At the very least you're seeing some errors. In my case, the USB/serial
adapters -uticom, uftdi and uplcom- would fail without notice. Ports
would open, but with no TX/RX. Detaching/reattaching won't bring them
back to live; only rebooting.
If your project has deadline, search for a PCI/ePCI serial board and enjoy!
I have around some of those untrustful interfaces and would like to take
a look at that usb code in a near future.
El 30/11/2011 4:14, Byron Klippert escribis:
I managed to capture trace and ps output from ddb>
Is this a worthy cause to investigate further or should I take the
advice of others and move on to real(tm) hardware. It would be a shame
given the distasteful argument "well it works fine under ...."
ddb> trace
usb_allocmem(d1111800,2,0,d101c740,d101c700) at usb_allocmem+0x14f
ehci_allocm(d1111800,d101c740,2,d079d66e,101c754) at ehci_allocm+0x27
usbd_transfer(d101c700,d1109900,0,1388,d75b3d74) at usbd_transfer+0xbb
usbd_do_request_flags_pipe(d1109900,d1109880,d75b3d74,d75b3dce,4) at
usbd_do_request_flags_pipe+0xbb
usbd_do_request_flags(d1109900,d75b3d74,d75b3dce,4,d75b3d7c) at
usbd_do_request_flags+0x3c
usbd_get_string_desc(d1109900,1,1,d75b3dce,d75b3ecc) at
usbd_get_string_desc+0x5e
usbd_get_string(d1109900,1,d3487487,7f,d0ae9220) at usbd_get_string+0x74
usbd_devinfo_vp(d1109900,d3487487,7f,d3487408,7f) at
usbd_devinfo_vp+0x165
usbd_fill_deviceinfo(d1109900,d3487400,1,1,0) at
usbd_fill_deviceinfo+0x53
usbd_fill_di_task(d3487400,20,d098f0af,0,d54f362c) at
usbd_fill_di_task+0x43
usb_task_thread(d54f362c) at usb_task_thread+0xb1
Bad frame pointer: 0xd0ba0e48
ddb> ps
PID PPID PGRP UID S FLAGS WAIT COMMAND
11732 5036 11732 0 3 0x4000 endtask usbdevs
18220 17676 18220 1000 3 0x4080 kqread tmux
17676 13203 17676 1000 3 0x4080 pause ksh
13203 24243 24243 1000 3 0x180 select sshd
24243 7551 24243 0 3 0x4180 netio sshd
30142 13825 18365 1000 3 0x4080 ttyin more
13825 18365 18365 1000 3 0x4080 pause sh
18365 28650 18365 1000 3 0x4080 wait man
28650 29160 28650 1000 3 0x4080 pause ksh
24368 29160 24368 1000 3 0x4080 ttyin ksh
11053 19990 11053 0 3 0x4080 ttyin vi
19990 29160 19990 1000 3 0x4080 pause ksh
16050 14405 14405 67 3 0x180 netcon httpd
21227 29160 21227 1000 3 0x4080 ttyin ksh
5036 29160 5036 1000 3 0x4080 pause ksh
29160 1 29160 1000 2 0 tmux
30544 14405 14405 67 3 0x180 netcon httpd
1510 14405 14405 67 3 0x180 netcon httpd
16181 14405 14405 67 3 0x180 netcon httpd
15339 1 15339 0 3 0x4080 ttyin getty
8516 14405 14405 67 3 0x180 netcon httpd
276 14405 14405 67 3 0x180 netcon httpd
9801 14405 14405 67 3 0x180 netcon httpd
22942 1 22942 0 3 0x80 select cron
29745 1 29745 0 3 0x180 select inetd
14405 1 14405 0 3 0x80 select httpd
761 1 761 0 3 0x40180 select sendmail
7551 1 7551 0 3 0x80 select sshd
6224 1 6224 0 3 0x80 poll ntpd
15671 25737 15671 83 3 0x180 poll ntpd
25737 1 25737 83 3 0x180 poll ntpd
1898 14567 14567 74 3 0x180 bpf pflogd
14567 1 14567 0 3 0x80 netio pflogd
24868 500 500 73 2 0x180 syslogd
500 1 500 0 3 0x88 netio syslogd
31551 1 31551 77 3 0x180 poll dhclient
13676 1 25110 0 3 0x80 poll dhclient
13732 1 13732 0 3 0x80 mfsidl mount_mfs
5311 1 5311 0 3 0x80 mfsidl mount_mfs
16196 1 16196 0 3 0x80 mfsidl mount_mfs
13 0 0 0 3 0x100200 aiodoned aiodoned
12 0 0 0 3 0x100200 syncer update
11 0 0 0 3 0x100200 cleaner cleaner
10 0 0 0 3 0x100200 reaper reaper
9 0 0 0 3 0x100200 pgdaemon pagedaemon
8 0 0 0 3 0x100200 bored crypto
7 0 0 0 3 0x100200 pftm pfpurge
* 6 0 0 0 7 0x100200 usbtask
5 0 0 0 3 0x100200 usbatsk usbatsk
4 0 0 0 3 0x100200 bored syswq
3 0 0 0 3 0x40100200 idle0
2 0 0 0 3 0x100200 kmalloc kmthread
1 0 1 0 3 0x4080 wait init
0 -1 0 0 3 0x80200 scheduler swapper
On Monday, November 28, 2011 10:43 AM, "Kevin Chadwick"
<ma1l1i...@yahoo.co.uk> wrote:
On Mon, 28 Nov 2011 10:02:41 +0100
Daniel Gracia wrote:
When I unplug the device the system hangs or if
I run usbdevs the system hangs, once hung the watchdog kicks in and
reboots the machine.
Completely unsubstantiated and untested theory but out of interest does
it still hang if you whip out the usb quickly rather than casually?
Is this a joke?
Byron Klippert
byronklipp...@ml1.net
(867) 332-4184
