tags 293378 +pending tags 293378 +upstream tags 293378 +patch forwarded [EMAIL PROTECTED] thanks This one time, at band camp, john said: > The command > hdparm -W 0 /dev/hda > does not disable write caching on my hard disk. There is no error > message, but a subsequent > hdparm -I /dev/hda > reports that write caching is still enabled. > > This was working correctly in version 4.5-1.2 (stable) and is > failing in version 5.8-1 (testing). > > This bug is serious because journalled file systems such as ext3 can > only guarantee no data loss/corruption if the hardware write caching is > turned off. So I have marked this bug as "critical".
Bug found, it looks like. Can you test this patch and see if it works
for as well as it does for me?
---------------------------snip-----------------------------------
--- hdparm.c.old 2005-02-03 22:05:19.000000000 -0500
+++ hdparm.c 2005-02-03 22:05:39.000000000 -0500
@@ -912,6 +912,7 @@
}
#ifdef HDIO_SET_WCACHE
if (!ioctl(fd, HDIO_SET_WCACHE, wcache))
+ perror(" HDIO_SET_WCACHE failed");
#endif
if (ioctl(fd, HDIO_DRIVE_CMD, &args))
perror(" HDIO_DRIVE_CMD(setcache) failed");
---------------------------snip-----------------------------------
If so, I'll push it upstream and release a fixed version shortly.
Thanks for reporting,
--
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| ,''`. Stephen Gran |
| : :' : [EMAIL PROTECTED] |
| `. `' Debian user, admin, and developer |
| `- http://www.debian.org |
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