On 08/18/2011 10:38 AM, Chris Mason wrote:
Excerpts from Andrew Guertin's message of 2011-08-11 21:13:18 -0400:
On 08/09/2011 05:29 PM, Andrew Guertin wrote:
I have not tried 3.1-rc1, but plan to soon.
I've tested now, this does still occur in 3.1-rc1.
Ok, I had high hopes that the btrfs ch
Andrew,
Facing some challenges to test this. If you have a chance to test
it again, the following output will be interesting to observe.
iostat -ctx -p sda 3 > /tmp/iostat.out
Also note your system time when this problem occurs, (iostat has time
stamp, I wish see the waitQ and activeQ a
On 18/08/11 16:58, youagree wrote:
> Are these processes principally btrfs-submit and btrfs-transacti
> in particular?
>
> Then it may be related to my very similar issue reported earlier.
I spent a little bit of time last night looking at it and it
seems that what I'm seeing also affects ext4 o
Excerpts from Andrew Guertin's message of 2011-08-11 21:13:18 -0400:
> On 08/09/2011 05:29 PM, Andrew Guertin wrote:
> > I have not tried 3.1-rc1, but plan to soon.
>
> I've tested now, this does still occur in 3.1-rc1.
Ok, I had high hopes that the btrfs changes in rc1 would fix this.
Could you
On 08/18/2011 03:29 AM, Andrew Guertin wrote:
> I have not seen slowdowns on 2.6.38. More specifically, I observe the
> following behaviors after commit 4e69b59:
>
> * Many processes occasionally hang for a short time
> * When this happens, my cpu monitor shows a short burst of cpu activity
> (100
On 08/18/2011 09:29 AM, Andrew Guertin wrote:
> * Many processes occasionally hang for a short time
> * When this happens, my cpu monitor shows a short burst of cpu activity
> (100% of 1 core) followed by a longer period of IO
> * When this happens, iotop shows [btrfs-submit-0] and [btrfs-transacti
On 08/17/2011 10:41 PM, Anand Jain wrote:
Dave,
good to have a test case on the 3.0 kernel. do you have btrfs as
root fs ? and
can you show how are you using the btrfs mainly I would need
'btrfs fi show' let me try if I can reproduce.
Thanks, Anand
Personally, I find that large compiles are v
On 08/18/2011 02:44 AM, youagree wrote:
Also, a patch by Josef Bacik was an attempt for fixing this, but no one
reported about testing it on an affected system, it did not eliminate
the slowdowns for me:
PLEASE TEST: Everybody who is seeing weird and long hangs
news://news.gmane.org:119/4e36c47e
Are these processes principally btrfs-submit and btrfs-transacti in
particular?
Then it may be related to my very similar issue reported earlier.
On 08/18/2011 08:47 AM, Chris Samuel wrote:
> On 18/08/11 00:29, Michael Cronenworth wrote:
>
>> I'm running kernel 3.0 (Fedora 15's 2.6.40) on two b
On 18/08/11 00:29, Michael Cronenworth wrote:
> I'm running kernel 3.0 (Fedora 15's 2.6.40) on two boxes
> and I have not seen slow downs or hangs. I use Firefox.
I've got btrfs on an external USB drive with the 3.0.1 kernel and
I see that sync seems to take an age, according to iotop it seems
th
This is most probably related to the same regression seen after 2.6.38,
my blocked comment on 3 August included an indication to that the
behavior was present in my distro 2.6.38 kernel too, it just was
appearing after a considerably longer uptime (on my desktop system using
btrfs as rootfs on an I
Dave,
good to have a test case on the 3.0 kernel. do you have btrfs as
root fs ? and
can you show how are you using the btrfs mainly I would need
'btrfs fi show' let me try if I can reproduce.
Thanks, Anand
I've been simply living with this issue. I can reproduce it by rsyncing very
la
On Wed, Aug 17, 2011 at 10:38:42AM -0400, Andrew Guertin wrote:
> Well I'd expect it to be somewhat uncommon, or it wouldn't survive 3
> kernel versions :) But at least 3 people have reported it, and for me at
> least it's reliably reproducible enough to bisect, so I'm quite certain
> there's somet
On 08/17/2011 10:29 AM, Michael Cronenworth wrote:
> Andrew Guertin on 08/17/2011 09:24 AM wrote:
>> I (and presumably others) haven't
>> been able to upgrade my kernel past 2.6.38 because of this.
>
> I'm running kernel 3.0 (Fedora 15's 2.6.40) on two boxes and I have not
> seen slow downs or han
Andrew Guertin on 08/17/2011 09:24 AM wrote:
I (and presumably others) haven't
been able to upgrade my kernel past 2.6.38 because of this.
I'm running kernel 3.0 (Fedora 15's 2.6.40) on two boxes and I have not
seen slow downs or hangs. I use Firefox.
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On 08/09/2011 05:29 PM, Andrew Guertin wrote:
> On 06/21/2011 01:15 PM, Jan Stilow wrote:
>> Hello,
>>
>> Nirbheek Chauhan gentoo.org> writes:
>>> [...]
>>>
>>> Every few minutes, (I guess) when applications do fsync (firefox,
>>> xchat, vim, etc), all applications that use fsync() hang for severa
On 08/09/2011 05:29 PM, Andrew Guertin wrote:
> I have not tried 3.1-rc1, but plan to soon.
I've tested now, this does still occur in 3.1-rc1.
--Andrew
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On 06/21/2011 01:15 PM, Jan Stilow wrote:
> Hello,
>
> Nirbheek Chauhan gentoo.org> writes:
>> [...]
>>
>> Every few minutes, (I guess) when applications do fsync (firefox,
>> xchat, vim, etc), all applications that use fsync() hang for several
>> seconds, and applications that use general IO suf
On Mon, 2011-07-18 at 14:17 -0400, Josef Bacik wrote:
> I've been looking into this and I have a suspicion. Would you run
> with this patch and see if the problem goes away?
Didn't help me.
2.6.39 is not usable. 3.0.0 is ok for a few hours then too becomes
unusable. This is discussed in future
On Mon, Jul 18, 2011 at 11:47 PM, Josef Bacik wrote:
> On 06/06/2011 06:58 PM, Nirbheek Chauhan wrote:
>> What can I do to debug this issue? What other information should I
>> supply? Could someone guide me on how to figure out why my machine is
>> unusable now?
>
> I've been looking into this and
On 06/06/2011 06:58 PM, Nirbheek Chauhan wrote:
> Hello list,
>
> I've been using btrfs on my personal machines for about two years now,
> and on this machine for about a year with absolutely no problems.
> Infact, it has held up better than ext4 with regards to reliability.
>
> However, recently
On Tue, 2011-06-07 at 04:28 +0530, Nirbheek Chauhan wrote:
> Every few minutes, (I guess) when applications do fsync (firefox,
> xchat, vim, etc), all applications that use fsync() hang for several
> seconds, and applications that use general IO suffer extreme
> slowdowns. iotop shows various combi
Hello,
Nirbheek Chauhan gentoo.org> writes:
> However, recently, perhaps with 2.6.39, or after I quickly started
> filling up my disk again, it has become impossible for me to work for
> long periods on my machine.
>
> Every few minutes, (I guess) when applications do fsync (firefox,
> xchat, vim
Hello list,
I've been using btrfs on my personal machines for about two years now,
and on this machine for about a year with absolutely no problems.
Infact, it has held up better than ext4 with regards to reliability.
However, recently, perhaps with 2.6.39, or after I quickly started
filling up m
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