From mboxrd@z Thu Jan 1 00:00:00 1970 From: "michele.paolino" Subject: Re: simple scheduler Date: Thu, 18 Feb 2010 17:51:02 +0100 Message-ID: <14f366f91002180851i2dbb2a57v1e4f0c7e005d05fd@mail.gmail.com> References: <14f366f91002150519y1a27774h6f5d6628734f8849@mail.gmail.com> <20100215185412.GX2861@reaktio.net> <14f366f91002161018h60504c10g9224480e24872c1c@mail.gmail.com> <20100216182909.GG2861@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: George Dunlap Cc: Xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Thanks George, now it works! In my code SCHEDULE_SOFTIRQ is never getting raised. Now I raise it in add_vcpu function. Is this the best place to rais= e SCHEDULE_SOFTIRQ? Michele On Wed, Feb 17, 2010 at 12:43 PM, George Dunlap wrote: > Did you add a printk to your schedule() function to see if it's getting > called? > > schedule() is called from within the SCHEDULE_SOFTIRQ. Look at > xen/common/sched_credit.c. When is SCHEDULE_SOFTIRQ getting raised? > Are you doing that in your scheduler? > > -George > > On Tue, Feb 16, 2010 at 6:29 PM, Pasi K=E4rkk=E4inen wrote= : > > On Tue, Feb 16, 2010 at 07:18:00PM +0100, michele.paolino wrote: > >> Thanks for the istructions, > >> I have read that thread but is not useful for me. I have compiled a= nd > >> installed the round robin scheduler of that thread. Both schedulers > have > >> the same behavior. Following your advice I have set up a serial > console. I > >> have attached serial console's log along with this mail. As I > supposed, > >> dom0 doesn't start. > >> > > > > Please paste your grub.conf. > > > > It could be that your dom0 kernel is not configured to use the serial > console. > > > > -- Pasi > > > >> Michele > >> > >> On Mon, Feb 15, 2010 at 7:54 PM, Pasi K=E4rkk=E4inen <[1]pasik@iki.= fi> > wrote: > >> > >> On Mon, Feb 15, 2010 at 01:59:06PM +0000, George Dunlap wrote: > >> > Do you have a serial console set up? > >> > > >> > >> If not, instructions here: > >> [2]http://wiki.xensource.com/xenwiki/XenSerialConsole > >> -- Pasi > >> > You may want to skim this thread: > >> > > >> [3] > http://lists.xensource.com/archives/html/xen-devel/2009-04/msg01086.html > >> > to see if any of the advice given there is useful. > >> > > >> > -George > >> > > >> > On Mon, Feb 15, 2010 at 1:19 PM, michele.paolino > >> > <[4]michele.paolino@studio.unibo.it> wrote: > >> > > Hi! I'm writing a simple scheduler to study the xen scheduler > >> interfaces. > >> > > I am able to compile and install it. After reboot when I try = to > >> select > >> > > sched=3Dsimple, the system gets ready to boot and then everyt= hing > goes > >> blank. > >> > > I think that dom0 don't start. I can't be able to solve this > >> problem, can > >> > > anybody help me? > >> > > I have attached my simple scheduler code along with this mail= . > >> > > > >> > > Thanks, > >> > > Michele > >> > > > >> > > _______________________________________________ > >> > > Xen-devel mailing list > >> > > [5]Xen-devel@lists.xensource.com > >> > > [6]http://lists.xensource.com/xen-devel > >> > > > >> > > > >> > > >> > _______________________________________________ > >> > Xen-devel mailing list > >> > [7]Xen-devel@lists.xensource.com > >> > [8]http://lists.xensource.com/xen-devel > >> > >> References > >> > >> Visible links > >> 1. mailto:pasik@iki.fi > >> 2. http://wiki.xensource.com/xenwiki/XenSerialConsole > >> 3. > http://lists.xensource.com/archives/html/xen-devel/2009-04/msg01086.html > >> 4. mailto:michele.paolino@studio.unibo.it > >> 5. mailto:Xen-devel@lists.xensource.com > >> 6. http://lists.xensource.com/xen-devel > >> 7. mailto:Xen-devel@lists.xensource.com > >> 8. http://lists.xensource.com/xen-devel > > > >> __ __ _____ _ _ ____ > >> \ \/ /___ _ __ |___ /| || | |___ \ > >> \ // _ \ '_ \ |_ \| || |_ __) | > >> / \ __/ | | | ___) |__ _| / __/ > >> /_/\_\___|_| |_| |____(_) |_|(_)_____| > >> > >> (XEN) Xen version 3.4.2 (root@) (gcc version 4.2.4 (Ubuntu > 4.2.4-1ubuntu4)) Mon Feb 15 15:12:25 CET 2010 > >> (XEN) Latest ChangeSet: unavailable > >> (XEN) Command line: dom0_mem=3D262144 sched=3Dsimple loglvl=3Dall > guest_loglvl=3Dall com1=3D115200,8n1 console=3Dcom1 > >> (XEN) Video information: > >> (XEN) VGA is text mode 80x25, font 8x16 > >> (XEN) Disc information: > >> (XEN) Found 1 MBR signatures > >> (XEN) Found 1 EDD information structures > >> (XEN) Xen-e820 RAM map: > >> (XEN) 0000000000000000 - 000000000009f000 (usable) > >> (XEN) 000000000009f000 - 00000000000a0000 (reserved) > >> (XEN) 00000000000e8000 - 0000000000100000 (reserved) > >> (XEN) 0000000000100000 - 000000003fff0000 (usable) > >> (XEN) 000000003fff0000 - 0000000040000000 (ACPI data) > >> (XEN) 00000000fffbc000 - 0000000100000000 (reserved) > >> (XEN) System RAM: 1023MB (1048124kB) > >> (XEN) ACPI: RSDP 000FBDB0, 0014 (r0 QEMU ) > >> (XEN) ACPI: RSDT 3FFF0000, 0034 (r1 QEMU QEMURSDT 1 QEMU > 1) > >> (XEN) ACPI: FACP 3FFF01B4, 0074 (r1 QEMU QEMUFACP 1 QEMU > 1) > >> (XEN) ACPI: DSDT 3FFF0280, 1DD4 (r1 BXPC BXDSDT 1 INTL > 20090521) > >> (XEN) ACPI: FACS 3FFF0240, 0040 > >> (XEN) ACPI: SSDT 3FFF2054, 09E3 (r1 BXPC BXSSDT 1 INTL > 20090521) > >> (XEN) ACPI: APIC 3FFF2A38, 00EA (r1 QEMU QEMUAPIC 1 QEMU > 1) > >> (XEN) ACPI: HPET 3FFF2B90, 0038 (r1 QEMU QEMUHPET 1 QEMU > 1) > >> (XEN) NUMA turned off > >> (XEN) Faking a node at 0000000000000000-000000003fff0000 > >> (XEN) Xen heap: 9MB (9808kB) > >> (XEN) Domain heap initialised > >> (XEN) found SMP MP-table at 000fbc90 > >> (XEN) DMI 2.4 present. > >> (XEN) Using APIC driver default > >> (XEN) ACPI: PM-Timer IO Port: 0xb008 > >> (XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[b004,0], pm1x_evt[b000,0] > >> (XEN) ACPI: wakeup_vec[3fff024c], vec_size[20] > >> (XEN) ACPI: Local APIC address 0xfee00000 > >> (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) > >> (XEN) Processor #0 6:2 APIC version 20 > >> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled) > >> (XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled) > >> (XEN) ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0]) > >> (XEN) IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-23 > >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) > >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) > >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) > >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) > >> (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: IRQ5 used by override. > >> (XEN) ACPI: IRQ9 used by override. > >> (XEN) ACPI: IRQ10 used by override. > >> (XEN) ACPI: IRQ11 used by override. > >> (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs > >> (XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000 > >> (XEN) Using ACPI (MADT) for SMP configuration information > >> (XEN) Using scheduler: Very simple Scheduler (simple) > >> (XEN) > >> (XEN) > >> (XEN) add VCPU 0 > >> (XEN) > >> (XEN) Initializing CPU#0 > >> (XEN) Detected 2533.353 MHz processor. > >> (XEN) CPU: L1 I cache: 32K, L1 D cache: 32K > >> (XEN) CPU: L2 cache: 2048K > >> (XEN) Intel machine check reporting enabled on CPU#0. > >> (XEN) CMCI: CPU0 has no CMCI support > >> (XEN) CPU0: Intel QEMU Virtual CPU version 0.11.0 stepping 03 > >> (XEN) Total of 1 processors activated. > >> (XEN) ENABLING IO-APIC IRQs > >> (XEN) -> Using new ACK method > >> (XEN) ..TIMER: vector=3D0xF0 apic1=3D0 pin1=3D2 apic2=3D-1 pin2=3D-1 > >> (XEN) BAD HPET revision id. > >> (XEN) Platform timer is 3.579MHz ACPI PM Timer > >> (XEN) Brought up 1 CPUs > >> (XEN) I/O virtualisation disabled > >> (XEN) CPUIDLE: disabled due to no HPET. Force enable with 'cpuidle'. > >> (XEN) ACPI sleep modes: S3 > >> (XEN) mcheck_poll: Machine check polling timer started. > >> (XEN) *** LOADING DOMAIN 0 *** > >> (XEN) Xen kernel: 32-bit, PAE, lsb > >> (XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc048d33c > >> (XEN) PHYSICAL MEMORY ARRANGEMENT: > >> (XEN) Dom0 alloc.: 000000003c000000->000000003e000000 (57344 pages = to > be allocated) > >> (XEN) VIRTUAL MEMORY ARRANGEMENT: > >> (XEN) Loaded kernel: c0100000->c048d33c > >> (XEN) Init. ramdisk: c048e000->c1380c00 > >> (XEN) Phys-Mach map: c1381000->c13c1000 > >> (XEN) Start info: c13c1000->c13c147c > >> (XEN) Page tables: c13c2000->c13d3000 > >> (XEN) Boot stack: c13d3000->c13d4000 > >> (XEN) TOTAL: c0000000->c1800000 > >> (XEN) ENTRY ADDRESS: c0100000 > >> (XEN) Dom0 has maximum 1 VCPUs > >> (XEN) Scrubbing Free RAM: .......done. > >> (XEN) Xen trace buffers: disabled > >> (XEN) Std. Loglevel: All > >> (XEN) Guest Loglevel: All > >> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch > input to Xen) > >> (XEN) Freed 116kB init memory. > > > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel > > >