ext2 errors under fsx with 2.5.12-dj1.

From: Dave Jones (davej@suse.de)
Date: Thu May 02 2002 - 09:32:50 EST


Hi Andreas,
 Under a stress test of multiple fsx's, the following messages
appeared..

EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 2553887680, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 67108864, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 1048576, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 1048576, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 16777216, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 16777216, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 2375129740, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 1598358905, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 15730344, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 4125625412, count = 1
EXT2-fs error (device ide0(3,65)): ext2_free_blocks: Freeing blocks not
in datazone - block = 16777216, count = 1

My tree has the following patch, which I believe you authored, or were
at least involved in..

--- linux-2.5.12/fs/ext2/balloc.c Wed May 1 01:08:55 2002
+++ linux-2.5/fs/ext2/balloc.c Sat Mar 23 22:56:32 2002
@@ -250,8 +250,9 @@
 
    lock_super (sb);
    es = EXT2_SB(sb)->s_es;
- if (block < le32_to_cpu(es->s_first_data_block) ||
- (block + count) > le32_to_cpu(es->s_blocks_count)) {
+ if (block < le32_to_cpu(es->s_first_data_block) ||
+ block + count < block ||
+ block + count > le32_to_cpu(es->s_blocks_count)) {
        ext2_error (sb, "ext2_free_blocks",
                "Freeing blocks not in datazone - "
                "block = %lu, count = %lu", block, count);

Any thoughts ?

        Dave.

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs
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