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[Xen-bugs] [Bug 635] New: With xen no serial ports are working

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Subject: [Xen-bugs] [Bug 635] New: With xen no serial ports are working
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Date: Wed, 03 May 2006 12:53:01 -0700
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           Summary: With xen no serial ports are working
           Product: Xen
           Version: 3.0 (general)
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Unspecified
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: flo@xxxxxxxxxxxxxxx

When i boot the xen enabled kernel, then setserial does not find any serial
ports. The "normal" kernel finds the serial ports. If i boot the xen kernel
with serial console, then the communication on the serial line stops around the

<4>Calibrating delay using timer specific routine.. 7610.84 BogoMIPS
<6>Security Framework v1.0.0 initialized
<6>SELinux:  Disabled at boot.

Without xen i see the lines:

<6>Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
<4>ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
<4>ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

and later:
Configuring serial ports...
/dev/ttyS0 at 0x03f8 (irq = 4) is a 16550A
/dev/ttyS1 at 0x02f8 (irq = 3) is a 16550A
Configured serial ports

with xen i see:
Configuring serial ports...
Configured serial ports

That's all.

The machine is a FSC RX300 S2. Here are the technical details:

OS is Suse 10.0 with latest patches (did not test this issue without patches).
Kernel is 2.6.13-15.8-xen.
Unfortunately i have a problem with networking too (looks like bug 62) so i
need that serial line!

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