similar to: [PATCH resend] block: silently error unsupported empty barriers too

With 2.6.31-rc5 in a KVM guest using dm and virtio_blk, we see the following errors: end_request: I/O error, dev vda, sector 0 end_request: I/O error, dev vda, sector 0 The errors go away if dm stops submitting empty barriers, by reverting: commit 52b1fd5a27c625c78373e024bf570af3c9d44a79 Author: Mikulas Patocka <mpatocka at redhat.com> dm: send empty barriers to targets in

With 2.6.31-rc5 in a KVM guest using dm and virtio_blk, we see the following errors: end_request: I/O error, dev vda, sector 0 end_request: I/O error, dev vda, sector 0 The errors go away if dm stops submitting empty barriers, by reverting: commit 52b1fd5a27c625c78373e024bf570af3c9d44a79 Author: Mikulas Patocka <mpatocka at redhat.com> dm: send empty barriers to targets in

Hello guys Does anyone use lvm2 backends for domU storages ? I do and I wanted to use lvm''s snapshot feature to make backups of domUs in background but I got the following problem. When I create a snapshot LV and copy data from it to backup storage it works perfect. Then I do umount and then lvremove. lvremove asks me if I really want to remove the volume and then just hangs forever.

Hi, Want to do some experiments with the G.723 codecs - where can I download the 723 source code for Asterisk? I know there are some ongoing discussion regarding patents and license fees for the g.723 but I have some hardware on which I only have the 723 and need to test it privately. Thanks! Dan _________________________________________________________________ Use MSN Messenger to send

flight 21641 linux-3.10 real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/21641/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-i386-pv 18 leak-check/check fail REGR. vs. 21026 test-amd64-i386-qemut-rhel6hvm-intel 11 leak-check/check fail REGR. vs. 21026 test-amd64-i386-qemuu-rhel6hvm-intel 11

[Following up on this thread: http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/14999] Alasdair G Kergon wrote: > Try > blkdev --flushbufs > after any cmd that writes to a dev to see if that makes any difference. Thanks for the work-around. Using "blockdev --flushbufs $dev" does indeed make parted behave the same with dm-backed storage as with other devices.

On 06/27/2011 07:46 AM, NeilBrown wrote: > On Thu, 23 Jun 2011 12:53:37 +0200 Nico Schottelius > <nico-lkml-20110623@schottelius.org> wrote: > >> Good morning devs, >> >> I''m wondering whether the raid- and volume-management-builtin of btrfs is >> actually a sane idea or not. >> Currently we do have md/device-mapper support for raid >>

Hi everyone, I'm happy to announce that I've implemented a Block I/O bandwidth controller. The controller is designed to be of use in a cgroup or virtual machine environment. The current approach is that the controller is implemented as a device-mapper driver. What's dm-band all about? ======================== Dm-band is an I/O bandwidth controller implemented as a device-mapper

Hi everyone, I'm happy to announce that I've implemented a Block I/O bandwidth controller. The controller is designed to be of use in a cgroup or virtual machine environment. The current approach is that the controller is implemented as a device-mapper driver. What's dm-band all about? ======================== Dm-band is an I/O bandwidth controller implemented as a device-mapper

Not really interesting yet, this just gets us to the state where single queue boots on a current kernel. Signed-off-by: Jens Axboe <axboe at kernel.dk> --- block/Kconfig | 5 + block/Kconfig.iosched | 2 + block/blk-core.c | 427 ++++++++++++++++++-------------------- block/blk-exec.c | 14 +- block/blk-flush.c

Not really interesting yet, this just gets us to the state where single queue boots on a current kernel. Signed-off-by: Jens Axboe <axboe at kernel.dk> --- block/Kconfig | 5 + block/Kconfig.iosched | 2 + block/blk-core.c | 427 ++++++++++++++++++-------------------- block/blk-exec.c | 14 +- block/blk-flush.c

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

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

I'm pleased to announce libguestfs 1.38, a library and a set of tools for accessing and modifying virtual machine disk images. This release represents about a year of work by many contributors. I'd like to call out in particular substantial contributions from: Cédric Bosdonnat, Pavel Butsykin, Matteo Cafasso, Tomáš Golembiovský, Nikos Skalkotos, and Pino Toscano. Virt-builder-repository

Hello all, I'm trying to convert a DVD movie from the original DVD to a 700MB AVI file. Note: This is from a DVD I purchased, I want to convert it for home use, I'm not uploading it anywhere. I've used MacTheRipper to rip the DVD and I've got a folder containing AUDIO_TS and VIDEO_TS sub-folders and associated files. Wine comes into play as I want to use AutoGK (Auto Gordian

Hey, The recent discussion on NAS/SAN and the Thecus N8800 got me to thinking. Bit of background. I have an old Dual Athlon MP2800+ that I'm using for a home web/file server. It runs fine but between the noise of the various fans and it's location in the living room, I've been asked by my spouse to find a replacement for it that's smaller & quieter. Looking at the Thecus, and

Hi everyone, This is dm-ioband version 1.0.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 0.0.4 (24th April): - Performance tuning - A new bandwidth control policy is added. This policy controls

Hi everyone, This is dm-ioband version 1.0.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 0.0.4 (24th April): - Performance tuning - A new bandwidth control policy is added. This policy controls

Hi everyone, This is dm-ioband version 1.0.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 0.0.4 (24th April): - Performance tuning - A new bandwidth control policy is added. This policy controls

Hi everyone, This is dm-ioband version 1.1.0 release. Dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver, which gives specified bandwidth to each job running on the same physical device. - Can be applied to the kernel 2.6.26-rc2-mm1. - Changes from 1.0.0 (posted on May 19, 2008): - Measures against high memory pressure. I/O requests to reclaim pages won't