Re: [ros-dev] Re : Re : Another regression

[Colin Finck]

[e-mail] wrote:
> For that we need Colin to explain Aleksiej how is linux sysreg doing backtrace with /KDSERIAL enabled

In the loop which reads from the serial buffer:

if (strstr(Buffer, "kdb:>"))
{
     ++KdbgHit;

if (KdbgHit == 1)
     {
         /* We hit Kdbg for the first time, get a backtrace for the log */
         safewrite(ttyfd, "bt\r", 3);
         continue;
     }
     else
     {
         /* We hit it yet another time, give up here */
         [Reboot the VM and let rosautotest continue with the next test]
     }
}
else if (strstr(Buffer, "--- Press q"))
{
     /* Send Return to get more data from Kdbg */
     safewrite(ttyfd, "\r", 1);
     continue;
}

And yes, /KDSERIAL is the key here. All these commands are sent over the 
serial line.
I don't remember how it's done exactly, but bootcdregtest should always 
boot into "ReactOS (RosDbg)", which includes the /KDSERIAL parameter.

- Colin