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From: Wei Liu <wei.liu2@citrix.com>
To: Ian Campbell <ian.campbell@citrix.com>
Cc: Juergen Gross <jgross@suse.com>, Wei Liu <wei.liu2@citrix.com>,
	stefano.stabellini@eu.citrix.com, ian.jackson@eu.citrix.com,
	xen-devel@lists.xen.org,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	roger.pau@citrix.com
Subject: Re: [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported
Date: Wed, 25 Nov 2015 16:31:56 +0000	[thread overview]
Message-ID: <20151125163156.GG15747@citrix.com> (raw)
In-Reply-To: <1448468953.17688.139.camel@citrix.com>

On Wed, Nov 25, 2015 at 04:29:13PM +0000, Ian Campbell wrote:
> On Wed, 2015-11-25 at 16:18 +0000, Wei Liu wrote:
> > On Wed, Nov 25, 2015 at 11:12:12AM -0500, Boris Ostrovsky wrote:
> > > On 11/12/2015 08:43 AM, Juergen Gross wrote:
> > > > In case the kernel of a new pv-domU indicates it is supporting an
> > > > unmapped initrd, don't waste precious virtual space for the initrd,
> > > > but allocate only guest physical memory for it.
> > > 
> > > This patch breaks 32-bit pygrub.
> > > 
> > 
> > This particular patch?
> > 
> > We discovered a bug in mini-os that caused 32-bit pygrub to break withi
> > this series. It's now fixed in mini-os upstream.  Check Config.mk for
> > mini-os commit that fixes the bug.
> 
> Are we really talking about pygrub here, or pvgrub? (the former is
> unaffected by mini-os).
> 

Duh! I misread again.

Boris, can you clarify this?

> If we are really talking about pygrub then we are _actually_ talking about
> the domain builder when operating on the RHEL5 kernel+initrd -- the fact
> ithat they were extracted from the guest filesystem by pygrub is
> irrelevant.
> 
> > > With RHEL5 I get
> > >     initrd extends beyond end of memory (0x780080eda000 > 0x40000000)
> 
> This is reported within the guest, right?
> 
> Ian.

  reply	other threads:[~2015-11-25 16:31 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-12 13:43 [PATCH v5 0/9] libxc: support building large pv-domains Juergen Gross
2015-11-12 13:43 ` [PATCH v5 1/9] libxc: reorganize domain builder guest memory allocator Juergen Gross
2015-11-12 13:48   ` Wei Liu
2015-11-12 14:03     ` Juergen Gross
2015-11-12 14:47       ` Wei Liu
2015-11-12 14:47       ` Ian Campbell
2015-11-12 14:48         ` Wei Liu
2015-11-12 15:27         ` Juergen Gross
2015-11-12 15:55           ` Wei Liu
2015-11-13  4:41             ` Juergen Gross
2015-11-13  9:28             ` Ian Campbell
2015-11-13 11:13               ` Wei Liu
2015-11-12 13:43 ` [PATCH v5 2/9] xen: add generic flag to elf_dom_parms indicating support of unmapped initrd Juergen Gross
2015-11-12 13:43 ` [PATCH v5 3/9] libxc: rename domain builder count_pgtables to alloc_pgtables Juergen Gross
2015-11-12 13:43 ` [PATCH v5 4/9] libxc: introduce domain builder architecture specific data Juergen Gross
2015-11-12 13:43 ` [PATCH v5 5/9] libxc: use domain builder architecture private data for x86 pv domains Juergen Gross
2015-11-12 13:43 ` [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported Juergen Gross
2015-11-25 16:12   ` Boris Ostrovsky
2015-11-25 16:18     ` Wei Liu
2015-11-25 16:24       ` Boris Ostrovsky
2015-11-25 16:29       ` Ian Campbell
2015-11-25 16:31         ` Wei Liu [this message]
2015-11-25 16:34         ` Boris Ostrovsky
2015-11-26  5:06     ` Juergen Gross
2015-11-26  5:19       ` Juergen Gross
2015-11-26  7:35     ` Juergen Gross
2015-11-30 10:20       ` Wei Liu
2015-11-30 10:23         ` Juergen Gross
2015-11-30 10:29           ` Wei Liu
2015-11-30 10:34           ` Ian Campbell
2015-11-30 10:47             ` Juergen Gross
2015-11-30 10:51               ` Ian Campbell
2015-11-30 10:52                 ` Ian Campbell
2015-11-30 11:03                   ` Juergen Gross
2015-11-30 11:23                     ` Ian Campbell
2015-11-30 12:20                       ` Juergen Gross
2015-11-30 12:35                         ` Ian Campbell
2015-11-30 12:59                           ` Juergen Gross
2015-11-30 13:16                             ` pvgrub "Error 9: Unknown boot failure" booting Debian Jessie kernel (Was: Re: [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported) Ian Campbell
2015-11-30 13:41                               ` Ian Campbell
2015-11-30 14:10                                 ` Ian Campbell
2015-11-30 16:15                                 ` Juergen Gross
2015-11-30 16:25                                   ` Ian Campbell
2015-11-30 16:56                                     ` Ian Campbell
2015-12-01  7:15                                       ` Juergen Gross
2015-12-01  7:41                                         ` Juergen Gross
2015-12-01  8:30                                           ` Ian Campbell
2015-12-01  8:53                                             ` Juergen Gross
2015-12-01 10:01                                               ` Ian Campbell
2015-12-01 10:04                                                 ` Ian Campbell
2015-12-01 10:21                                                   ` Wei Liu
2015-12-01 10:31                                                     ` Ian Campbell
2015-12-01 10:33                                                       ` Wei Liu
2015-12-01 10:35                                                         ` Ian Campbell
2015-12-01 10:47                                                 ` Juergen Gross
2015-12-01  8:32                                         ` Ian Campbell
2015-12-01 11:12                                     ` dom builder logging from pvgrub Ian Campbell
2015-12-01 12:17                                       ` Samuel Thibault
2015-11-30 10:57                 ` [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported Juergen Gross
2015-11-30 18:00       ` Boris Ostrovsky
2015-11-12 13:43 ` [PATCH v5 7/9] libxc: split p2m allocation in domain builder from other magic pages Juergen Gross
2015-11-12 13:43 ` [PATCH v5 8/9] libxc: rework of domain builder's page table handler Juergen Gross
2015-11-12 13:47   ` Wei Liu
2015-11-12 13:48     ` Juergen Gross
2015-11-16 13:40       ` Ian Campbell
2015-11-16 14:32         ` Juergen Gross
2015-11-18 16:11   ` Boris Ostrovsky
2015-11-18 16:16     ` Wei Liu
2015-11-18 16:21       ` Boris Ostrovsky
2015-11-19  6:09         ` Juergen Gross
2015-11-19 13:41           ` Boris Ostrovsky
2015-11-12 13:43 ` [PATCH v5 9/9] libxc: create p2m list outside of kernel mapping if supported Juergen Gross

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