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Date: Tue, 17 Oct 2006 15:23:47 +0100
From: Andy Whitcroft <apw@shadowen.org>
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To: Andrew Morton <akpm@osdl.org>
CC: linux-kernel@vger.kernel.org, Steve Fox <drfickle@us.ibm.com>
Subject: Re: 2.6.19-rc2-mm1
References: <20061016230645.fed53c5b.akpm@osdl.org>
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Seeing this on a couple of x86_64's so far, probabally widespread:

BUG: warning at fs/inode.c:1389/i_size_write()

elm3b6:

Call Trace:
 [<ffffffff8028207d>] i_size_write+0x51/0x73
 [<ffffffff8028ddfb>] generic_commit_write+0x35/0x49
 [<ffffffff802e78d1>] ext2_commit_chunk+0x32/0x6d
 [<ffffffff802e86a0>] ext2_make_empty+0x160/0x179
 [<ffffffff802eb734>] ext2_mkdir+0xb5/0x121
 [<ffffffff80278926>] vfs_mkdir+0x6a/0xaa
 [<ffffffff80278a12>] sys_mkdirat+0xac/0xfd
 [<ffffffff80272607>] vfs_stat+0x14/0x16
 [<ffffffff8021b703>] sys32_stat64+0x1a/0x34
 [<ffffffff80278a76>] sys_mkdir+0x13/0x15
 [<ffffffff8021b212>] ia32_sysret+0x0/0xa

This first one does not look so unreasonable, the inode is new and has
not yet been instantiated?  But I'm no fs locking expert ...

BUG: warning at fs/inode.c:1389/i_size_write()

bl6-13:

Call Trace:
 [<ffffffff80298a44>] i_size_write+0x45/0x57
 [<ffffffff802a116b>] simple_commit_write+0x3b/0x47
 [<ffffffff8028d96b>] __page_symlink+0xb5/0x150
 [<ffffffff8030b742>] ramfs_symlink+0x4d/0xb7
 [<ffffffff8028e547>] vfs_symlink+0xd4/0x144
 [<ffffffff80290d4e>] sys_symlinkat+0x86/0xd2
 [<ffffffff808e3c33>] do_header+0x70/0x1d2
 [<ffffffff808e2bd5>] do_symlink+0x4b/0x7b
 [<ffffffff808e2a55>] write_buffer+0x1d/0x2b
 [<ffffffff808e2acf>] flush_window+0x6c/0xca
 [<ffffffff808e3097>] inflate_codes+0x38f/0x3ec
 [<ffffffff808e428a>] inflate_dynamic+0x4f5/0x541
 [<ffffffff808e479a>] unpack_to_rootfs+0x4c4/0x923
 [<ffffffff808e4c83>] populate_rootfs+0x8a/0xde
 [<ffffffff8020715a>] init+0x114/0x346
 [<ffffffff8020a925>] child_rip+0xa/0x15
 [<ffffffff803e0d6e>] acpi_ds_init_one_object+0x0/0x82
 [<ffffffff803e0d6e>] acpi_ds_init_one_object+0x0/0x82
 [<ffffffff80207046>] init+0x0/0x346
 [<ffffffff8020a91b>] child_rip+0x0/0x15

-apw
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