Hello. I have problems using USB to RS232 converter under FreeBSD 6.3-STABLE when connecting to any Cisco gear over serial link. I connect my adapter to notebook and dmesg output looks like this one: ucom0: Prolific Technology Inc. USB-Serial Controller D, rev 1.10/4.00, addr 2 I have also following modules loaded: 8 1 0xc0c17000 3540 umodem.ko# cu -l /dev/ttyU0 Connected 9 4 0xc0c1b000 3208 ucom.ko 10 1 0xc0c1f000 2f54 uplcom.ko 13 1 0xc0c2f000 3384 ubsa.ko Now I try to connect to Cisco box: # cu -l /dev/ttyU0 Connected And terminal stalls- nothing happens- it ignores keyboard completely- sometimes it works but then suddenly lost keyboard interactivity. I tried from KDE Konsole, from plain tcsh command line, sometimes I am able to gain Cisco command line but 90% of times it just hangs. I got two usb2serial adapters: Trendnet TU-S9 and Manhattan 205146. Same converters works just fine under Windows and Linux (drivers cd even got RedHat 7, 8 and 9 versions source code drivers- http://www.manhattan-products.com/driver-usb-rs232.shtml).
On Saturday 05 April 2008 23:48:59 you wrote:> On Sat, 5 Apr 2008, Andrei Kolu wrote: > > I have problems using USB to RS232 converter under FreeBSD 6.3-STABLE > > when connecting to any Cisco gear over serial link. I connect my adapter > > to notebook and dmesg output looks like this one: > > > > ucom0: Prolific Technology Inc. USB-Serial Controller D, rev 1.10/4.00, > > addr 2 > > > > I have also following modules loaded: > > > > 8 1 0xc0c17000 3540 umodem.ko# cu -l /dev/ttyU0 > > Connected > > > > 9 4 0xc0c1b000 3208 ucom.ko > > 10 1 0xc0c1f000 2f54 uplcom.ko > > 13 1 0xc0c2f000 3384 ubsa.ko > > > > Now I try to connect to Cisco box: > > > > # cu -l /dev/ttyU0 > > Connected > > Use /dev/cuaU0 instead. > > -Warren Block * Rapid City, South Dakota USAThere is no difference if I connect through /dev/ttyU0 or /dev/cuaU0 and even through ttyU1 or cuaU1 (when second serial converter is connected)- same problem. I tried on other computer with FreeBSD 6.1 and 7.0-STABLE snapshot from march- same results. Something is broken on FreeBSD side- strange thing is that when I turn power down on cisco box and turn in on again then I see scrolling text from cisco gear but there is no feedback to keyboard activity. How to debug this issue? Andrei
On Sat, 5 Apr 2008, Andrei Kolu wrote:> I have problems using USB to RS232 converter under FreeBSD 6.3-STABLE when > connecting to any Cisco gear over serial link. I connect my adapter to > notebook and dmesg output looks like this one: > > ucom0: Prolific Technology Inc. USB-Serial Controller D, rev 1.10/4.00, addr 2 > > I have also following modules loaded: > > 8 1 0xc0c17000 3540 umodem.ko# cu -l /dev/ttyU0 > Connected > > 9 4 0xc0c1b000 3208 ucom.ko > 10 1 0xc0c1f000 2f54 uplcom.ko > 13 1 0xc0c2f000 3384 ubsa.ko > > Now I try to connect to Cisco box: > > # cu -l /dev/ttyU0 > ConnectedUse /dev/cuaU0 instead. -Warren Block * Rapid City, South Dakota USA
On Sunday 06 April 2008 00:24:38 Andrei Kolu wrote:> On Saturday 05 April 2008 23:48:59 you wrote: > > On Sat, 5 Apr 2008, Andrei Kolu wrote: > > > I have problems using USB to RS232 converter under FreeBSD 6.3-STABLE > > > when connecting to any Cisco gear over serial link. I connect my > > > adapter to notebook and dmesg output looks like this one: > > > > > > ucom0: Prolific Technology Inc. USB-Serial Controller D, rev 1.10/4.00, > > > addr 2 > > > > > > I have also following modules loaded: > > > > > > 8 1 0xc0c17000 3540 umodem.ko# cu -l /dev/ttyU0 > > > Connected > > > > > > 9 4 0xc0c1b000 3208 ucom.ko > > > 10 1 0xc0c1f000 2f54 uplcom.ko > > > 13 1 0xc0c2f000 3384 ubsa.ko > > > > > > Now I try to connect to Cisco box: > > > > > > # cu -l /dev/ttyU0 > > > Connected > > > > Use /dev/cuaU0 instead. > > > > -Warren Block * Rapid City, South Dakota USA > > There is no difference if I connect through /dev/ttyU0 or /dev/cuaU0 and > even through ttyU1 or cuaU1 (when second serial converter is connected)- > same problem. I tried on other computer with FreeBSD 6.1 and 7.0-STABLE > snapshot from march- same results. > > Something is broken on FreeBSD side- strange thing is that when I turn > power down on cisco box and turn in on again then I see scrolling text from > cisco gear but there is no feedback to keyboard activity. How to debug this > issue? >Some progress on debugging! Just kiddin... I removed converter from USB and FreeBSD 7.0 kernel dumped following information: ucom0: ucomreadcb: IOERROR ucom0: at uhub1 port 1 (addr 2) disconnected ucom0: uplcom_set_line_status: STALLED Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0xb0 fault code = supervisor read data, page not present instruction pointer = 0x8:0xffffffff80446f72 stack pointer = 0x10:0xffffffffae796a00 frame pointer = 0x10:0xffffff000172b400 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 876 (cu) trap number = 12 panic: page fault cpuid: 1 Uptime: 8m41s Physical memory: 2802 MB Dumping 126 MB: 111 95 79 63 47 31 15 Dump complete
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