Date: Sat, 23 Aug 2008 11:31:09 +0100 From: "Brad Pitney" <pitney.brad@googlemail.com> To: "Kip Macy" <kmacy@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: [XEN] xs_single device/vbd xs_talkv read_reply panic: bad stray interrupt Message-ID: <3dd203290808230331m7dcc314ve40988eba1b0a42@mail.gmail.com> In-Reply-To: <3c1674c90808221813w3874230dh945a6579819e76fd@mail.gmail.com> References: <3dd203290808221612r338afd77h7397595eb48ce6a7@mail.gmail.com> <3c1674c90808221625gda3be13gf63a71666876cfef@mail.gmail.com> <3dd203290808221808m2cff2e50tef3b3407628dea17@mail.gmail.com> <3c1674c90808221813w3874230dh945a6579819e76fd@mail.gmail.com>
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On Sat, Aug 23, 2008 at 2:13 AM, Kip Macy <kmacy@freebsd.org> wrote:
> There is no way for a device to show up as xbd0 at this time. Next
> time you see the mount root prompt type ?.
>
> From my config:
> <...>
> disk = [ 'file:/home/kmacy/xen/mdroot-7.0,hda,w' ]
> <...>
> extra += ",vfs.root.mountfrom=ufs:/dev/xbd768a"
> <...>
sorry, I sent the mail before finishing:
once I type ? at the mount root prompt type, I get:
mountroot> ?
List of GEOM managed disk devices:
xbd1cs1d xbd1cs1c xbd1cs1a xbd1cs1 xbd1s1d xbd1s1c xbd1s1a xbd1c
xbd1a xbd1s1 xbd3 xbd2 xbd1
Manual root filesystem specification:
<fstype>:<device> Mount <device> using filesystem <fstype>
eg. ufs:da0s1a
? List valid disk boot devices
<empty line> Abort manual input
mountroot> bad stray interrupt
sometimes that 'bad stray interrupt' pops up.
once I type ufs:xbd1s1a I then get:
mountroot> ufs:xbd1bad stray interrupts1a
Trying to mount root from ufs:xbd1s1a
panic: vm_fault: fault on nofault entry, addr: c0877000
cpuid = 0
KDB: enter: panic
[thread pid 12 tid 100024 ]
Stopped at kdb_enter+0x3a: movl $0,kdb_why
db> bt
Tracing pid 12 tid 100024 td 0xc16a8cc0
kdb_enter(c0340eed,c0340eed,c0360502,cbe448ec,0,...) at kdb_enter+0x3a
panic(c0360502,c0877000,1,cbe44a0c,cbe449fc,...) at panic+0x12c
vm_fault(c0871000,c0877000,1,0,c0877fd0,...) at vm_fault+0x178
dblfault_handler() at dblfault_handler+0x551
--- trap 0x17, eip = 0, esp = 0, ebp = 0 ---
db>
I tried both ufs:xbd1s1a and ufs:xbd1cs1a, I have managed to get
further than this.
I actually need to redo the file image as it is completely
un-configured in the sense of no fstab, etc.
to create the image I did:
# cd /tmp && truncate -s +1G xbd0
# mdconfig -a -f xbd0
# fdisk -i /dev/md0
# disklabel -wB /dev/md0s1 && disklabel -e /dev/md0s1
# mount /dev/md0s1a /dist
# cd /usr/src && make world distribution DESTDIR=/dist
# umount /dist && mdconfig -d -u 0
then transferred to my Xen dom0.
my config:
##
name = "bldr-fbsd32"
kernel = "/var/xen/" + name + "/kernel"
disk = [ 'file://var/xen/' + name + '/xbd0,0x01,w',
'file://var/xen/' + name + '/xbd1,0x02,w',
'file://var/xen/' + name + '/xbd2,0x03,w' ]
vif = [ 'mac=00:bd:c4:12:00:ef,bridge=bridge0' ]
memory = 256
on_crash = 'preserve'
#extra = "boot_verbose"
extra = "boot_single"
extra += "vfs.root.mountfrom=ufs:/dev/xbd1s1a"
extra += ",kern.hz=100"
thanks
--
Best regards,
Brad
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