Messages in this thread | | | Date | Fri, 20 Aug 2004 11:53:51 -0600 | From | martin rumori <> | Subject | Re: problems with volunteer preempt patch WAS: little NPTL SCHED_FIFO test program |
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On Fri, Aug 20, 2004 at 05:42:59AM -0400, Lee Revell wrote: > On Fri, 2004-08-20 at 05:20, martin rumori wrote: > > tried to compile 2.6.8.1 with volunteer-preempt-P5 (latest), but > > wasn't able to boot into the new kernel. shows some lines of ACPI....
> I think you have an off-by-one error. The latest version is -P4.
o.k., you're right. this time it's really -P5 :-)
> Try the 'noacpi' boot option. Also, try disabling all power > management. I know this is not realistic for a laptop, it's just for > debugging purposes.
tried it with the options, no success. built a kernel without powermanagement and without cpu speedstep at all. exactly the same behavior, directly after unpacking the kernel at the beginning of startup:
0 MB highmem 511 mb lowmem available
ACPI RSDP ..... ..... ACPI build 1 zone list Detected Processor... Memory ... ... Checking if processor honors the WP bit even in supervisor mode... ok.
--- that's it. freezes for 1-2 seconds after this last message, then reboots. tried to write down these contents of the screen, as far as i could recognize them during the short period of time.
i am wondering especially about the ACPI messages, as ACPI is completely switched off now.
second (minor) issue: when having enabled CONFIG_PREEMPT_VOLUNTARY(=y) but not CONFIG_PREEMPT_TIMING(=n), i get the following when linking:
LD init/built-in.o LD .tmp_vmlinux1 arch/i386/kernel/built-in.o(.text+0x2da1): In function `do_nmi': : undefined reference to `__trace' arch/i386/kernel/built-in.o(.text+0x342c): In function `do_IRQ': : undefined reference to `__trace' arch/i386/mm/built-in.o(.text+0x705): In function `do_page_fault': : undefined reference to `__trace' make: *** [.tmp_vmlinux1] Error 1
maybe latency.o is not included when linking without CONFIG_PREEMPT_TIMING?
bests,
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