panic: uhci_abort_xfer: not in process context (was Re: uplcom / ucom problems on RELENG_5)

[Mike Tancsa]

At 12:46 PM 31/03/2005, Hans Petter Selasky wrote:
>On Thursday 31 March 2005 14:49, Mike Tancsa wrote:
> > Unfortunately the box coredumped overnight
> >
> >
> > putc to a clist with no reserved cblocks
> > putc to a clist with no reserved cblocks
> > putc to a clist with no reserved cblocks
> > putc to a clist with no reserved cblocks
> > panic: uhci_abort_xfer: not in process context
> > Uptime: 6h55m12s
> > Dumping 254 MB
> >   16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
> > Dump complete
> > Automatic reboot in 15 seconds - press a key on the console to abort
> > Rebooting...
>
>If you are using FreeBSD5.x/6.x my USB driver will most likely fix your
>problem. The problem is that that the abort function, which can sleep, is
>called from the interrupt handler, which cannot sleep. My USB driver will
>allow this. This is a design problem in the existing USB system.

Hi,
         Everything patches and seems to compile OK.  However, I cannot 
talk to the ucom based serial adaptor I was using before

[releng5-865]# usbdevs -v | grep -v err
Controller /dev/usb0:
addr 127: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x0000), rev 1.00
  port 1 powered
  port 2 powered
Controller /dev/usb1:
addr 126: full speed, power 100 mA, config 1, PL2303 Serial adapter 
(ATEN/IOGEAR UC232A)(0x2303), Prolific Technology(0x067b), rev 2.02
addr 127: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x0000), rev 1.00
  port 1 addr 126: full speed, power 100 mA, config 1, PL2303 Serial 
adapter (ATEN/IOGEAR UC232A)(0x2303), Prolific Technology(0x067b), rev 2.02
  port 2 powered
Controller /dev/usb2:
addr 127: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x0000), rev 1.00
  port 1 powered
  port 2 powered
Controller /dev/usb3:
addr 127: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x0000), rev 1.00
  port 1 powered
  port 2 powered
[releng5-865]#

This is a RELENG_5 box from this morning.

         ---Mike