Date: Tue, 24 Jan 2012 21:21:11 +0100 From: Marius Strobl <marius@alchemy.franken.de> To: Denny Schierz <linuxmail@4lin.net> Cc: freebsd-sparc64@freebsd.org Subject: Re: Howto debug Kernel problems ? (jail -r -> freeze) Message-ID: <20120124202111.GB7731@alchemy.franken.de> In-Reply-To: <5C638638-3D1A-417E-A574-9BCE51E08C59@4lin.net> References: <5C638638-3D1A-417E-A574-9BCE51E08C59@4lin.net>
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On Mon, Jan 23, 2012 at 01:16:22PM +0100, Denny Schierz wrote: > hi, > > If I stop a jail (v2 with vnet), the jail doesn't completely disappear. "jls" shows the jail as active. If I try to remove the jail with "jail -r <id>" the whole machine freezes. Other users with same options (i386) doesn't have this problem. So how can I debug it? > I'd start with a kernel built with BREAK_TO_DEBUGGER, DDB and KDB enabled. Then when it appears to hang try to break into the debugger by sending a break on the serial console. If that works try to bug virtualization@ and probably bz@ directly for information they want as given that you mention vnet it sounds like you're not seeing this problem without VIMAGE. Marius
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