Hi all,
2.6.21-rc4-git7 doesn't work on my laptop, git6 was OK. Symptop: the
machine freezes as Xorg is started. A bisection led me there:
25496caec111481161e7f06bbfa12a533c43cc6f is first bad commit
commit 25496caec111481161e7f06bbfa12a533c43cc6f
Author: Thomas Renninger <[EMAIL PROTECTED]>
Date: Tue Feb 27 12:13:00 2007 -0500
ACPI: Only use IPI on known broken machines (AMD, Dothan/BaniasPentium M)
Use IPI for blacklisted CPUs, add parameter IPI vs LAPIC
Currently, Linux disables lapic timer for all machines with C2 and higher
C-state support.
According to Intel only specific Intel models (Banias/Dothan) are broken
in respect of not waking up from C2 with lapic.
However, I am not sure about the naming of the parameter and how it
could/should get integrated into the dyntick part
(CONFIG_GENERIC_CLOCKEVENTS). There, a more fine grained check (TSC
still running?, ..) is needed? Does this make sense (always use
CLOCK_EVT_NOTIFY_BROADCAST_ON, but use OFF if forced by use_ipi=0:
clockevents_notify(use_ipi ? CLOCK_EVT_NOTIFY_BROADCAST_ON :
CLOCK_EVT_NOTIFY_BROADCAST_OFF, &pr->id);
Signed-off-by: Thomas Renninger <[EMAIL PROTECTED]>
Signed-off-by: Len Brown <[EMAIL PROTECTED]>
:040000 040000 f089eab6ed1e602029c532d828e7d7a2e46e51af
d639f8aa8676fee0bf0b868fe20151712f3a530c M drivers
My laptop's CPU is:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Pentium(R) III Mobile CPU 866MHz
stepping : 1
cpu MHz : 864.500
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 mmx fxsr sse
bogomips : 1724.04
clflush size : 32
Thomas, Len, any idea? I can help with testing as needed.
--
Jean Delvare
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