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Re: port-xen/47720: Kernel Panic on dom0 shutdown or reboot when using RAIDframe
The following reply was made to PR port-xen/47720; it has been noted by GNATS.
From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-xen-maintainer%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost,
netbsd-bugs%NetBSD.org@localhost, kimtwain0%gmail.com@localhost
Subject: Re: port-xen/47720: Kernel Panic on dom0 shutdown or reboot when
using RAIDframe
Date: Sat, 6 Apr 2013 11:21:47 +0200
On Fri, Apr 05, 2013 at 11:15:01PM +0000, kimtwain0%gmail.com@localhost wrote:
> [...]
> >How-To-Repeat:
> 1. Install NetBSD 6.0.1 on wd0
> 2. Create a RAIDframe array (raid1) using wd1 and wd2
> 3. Install xentools41, xenkernel41 and extract netbsd-XEN3_DOM0.gz (version
> 6.0.1) as /netbsd.dom0
> 4. Add
> "xenbackendd=YES
> xend=YES
> xendomains=YES
> xenwatchdog=YES" to /etc/rc.conf
> 5. Create a new entry in /boot.cfg menu=Xen:load /netbsd.dom0
> console=pc;multiboot /usr/pkg/xen41-kernel/xen.gz dom0_mem=256M
> 6. Reboot into xen
> 7. Issue a shutdown or a reboot
All my Xen servers have multiple raidframe on wd?, and I've never
seen this, so there must be something else.
On Sat, Apr 06, 2013 at 01:35:02AM +0000, Kim Twain wrote:
> kernel: page fault trap, code=0
> stopped in pid 34.1 (halt) at netbsd:bus_space_read_4+0x8: movl 0(%rdx),%eax
> bus_space_read_4() at netbsd:bus_space_read_4+0x8
> Xresume_xenev6() t netbsd:Xresume_xenev6+0x47
> --- interrupt ---
Xresume_xenev6() doesn't call bus_space_read_4(), there is other
functions in between, and this is the information missing.
Can you try to rebuild the kernel with -O0, and maybe some -fno-...
options, like -fno-optimize-sibling-calls
--
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
--
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