Re: [PATCH 05/15] Coalesce userspace/kernel irqchip interrupt injection logic.

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Jan Kiszka пишет:
Dmitry Eremin-Solenikov wrote:
Gleb Natapov wrote:
On Wed, Apr 15, 2009 at 01:30:29PM +0400, Dmitry Eremin-Solenikov wrote:
qemu-x86_64 version 0.10.2 running on i386
Due to problems with qemu-x86_64 I have to boot the 'host' kernel
with 'noapic'.
Do you mean boot 'guest' kernel with noapic? The guest is what runs
inside qemu. So you are able to boot guest with 'noapic'?

What is the command line you are using.
Well, since this caused lot's of questions, here is my setup:

Main host: Debian squeeze, kernel 2.6.28 or .29 (doesn't matter),
qemu-system-x86_64 version 0.10.2

KVM kernel run inside qemu: e3dbe3f408a46a045012f1882e9f62b27b8a616c
from Avi's tree (KVM: x86 emulator: fix call near emulation) + these
patches. I have to boot the kernels (both this kernel and 2.6.26 from
debian) with noapic to w/around APIC problems (I dunno if it's qemu or
bochsbios problem).

And the bios you are using with 0.10.2 is from 0.10.2 (when in doubt,
specify explicitly with -bios and/or -L)? Then this would be a QEMU
upstream bug.

Indeed, there seem to be problems with upstream qemu bios. I was using
the image from the debian's bochsbios package. I asked qemu to use the bios from 0.10.2 release and got slightly different messages. Attached
the kernel log

