Am 7.9.2018 13:13, schrieb Qu Wenruo:
On 2018/9/7 下午6:45, Jürgen Herrmann wrote:
Am 7.9.2018 12:15, schrieb Qu Wenruo:
On 2018/9/7 下午5:56, Jürgen Herrmann wrote:
Hello!
I'm having a problem with btrfs send which stops after several
seconds.
The process hangs with 100% cpu time on one cpu. The system is still
responsive to input but no io is happening anymore so the system
basically becomes unuseable.
Do you have a lot of snapshots or reflinked files (common for offline
dedupe)?
If so, send can spend a lot of time trying to iterate all
referencers.
Linux Mint 19 uses timeshift-btrfs which i find very handy. here's
a list of snapshot directories, each containing two subvolumes for
@ and @home:
drwxr-xr-x 1 root root 30 Aug 16 20:00 2018-08-16_20-00-01
drwxr-xr-x 1 root root 30 Aug 17 14:00 2018-08-17_14-00-02
drwxr-xr-x 1 root root 30 Aug 23 20:00 2018-08-23_20-00-01
drwxr-xr-x 1 root root 30 Aug 30 20:00 2018-08-30_20-00-01
drwxr-xr-x 1 root root 30 Aug 31 17:00 2018-08-31_17-00-01
drwxr-xr-x 1 root root 30 Sep 1 20:00 2018-09-01_20-00-02
drwxr-xr-x 1 root root 30 Sep 2 20:00 2018-09-02_20-00-02
drwxr-xr-x 1 root root 30 Sep 3 22:00 2018-09-03_22-00-01
drwxr-xr-x 1 root root 30 Sep 4 22:00 2018-09-04_22-00-02
drwxr-xr-x 1 root root 30 Sep 5 22:00 2018-09-05_22-00-01
drwxr-xr-x 1 root root 30 Sep 6 20:00 2018-09-06_20-00-01
drwxr-xr-x 1 root root 30 Sep 6 22:00 2018-09-06_22-00-01
Considering the number of snapshots, it's not that many, so it may be
another bug.
Not sure about mint, but most deb/ubuntu based distributions don't ship
the latest kernel, while latest kernel may have a chance to solve it.
I'm on linux mint 19, freshly installed on a new laptop about 6
weeks
ago. So i wanted to compile latest btrfs-progs and latest stable
kernel
first before reporting that here, BUT: I cannot compile btrfs-progs
4.17.1
because of the following error:
Your configure detects reiserfs support but it seems that your
reiserfs
progs is not up-to-date.
You could disable reiserfs convert support by:
$ ./configure --with-convert=ext2
This gives me the following error:
[LD] btrfs-convert
convert/main.o: In function `convert_open_fs':
/home/jh/Documents/src/_external/btrfs-progs/convert/main.c:1066:
undefined reference to `reiserfs_convert_ops'
/home/jh/Documents/src/_external/btrfs-progs/convert/main.c:1066:
undefined reference to `reiserfs_convert_ops'
collect2: error: ld returned 1 exit status
Makefile:506: recipe for target 'btrfs-convert' failed
make: *** [btrfs-convert] Error 1
This is strange, did you clean (make clean) your previous build before
re-configure?
If it still fails, you could disable convert completely by:
$ ./configure --disable-convert
Thanks,
Qu
Sorry, another noob mistake :/
after cleaning the src dir it compile fine.
I will report back on the original issue as i now have
btrfs progs 4.17.1 compiled and am running 4.18.6 vanilla kernel.
If the problem with btrfs send is still there, I guess I should post to
a new thread?
Best regards,
Jürgen
Best regards, Jürgen
Thanks,
Qu
[CC] convert/source-reiserfs.o
In file included from convert/source-reiserfs.c:30:0:
./convert/source-reiserfs.h:23:10: fatal error: reiserfs/misc.h: No
such
file or directory
#include <reiserfs/misc.h>
^~~~~~~~~~~~~~~~~
compilation terminated.
Makefile:309: recipe for target 'convert/source-reiserfs.o' failed
make: *** [convert/source-reiserfs.o] Error 1
A google search did not turn up any help nor does apt know of any
reiserfs related libs that i could install.
Best regards,
Jürgen
--
Jürgen Herrmann
https://t-5.eu
ALbertstraße 2
94327 Bogen
