RE: [Xen-devel] BUG at domain.c:144

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> 1.1784 - BUGs
> 1.1779 - BUGs
> 1.1777 - BUGs
> 1.1774 - boots correctly
> 
> There are only four changesets between 1.1774 and 1.1777, and 
> of course one of them is huge -- the 2.6.11 merge.  Also, the 
> objdump didn't tell me anything useful.  I have the objdump 
> and the stack trace if anyone wants them.  I think I'm at the 
> end of my abilities to narrow it down any further.

Thanks Chris, this is very useful.

It would be helpful if you could use a debug=y build of Xen and add a
show_guest_stack() just before the BUG(). Further, it might be revealing
to hack the following into linux-2.6.11-xen0/kernel/printk.c:vprintk to
see how far the dom0 boot it is getting.

        /* Emit the output into the temporary buffer */
        printed_len = vscnprintf(printk_buf, sizeof(printk_buf), fmt,
args);
+ HYPERVISOR_console_io( CONSOLEIO_write, strlen(printk_buf),
printk_buf))

Is there anything 'unusual' about the machine you're using?

Thanks,
Ian

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