Displaying 20 results from an estimated 3000 matches similar to: "stupid trick of the day (fried polycom)"
2005 Oct 03
2
Hang-up Detect - Yet Again
I realise I am not alone in this, but I don't seem to be finding many
solutions.
I am running a CentOS box and * 1.09 with a TDM11B (1xFXS/1xFXO).
Everything works great accept hang-up detection of incoming PSTN calls.
* answers the call, but if the incoming caller hangs up, * does not release
the line.
I have determined the following information about my line:
When On-Hook line voltage =
2016 Jul 28
2
[PATCH] : Adding dlabel option to chain.c32
That is perfectly true. I had a beautiful bug in the code .... Switching
from python to C have some weird side-effect. Indenting is not enough,
brackets are required....
So I pushed
https://github.com/ErwanAliasr1/syslinux/commit/5a122d218553a6d4019273653ba9fad66d6ae79e
with the fix.
I tested it on my multi-disk system with success.
I also changed the name of the function.
2016-07-17 8:21
2015 Oct 14
2
failed to pivot job for disk vdc
Hello,
I did a virsh snapshot-create-as --domain meta sn1 --diskspec
vda,file=/var/lib/libvirt/images/meta-sn1.qcow2 --disk-only
--atomic --no-metadata
Then I successfully blockcommitted 2 disks:
virsh blockcommit meta vda --active --verbose --pivot
virsh blockcommit meta vdb --active --verbose --pivot
But when doing
virsh blockcommit meta vdc --active --verbose --pivot
I got:
Block commit:
2016 Jul 17
2
[PATCH] : Adding dlabel option to chain.c32
>
> As opposed to "label",
> "dlabel" ...
> https://github.com/ErwanAliasr1/syslinux/commit/ebf8cbf
>
> SeaBIOS / GRUB2
>
> ...
> ...
> <target dev='vdc' bus='virtio'/>
> <boot order='3'/>
> ...
> ...
> <target dev='vdd' bus='virtio'/>
2011 Jan 12
1
Filesystem creation in "degraded mode"
I''ve had a go at determining exactly what happens when you create a
filesystem without enough devices to meet the requested replication
strategy:
# mkfs.btrfs -m raid1 -d raid1 /dev/vdb
# mount /dev/vdb /mnt
# btrfs fi df /mnt
Data: total=8.00MB, used=0.00
System, DUP: total=8.00MB, used=4.00KB
System: total=4.00MB, used=0.00
Metadata, DUP: total=153.56MB, used=24.00KB
Metadata:
2016 Nov 23
4
Off-Topic: Travel Router and Firewall
On 11/23/2016 2:24 PM, Leon Fauster wrote:
> DIY based onhttp://www.pcengines.ch/ hardware ...
the APU2, which is their current generation board suitable for a router
like this, requires 12VDC up to 1 amp, so tis not suitable for USB power
(5V, up to 2.5 amp) unless you rig up a USB to 12V DC-DC converter.
I do wonder how the OP plans on connecting his phone and/or tablet via
ethernet to
2006 Apr 06
2
# IP601's with POE per Catalyst 3560G-48PS
Hello people,
I am having difficulties figuring out the POE power draw in
watts from a Polycom IP601. I want to know how many
IP601's can be powered from the Cisco Catalyst 3560G-48PS.
The IP601 wallwart has: Input 120VAC 60hz 19W, Output 24VDC
500mA. I assume the output is appropriate value to figure
out how many phones can be powered.
The Cisco 3560 datasheet says "the 48-port PoE
2012 Oct 17
5
Problem reading vitals from Gigabyte H77-DH3H
Hello everyone,
I'm unable to read temperature Gigabyte H77-DH3H motherboard. Is that
motherboard supported or am I doing it incorrectly?
When trying to access hw.acpi.thermal everything appears to be ok, but
it is not, the system always returns 27,8C and 29,8C which fooled me
initially - the values never change.
Here is output:
[chinatsu]:/root# sysctl hw.acpi.thermal
2013 Jun 25
2
Re: snapshot-create-as for a single disk not all disks
Thanks for you reply!
Firstly, I'm very sorry I forgot introduce the scenarios in my experiments. Supposing a case, I have a virtual machine with two disks. One is mounted as a root partition and the other is data partition and the second disk is an iscsi lun, that is to say, not a local disk or image. Now the result wanted is that creating a snapshot for the root disk but not for the data
2012 Dec 17
5
Feeback on RAID1 feature of Btrfs
Hello,
I''m testing Btrfs RAID1 feature on 3 disks of ~10GB. Last one is not
exactly 10GB (would be too easy).
About the test machine, it''s a kvm vm running an up-to-date archlinux
with linux 3.7 and btrfs-progs 0.19.20121005.
