search for: apic_icr_busi

v2: - fix compile issues if no CONFIG_SMP, Konrad Rzeszutek Wilk - move inc_irq_stat after irq_work_run These 2 patches fixed the "perf top" soft lockups under Xen reported by Steven at: https://lkml.org/lkml/2012/2/9/506 Both Steven and I tested it and "perf top" works well now. The soft lockup code path is: __irq_work_queue arch_irq_work_raise

plain text document attachment (xx-paravirt-apic-header.patch) This patch updates the apic header file for switching apic_read and write for use with paravirt ops. Signed-off-by: Steven Rostedt srostedt@redhat.com Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Index: clean-start/include/asm-x86_64/apic.h =================================================================== ---

plain text document attachment (xx-paravirt-apic-header.patch) This patch updates the apic header file for switching apic_read and write for use with paravirt ops. Signed-off-by: Steven Rostedt srostedt@redhat.com Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Index: clean-start/include/asm-x86_64/apic.h =================================================================== ---

Hi all, These 2 patches try to fix the "perf top" soft lockups under Xen reported by Steven at: https://lkml.org/lkml/2012/2/9/506 I tested it with 3.4-rc2 and "perf top" works well now. Steven, Could you please help to test it too? The soft lockup code path is: __irq_work_queue arch_irq_work_raise apic->send_IPI_self(IRQ_WORK_VECTOR); apic_send_IPI_self

(Forgot mail subject, add it) On Sun, Apr 15, 2012 at 2:09 PM, Lin Ming <mlin@ss.pku.edu.cn> wrote: > Hi all, > > These 2 patches try to fix the "perf top" soft lockups under Xen > reported by Steven at: https://lkml.org/lkml/2012/2/9/506 > > I tested it with 3.4-rc2 and "perf top" works well now. > > Steven, > Could you please help to test it

Move APIC read / write accessors to sub-arch layer. Note that we don't bother to implement apic_write_atomic any different, as it is only present to work around old processor erratums (Pentium Processor Spec update 11AP), and VMI kernels do not offer support for this class of processor. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Daniel Arai <arai@vmware.com>

Move APIC read / write accessors to sub-arch layer. Note that we don't bother to implement apic_write_atomic any different, as it is only present to work around old processor erratums (Pentium Processor Spec update 11AP), and VMI kernels do not offer support for this class of processor. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Daniel Arai <arai@vmware.com>

xen/arch/x86/crash.c | 116 ++++++++++++++++++++++++++++++++++----- xen/arch/x86/machine_kexec.c | 19 ++++++ xen/arch/x86/x86_64/entry.S | 34 +++++++++++ xen/include/asm-x86/desc.h | 45 +++++++++++++++ xen/include/asm-x86/processor.h | 4 + 5 files changed, 203 insertions(+), 15 deletions(-) Experimentally, certain crash kernels will triple fault very early

Hi all, I've been working on a port of paravirt_ops for the x86_64 architectures for a couple of days. Here's the result so far. I'm posting it soon for early cooments. The more, the better. It's obviously based on the previous work for i386, with the needed modifications. By now, I'm able to boot a bare metal kernel, but there are still some known issues, that are in my TODO

Hi all, I've been working on a port of paravirt_ops for the x86_64 architectures for a couple of days. Here's the result so far. I'm posting it soon for early cooments. The more, the better. It's obviously based on the previous work for i386, with the needed modifications. By now, I'm able to boot a bare metal kernel, but there are still some known issues, that are in my TODO