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Re: [PATCH 33/49] ext4: Add the journal checksum feature

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From: Andreas Dilger <adilger@...>
To: Andrew Morton <akpm@...>
Cc: Theodore Ts'o <tytso@...>, <linux-kernel@...>, <girish@...>, <adilger@...>, <shaggy@...>, <cmm@...>, linux-ext4@vger.kernel.org <linux-ext4@...>
Subject: Re: [PATCH 33/49] ext4: Add the journal checksum feature
Date: Wednesday, January 23, 2008 - 6:40 pm

On Jan 23, 2008  14:07 -0800, Andrew Morton wrote:

Yes, this was found during system testing.  While ext3/4 will only allocate
buffer heads in lowmem, the jbd/jbd2 code can allocate buffers in highmem.
I was surprised about this also.

Please see the thread in ext4-devel:
[PATCH][RFC]JBD2: Fix journal checksum kernel oops on NUMA

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

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Messages in current thread:
[PATCH 33/49] ext4: Add the journal checksum feature, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
Re: [PATCH 33/49] ext4: Add the journal checksum feature, Andrew Morton, (Wed Jan 23, 6:07 pm)
Re: [PATCH 33/49] ext4: Add the journal checksum feature, Mingming Cao, (Thu Jan 24, 5:24 pm)
Re: [PATCH 33/49] ext4: Add the journal checksum feature, Girish Shilamkar, (Fri Feb 1, 4:50 pm)
Re: [PATCH 33/49] ext4: Add the journal checksum feature, Andreas Dilger, (Wed Jan 23, 6:40 pm)
[PATCH 34/49] vfs: Add 64 bit i_version support, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 35/49] ext4: Add inode version support in ext4, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
Re: [PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl, Andrew Morton, (Wed Jan 23, 6:07 pm)
Re: [PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl, Aneesh Kumar K.V, (Thu Jan 24, 1:55 am)
Re: [PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl, Theodore Tso, (Sat Jan 26, 12:15 am)
Re: [PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl, Aneesh Kumar K.V, (Sat Jan 26, 4:42 am)
[PATCH 37/49] ext4: Fix ext4_show_options to show the correc..., Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 38/49] ext4: fix up EXT4FS_DEBUG builds, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 39/49] ext4: Add ext4_find_next_bit(), Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 40/49] ext4: Add new functions for searching extent t..., Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 41/49] ext4: Add multi block allocator for ext4, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Eric Sandeen, (Mon Jan 28, 2:45 pm)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Andrew Morton, (Wed Jan 23, 6:07 pm)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Aneesh Kumar K.V, (Thu Jan 24, 3:56 am)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Aneesh Kumar K.V, (Thu Jan 24, 10:53 am)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Aneesh Kumar K.V, (Thu Jan 24, 5:04 am)
Re: [PATCH 41/49] ext4: Add multi block allocator for ext4, Andreas Dilger, (Wed Jan 23, 7:20 pm)
[PATCH 42/49] ext4: Enable the multiblock allocator by default, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 43/49] ext4: Check for return value from sb_set_block..., Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 44/49] ext4: fix uniniatilized extent splitting error, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 45/49] ext4: Use the ext4_ext_actual_len() helper fun..., Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 46/49] jbd2: add lockdep support, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 47/49] jbd2: Mark jbd2 slabs as SLAB_TEMPORARY, Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 48/49] jbd2: Use round-jiffies() function for the "5 ..., Theodore Ts'o, (Mon Jan 21, 11:02 pm)
[PATCH 49/49] jbd2: sparse pointer use of zero as null, Theodore Ts'o, (Mon Jan 21, 11:02 pm)