Console with modified backend #11
Comments
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Hi, Does it get stuck there on: "Mapping TX rings It doesn't show anything else? Could you tell me your hardware specifications? and the output of these commands:
I indeed have heard of cases where it gets stuck on mapping phase being unable to map the RX rings. But I was unable to reproduce it in my hardware. Thanks, |
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Hi Joao, Thanks for your prompt reply. It does get stuck at: "Mapping TX rings and shows nothing else. The hardware specs are as follows: CPU: Intel(R) Xeon(R) CPU E5-1607 v2 @ 3.00 GHz (4-core) (3 assigned to Dom-0) Let me know if you require any other hardware specification. The output to "xl vcpu-list" is: Name ID VCPU CPU State Time(s) CPU Affinity The output to "xl info" is: Name ID VCPU CPU State Time(s) CPU Affinity The output of "xl dmesg" is: (XEN) Xen version 4.4.0 (Ubuntu 4.4.0-0ubuntu5.2) (stefan.bader@canonical.com) (gcc (Ubuntu 4.8.2-19ubuntu1) 4.8.2) debug=n Tue Sep 30 19:19:31 UTC 2014 The output of "dmesg" is: [65497.038538] xen_netback/xen_netback:xenvif_netmap_unmap: vif6.0: revoking 1034 pages Best wishes, |
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Hey Hassan, Everything looks ok on the backend side and configurations. Could you try booting the VM in one of the cores of Domain-0 ? For example in core 2 instead of core 3, then pinning it back to core 3. Thanks, |
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HI Joao, Great, it worked. I specified the cpu in the .cfg file and booted the VM. The console this time didn't get stuck. After that I pinned it back to core 3 by: xl vcpu-pin clickos 0 3 Thanks a lot! Any reason why this worked? |
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Not sure yet but will let you know when I fix the issue, in mini-os. Thanks a lot! |
Hi,
I am trying to try the ponger example using your modified netback. I cannot seem to make it work. The console output for the ClickOS VM says:
Xen Minimal OS!
start_info: 0x1be000(VA)
nr_pages: 0x800
shared_inf: 0x8ce6b000(MA)
pt_base: 0x1c1000(VA)
nr_pt_frames: 0x5
mfn_list: 0x1ba000(VA)
mod_start: 0x0(VA)
mod_len: 0
flags: 0x0
cmd_line:
stack: 0x177040-0x197040
MM: Init
_text: 0x0(VA)
_etext: 0xe1e1d(VA)
_erodata: 0x15d000(VA)
_edata: 0x15ebb8(VA)
stack start: 0x177040(VA)
_end: 0x1b9010(VA)
start_pfn: 1c9
max_pfn: 800
Mapping memory range 0x400000 - 0x800000
setting 0x0-0x15d000 readonly
skipped 0x1000
MM: Initialise page allocator for 1cb000(1cb000)-800000(800000)
MM: done
Demand map pfns at 801000-2000801000.
Heap resides at 2000802000-4000802000.
Initialising timer interface
Initialising console ... done.
gnttab_table mapped at 0x801000.
Initialising scheduler
Thread "Idle": pointer: 0x2000802050, stack: 0x1e0000
Thread "xenstore": pointer: 0x2000802800, stack: 0x1f0000
xenbus initialised on irq 1 mfn 0x2222b0
Thread "shutdown": pointer: 0x2000802fb0, stack: 0x200000
Dummy main: start_info=0x197040
Thread "main": pointer: 0x2000803760, stack: 0x210000
sparsing 0MB at 176000
"main"
[on_status:205] router id 0
[on_status:206] status change to Running
Thread "click": pointer: 0x2000810c50, stack: 0x230000
backend dom 0
Mapping TX rings
0 map errors
Am I doing it right? The example.config file that I am using is as follows:
name = 'clickos'
kernel = '/home/nfv1/click/clickos/minios/build/clickos_x86_64'
vcpus = '1'
pinning your VCPU helps performance
cpus = '3'
memory = '8'
uncoment this line if you wish to use our backend
vif = ['bridge=vale0,script=vif-vale']
vif = ['mac=68:05:ca:29:2e:be,bridge=vale0']
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'preserve'
click = 'ponger.click'
uncomment this line to enable PVH mode for ClickOS
pvh=1
Best wishes,
Hassan
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