Problems with 2.6.7-mm1 on HP Omnibook 6100
From: Martin Knoblauch (knobi_at_knobisoft.de)
Date: 06/21/04
- Previous message: Eric BEGOT: "Re: 2.6.7-mm1"
- Next in thread: Martin Knoblauch: "Re: Problems with 2.6.7-mm1 on HP Omnibook 6100"
- Maybe reply: Martin Knoblauch: "Re: Problems with 2.6.7-mm1 on HP Omnibook 6100"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Mon, 21 Jun 2004 08:00:29 -0700 (PDT) To: linux-kernel@vger.kernel.org
Hi,
after going from 2.6.6-mm5 to 2.6.7-mm1, I see the following problems.
a) System hangs at boot. Local APIC related. This is a known problem on
the OB, but could be avoided by specifying "nolapic" in 2.6.6-mm5. With
2.6.7-mm1 I have to specify "acpi=off", or apply the following patch
from Len:
--- 1.53/arch/i386/kernel/apic.c Tue Mar 2 22:06:19 2004
+++ edited/arch/i386/kernel/apic.c Sat Apr 24 01:14:59 2004
@@ -654,6 +654,7 @@
}
if (!cpu_has_apic) {
+printk("LENB: !cpu_has_apic\n");
/*
* Some BIOSes disable the local APIC in the
* APIC_BASE MSR. This can only be done in
@@ -661,6 +662,8 @@
*/
rdmsr(MSR_IA32_APICBASE, l, h);
if (!(l & MSR_IA32_APICBASE_ENABLE)) {
+printk("LENB: NOT reenabling LAPIC\n");
+goto no_apic;
printk("Local APIC disabled by BIOS --
reenabling.\n");
l &= ~MSR_IA32_APICBASE_BASE;
l |= MSR_IA32_APICBASE_ENABLE |
APIC_DEFAULT_PHYS_BASE;
Interestingly, "nolapic" still makes a difference when Lens patch is
not installed. Without it, the boot process hangs at the same place as
in 2.6.6/2.6.6-mm5 - just after these lines in dmesg:
>>>
ACPI: Subsystem revision 20040326
ACPI: IRQ9 SCI: Edge set to Level Trigger.
ACPI-0179: *** Warning: The ACPI AML in your computer contains
errors, please nag the manufacturer to correct it.
ACPI-0182: *** Warning: Allowing relaxed access to fields; turn on
CONFIG_ACPI_DEBUG for details.
<<<
With "nolapic" it now hangs after the following output:
>>>
Checking if this processor honours the WP bit even in supervisor
mode... Ok.
Calibrating delay loop...
<<<
It never displays the Bogomips.
b) The system does not shut down (or reboot) any more. The last output
is:
ISDN-subsystem unloaded
Sometimes CTRL-ALT-DEL helps to bring the system down, sometimes I
just have to reset it.
So, it seems that 2.6.7-mm1 is not the most lucky of all releases. I
have not tested 2.6.7 vanilla. I would "prefer" not to, as the Onmibook
is dog slow compiling kernels :-(
"dmesg" (with lens patch) and ".config" attached.
Cheers
Martin
=====
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
-
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/
- application/octet-stream attachment: dmesg-2.6.7-mm1
- application/octet-stream attachment: .config
- Previous message: Eric BEGOT: "Re: 2.6.7-mm1"
- Next in thread: Martin Knoblauch: "Re: Problems with 2.6.7-mm1 on HP Omnibook 6100"
- Maybe reply: Martin Knoblauch: "Re: Problems with 2.6.7-mm1 on HP Omnibook 6100"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
