- 17 Apr, 2008 40 commits
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Alok Kataria authored
> > Make sure that we clear the "shutdown status flag" in the CMOS > > register after each CPU is brought up. This fixes a problem where the > > "shutdown status flag" may remain set when a CPU is brought up after > > booting. > > btw., what problem does this result in, exactly? The shutdown status flag set to "0xA", corresponds to "JMP double word request without INT init". This JMP at reboot time is at an unintended location. And results in Triple faults in our case. Though this error at reboot can be safely ignored in a VM environment, am not sure what the effect would be on a physical system. May be it will result in a triple fault and an eventual hardware reset thus masking this BUG in the kernel. This fix just makes sure that we reset that status flag after initialization is done. Fix paranoia about using BIOS quickboot mechanism. Make sure that we clear the "shutdown status flag" in the CMOS register after each CPU is brought up. This fixes a problem where the "shutdown status flag" may remain set when a CPU is brought up after booting. Signed-off-by:
Alok N Kataria <akataria@vmware.com> Signed-off-by:
Dan Arai <arai@vmware.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Yinghai Lu authored
print out buggy mptable, instead of skipping it quietly Signed-off-by:
Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by:
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Akinobu Mita authored
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Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by:
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Akinobu Mita authored
Use cpumask_of_cpu() rather than the pair of cpus_clear() and cpu_set(). Signed-off-by:
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Akinobu Mita authored
There is no reason to use obscurer name. Signed-off-by:
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Akinobu Mita authored
No need to clear the memory allocated by alloc_bootmem(). It is already filled with zero. Signed-off-by:
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Akinobu Mita authored
Remove duplicate code by using ioapic_read_entry() and ioapic_write_entry() in io_apic_{32,64}.c Signed-off-by: -
Akinobu Mita authored
If one can find an ack pending pin, there is no need to check the rest of them. Signed-off-by:
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Alexander van Heukelum authored
In arch/x86/boot/compressed/misc.c, the variable vidmem is the only variable that ends up in de data segment. It's also superfluous, because the first thing the code does is: if (RM_SCREEN_INFO.orig_video_mode == 7) { vidmem = (char *) 0xb0000; vidport = 0x3b4; } else { vidmem = (char *) 0xb8000; vidport = 0x3d4; } This patch removes the initialisation. Signed-off-by: -
Alexey Starikovskiy authored
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Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by:
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Ingo Molnar authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Ingo Molnar authored
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Randy Dunlap authored
without this patch: VOYAGER: kernel/built-in.o: In function `crash_kexec': (.text+0x28588): undefined reference to `machine_crash_shutdown' VISWS: kernel/built-in.o: In function `crash_kexec': /next-20080401/kernel/kexec.c:1074: undefined reference to `machine_crash_shutdown' make[1]: *** [.tmp_vmlinux1] Error 1 because arch/x86/kernel/reboot.c isn't built since CONFIG_X86_BIOS_REBOOT=n, so machine_crash_shutdown() isn't available. This patch does seem a small bit odd since the KEXEC help text says that kexec is independent of the system firmware. Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Hugh Dickins authored
I've now noticed that the machine I call MPENTIUM4 for 32-bit kernels is called MPSC for 64-bit kernels, and in that case it still doesn't get the P6 NOPs it ought to. hpa explains that MK8 should still be excluded, so it's just a matter of including MPSC along with MPENTIUM4. Signed-off-by:
Hugh Dickins <hugh@veritas.com> Acked-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
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