2.6.3-rc2 failure - was: Re: [uml-devel] Kernel idles in loop after loading IPv4

["roland" <for_spam@gmx.de>]

hi !
concerning the uml "hang" after  "NET: Registered protocol family 2":

after some investigation i found, that the problem seems to have been introduced with
uml-patch-2.6.0-1 (at http://prdownloads.sourceforge.net/user-mode-linux/uml-patch-2.6.0-1.bz2)

uml-patch-2.6.0-test9-1 (at http://prdownloads.sourceforge.net/user-mode-linux/uml-patch-2.6.0-test9-1.bz2?download),
in conjunction with minor compile-fix http://people.0x63.nu/~andersg/uml-minor-fixes.diff works nicely for me.

seems there has been a major change (lots of merges?) in uml-patch-2.6.0-1 because it`s much more bigger (around 2x) than
uml-patch-2.6.0-test9-1

btw:
i use Bryan O'Sullivan`s skas patch on my host kernel. see: http://sourceforge.net/mailarchive/message.php?msg_id=5840691
since this patch isn`t based on steven james patch (which stephen williams patch is based of), it isn`t a skas issue, but a compiler
or host-fs issue !? i`m on suse9 host.

any clues?

regards
roland





----- Original Message ----- 
From: "roland" <for_spam@gmx.de>
To: "Phil Nadeau" <phil@innercite.com>; <user-mode-linux-devel@lists.sourceforge.net>
Sent: Saturday, February 14, 2004 10:45 PM
Subject: Re: [uml-devel] Kernel idles in loop after loading IPv4


> hi !
> i have the same problem.
> my uml is 2.6.3-rc2 with jeff`s latest uml patch.
> host is 2.6.0-test11 with skas patch
> with 2.6.0-test11 + uml patch i didn`t have such problem.
> any hints?
>
> regards
> roland
>
>
> ----- Original Message ----- 
> From: "Phil Nadeau" <phil@innercite.com>
> To: <user-mode-linux-devel@lists.sourceforge.net>
> Sent: Tuesday, January 27, 2004 9:54 PM
> Subject: [uml-devel] Kernel idles in loop after loading IPv4
>
>
> > Hello UML developers,
> >
> > I'm trying to use UML to set up a simulator for a high-availability
> > cluster. I encounter the following unexpected behavior -
> >
> > On any kernel that I compile with IPv4 support, the kernel will stop
> > intializing drivers after loading IPv4 support. The last message I see
> > from the kernel is:
> > NET: Registered protocol family 2
> >
> > Compiling with debug allows me to single-step through the kernel. I've
> > traced execution from inet_init(), to synchronize_net(), to
> > synchronize_kernel(), to a call to wait_for_completion(), to
> > switch_to_tt(), after which the kernel spends all its time in the idle
> > loop. This happens whether I'm using SKAS or TT mode.
> >
> > Host kernel is 2.6.1 with Stephen William's 2.6.1 SKAS patch (thanks
> > Stephen). Guest kernel is 2.6.1 with the latest patch from Sourceforge
> > (January 15th), without modules, and with nearly everything disabled at
> > compile except core functionality and IPv4.
> >
> > I've tried to find similar cases in the FAQ's and the list archives, but
> > I'm not seeing anything. It seems like the kernel is waiting for an
> > event related to IPv4 initialization that it never gets, but I'm not
> > familiar enough with the kernel proper to know what that might be. Does
> > anyone have any ideas?
> >
> > Thanks in advance.
> >
> > -- 
> > Phil Nadeau
> > Software Services Manager
> > phil.nadeau@innercite.com
> > (916)932-3200, (800)921-5513
> >
> >
> >
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> >



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