linux-kernel - Re: [GIT PULL] bzip2/lzma kernel compression

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Date:	Fri, 9 Jan 2009 12:52:53 -0800
From:	"Yinghai Lu" <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>, "Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>
Cc:	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, "Alain Knaff" <alain@...ff.lu>,
	"Sam Ravnborg" <sam@...nborg.org>
Subject: Re: [GIT PULL] bzip2/lzma kernel compression

On Fri, Jan 9, 2009 at 10:45 AM, H. Peter Anvin <hpa@...or.com> wrote:
> Hi Linus,
>
> This tree contains the bzip2 and LZMA kernel compression work that
> Alain Knaff has done.  Sending this as a separate pull request in case
> you think that it is too late or immature for this cycle.
>
> The good part is that it is a highly "brittle" feature -- if it fails,
> it will fail noisily and obviously.
>
> I have not included the ARM parts that Alain developed; I will leave
> those to be fed through rmk.
>
> One of the main attractions of this patchset is that it uses the newer
> lib/zlib_inflate code even for the kernel decompressor.  Once all
> architectures that use the older lib/inflate.c have been converted
> over, we can remove that code entirely.

it seems still have some problem
mydisk13_x86_64.lzma is by lzma -9

[   47.404316] RAMDISK: lzma image found at block 0
[   51.676838] RAMDISK: incomplete write (-28 != 130)
[   51.894794] calling  5_generic_delete_inode_async+0x0/0xa9 @ 2316
[   51.900895] initcall 5_generic_delete_inode_async+0x0/0xa9 returned
0 after 3 usecs
[   51.901117] kjournald starting.  Commit interval 5 seconds
[   51.901130] EXT3 FS on ram0, internal journal
[   51.901138] EXT3-fs: mounted filesystem with ordered data mode.
[   51.901151] VFS: Mounted root (ext3 filesystem) on device 1:0.
[   51.901168] async_waiting @ 1
[   51.904191] calling  6_generic_delete_inode_async+0x0/0xa9 @ 2317
[   51.907123] initcall 6_generic_delete_inode_async+0x0/0xa9 returned
0 after 2861 usecs
[   51.947093] async_continuing @ 1 after 44846 usec
[   51.951839] Freeing unused kernel memory: 448k freed
[   51.957245] init_special_inode: bogus i_mode (4467)
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