The following reply was made to PR port-xen/29775; it has been noted by GNATS.

From: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
To: tech-kern@NetBSD.org
Cc: port-xen-maintainer@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org, gnats-bugs@NetBSD.org
Subject: Re: port-xen/29775: Cannot use a vnode disk for domU
Date: Thu, 24 Mar 2005 07:53:01 +0900

 > With:
 > panic: lockmgr: no context
 > It is in vndstrategy:
 > 		vn_lock(vnd->sc_vp, LK_EXCLUSIVE | LK_RETRY | LK_CANRECURSE);
 > 
 > This means that I/O on the vnd block device expect to be called from
 > a process context, while the xbd backend calls it from interrupt context.
 
 do you have a backtrace?
 
 YAMAMOTO Takashi