Re: [PATCH] btrfs-progs: show-super: Add option to print superblock at given bytenr

On Mon, Nov 02, 2015 at 04:34:19PM +0800, Qu Wenruo wrote: > Add '-s ' option to show superblock at given bytenr. > > This is very useful to debug non-standard btrfs, like debuging the > 1st stage btrfs of btrfs-convert. > > Signed-off-by: Qu Wenruo Applied, thanks. --

Re: [PATCH V2] Btrfs: find_free_extent: Do not erroneously skip LOOP_CACHING_WAIT state

On 11/02/2015 03:29 AM, Chandan Rajendra wrote: When executing generic/001 in a loop on a ppc64 machine (with both sectorsize and nodesize set to 64k), the following call trace is observed, WARNING: at /root/repos/linux/fs/btrfs/locking.c:253 Modules linked in: CPU: 2 PID: 8353 Comm: umount Not

Re: random i/o error without error in dmesg

2015-10-28 09:44 keltezéssel, Szalma László írta: Ok, I had a chance to try some things. 1.: the error md5sum xyz md5sum: xyz: Input/output error (no any errors in dmesg) 2.: mount -o remount,ro /mnt/x (could not do, it is used) mysql stop && mount -o remount,ro /mnt/x problem persists: io

[PATCH] btrfs-progs: print-tree: Output stripe dev uuid

Add output for dev uuid for print_chunk(). Quite useful to debug temporary btrfs in btrfs-convert. Signed-off-by: Qu Wenruo --- print-tree.c | 8 1 file changed, 8 insertions(+) diff --git a/print-tree.c b/print-tree.c index 7ddf400..4d4c3a2 100644 ---

Re: [PATCH/RFC] make btrfs subvol mounts appear in /proc/mounts

On Wed, Oct 28, 2015 at 07:25:10AM +0900, Neil Brown wrote: > > If you create a subvolume in btrfs and access it (by name) without > mounting it, then the subvolume looks like a separate mount to some > extent, returning a different st_dev to stat(), but it doesn't look like > a separate mount in

[PATCH 2/2] btrfs-progs: Rename variables in btrfs_add_to_fsid

There are two total_bytes in btrfs_add_to_fsid(), local variable of total_bytes means fs_total_bytes, and device->total_bytes means device's total_bytes. And device's total_bytes in argument is named block_count in current code. This patch rename: total_bytes -> fs_total_bytes block_count ->

[PATCH 1/2] btrfs-progs: mkfs: Round device size down to sectorsize

When do following command in a vm, whose disks are created by qemu-img create -f raw 11 2.6G: # mkfs.btrfs -f /dev/vdd /dev/vde /dev/vdf # btrfs-show-super /dev/vdd /dev/vde /dev/vdf | grep dev_item.total_bytes dev_item.total_bytes2791727104 dev_item.total_bytes2791729152

[PATCH] btrfs-progs: show-super: Add option to print superblock at given bytenr

Add '-s ' option to show superblock at given bytenr. This is very useful to debug non-standard btrfs, like debuging the 1st stage btrfs of btrfs-convert. Signed-off-by: Qu Wenruo --- Documentation/btrfs-show-super.asciidoc | 5 + btrfs-show-super.c

[PATCH V2] Btrfs: find_free_extent: Do not erroneously skip LOOP_CACHING_WAIT state

When executing generic/001 in a loop on a ppc64 machine (with both sectorsize and nodesize set to 64k), the following call trace is observed, WARNING: at /root/repos/linux/fs/btrfs/locking.c:253 Modules linked in: CPU: 2 PID: 8353 Comm: umount Not tainted 4.3.0-rc5-13676-ga5e681d #54 task:

Re: [PATCH V2] Btrfs: find_free_extent: Do not erroneously skip LOOP_CACHING_WAIT state

On Mon, Nov 02, 2015 at 01:59:46PM +0530, Chandan Rajendra wrote: > When executing generic/001 in a loop on a ppc64 machine (with both sectorsize > and nodesize set to 64k), the following call trace is observed, Thanks Chandan, I hit this same trace on x86-64 with 16K nodes. -chris -- To

