ACPI "blacklist" question

Oliver Fromme olli at lurza.secnetix.de
Fri Sep 19 14:20:32 UTC 2008


John Baldwin wrote:
 > On Wednesday 17 September 2008 07:47:18 am Oliver Fromme wrote:
 > > I have recently updated a machine to 7-stable.
 > > ACPI doesn't seem to work correctly on this machine.
 > > With earlier versions of FreeBSD (including the latest
 > > RELENG_6), I got this line in dmesg:
 > > 
 > >    ACPI disabled by blacklist.  Contact your BIOS vendor.
 > > 
 > > And everything was fine.  The box runs perfectly well
 > > with ACPI disabled.  (I can't get a BIOS update because
 > > the mainboard is too old.)
 > > 
 > > When I updated to RELENG_7 a few days ago, the above line
 > > did _not_ appear anymore, and the machine didn't proceed
 > > [...]
 > 
 > This is a regression.  Try this fix:
 > 
 > Index: acpi_quirk.c
 > ===================================================================
 > --- acpi_quirk.c        (revision 183112)
 > +++ acpi_quirk.c        (working copy)
 > @@ -149,9 +149,9 @@
 >      if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_FADT, 0, &fadt)))
 >         bzero(&fadt, sizeof(fadt));
 >      if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_DSDT, 0, &dsdt)))
 > -       bzero(&fadt, sizeof(dsdt));
 > +       bzero(&dsdt, sizeof(dsdt));
 >      if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_XSDT, 0, &xsdt)))
 > -       bzero(&fadt, sizeof(xsdt));
 > +       bzero(&xsdt, sizeof(xsdt));
 >  
 >      /* Then, override the quirks with any matched from table signatures. */
 >      for (entry = acpi_quirks_table; entry->match; entry++) {

The patch fixes the problem.  The blacklist message is
now back again, and the machine boots without hints
right out of the box.  Thanks!

Best regards
   Oliver

-- 
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
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start asking why software is ignoring 30 years of accumulated wisdom.'


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