mirage, mirage-www, xen and ec2

[Mark Thurman <mthurman@xxxxxxxxx>]

I've played some with mirage locally this week and decided I'd try to put the sample mirage-www on ec2 using Xen. I can run it locally just fine and other computers on my network can connect to it. I roughly followed the instructions on the wiki (http://www.openmirage.org/wiki/xen-boot) and after tweaking the script slightly, I'm able to bundle, unload, and boot up and ec2 instance with a mirage kernel. The instance launches just fine and I can see output from various mirage systems in the ec2 system log output. However, when I try to connect to my ec2 host (after opening port 80 in the ec2 console), my web browser just hangs.

Any ideas? I'm pretty new to every piece of this puzzle so I'm not really sure where to begin debugging the mnirage on xen networking stack. I'm attaching the output from the ec2 log in case that's helpful to start.

I know that this isn't much to go on, so any pointers or help to turn on more debugging output would be appreciated.

-----BEGIN LOG

xc_dom_probe_bzimage_kernel: kernel is not a bzImage

close blk: backend at /local/domain/0/backend/vbd/659/2049

close blk: backend at /local/domain/0/backend/vbd/659/2050

close blk: backend at /local/domain/0/backend/vbd/659/2051

kernel.c: Mirage OS!

kernel.c: Â start_info: 0x1586000(VA)

kernel.c: Â Â nr_pages: 0x6a400

kernel.c: Â shared_inf: 0xbee14000(MA)

kernel.c: Â Â Âpt_base: 0x1589000(VA)

kernel.c: nr_pt_frames: 0xf

kernel.c: Â Â mfn_list: 0x1234000(VA)

kernel.c: Â Âmod_start: 0x0(VA)

kernel.c: Â Â Âmod_len: 0

kernel.c: Â Â Â Âflags: 0x0

kernel.c: Â Â cmd_line:Â

x86_setup.c: Â stack: Â Â Â0x233920-0xa33920

mm.c: MM: Init

x86_mm.c: Â Â Â _text: 0x0(VA)

x86_mm.c: Â Â Â_etext: 0xf3367(VA)

x86_mm.c: Â Â_erodata: 0x101000(VA)

x86_mm.c: Â Â Â_edata: 0x216940(VA)

x86_mm.c: stack start: 0x233920(VA)

x86_mm.c: Â Â Â Â_end: 0x1234000(VA)

x86_mm.c: Â start_pfn: 159b

x86_mm.c: Â Â max_pfn: 6a400

x86_mm.c: Mapping memory range 0x1800000 - 0x6a400000

x86_mm.c: setting 0x0-0x101000 readonly

x86_mm.c: skipped 0x1000

mm.c: MM: Initialise page allocator for 0x18e2000 -> 0x6a400000

mm.c: MM: done

x86_mm.c: Demand map pfns at 6a401000-206a401000.

gnttab_init: 2047

gnttab_stubs.c: gnttab_table mapped at 0x6a401000

ENT: Breaking up is easy to do (with OPAM)

ENT: Building a "xenstore stub domain" with Mirage

ENT: Connected Cloud Control: OpenFlow in Mirage

ENT: An Outing to CUFP 2011

ENT: A Spring Wiki Cleaning

ENT: Self-hosting Mirage website

ENT: Installation

ENT: OCaml Installation

ENT: Getting Started with Lwt threads

ENT: Portable Regular Expressions

ENT: Delimited Continuations vs Lwt for Threads

ENT: Running Mirage Xen kernels

ENT: Tech Talks

ENT: Papers and Related Work

ENT: DNS Performance Tests

ENT: Hello Mirage World

ENT: Source code layout

ENT: Developing the Mirage networking stack on UNIX

ENT: COW: OCaml on the Web

ENT: Introduction to HTCaML

Devices: [templates] sleeping

..omitted 72 lines...

Devices: [templates] sleeping

Devices: [static] sleeping

Devices: [templates] provider start

Devices: [templates:templates] provider plug

Devices: [templates:templates] waking waiters

Devices: [templates] waking

...omitted 72 lines...

Devices: [templates] waking

Devices: [static] provider start

Devices: [static:static] provider plug

Devices: [static:static] waking waiters

Devices: [static] waking

Manager: create

Manager: init done

Devices: [Xen.Blkif] provider start

found: num=0 backend-id=0

Netfront.create: id=0 domid=0

MAC: 12:31:39:1C:34:A6

Âsg:true gso_tcpv4:true rx_copy:true rx_flip:false smart_poll:false

Manager: plug 0

Manager: plug done, to listener

Manager: VIF 0 to 10.0.0.2 nm 255.255.255.0 gw [10.0.0.1]

ARP: sending gratuitous from 10.0.0.2

Devices: [Xen.Blkif:2051] provider plug

Xen.Blkif: create 2051

Blkfront.create; vdev=2051

Devices: [Xen.Blkif:2050] provider plug

Xen.Blkif: create 2050

Blkfront.create; vdev=2050

Devices: [Xen.Blkif:2049] provider plug

Xen.Blkif: create 2049

Blkfront.create; vdev=2049

Blkback can only use a single-page ring

Negotiated a singe-page ring

Blkback can only use a single-page ring

Negotiated a singe-page ring

Blkback can only use a single-page ring

Negotiated a singe-page ring

state=InitWait

Blkfront features: barrier=false removable=false sector_size=512 sectors=1835008

Xen.Blkif: success

Devices: [Xen.Blkif:2051] no waiters

state=InitWait

Blkfront features: barrier=false removable=false sector_size=512 sectors=312705024

Xen.Blkif: success

Devices: [Xen.Blkif:2050] no waiters

state=InitWait

Blkfront features: barrier=false removable=false sector_size=512 sectors=10240

Xen.Blkif: success

Devices: [Xen.Blkif:2049] no waiters

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

ARP: who-has 10.110.50.84?

-----END LOG

Thanks,

Mark