Hi,

We are using "VScom PCI-200L" and "Moxa Technologies, C168H/PCI" -cards for 
serial ports. After installing 7.0 the ports or the connection to the port hang 
after a while. A "while" could be half-a-day or 10 minutes.
There is no error message to be seen anywhere.

Not all ports hang at the same time, it could be just one or two of them. 
Earlier versions (6.2-RELEASE) work just fine.
The ports have different devicenames after 7.0, in 6.2 they were /dev/cuad4-7, 
now they are /dev/cuau0-3 (uart?)

dmesg-output considering the card:
puc0: <VScom PCI-200L> port 
0xbc00-0xbc07,0xb800-0xb807,0xb400-0xb407,0xb000-0xb007 mem 
0xfe5ffc00-0xfe5ffc3f irq 21 at device 0.0 on pci1
puc0: [FILTER]
uart0: <16550 or compatible> on puc0
uart0: [FILTER]
uart1: <16550 or compatible> on puc0
uart1: [FILTER]

the same in 6.2:
puc0: <VScom PCI-200L> port 0xbc00-0xbc07,0xb800-0xb807,0xb400-0xb407,0xb000-
0xb007 mem 0xfe5ffc00-0xfe5ffc3f irq 21 at device 0.0 on pci1
sio4: <VScom PCI-200L> on puc0
sio4: type 16550A
sio4: unable to activate interrupt in fast mode - using normal mode
sio5: <VScom PCI-200L> on puc0
sio5: type 16550A
sio5: unable to activate interrupt in fast mode - using normal mode

We have over 20 installations, now two of them have been upgraded to 7.0 with 
mentioned side effects.

Yours,
Timo Rikkonen
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