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From: Joerg Roedel <joro@8bytes.org>
To: Baoquan He <bhe@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	Joerg Roedel <jroedel@suse.de>
Subject: Re: [PATCH 0/3 v2] Fix kdump failures with crashkernel=high
Date: Sat, 14 Feb 2015 17:11:35 +0100	[thread overview]
Message-ID: <20150214161135.GJ29106@8bytes.org> (raw)
In-Reply-To: <20150214105834.GA7478@dhcp-17-102.nay.redhat.com>

Hi Baoquan,

On Sat, Feb 14, 2015 at 06:58:34PM +0800, Baoquan He wrote:
> This patch is very helpful and necessary since several users complained
> about the failure caused by not enough low mem. And the default value
> 256M is suitable since the testing data showed it's sufficient
> now and should be save for a long time.
>  
> And it also makes sense to supress the warning from buddy allocation
> failure which will call dump_stack in x86_swiotlb_alloc_coherent. Since
> it tried buddy allocation several times before the final try of bounce
> buffer allocation.
> 
> So ack the whole patch set.
> 
> Acked-by: Baoquan He <bhe@redhat.com> 

Thanks a lot!

> Hi Joerg,
> 
> Thanks for your effort on this issue. 
> 
> Could you please also update the cover letter or patch log to tell
> how 256M comes out with the later test result? I think it is convincing
> and helpful to understand.

Sure thing, will update the patch description before I resend the
series.


Regards,

	Joerg


  reply	other threads:[~2015-02-14 16:11 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-06 14:51 [PATCH 0/3 v2] Fix kdump failures with crashkernel=high Joerg Roedel
2015-01-06 14:51 ` [PATCH 1/3] swiotlb: Warn on allocation failure in swiotlb_alloc_coherent Joerg Roedel
2015-01-23 17:04   ` Borislav Petkov
2015-01-26 11:49     ` Joerg Roedel
2015-01-06 14:51 ` [PATCH 2/3] x86, swiotlb: Try coherent allocations with __GFP_NOWARN Joerg Roedel
2015-01-23 17:03   ` Borislav Petkov
2015-01-26  3:22     ` Baoquan He
2015-01-26 11:54       ` Joerg Roedel
2015-01-06 14:51 ` [PATCH 3/3] x86, crash: Allocate enough low-mem when crashkernel=high Joerg Roedel
2015-01-23  8:44   ` Baoquan He
2015-01-26 12:07     ` Joerg Roedel
2015-02-01  8:41       ` Baoquan He
2015-02-04 14:10         ` Joerg Roedel
2015-02-09 12:20           ` Joerg Roedel
2015-02-13 15:34             ` Baoquan He
2015-02-13 22:28               ` Joerg Roedel
2015-02-14 11:44                 ` Baoquan He
2015-01-23 17:02   ` Borislav Petkov
2015-01-26 12:11     ` Joerg Roedel
2015-01-26 12:20       ` Borislav Petkov
2015-01-26 12:40         ` Joerg Roedel
2015-01-26 12:45           ` Borislav Petkov
2015-01-14 13:35 ` [PATCH 0/3 v2] Fix kdump failures with crashkernel=high Joerg Roedel
2015-01-19 19:26 ` Borislav Petkov
2015-01-19 19:26   ` Borislav Petkov
2015-02-14 10:58 ` Baoquan He
2015-02-14 16:11   ` Joerg Roedel [this message]
2015-06-02  8:54     ` Baoquan He
2015-06-02  9:08       ` Joerg Roedel

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