--
With best wishes
Dmitry

Linux version 2.6.29-06626-gb9d7dba (lumag@doriath) (gcc version 4.3.3 (Debian 4.3.3-3) ) #8 SMP Wed Apr 15 15:46:28 MSD 2009
Command line: root=/dev/sda1 ro console=ttyS0 apic=debug debug
KERNEL supported cpus:
  Intel GenuineIntel
  AMD AuthenticAMD
  Centaur CentaurHauls
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
 BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000000fff0000 (usable)
 BIOS-e820: 000000000fff0000 - 0000000010000000 (ACPI data)
 BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved)
DMI 2.4 present.
last_pfn = 0xfff0 max_arch_pfn = 0x100000000
x86 PAT enabled: cpu 0, old 0x0, new 0x7010600070106
init_memory_mapping: 0000000000000000-000000000fff0000
 0000000000 - 000fe00000 page 2M
 000fe00000 - 000fff0000 page 4k
kernel direct mapping tables up to fff0000 @ 8000-b000
last_map_addr: fff0000 end: fff0000
ACPI: RSDP 000FBB80, 0014 (r0 QEMU  )
ACPI: RSDT 0FFF0000, 0034 (r1 QEMU   QEMURSDT        1 QEMU        1)
ACPI: FACP 0FFF0034, 0074 (r1 QEMU   QEMUFACP        1 QEMU        1)
FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4)
ACPI: DSDT 0FFF0100, 080D (r1   BXPC   BXDSDT        1 INTL 20061109)
ACPI: FACS 0FFF00C0, 0040
ACPI: APIC 0FFF0948, 004A (r1 QEMU   QEMUAPIC        1 QEMU        1)
ACPI: SSDT 0FFF090D, 0037 (r1 QEMU   QEMUSSDT        1 QEMU        1)
ACPI: HPET 0FFF0998, 0038 (r1 QEMU   QEMUHPET        1 QEMU        1)
ACPI: Local APIC address 0xfee00000
(5 early reservations) ==> bootmem [0000000000 - 000fff0000]
  #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
  #1 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 - 0000008000]
  #2 [0000200000 - 0000876c54]    TEXT DATA BSS ==> [0000200000 - 0000876c54]
  #3 [000009fc00 - 0000100000]    BIOS reserved ==> [000009fc00 - 0000100000]
  #4 [0000008000 - 0000009000]          PGTABLE ==> [0000008000 - 0000009000]
Scan SMP from ffff880000000000 for 1024 bytes.
Scan SMP from ffff88000009fc00 for 1024 bytes.
Scan SMP from ffff8800000f0000 for 65536 bytes.
found SMP MP-table at [ffff8800000fba60] fba60
 [ffffe20000000000-ffffe200003fffff] PMD -> [ffff880001200000-ffff8800015fffff] on node 0
Zone PFN ranges:
  DMA      0x00000000 -> 0x00001000
  DMA32    0x00001000 -> 0x00100000
  Normal   0x00100000 -> 0x00100000
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000000 -> 0x0000009f
    0: 0x00000100 -> 0x0000fff0
On node 0 totalpages: 65423
  DMA zone: 56 pages used for memmap
  DMA zone: 1756 pages reserved
  DMA zone: 2187 pages, LIFO batch:0
  DMA32 zone: 840 pages used for memmap
  DMA32 zone: 60584 pages, LIFO batch:15
ACPI: PM-Timer IO Port: 0xb008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 1, version 0, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Using ACPI (MADT) for SMP configuration information
ACPI: HPET id: 0x8086a201 base: 0xfed00000
SMP: Allowing 1 CPUs, 0 hotplug CPUs
mapped APIC to ffffffffff5fc000 (fee00000)
mapped IOAPIC to ffffffffff5fb000 (fec00000)
nr_irqs_gsi: 24
Allocating PCI resources starting at 20000000 (gap: 10000000:effc0000)
NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
PERCPU: Embedded 25 pages at ffff880001033000, static data 70880 bytes
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 62771
Kernel command line: root=/dev/sda1 ro console=ttyS0 apic=debug debug
Initializing CPU#0
NR_IRQS:512
PID hash table entries: 1024 (order: 10, 8192 bytes)
Fast TSC calibration using PIT
Detected 1828.564 MHz processor.
Console: colour VGA+ 80x25
console [ttyS0] enabled
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Checking aperture...
No AGP bridge found
Memory: 249848k/262080k available (4048k kernel code, 388k absent, 11528k reserved, 1626k data, 436k init)
SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
hpet clockevent registered
Calibrating delay loop (skipped), value calculated using timer frequency.. 3657.12 BogoMIPS (lpj=7314256)
Mount-cache hash table entries: 256
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
SMP alternatives: switching to UP code
Freeing SMP alternatives: 29k freed
ACPI: Core revision 20081204
Setting APIC routing to flat
Getting VERSION: 50011
Getting VERSION: 50011
Getting ID: 0
Getting ID: ff000000
Getting LVT0: 700
Getting LVT1: 10000
enabled ExtINT on CPU#0
ENABLING IO-APIC IRQs
init IO_APIC IRQs
 1-0 (apicid-pin) not connected
IOAPIC[0]: Set routing entry (1-1 -> 0x31 -> IRQ 1 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-2 -> 0x30 -> IRQ 0 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-3 -> 0x33 -> IRQ 3 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-4 -> 0x34 -> IRQ 4 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-5 -> 0x35 -> IRQ 5 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-6 -> 0x36 -> IRQ 6 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-7 -> 0x37 -> IRQ 7 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-8 -> 0x38 -> IRQ 8 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-9 -> 0x39 -> IRQ 9 Mode:1 Active:1)
IOAPIC[0]: Set routing entry (1-10 -> 0x3a -> IRQ 10 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-11 -> 0x3b -> IRQ 11 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-12 -> 0x3c -> IRQ 12 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-13 -> 0x3d -> IRQ 13 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-14 -> 0x3e -> IRQ 14 Mode:0 Active:0)
IOAPIC[0]: Set routing entry (1-15 -> 0x3f -> IRQ 15 Mode:0 Active:0)
 1-16 1-17 1-18 1-19 1-20 1-21 1-22 1-23 (apicid-pin) not connected
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
..MP-BIOS bug: 8254 timer not connected to IO-APIC
...trying to set up timer (IRQ0) through the 8259A ...
..... (found apic 0 pin 2) ...
....... failed.
...trying to set up timer as Virtual Wire IRQ...
..... failed.
...trying to set up timer as ExtINT IRQ...
..... failed :(.
Kernel panic - not syncing: IO-APIC + timer doesn't work!  Boot with apic=debug and send a report.  Then try booting with the 'noapic' option.

