From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chen Baozi Subject: Re: Problems when creating domU on OMAP5 Date: Mon, 16 Sep 2013 21:42:22 +0800 Message-ID: <20130916134222.GA28300@cbz-workstation> References: <20130916131828.GA15286@cbz-workstation> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20130916131828.GA15286@cbz-workstation> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Xen Developer List List-Id: xen-devel@lists.xenproject.org On Mon, Sep 16, 2013 at 09:18:28PM +0800, Chen Baozi wrote: > Hi all, > > I tried to create a domU on OMAP5 today. But it seems there are still some > problems to solve before I can successfully creat it. > > I first cloned Julien's arndale-domU-3.9 branch which mentioned in wiki. > Then I modified gic addresses xenvm-4.2.dts to meet OMAP5432 requirement: > > --- a/arch/arm/boot/dts/xenvm-4.2.dts > +++ b/arch/arm/boot/dts/xenvm-4.2.dts > @@ -49,13 +49,13 @@ > reg = <0 0x80000000 0 0x08000000>; > }; > > - gic: interrupt-controller@2c001000 { > + gic: interrupt-controller@48211000 { > compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; > #interrupt-cells = <3>; > #address-cells = <0>; > interrupt-controller; > - reg = <0 0x10481000 0 0x1000>, > - <0 0x10482000 0 0x100>; > + reg = <0 0x48211000 0 0x1000>, > + <0 0x48212000 0 0x1000>; > }; > > timer { > > And make the kernel image as wiki said: > > $ cat arch/arm/boot/zImage arch/arm/boot/xenvm-4.2.dtb > image > > Write a config file used by xl like: > > kernel = "/root/domU/image" > memory = "128" > name = "domU" > vcpus = 1 > disk = [ 'phy:/dev/loop0,xvda,w' ] > > Setup loop device: > > $ losetup /dev/loop0 /root/domU/xen-arm.img > > which xen-arm.img is the a bootable rootfs. > > Finally I execute xl to create the domU: > > $ sudo xl create -f config -d > Parsing config from config > unable to format domain config as JSON (YAJL:1) > [ 80.685264] Failed to unmap pfn:9bce5 rc:-2 > [ 80.691741] Failed to unmap pfn:9e7da rc:-2 > [ 80.696310] Failed to unmap pfn:9bce5 rc:-2 > [ 80.702494] Failed to unmap pfn:9ba57 rc:-2 > [ 80.706932] Failed to unmap pfn:9bce3 rc:-2 > [ 80.718394] Failed to unmap pfn:9bce2 rc:-2 > libxl: error: libxl_device.c:894:device_backend_callback: unable to add device with path /local/domain/0/backend/vbd/1/51712 > libxl: error: libxl_create.c:932:domcreate_launch_dm: unable to add disk devices > libxl: error: libxl_device.c:894:device_backend_callback: unable to remove device with path /local/domain/0/backend/vbd/1/51712 > libxl: error: libxl.c:1451:devices_destroy_cb: libxl__devices_destroy failed for 1 > (XEN) mm.c:1092:d0 gnttab_mark_dirty not implemented yet > Besides, after few minutes of executing "xl create" command, there are continuous kernel oops message such as: [ 1009.236697] INFO: rcu_sched self-detected stall on CPU { 0} (t=65130 jiffies g=582 c=) [ 1009.245404] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc3+ #4 [ 1009.251843] [] (unwind_backtrace+0x0/0xf8) from [] (show_stack+0x1) [ 1009.260426] [] (show_stack+0x10/0x14) from [] (dump_stack+0x70/0x8) [ 1009.268600] [] (dump_stack+0x70/0x8c) from [] (rcu_check_callbacks) [ 1009.277701] [] (rcu_check_callbacks+0x340/0x7a8) from [] (update_p) [ 1009.287680] [] (update_process_times+0x38/0x64) from [] (tick_sche) [ 1009.297313] [] (tick_sched_handle+0x48/0x54) from [] (tick_sched_t) [ 1009.306599] [] (tick_sched_timer+0x44/0x74) from [] (__run_hrtimer) [ 1009.315624] [] (__run_hrtimer+0x7c/0x1dc) from [] (hrtimer_interru) [ 1009.324917] [] (hrtimer_interrupt+0x104/0x2a0) from [] (arch_timer) [ 1009.334983] [] (arch_timer_handler_virt+0x28/0x30) from [] (handle) [ 1009.345485] [] (handle_percpu_devid_irq+0x78/0x114) from [] (gener) [ 1009.355551] [] (generic_handle_irq+0x20/0x30) from [] (handle_IRQ+) [ 1009.364402] [] (handle_IRQ+0x38/0x94) from [] (gic_handle_irq+0x28) [ 1009.372909] [] (gic_handle_irq+0x28/0x5c) from [] (__irq_svc+0x44/) [ 1009.381321] Exception stack(0xc0805dd0 to 0xc0805e18) [ 1009.386445] 5dc0: 00000001 00000000 00000000 c08108 [ 1009.394690] 5de0: c0802900 c0802900 c101e900 cbcbfc00 60000113 ce67f600 c101e9b4 c0805c [ 1009.402935] 5e00: 60000193 c0805e18 c0095e90 c0470d1c 60000113 ffffffff [ 1009.409626] [] (__irq_svc+0x44/0x58) from [] (enqueue_to_backlog+0) [ 1009.418563] [] (enqueue_to_backlog+0x148/0x290) from [] (netif_rx+) [ 1009.427503] [] (netif_rx+0x54/0x154) from [] (smsc95xx_rx_fixup+0x) [ 1009.436272] [] (smsc95xx_rx_fixup+0xcc/0x22c) from [] (usbnet_bh+0) [ 1009.445123] [] (usbnet_bh+0xbc/0x260) from [] (tasklet_action+0x64) [ 1009.453628] [] (tasklet_action+0x64/0xf8) from [] (__do_softirq+0x) [ 1009.462481] [] (__do_softirq+0x114/0x290) from [] (irq_exit+0xa0/0) [ 1009.470822] [] (irq_exit+0xa0/0xd8) from [] (handle_IRQ+0x3c/0x94) [ 1009.478796] [] (handle_IRQ+0x3c/0x94) from [] (gic_handle_irq+0x28) [ 1009.487304] [] (gic_handle_irq+0x28/0x5c) from [] (__irq_svc+0x44/) [ 1009.495717] Exception stack(0xc0805f60 to 0xc0805fa8) [ 1009.500841] 5f60: 00000001 00000001 00000000 c0810648 c0804000 c088b340 c0804000 c088a4 [ 1009.509087] 5f80: c088b340 c057d320 c080c554 c0804000 60000093 c0805fa8 c0095ed4 c00150 [ 1009.517330] 5fa0: 20000013 ffffffff [ 1009.520895] [] (__irq_svc+0x44/0x58) from [] (arch_cpu_idle+0x20/0) [ 1009.529228] [] (arch_cpu_idle+0x20/0x30) from [] (cpu_startup_entr) [ 1009.538356] [] (cpu_startup_entry+0x78/0x220) from [] (start_kerne) Baozi