Displaying 20 results from an estimated 800 matches similar to: "Buffer I/O error on device nbd0"
2015 Nov 07
0
Re: mkfs.ext2 succeeds despite nbd write errors?
On Sat, Nov 07, 2015 at 12:21:29AM -0600, Jason Pepas wrote:
> Hi,
>
> So I've been hacking together an nbdkit plugin (similar to the "file"
> plugin, but it splits the file up into chunks):
> https://github.com/pepaslabs/nbdkit-chunks-plugin
>
> I got it to the point of being a working prototype. Then I threw it
> onto a raspberry pi, which it turns out
2015 Nov 07
2
mkfs.ext2 succeeds despite nbd write errors?
Hi,
So I've been hacking together an nbdkit plugin (similar to the "file"
plugin, but it splits the file up into chunks):
https://github.com/pepaslabs/nbdkit-chunks-plugin
I got it to the point of being a working prototype. Then I threw it
onto a raspberry pi, which it turns out only has a 50/50 shot of
fallocate() working correctly.
I'm checking the return code of
2014 Jun 13
2
Re: libguestfs supermin error
Hi RIch
It got solved.I updated the newer vmlinuz file with the older one after
enabling the virtio modules with (m) option.
Thanks for the wonderful support you provided me.I'll now ryo to boot my VM
from the cloud and let you know if any further issues.
I'm now getting following logs...
libguestfs-test-tool
************************************************************
*
2018 Oct 16
1
Re: Question about mounting QCOW2 files....
On Mon, Oct 15, 2018 at 10:28:25AM -0400, Raghuram Devarakonda wrote:
> On Mon, Oct 15, 2018 at 3:54 AM Richard W.M. Jones <rjones@redhat.com> wrote:
> >
> > [Adding libguestfs mailing list]
> >
> > On Sun, Oct 14, 2018 at 11:53:17AM -0400, Raghuram Devarakonda wrote:
> > > Hi,
> > >
> > > In our project, we deal with quite large sparse
2007 Jul 05
1
First install No Sound
Hi Gang.
I installed CentOS last night and the sound card detection
failled to
detect
the sound card. I have a Asrock K8NF6G-VSTA mother board, with a nVidia
NF6100-405 chip set. I have tried various live distro's and I ran Fedora
7 on
it for just over 2 weeks and none of them detected the sound card. I'm
a
newbie to Red Hat based distributions but have been using Mandriva for
2007 Jul 06
0
Sent from CentOS box First install no Sound
Hi Gang.
I installed CentOS last night and the sound card detection failled to
detect
the sound card. I have a Asrock K8NF6G-VSTA mother board, with a nVidia
NF6100-405 chip set. I have tried various live distro's and I ran Fedora 7 on
it for just over 2 weeks and none of them detected the sound card. I'm a
newbie to Red Hat based distributions but have been using Mandriva for
2009 Apr 28
1
USB device not connected (CentOS 5.3)
I just tried this with CentOS 5.3 as well, and got exactly the same
symptoms and dmesg output. (As a point of comparison, Ubunu 8.04 on
my work laptop is able to access the drive.)
Obviously "not detected" is a misapprehension, though I'm puzzled why
"lsusb" doesn't show it. The device is there even though the
partition table can't be read.
---------- Forwarded
2009 Jun 04
0
Instability with later 4.x kernels?
I have an Athlon with about 10 HDDs plugged in, primarily to do Disk2Disk
backups. Some drives are PATA, some are SATA, some are USB. A strange
concoction, but it's been relatively stable for some 4-5 years, despite
numerous upgrades and so on. It's been running CentOS 4 for a long, long time.
(years)
Recently, I've started to have problems with its stability, and after 2 weeks
2007 Jun 25
1
I/O errors in domU with LVM on DRBD
Hi,
Sorry for the need of the long winded email. Looking for some answers
to the following.
I am setting up a xen PV domU on top of a LVM partitioned DRBD
device. Everything was going just fine until I tried to test the
filesystems in the domU.
Here is my setup;
Dom0 OS: CentOS release 5 (Final)
Kernel: 2.6.18-8.1.4.el5.centos.plusxen
Xen: xen-3.0.3-25.0.3.el5
DRBD:
2018 Sep 17
0
nbdkit -c /dev/nbdX option
While I was thinking about what I'd write for my proposed nbdkit talk
at FOSDEM next year, this strikes me as clunky:
rm -f /tmp/sock
nbdkit -U /tmp/sock file foo
nbd-client -u /tmp/sock /dev/nbd0
...
nbd-client -d /dev/nbd0
killall nbdkit
In qemu-nbd, all that is just this:
qemu-nbd -c /dev/nbd0 foo
It seems like it would be nice to implement an ‘nbdkit -c
2017 Apr 23
0
Proper way to remove a qemu-nbd-mounted volume usnig lvm
I either haven't searched for the right thing or the web doesn't contain
the answer.
I have used the following to mount an image and now I need to know the
proper way to reverse the process.
qemu-nbd -c /dev/nbd0 <qcow2 image using lvm>
vgscan --cache (had to use --cache to get the qemu-nbd volume to
be recognized, lvmetad is running)
vgchange -ay
2005 Nov 19
1
Bad disk?
Hi, I get the below from dmesg. The server seems to run fine, but it
does worry me. What should I do? Other than take a backup.. :-)
hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error
hda: dma timeout error: status=0xd0 { Busy }
ide: failed opcode was: unknown
hda: DMA disabled
ide0: reset: success
hda: dma_timer_expiry: dma status == 0x21
hda: dma_intr: status=0x51 { DriveReady
2003 Oct 26
1
Quantum IDE HDD DMA issue.
I am running RH 7.3 with kernel 2.4.18-27.7.x.
Recently I have added a new 60GB Quantum IDE hard drive to the server. I
have set it up as a MASTER on a separate IDE channel. Two partitions on
the /dev/hdc are /dev/hdc1, /dev/hdc2 - both using ext3.
For more detailed HDD parameters, this is 'hdparm -i /dev/hdc':
-----------------
/dev/hdc:
Model=IC35L060AVV207-0, FwRev=V22OA66A,
2006 Dec 01
1
[PATCH] Ensure blktap reports I/O errors back to guest
There are a number of flaws in the blktap userspace daemon when dealing
with I/O errors.
- The backends which use AIO check the io_events.res member to determine
if an I/O error occurred. Which is good. But when calling the callback
to signal completion of the I/O, they pass the io_events.res2 member
Now this seems fine at first glance[1]
"res is the usual result of an I/O
2019 Jun 27
2
mkfs fails on qemu-nbd device
Hi All,
I am unable to figure out the issue here, when I try to create a filesystem
(ext4) on a virtual disk using qemu-nbd. This happens intermittently.
Following is the sequence of commands:-
$> qemu-img create -f qcow2 test.qcow2 30G
$> qemu-nbd --connect=/dev/nbd0 test.qcow2
$> *mkfs.ext4 /dev/nbd0*
* mkfs.ext4: Device size reported to be zero. Invalid partition specified,
or*
2009 Oct 14
1
Bug on barriers for virtio_blk device - end_request: I/O error, dev vda, sector 0
Added CCs for the author of and people CCed on the patch.
The patch has been submitted twice (6 Aug, 3 Sept), the first time there
was one concern voiced which seems to have been addressed in replies. The
second time there were no reactions.
The patch seems to work for Massimo...
Massimo Cetra wrote:
> Massimo Cetra ha scritto:
>> Hello all,
>>
>> i ended up with some
2009 Oct 14
1
Bug on barriers for virtio_blk device - end_request: I/O error, dev vda, sector 0
Added CCs for the author of and people CCed on the patch.
The patch has been submitted twice (6 Aug, 3 Sept), the first time there
was one concern voiced which seems to have been addressed in replies. The
second time there were no reactions.
The patch seems to work for Massimo...
Massimo Cetra wrote:
> Massimo Cetra ha scritto:
>> Hello all,
>>
>> i ended up with some
2011 Mar 09
0
Re: "open_ctree failed", unable to mount the fs
Hi,
I''ve got similar problem - after HW failure - two of three disks became unavailable and now I''m unable to btrfsck.
Btrfs lays on /dev/sdb1,/dev/sdc1,/dev/sdd1 - sdc+sdd became unavailable
Here is kernel log:
============================================
Mar 9 23:56:28 ftp2 kernel: [121492.593338] ata7.00: exception Emask 0x60 SAct 0x1 SErr 0x800 action 0x6 frozen
Mar 9
2017 Jul 21
0
kernel-4.9.37-29.el7 (and el6)
On 07/20/2017 03:14 PM, Piotr Gackiewicz wrote:
> On Thu, 20 Jul 2017, Kevin Stange wrote:
>
>> On 07/20/2017 05:31 AM, Piotr Gackiewicz wrote:
>>> On Wed, 19 Jul 2017, Johnny Hughes wrote:
>>>
>>>> On 07/19/2017 09:23 AM, Johnny Hughes wrote:
>>>>> On 07/19/2017 04:27 AM, Piotr Gackiewicz wrote:
>>>>>> On Mon, 17 Jul
2007 May 28
0
VT6420 sata_via problem
Hello,
A message was already posted here regarding this issue-
I experience the same problem with 6 machines, all with Hitachi
harddrive, VIA Motherboard which uses the sata_via driver:
Once every few days each machine freezes or just stops reading from the
HD and throws i/o error messages as pasted below.
Note that the first "ata exception Emask" errors apear right after
booting,