#uname -a
Linux seblu-btrfs-1 3.7.0-1-ARCH #1 SMP PREEMPT Tue Dec 11 15:05:50 CET
2012 x86_64 GNU/Linux
Filesystem was created with :
# mkfs.btrfs -L
2005 Sep 14
4
Echo on SPA-3000 FXO
I've had an spa3k in service here at the house for a while now. After
some initial wrangling, it's been working okay. I've had to reboot it a
couple times and have noticed something rather annoying though.
My setup is pretty simple and, dare I say, common. I have the SPA-3000
"inline" between my incoming POTS line and the internal house phone. It's
setup to deliver
2011 Jul 01
16
Power-outage
I have a CentOS-5.6 remote server in a house in Italy,
where there are occasional thunder-storms.
There was one yesterday, when the electricity
went off 3 times, for a second or so on each occasion.
My server, an HP MicroServer,
came back (re-booted) on 2 of the 3 occasions,
but not on the third.
I assume that the problem arises because the machine
does not close down properly.
(Although it is
2013 Jun 26
2
Re: snapshot-create-as for a single disk not all disks
try snapshot-create-as like below:
virsh snapshot-create-as vm --disk-only --diskspec "vda,snapshot=external"
2013/6/25 cmcc.dylan <dx10years@126.com>
>
> Hi, everyone,
> I have found the API snapshotCreateXML() can create a snapshot for a
> virtual machine, and the xml configuration file - snapshot.xml as folllows:
> <domainsnapshot>
>
2012 Oct 25
46
[RFC] New attempt to a better "btrfs fi df"
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi all,
this is a new attempt to improve the output of the command "btrfs fi df".
The previous attempt received a good reception. However there was no a
general consensus about the wording.
Moreover I still didn''t understand how btrfs was using the disks.
A my first attempt was to develop a new command which shows how the
disks
2011 Aug 20
1
Detaching LVM volume from Windows guest
Hello,
I have some difficulties regarding to above title. Windows as guest OS
is running on KVM(Ubuntu natty).
After attaching LVM volume to guest OS and did "safely remove device" in
guest windows, detaching volume was failed.
> root at localhost:/opt/win# virsh detach-disk testwin vdc
> error: Failed to detach disk
> errpr: operation failed: detaching virtio-disk2 device
2011 Sep 20
1
Getting guest to detect new drive without reboot
I've got a CentOS 5.6 guest running on 6.0 host.
Using virsh attach-disk, I attached a new raw file as vdc
However, the guest does not detect this new disk.
In the past, I've used the following
echo "0 0 0" > /sys/class/scsi_host/host#/scan
command to make a CentOS system scan for new drives.
However in the guest, there is no host in scsi_host so this isn't an option.
2023 Feb 28
1
[PATCH] io_uring: fix fget leak when fs don't support nowait buffered read
Heming reported a BUG when using io_uring doing link-cp on ocfs2. [1]
Do the following steps can reproduce this BUG:
mount -t ocfs2 /dev/vdc /mnt/ocfs2
cp testfile /mnt/ocfs2/
./link-cp /mnt/ocfs2/testfile /mnt/ocfs2/testfile.1
umount /mnt/ocfs2
Then umount will fail, and it outputs:
umount: /mnt/ocfs2: target is busy.
While tracing umount, it blames mnt_get_count() not return as expected.
Do a
2016 Jul 18
3
[PATCH 2/3] qemu: Implement virtio-pstore device
From: Namhyung Kim <namhyung at gmail.com>
Add virtio pstore device to allow kernel log files saved on the host.
It will save the log files on the directory given by pstore device
option.
$ qemu-system-x86_64 -device virtio-pstore,directory=dir-xx ...
(guest) # echo c > /proc/sysrq-trigger
$ ls dir-xx
dmesg-0.enc.z dmesg-1.enc.z
The log files are usually compressed using
2014 May 30
4
[PATCH] block: virtio_blk: don't hold spin lock during world switch
Firstly, it isn't necessary to hold lock of vblk->vq_lock
when notifying hypervisor about queued I/O.
Secondly, virtqueue_notify() will cause world switch and
it may take long time on some hypervisors(such as, qemu-arm),
so it isn't good to hold the lock and block other vCPUs.
On arm64 quad core VM(qemu-kvm), the patch can increase I/O
performance a lot with VIRTIO_RING_F_EVENT_IDX
2014 May 30
4
[PATCH] block: virtio_blk: don't hold spin lock during world switch
Firstly, it isn't necessary to hold lock of vblk->vq_lock
when notifying hypervisor about queued I/O.
Secondly, virtqueue_notify() will cause world switch and
it may take long time on some hypervisors(such as, qemu-arm),
so it isn't good to hold the lock and block other vCPUs.
On arm64 quad core VM(qemu-kvm), the patch can increase I/O
performance a lot with VIRTIO_RING_F_EVENT_IDX