[Bug 10216] kernel from different versions hangs with some CD/DVD drives

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http://bugzilla.kernel.org/show_bug.cgi?id=10216





------- Comment #25 from lars.winterfeld@xxxxxxxxxxxxx  2008-11-23 15:18 -------
by looking through the dmesg output, you can see that the patch
http://bugzilla.kernel.org/attachment.cgi?id=18748&action=view did it for me in
all tested versions from 2.6.25 to 2.6.27.
i patched the original kernel ("vanilla-sources" as its called in gentoo) and
different sources which are patched by gentoo-developers. (main drivers part
should be the same...)
i patched drivers/ide/ide-iops.c, drivers/ide/ide-probe.c,
drivers/ide/pci/amd74xx.c as described and include/linux/ide.h like this:
        IDE_HFLAG_NO_UNMASK_IRQS        = (1 << 31),
+       /* AltStatus register can be unreliable*/
+       IDE_HFLAG_BROKEN_ALTSTATUS = IDE_HFLAG_PIO_NO_BLACKLIST,
  };


what is that "Clocksource tsc unstable" about?


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