Messages in this thread | | | Subject | Re: [PATCH] 2.4.27-rc1 i386 and x86_64 ACPI mpparse timer bug | From | Len Brown <> | Date | 21 Jun 2004 16:00:51 -0400 |
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Thanks Mikael, Hans, you got it right.
-Len
On Sun, 2004-06-20 at 19:55, Mikael Pettersson wrote: > 2.4.27-rc1 reintroduced the double-speed timer ACPI bug. > Both x86-64 and i386 are affected. > > The patch below fixes it on my box. It's a backport of a > patch Hans-Frieder Vogt made for 2.6.7-bk2, extended to > also handle i386. > > /Mikael Pettersson > > diff -ruN linux-2.4.27-rc1/arch/i386/kernel/mpparse.c linux-2.4.27-rc1.mpparse-fix/arch/i386/kernel/mpparse.c > --- linux-2.4.27-rc1/arch/i386/kernel/mpparse.c 2004-06-21 00:39:30.000000000 +0200 > +++ linux-2.4.27-rc1.mpparse-fix/arch/i386/kernel/mpparse.c 2004-06-21 00:50:01.000000000 +0200 > @@ -1211,7 +1211,7 @@ > > for (idx = 0; idx < mp_irq_entries; idx++) > if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS && > - (mp_irqs[idx].mpc_dstapic == ioapic) && > + (mp_irqs[idx].mpc_dstapic == mp_ioapics[ioapic].mpc_apicid) && > (mp_irqs[idx].mpc_srcbusirq == i || > mp_irqs[idx].mpc_dstirq == i)) > break; > diff -ruN linux-2.4.27-rc1/arch/x86_64/kernel/mpparse.c linux-2.4.27-rc1.mpparse-fix/arch/x86_64/kernel/mpparse.c > --- linux-2.4.27-rc1/arch/x86_64/kernel/mpparse.c 2004-06-21 00:39:30.000000000 +0200 > +++ linux-2.4.27-rc1.mpparse-fix/arch/x86_64/kernel/mpparse.c 2004-06-21 00:50:01.000000000 +0200 > @@ -866,7 +866,7 @@ > > for (idx = 0; idx < mp_irq_entries; idx++) > if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS && > - (mp_irqs[idx].mpc_dstapic == ioapic) && > + (mp_irqs[idx].mpc_dstapic == intsrc.mpc_dstapic) && > (mp_irqs[idx].mpc_srcbusirq == i || > mp_irqs[idx].mpc_dstirq == i)) > break;
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