Messages in this thread | | | From | Ricardo Galli <> | Subject | O_DIRECT fails in some kernel and FS | Date | Fri, 1 Feb 2002 21:37:05 +0100 |
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After some comments from Oliver Diedrich (editor of heise.de), which told me he couldn't make O_DIRECT work on 2.4.17, I tried with different versions and file systems:
This is the result:
2.4.14 - Ext[23] - redhat7.2 glibs: OK (at least the bytes are written) 2.4.17 - ReiserFS - Debian Sid : FAILS (0 bytes file, write returns -1) 2.4.17 - Ext2 - Debian Woody : OK (bytes written) 2.4.17 - Ext3 - Debian Woody : FAILS (0 bytes file, write returns -1)
Oliver Diedrich also told he could make work O_DIRECT with ext3 and 2.4.17.
Is this normal? Does it really work on 2.4.14? Or it doesn't but the kernel doesn't avoid caching?
Funny behaviour...
Regards,
-- ricardo "I just stopped using Windows and now you tell me to use Mirrors?" - said Aunt Tillie, just before downloading 2.5.3 kernel. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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