Pid: 1, comm: swapper Not tainted 2.6.29-06626-gb9d7dba #8
Call Trace:
 [<ffffffff805ee186>] ? panic+0x86/0x156
 [<ffffffff80297191>] ? default_enable+0x21/0x40
 [<ffffffff805f0bee>] ? _spin_lock_irqsave+0x2e/0x50
 [<ffffffff8024ccc5>] ? default_spin_lock_flags+0x5/0x10
 [<ffffffff805f0bee>] ? _spin_lock_irqsave+0x2e/0x50
 [<ffffffff804119cd>] ? delay_tsc+0x3d/0x70
 [<ffffffff807c149b>] ? setup_IO_APIC+0x85e/0x9fd
 [<ffffffff805f0b26>] ? __down_read+0xa6/0xc2
 [<ffffffff807bcdb2>] ? native_smp_prepare_cpus+0x2c3/0x351
 [<ffffffff807b2541>] ? kernel_init+0x52/0x1ae
 [<ffffffff80232f2a>] ? child_rip+0xa/0x20
 [<ffffffff807b24ef>] ? kernel_init+0x0/0x1ae
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
------------[ cut here ]------------
WARNING: at kernel/smp.c:329 smp_call_function_many+0x1f9/0x260()
Hardware name: 
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.29-06626-gb9d7dba #8
Call Trace:
 [<ffffffff8026421a>] ? warn_slowpath+0xea/0x160
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
 [<ffffffff805ee2a4>] ? printk+0x4e/0x56
 [<ffffffff802788ef>] ? __kernel_text_address+0x2f/0x60
 [<ffffffff802366a0>] ? print_context_stack+0x70/0xd0
 [<ffffffff80291dad>] ? crash_kexec+0x6d/0x110
 [<ffffffff8024ccc5>] ? default_spin_lock_flags+0x5/0x10
 [<ffffffff805f0bee>] ? _spin_lock_irqsave+0x2e/0x50
 [<ffffffff8028b009>] ? smp_call_function_many+0x1f9/0x260
 [<ffffffff8028b090>] ? smp_call_function+0x20/0x30
 [<ffffffff80244f20>] ? native_smp_send_stop+0x20/0x40
 [<ffffffff805ee19a>] ? panic+0x9a/0x156
 [<ffffffff80297191>] ? default_enable+0x21/0x40
 [<ffffffff805f0bee>] ? _spin_lock_irqsave+0x2e/0x50
 [<ffffffff8024ccc5>] ? default_spin_lock_flags+0x5/0x10
 [<ffffffff805f0bee>] ? _spin_lock_irqsave+0x2e/0x50
 [<ffffffff804119cd>] ? delay_tsc+0x3d/0x70
 [<ffffffff807c149b>] ? setup_IO_APIC+0x85e/0x9fd
 [<ffffffff805f0b26>] ? __down_read+0xa6/0xc2
 [<ffffffff807bcdb2>] ? native_smp_prepare_cpus+0x2c3/0x351
 [<ffffffff807b2541>] ? kernel_init+0x52/0x1ae
 [<ffffffff80232f2a>] ? child_rip+0xa/0x20
 [<ffffffff807b24ef>] ? kernel_init+0x0/0x1ae
 [<ffffffff80232f20>] ? child_rip+0x0/0x20
---[ end trace 4eaa2a86a8e2da22 ]---

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