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Re: kern/47594: Hang during boot on Xen + CURRENT/6.01 + ASUS M2A-VM

The following reply was made to PR kern/47594; it has been noted by GNATS.

From: Manuel Bouyer <>
Subject: Re: kern/47594: Hang during boot on Xen + CURRENT/6.01 + ASUS M2A-VM
Date: Sun, 10 Mar 2013 19:20:59 +0100

 On Mon, Feb 25, 2013 at 07:35:00PM +0000, 
 > (okay, I wasn't able to get the uname -a string, since the kernel can't boot 
 > up, and I've replaced the user and host names, but other than that, it's 
 > accurate)
 > >Description:
 > I experienced a hang during boot up when the SATA disks are being detected, 
 > that is, it would pause at:
 > <... more kernel messages ...>
 > ahcisata0: <text>
 > wd0 <text> <and then a long pause ~1-2minutes>
 > wd1 <text> <and then another long pause ~1-2minutes>
 > wd2 <text> <and then another long pause ~1-2minutes>
 > <and then the boot up just does not advance any further>
 > The bug only occurred when I use the XEN3_DOM0 kernel on this particular 
 > motherboard, ASUS M2A-VM, which has an Athlon 3600 CPU and ATI SB 600 South 
 > Bridge chip. If I use the GENERIC kernel, the hang up does not occur. This 
 > problem is not reproducible on my other ASUS motherboard of the about the 
 > same vintage, ASUS M2NPV-VM, which has some NVIDIA based south bridge chip. 
 > Setting the bios setting to use IDE for the SATA disks vs using the AHCI 
 > interface did not make any difference. 
 Can you post the dmesg of the GENERIC kernel ?
 also, did you look for a BIOS upgrade of this motherboard ?
 Manuel Bouyer <>
      NetBSD: 26 ans d'experience feront toujours la difference

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