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[Xen-devel] ttyS0: LSR safety check engaged!


  • To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "kyle.ma83" <kyle.ma83@xxxxxxxxx>
  • Date: Wed, 2 Sep 2009 17:00:03 +0800
  • Delivery-date: Wed, 02 Sep 2009 02:00:57 -0700
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Hi everyone
 
When I use xen-3.2.0 and linux-2.6.18 domian0 and debug xen with gdb stub, I failed.
 
dmesg |grep tty always get :
 
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:06: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
ttyS0: LSR safety check engaged!
ttyS0: LSR safety check engaged!
ttyS0: LSR safety check engaged!
ttyS0: LSR safety check engaged!
 
my grub is :
 
kernel          /boot/xen-3.2.0.gz hap com1=115200,8n1 console=com1H gdb=com1L
module          /boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro xencons=off
module          /boot/initrd.img-2.6.18.8-xen
 
I use a DELL PowerEdge server with Intel cpu, I don't what is the reason. when I use the same server and boot linux kernel , and no problem .
 
In grub I change many times with xencons=off or with nothing etc. but the problem is the same ttyS0: LSR safety check engaged!
 
Could anyone help me on this?  I really appreciate much.
2009-09-02

kyle.ma83
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