Re: [PATCH/RFC] make btrfs subvol mounts appear in /proc/mounts

On Mon, Nov 02, 2015 at 03:50:12PM -0500, J. Bruce Fields wrote: > On Wed, Oct 28, 2015 at 07:25:10AM +0900, Neil Brown wrote: > > > > If you create a subvolume in btrfs and access it (by name) without > > mounting it, then the subvolume looks like a separate mount to some > > extent, returning a

[PATCH V2] btrfs: Print Warning only if ENOSPC_DEBUG is enabled

Dont call WARN_ON for ENOSPC error unless ENOSPC_DEBUG is enabled. Signed-off-by : Ashish Samant --- fs/btrfs/delayed-inode.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index

Re: [PATCH] fstests: generic test for fsync after hole punching

On Mon, Nov 02, 2015 at 12:32:57PM +, fdman...@kernel.org wrote: > From: Filipe Manana > > Test that a file fsync works after punching a hole for the same file > range multiple times, and that after log/journal replay the file's > content and layout are correct. > > This

Re: Btrfs progs pre-release 4.3-rc1

David Sterba posted on Mon, 02 Nov 2015 16:14:53 +0100 as excerpted: > the kernel 4.3 was released yesterday, the btrfs-progs will follow at > the end of this week. I've tagged an rc1 from current devel branch. > There are a lots of small invisible changes and one change in the > defaults: > > *

Re: [PATCH/RFC] make btrfs subvol mounts appear in /proc/mounts

On Tue, Nov 03 2015, Chris Mason wrote: > On Mon, Nov 02, 2015 at 03:50:12PM -0500, J. Bruce Fields wrote: >> On Wed, Oct 28, 2015 at 07:25:10AM +0900, Neil Brown wrote: >> > >> > If you create a subvolume in btrfs and access it (by name) without >> > mounting it, then the subvolume looks like a

4.2.5 forced read-only -ENOSPC w/ free space

During an rsync, 20TB unallocated space. Currently, no snapshots. Should I try 4.1.12, or 4.3? dmesg: [122014.436612] BTRFS: error (device sde) in btrfs_run_delayed_refs:2781: errno=-28 No space left [122014.436615] BTRFS info (device sde): forced readonly [122014.436624] BTRFS: error (device sde)

Btrfs progs pre-release 4.3-rc1

Hi, the kernel 4.3 was released yesterday, the btrfs-progs will follow at the end of this week. I've tagged an rc1 from current devel branch. There are a lots of small invisible changes and one change in the defaults: * mkfs: mixed mode is not forced anymore for devices smaller than 1 GiB I've

[PATCH] fstests: generic test for fsync after hole punching

From: Filipe Manana Test that a file fsync works after punching a hole for the same file range multiple times, and that after log/journal replay the file's content and layout are correct. This test is motivated by a bug found in btrfs, which is fixed by the following linux

[PATCH] Btrfs: fix hole punching when using the no-holes feature

From: Filipe Manana When we are using the no-holes feature, if we punch a hole into a file range that already contains a hole which overlaps the range we are passing to fallocate(), we end up removing the extent map that represents the existing hole without adding a new one.

Process is blocked for more than 120 seconds

Hi everyone, I have noticed the following in the log. The system continues to run, but I am not sure for how long it will be stable. # uname -a Linux Debian 4.2.3-2~bpo8+1 (2015-10-20) i686 GNU/Linux # mount | grep /var /dev/sdd2 on /var type btrfs

Re: trying to balance, filesystem keeps going read-only.

On 2015-11-01 09:33, Ken Long wrote: > I get a similar read-only status when I try to remove the drive from the > array.. > > Too bad the utility's function can not be slowed down.. to avoid > triggering this error... ? > Actually, there are a couple of ways you could do this. The most

Re: "free_raid_bio" crash on RAID6

Hi No, I never figured this out... After a while of waiting for answers I just started over and took the data from my backup. > Did you try removing the bad drive and did the system keep crashing anyway? As you can see in my first mail the drive was already removed when this error started to