Eric Sandeen wrote:
Robin Laing wrote:
Eric Sandeen wrote:
Chuck Forsberg WA7KGX N2469R wrote:
I reformatted the backup drive with ext2 to see if that made any
difference. Fedora still wedged during the backup, twice.
When/if you gather the info I requested - sysrq 'w' output, which will
actually help identify & resolve the issue instead of speculating about
it, please file a bug against the kernel, attach the info I asked for,
and I'll see it that way. I probably won't be following these threads
further.
-Eric
And when you do, post the details to this list.
I ask that as my F10 machine is going into a total freeze during backups
as well. The only item of what happened was a message in messages about
a kernel oops.
What is the number for the bug you filed?
I thought it may be related to the EXT4 issues and I am in the process
of dumping EXT4 after reading many reports of data loss.
Please don't. Please at *LEAST* report the bug(s) first - with details.
Guys, reporting vague errors on this list and then not following up with
any useful information - especially when specific, simple steps are
requested from developers who could *fix* it - is just wasting people's
time and bandwidth.
For what it's worth, I assume your "many reports of data loss" are
probably related to the recent slashdot/lwn/launchpad/whatever posting.
I won't rehash all the details of that, but patches are now in f10 and
f11 to make ext4 behave a bit more like ext3, even when applications
aren't doing an fsync(); on their data. I do not expect that you will
be at a large risk of data loss with ext4 on Fedora.
Thanks,
-Eric
I always will report bugs if I can get the details. It is almost
useless to report bugs if you don't have any details to post with it as
there is a request for more details.
It takes time to learn what tools to use to find issues. I just read an
IBM paper on tracing problems using iostat. I also found dstat at the
same time. It is IO related as the problems all come from using or
writing to a hard drive. It has also gotten worse and may be related to
the latest kernel.
My dumping EXT4 is more due to reports that I have read about data loss
due to the procedure for write delays. I have run into the issue of
losing my kde config files as reported by others on the net already.
http://www.advogato.org/person/mjg59/diary/195.html
http://www.h-online.com/open/Possible-data-loss-in-Ext4--/news/112821
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/317781?comments=all
I am also dumping EXT4 as I am trying to trace the issue with
locking/freezing computer and I don't need data losses.
As it stands, I did get a kernel oops last night that didn't crash my
system and was logged in messages. I was using a tty session so this
could be why the system didn't totally freeze.
I have not had time to look through it and to see where it should be
posted. It is related to USB as it occurred when I unplugged my USB
drive that I was restoring data from. It was late and I was tired so I
want to check things on the system before going further.
There is an issue with filing kernel related bugs if the kernel is
tainted because of Nvidia drivers. I have been told before that I need
to remove the driver before filing a bug. Well that is hard to do when
3D is needed on the computer with the problem.
I just tried the sysrq 'w' but I don't have that command on my machine
at work.
--
Robin Laing
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