Xen project Mailing List

Re: [Xen-devel] xm dmesg output

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>

From: David F Barrera <dfbp@xxxxxxxxxx>

Date: Thu, 01 Dec 2005 11:49:00 -0600

Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>

Delivery-date: Thu, 01 Dec 2005 17:48:56 +0000

List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On Wed, 2005-11-30 at 11:39 +0000, Keir Fraser wrote: > On 29 Nov 2005, at 22:15, David F Barrera wrote: > > >> Someone redirected serial input to Xen (CTRL-a three times) and then > >> pressed 'r' over the serial line to dump scheduler information. That > >> is the only way that info can get printed. > > > > The interesting thing is that no one is doing anything to the serial > > input! This is happening 'spontaneously' in my setup. Sounds like a > > bug? > > Yes, if that really is the case. It looks impossible though. That > diagnostic output is only triggered from handle_keypress(), which is > only called from serial_rx(), which is only called from the low-level > serial driver. > Well, it is the case. There hasn't been anything done on the serial console to cause it; it is happening 'spontaneously'. [root@leaf10 ~]# xm dmesg __ __ _____ ___ _ _ \ \/ /___ _ __ |___ / / _ \ __| | _____ _____| | \ // _ \ '_ \ |_ \| | | |__ / _` |/ _ \ \ / / _ \ | / \ __/ | | | ___) | |_| |__| (_| | __/\ V / __/ | /_/\_\___|_| |_| |____(_)___/ \__,_|\___| \_/ \___|_| http://www.cl.cam.ac.uk/netos/xen University of Cambridge Computer Laboratory Xen version 3.0-devel (root@) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) Thu Dec 1 09:52:50 CST 2005 Latest ChangeSet: Thu Dec 1 08:22:22 2005 +0100 8151:f5b119533cc8 (XEN) Physical RAM map: (XEN) 0000000000000000 - 000000000009d400 (usable) (XEN) 000000000009d400 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000d7fbe640 (usable) (XEN) 00000000d7fbe640 - 00000000d7fd0000 (ACPI data) (XEN) 00000000d7fd0000 - 00000000d8000000 (reserved) (XEN) 00000000fec00000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 0000000228000000 (usable) (XEN) System RAM: 8191MB (8387948kB) (XEN) Xen heap: 10MB (10360kB) (XEN) PAE enabled, limit: 16 GB (XEN) found SMP MP-table at 0009d540 (XEN) DMI 2.3 present. (XEN) Using APIC driver default (XEN) ACPI: RSDP (v000 IBM ) @ 0x000fdfc0 (XEN) ACPI: RSDT (v001 IBM SERBLADE 0x00001000 IBM 0x45444f43) @ 0xd7fcff80 (XEN) ACPI: FADT (v002 IBM SERBLADE 0x00001000 IBM 0x45444f43) @ 0xd7fcfec0 (XEN) ACPI: MADT (v001 IBM SERBLADE 0x00001000 IBM 0x45444f43) @ 0xd7fcfe00 (XEN) ACPI: MCFG (v001 IBM SERBLADE 0x00001000 IBM 0x45444f43) @ 0xd7fcfdc0 (XEN) ACPI: DSDT (v001 IBM SERBLADE 0x00001000 INTL 0x02002025) @ 0x00000000 (XEN) ACPI: Local APIC address 0xfee00000 (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) (XEN) Processor #0 15:4 APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x06] enabled) (XEN) Processor #6 15:4 APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) (XEN) Processor #1 15:4 APIC version 20 (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x07] enabled) (XEN) Processor #7 15:4 APIC version 20 (XEN) ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1]) (XEN) ACPI: LAPIC_NMI (acpi_id[0x03] dfl dfl lint[0x1]) (XEN) ACPI: IOAPIC (id[0x0e] address[0xfec00000] gsi_base[0]) (XEN) IOAPIC[0]: apic_id 14, version 32, address 0xfec00000, GSI 0-23 (XEN) ACPI: IOAPIC (id[0x0d] address[0xfec10000] gsi_base[24]) (XEN) IOAPIC[1]: apic_id 13, version 32, address 0xfec10000, GSI 24-47 (XEN) ACPI: IOAPIC (id[0x0c] address[0xfec81000] gsi_base[48]) (XEN) IOAPIC[2]: apic_id 12, version 32, address 0xfec81000, GSI 48-71 (XEN) ACPI: IOAPIC (id[0x0b] address[0xfec81400] gsi_base[72]) (XEN) IOAPIC[3]: apic_id 11, version 32, address 0xfec81400, GSI 72-95 (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) (XEN) ACPI: IRQ0 used by override. (XEN) ACPI: IRQ2 used by override. (XEN) ACPI: IRQ11 used by override. (XEN) Enabling APIC mode: Flat. Using 4 I/O APICs (XEN) Using ACPI (MADT) for SMP configuration information (XEN) Initializing CPU#0 (XEN) Detected 3200.228 MHz processor. (XEN) Using scheduler: Simple EDF Scheduler (sedf) (XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K (XEN) CPU: L2 cache: 1024K (XEN) CPU: Physical Processor ID: 0 (XEN) CPU0: Intel(R) Xeon(TM) CPU 3.20GHz stepping 01 (XEN) Booting processor 1/1 eip 90000 (XEN) Initializing CPU#1 (XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K (XEN) CPU: L2 cache: 1024K (XEN) CPU: Physical Processor ID: 0 (XEN) CPU1: Intel(R) Xeon(TM) CPU 3.20GHz stepping 01 (XEN) Booting processor 2/6 eip 90000 (XEN) Initializing CPU#2 (XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K (XEN) CPU: L2 cache: 1024K (XEN) CPU: Physical Processor ID: 3 (XEN) CPU2: Intel(R) Xeon(TM) CPU 3.20GHz stepping 01 (XEN) Booting processor 3/7 eip 90000 (XEN) Initializing CPU#3 (XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K (XEN) CPU: L2 cache: 1024K (XEN) CPU: Physical Processor ID: 3 (XEN) CPU3: Intel(R) Xeon(TM) CPU 3.20GHz stepping 01 (XEN) Total of 4 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) ..TIMER: vector=0x31 pin1=2 pin2=-1 (XEN) checking TSC synchronization across 4 CPUs: passed. (XEN) Platform timer is 1.193MHz PIT (XEN) Brought up 4 CPUs (XEN) mtrr: v2.0 (20020519) (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen-ELF header found: 'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=3.0,VIRT_BASE=0xC0000000,PAE=yes,LOADER=generic' (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 0000000005000000->0000000006000000 (251904 pages to be allocated) (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: c0100000->c05f5184 (XEN) Init. ramdisk: c05f6000->c083da00 (XEN) Phys-Mach map: c083e000->c0938000 (XEN) Start info: c0938000->c0939000 (XEN) Page tables: c0939000->c0944000 (XEN) Boot stack: c0944000->c0945000 (XEN) TOTAL: c0000000->c0c00000 (XEN) ENTRY ADDRESS: c0100000 (XEN) Initrd len 0x247a00, start at 0xc05f6000 (XEN) Scrubbing Free RAM: .Scheduler: Simple EDF Scheduler (sedf) (XEN) NOW=0x00000000022093BB (XEN) CPU[00] now=35695933 (XEN) RUNQ rq ff1e5c00 n: ff1e5c00, p: ff1e5c00 (XEN) (XEN) WAITQ rq ff1e5c08 n: ff1e5c08, p: ff1e5c08 (XEN) (XEN) EXTRAQ (penalty) rq ff1e5c10 n: ff1e5c10, p: ff1e5c10 (XEN) (XEN) EXTRAQ (utilization) rq ff1e5c18 n: ff1e5c18, p: ff1e5c18 (XEN) (XEN) not on Q (XEN) 0: 0.0 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[01] now=35741039 (XEN) RUNQ rq ff1e4980 n: ff1e4980, p: ff1e4980 (XEN) (XEN) WAITQ rq ff1e4988 n: ff1e4988, p: ff1e4988 (XEN) (XEN) EXTRAQ (penalty) rq ff1e4990 n: ff1e4990, p: ff1e4990 (XEN) (XEN) EXTRAQ (utilization) rq ff1e4998 n: ff1e4998, p: ff1e4998 (XEN) (XEN) not on Q (XEN) 0: 0.1 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[02] now=35783361 (XEN) RUNQ rq ffbfa980 n: ffbfa980, p: ffbfa980 (XEN) (XEN) WAITQ rq ffbfa988 n: ffbfa988, p: ffbfa988 (XEN) (XEN) EXTRAQ (penalty) rq ffbfa990 n: ffbfa990, p: ffbfa990 (XEN) (XEN) EXTRAQ (utilization) rq ffbfa998 n: ffbfa998, p: ffbfa998 (XEN) (XEN) not on Q (XEN) 0: 0.2 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[03] now=35825616 (XEN) RUNQ rq ff1ee980 n: ff1ee980, p: ff1ee980 (XEN) (XEN) WAITQ rq ff1ee988 n: ff1ee988, p: ff1ee988 (XEN) (XEN) EXTRAQ (penalty) rq ff1ee990 n: ff1ee990, p: ff1ee990 (XEN) (XEN) EXTRAQ (utilization) rq ff1ee998 n: ff1ee998, p: ff1ee998 (XEN) (XEN) not on Q (XEN) 0: 0.3 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) Scheduler: Simple EDF Scheduler (sedf) (XEN) NOW=0x000000000335A280 (XEN) CPU[00] now=53860610 (XEN) RUNQ rq ff1e5c00 n: ff1e5c00, p: ff1e5c00 (XEN) (XEN) WAITQ rq ff1e5c08 n: ff1e5c08, p: ff1e5c08 (XEN) (XEN) EXTRAQ (penalty) rq ff1e5c10 n: ff1e5c10, p: ff1e5c10 (XEN) (XEN) EXTRAQ (utilization) rq ff1e5c18 n: ff1e5c18, p: ff1e5c18 (XEN) (XEN) not on Q (XEN) 0: 0.0 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[01] now=53908530 (XEN) RUNQ rq ff1e4980 n: ff1e4980, p: ff1e4980 (XEN) (XEN) WAITQ rq ff1e4988 n: ff1e4988, p: ff1e4988 (XEN) (XEN) EXTRAQ (penalty) rq ff1e4990 n: ff1e4990, p: ff1e4990 (XEN) (XEN) EXTRAQ (utilization) rq ff1e4998 n: ff1e4998, p: ff1e4998 (XEN) (XEN) not on Q (XEN) 0: 0.1 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[02] now=53951275 (XEN) RUNQ rq ffbfa980 n: ffbfa980, p: ffbfa980 (XEN) (XEN) WAITQ rq ffbfa988 n: ffbfa988, p: ffbfa988 (XEN) (XEN) EXTRAQ (penalty) rq ffbfa990 n: ffbfa990, p: ffbfa990 (XEN) (XEN) EXTRAQ (utilization) rq ffbfa998 n: ffbfa998, p: ffbfa998 (XEN) (XEN) not on Q (XEN) 0: 0.2 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[03] now=53993685 (XEN) RUNQ rq ff1ee980 n: ff1ee980, p: ff1ee980 (XEN) (XEN) WAITQ rq ff1ee988 n: ff1ee988, p: ff1ee988 (XEN) (XEN) EXTRAQ (penalty) rq ff1ee990 n: ff1ee990, p: ff1ee990 (XEN) (XEN) EXTRAQ (utilization) rq ff1ee998 n: ff1ee998, p: ff1ee998 (XEN) (XEN) not on Q (XEN) 0: 0.3 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) .Scheduler: Simple EDF Scheduler (sedf) (XEN) NOW=0x000000000492C724 (XEN) CPU[00] now=76735407 (XEN) RUNQ rq ff1e5c00 n: ff1e5c00, p: ff1e5c00 (XEN) (XEN) WAITQ rq ff1e5c08 n: ff1e5c08, p: ff1e5c08 (XEN) (XEN) EXTRAQ (penalty) rq ff1e5c10 n: ff1e5c10, p: ff1e5c10 (XEN) (XEN) EXTRAQ (utilization) rq ff1e5c18 n: ff1e5c18, p: ff1e5c18 (XEN) (XEN) not on Q (XEN) 0: 0.0 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[01] now=76778635 (XEN) RUNQ rq ff1e4980 n: ff1e4980, p: ff1e4980 (XEN) (XEN) WAITQ rq ff1e4988 n: ff1e4988, p: ff1e4988 (XEN) (XEN) EXTRAQ (penalty) rq ff1e4990 n: ff1e4990, p: ff1e4990 (XEN) (XEN) EXTRAQ (utilization) rq ff1e4998 n: ff1e4998, p: ff1e4998 (XEN) (XEN) not on Q (XEN) 0: 0.1 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[02] now=76820737 (XEN) RUNQ rq ffbfa980 n: ffbfa980, p: ffbfa980 (XEN) (XEN) WAITQ rq ffbfa988 n: ffbfa988, p: ffbfa988 (XEN) (XEN) EXTRAQ (penalty) rq ffbfa990 n: ffbfa990, p: ffbfa990 (XEN) (XEN) EXTRAQ (utilization) rq ffbfa998 n: ffbfa998, p: ffbfa998 (XEN) (XEN) not on Q (XEN) 0: 0.2 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) CPU[03] now=76862654 (XEN) RUNQ rq ff1ee980 n: ff1ee980, p: ff1ee980 (XEN) (XEN) WAITQ rq ff1ee988 n: ff1ee988, p: ff1ee988 (XEN) (XEN) EXTRAQ (penalty) rq ff1ee990 n: ff1ee990, p: ff1ee990 (XEN) (XEN) EXTRAQ (utilization) rq ff1ee998 n: ff1ee998, p: ff1ee998 (XEN) (XEN) not on Q (XEN) 0: 0.3 has=F p=20000000 sl=15000000 ddl=0 w=0 c=0 sc=0 xtr (yes)=0 ew=0 (XEN) .......................................................................................done. (XEN) Xen trace buffers: disabled (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen). (XEN) microcode: CPU0 not 'upgrading' to earlier revision 0x9 (current=0x12) (XEN) microcode: CPU1 not 'upgrading' to earlier revision 0x9 (current=0x12) (XEN) microcode: CPU2 not 'upgrading' to earlier revision 0x9 (current=0x12) (XEN) microcode: CPU3 not 'upgrading' to earlier revision 0x9 (current=0x12) (XEN) microcode: No suitable data for CPU2 (XEN) microcode: No suitable data for CPU1 (XEN) microcode: No suitable data for CPU3 (XEN) microcode: No suitable data for CPU0 > -- Keir > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > -- Regards, David F Barrera Linux Technology Center Systems and Technology Group, IBM "The wisest men follow their own direction. 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