From: Michael Ellerman <mpe@ellerman.id.au>
To: Hugh Dickins <hughd@google.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Paul Mackerras <paulus@ozlabs.org>,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Subject: Re: Problems with swapping in v4.5-rc on POWER
Date: Mon, 07 Mar 2016 14:00:27 +1100 [thread overview]
Message-ID: <1457319627.19197.1.camel@ellerman.id.au> (raw)
In-Reply-To: <alpine.LSU.2.11.1603040948250.5477@eggly.anvils>
On Fri, 2016-03-04 at 09:58 -0800, Hugh Dickins wrote:
>
> The alternative bisection was as unsatisfactory as the first:
> again it fingered an irrelevant merge (rather than any commit
> pulled in by that merge) as the bad commit.
>
> It seems this issue is too intermittent for bisection to be useful,
> on my load anyway.
Darn. Thanks for trying.
> The best I can do now is try v4.4 for a couple of days, to verify that
> still comes out good (rather than the machine going bad coincident with
> v4.5-rc), then try v4.5-rc7 to verify that that still comes out bad.
Thanks, that would still be helpful.
> I'll report back on those; but beyond that, I'll have to leave it to you.
I haven't had any luck here :/
Can you give us a more verbose description of your test setup?
- G5, which exact model?
- 4k pages, no THP.
- how much ram & swap?
- building linus' tree, make -j ?
- source and output on tmpfs? (how big?)
- what device is the swap device? (you said SSD I think?)
- anything else I've forgotten?
Oh and can you send us your bisect logs, we can at least trust the bad results
I think.
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Hugh Dickins <hughd@google.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Paul Mackerras <paulus@ozlabs.org>,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Subject: Re: Problems with swapping in v4.5-rc on POWER
Date: Mon, 07 Mar 2016 14:00:27 +1100 [thread overview]
Message-ID: <1457319627.19197.1.camel@ellerman.id.au> (raw)
In-Reply-To: <alpine.LSU.2.11.1603040948250.5477@eggly.anvils>
On Fri, 2016-03-04 at 09:58 -0800, Hugh Dickins wrote:
>
> The alternative bisection was as unsatisfactory as the first:
> again it fingered an irrelevant merge (rather than any commit
> pulled in by that merge) as the bad commit.
>
> It seems this issue is too intermittent for bisection to be useful,
> on my load anyway.
Darn. Thanks for trying.
> The best I can do now is try v4.4 for a couple of days, to verify that
> still comes out good (rather than the machine going bad coincident with
> v4.5-rc), then try v4.5-rc7 to verify that that still comes out bad.
Thanks, that would still be helpful.
> I'll report back on those; but beyond that, I'll have to leave it to you.
I haven't had any luck here :/
Can you give us a more verbose description of your test setup?
- G5, which exact model?
- 4k pages, no THP.
- how much ram & swap?
- building linus' tree, make -j ?
- source and output on tmpfs? (how big?)
- what device is the swap device? (you said SSD I think?)
- anything else I've forgotten?
Oh and can you send us your bisect logs, we can at least trust the bad results
I think.
cheers
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2016-03-07 3:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-25 2:10 Problems with swapping in v4.5-rc on POWER Hugh Dickins
2016-02-25 2:10 ` Hugh Dickins
2016-02-25 4:12 ` Michael Ellerman
2016-02-25 4:12 ` Michael Ellerman
2016-02-25 5:36 ` Hugh Dickins
2016-02-25 5:36 ` Hugh Dickins
2016-02-25 4:52 ` Aneesh Kumar K.V
2016-02-25 4:52 ` Aneesh Kumar K.V
2016-02-25 5:43 ` Hugh Dickins
2016-02-25 5:43 ` Hugh Dickins
2016-02-25 21:35 ` Hugh Dickins
2016-02-25 21:35 ` Hugh Dickins
2016-02-26 10:04 ` Hugh Dickins
2016-02-26 10:04 ` Hugh Dickins
2016-03-02 20:49 ` Hugh Dickins
2016-03-02 20:49 ` Hugh Dickins
2016-03-03 5:51 ` Michael Ellerman
2016-03-03 5:51 ` Michael Ellerman
2016-03-04 17:58 ` Hugh Dickins
2016-03-04 17:58 ` Hugh Dickins
2016-03-07 3:00 ` Michael Ellerman [this message]
2016-03-07 3:00 ` Michael Ellerman
2016-03-08 11:49 ` Hugh Dickins
2016-03-08 11:49 ` Hugh Dickins
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1457319627.19197.1.camel@ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=hughd@google.com \
--cc=linux-mm@kvack.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=paulus@ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.