DragonFly BSD
DragonFly bugs List (threaded) for 2004-12
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Re: "vnlru_proc: vnode recycler stopped working!" when doing a make buildkernel

From: Jan Martin Mathiassen <reaper@xxxxxxxxxxx>
Date: Mon, 06 Dec 2004 02:05:18 +0100

Matthew Dillon wrote:

:I thought this was just a problem with the oct 16 copy I had, since I :knew that was when the VFS layer was in severe flux, but I've reproduced :it several times afterwards with an dec 5 copy as well.
:The following appears to semi-reliably trigger the abovementioned error :message:
:make buildworld/quickworld
:make buildkernel KERNCONF=DOOM
:make installkernel KERNCONF=DOOM
:make installworld
:It appears to most commonly happen during buildkernel, but I'm not :entirely sure.
:The message in the subject pops up regularly, everything related to disk :seems to grind to a halt, and I'm unable to shut down the box in a :normal fashion. This is on a playbox, so if you're unable to reproduce :this, I'll be happy to assist in trying to find the bug, given good :enough instructions for how to proceed.

Jan, see if you can get kernel core out of it. You may have to
set sysctl kern.sync_on_panic=0, but then ctl-alt-esc'ing into
the debugger (when the machine is in this locked up state) and
typing 'panic' <return> (probably <return> a second time) should
do it if you have the dumpdev set.

I'm sorry, I'm blind. I completely missed the sync_on_panic part, I'm redoing it now, with sync_on_panic=0.

I'm assuming the core file'll be too big to attach in a mail, so I'll get back to you with an URL you can download it from, unless you've got an FTP server I should upload to?

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