On 10/23/2018 08:06 AM, Edward Shishkin wrote:
On 10/23/2018 06:28 AM, Jose R R wrote:
Thank you for replying, Al-
On Mon, Oct 22, 2018 at 8:38 PM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
On Mon, Oct 22, 2018 at 03:19:12AM -0700, Metztli Information
Technology wrote:
I installed reiser4 -enhanced Linux kernel 4.17.19-1 --thus
replacing the prior hung reiser4 -patched kernel 4.18.15-1 in the
Google Compute Engine (GCE) cloud instance. After less than 24
hours the 4.17.19-1 hung in similar way to the 4.18.15-1.
Please note that I had been running my custom Metztli Reiser4
Debian Stretch image with reiser4 linux 4.14.20-1 without issues
for several months
<
https://github.com/Metztli/reiser4-debian-kernel-packaging-4.14.20
> --until I decided to upgrade to newer kernel(s).
Hello.
Looks like a regression because of VFS/block-layer changes (I don't
test new releases carefully enough). Once I am back from vacations,
I'll have a look at this..
I don't confirm any regression though. Most likely it's the old bug
(slow progress in committing a transaction), which is not always
reproducible. See (*) for example. One needs to add profiling and
accumulate statistics to understand what is wrong. Personally for me
it is not a task of high priority.
My advise: don't -cc any mailing lists different from reiserfs-devel:
they are not able to magically resolve your problems. You will get
a flow of negatives instead.
(*) https://sourceforge.net/p/reiser4/tickets/1/
Thanks,
Edward.
That link you referenced is just my hack for the corresponding Debian
kernel packaging (wrapper) to build 'Reiser4 the Debian Way', i.e,
generating reiser4 module & kernel -- suitable for installation media
-- in addition to Debian's.
Er... Does anybody maintain reiser4 these days? I can't recall a
single mail
along the lines of "such-and-such VFS/VM/scheduler/etc. change would
break reiser4"
in quite a few years (more than a decade, most likely)...
This is the actual patch for the Linux 4.14.xy series:
<
https://sourceforge.net/projects/reiser4/files/reiser4-for-linux-4.x/reiser4-for-4.14.1.patch.gz/download
And yes, Mr. Edward Shishkin, still develops/maintains reiser4,
please see:
< https://github.com/edward6/reiser4 >
I have a couple of reiser4 custom Google Compute Engine (GCE) cloud
instances which have been running LAMP for a while. One of them runs
reiser4 -enabled Linux kernel 4.15.x whereas the other one was running
4.14.x (both for several months/years already) until I decided to
upgrade the 4.4.20-1 to newer reiser4 -enabled kernels. By the way
this last kernel that I installed:
uname -a
Linux cohuatl 4.16.0-2+reiser4.0.2-amd64 #1 SMP Debian 4.16.18-2
(2018-06-27) x86_64 GNU/Linux
seems to be performing nicely --if things continue fine I can assume
that the drastic change affecting reiser4 hacked kernels occurred
beginning with upstream Linux series 4.17.x and on...
Best Professional Regards.
