25:0: Intel 82801I Mobile (AMT) LAN Controller (ethernet network,
 revision 0x03)
 000:26:0: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:26:1: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:26:2: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:26:7: Intel 82801I USB EHCI Controller (USB serial bus, EHCI,
 revision 0x03)
 000:27:0: Intel 82801I High Definition Audio Controller (mixed mode
 multimedia, revision 0x03)
 000:28:0: Intel 82801I PCI Express Port #1 (PCI bridge, revision 0x03)
 000:28:1: Intel 82801I PCI Express Port #2 (PCI bridge, revision 0x03)
 000:28:3: Intel 82801I PCI Express Port #4 (PCI bridge, revision 0x03)
 000:28:4: Intel 82801I PCI Express Port #5 (PCI bridge, revision 0x03)
 000:29:0: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:29:1: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:29:2: Intel 82801I USB UHCI Controller (USB serial bus, UHCI,
 revision 0x03)
 000:29:7: Intel 82801I USB EHCI Controller (USB serial bus, EHCI,
 revision 0x03)
 000:30:0: Intel 82801BAM Hub-PCI Bridge (PCI bridge, subtractive decode,
 revision 0x93)
 000:31:0: Intel 82801IEM LPC Interface Bridge (ISA bridge, revision 0x03)
 000:31:2: Intel 82801I Mobile AHCI SATA Controller with 4 ports (SATA
 mass storage, AHCI 1.0, revision 0x03)
 000:31:3: Intel 82801I SMBus Controller (SMBus serial bus, revision 0x03)
 003:00:0: Intel WiFi Link 5100 (miscellaneous network)
 021:00:0: Ricoh 5C476 PCI-CardBus Bridge (CardBus bridge, revision 0xba)
 021:00:1: Ricoh 5C832 PCI-SD/MMC/MMC+/MS/xD/Firewire (IEEE1394 serial
 bus, OpenHCI, revision 0x04)
 021:00:2: Ricoh 5C822 PCI-CardBus Bridge/MS/SD/MMC/SC (SD Host
 Controller system, revision 0x21)
 021:00:3: Ricoh 5C843 PCI-CardBus Bridge/SD/MMC/MMC+/MS/xD/Firewire
 (miscellaneous system, revision 0x11)
 021:00:4: Ricoh 5C592 PCI-CardBus Bridge/MS/SD/Firewire (miscellaneous
 system, revision 0x11)
 021:00:5: Ricoh xD-Picture Card Controller (miscellaneous system,
 revision 0x11)
 
 Is that enough information?
 
 Roy