[Barrelfish-users] Issue building new application -- Cannot create more caps in CNode

[Benjamin Shelton]

Hi all,

I'm trying to build a simple ping-pong messaging application in Barrelfish
following the example in usr/examples/xmpl-msg.

I've done the following:

- Created usr/examples/xmpl-pingpong and wrote my code in pingpong.c
- Built an interface "xmplpingpong.if" as follows:

interface xmplpingpong "Example ping-pong message interface" {
          message msg_there(char data[len]);
          message msg_back(char data[len]);
};

Copied the interface to if/ and edited if/Hakefile to include it

- Built a Hakefile as follows:

[ build application { target = "examples/xmpl-pingpong",
                      cFiles = [ "pingpong.c" ],
                      flounderBindings = [ "xmplpingpong" ]
                    }
]

- Edited build/symbolic_targets.mk to include sbin/examples/xmpl-pingpong
under MODULES_COMMON
- Added the following lines to build/menu.lst:

module /x86_64/sbin/examples/xmpl-pingpong core=0 server
module /x86_64/sbin/examples/xmpl-pingpong core=1 client

Everything builds OK, and my test application runs fine with "make sim".
 However, I'd like to run it on real hardware.  I have Barrelfish set up to
netboot via pxegrub on a 64-core lab machine.  It boots more-or-less OK
(doesn't get to the fish shell due to an ACPI issue), and I've verified
that I can run the xmpl-msg test by specifying it in the bootloader
arguments.  However, when I try to run the xmpl-pingpong benchmark I
created above, I get the following error:

Kernel starting at address 0xffffff80079fb000
Barrelfish CPU driver starting on x86_64 apic_id 32
kernel 0: Measured 200008944 APIC timer counts in one RTC second, 250027
data points.
kernel 0: Measured 2200188 TSC counts per ms, 99 data points. Average
jitter 55 TSC ticks.
spawn module: x86_64/sbin/init
Raw MMAP from BIOS
        0x00000000 - 0x0009e800 Type: 1 Length: 0x9e800
        0x0009e800 - 0x000a0000 Type: 2 Length: 0x1800
        0x000e8000 - 0x00100000 Type: 2 Length: 0x18000
        0x00100000 - 0xd7e60000 Type: 1 Length: 0xd7d60000
        0xd7e6e000 - 0xd7e70000 Type: 9 Length: 0x2000
        0xd7e70000 - 0xd7e94000 Type: 3 Length: 0x24000
        0xd7e94000 - 0xd7ec0000 Type: 4 Length: 0x2c000
        0xd7ec0000 - 0xd7ee0000 Type: 2 Length: 0x20000
        0xd7eed000 - 0xd7f00000 Type: 2 Length: 0x13000
        0xd7f00000 - 0xd8000000 Type: 2 Length: 0x100000
        0xe0000000 - 0xf0000000 Type: 2 Length: 0x10000000
        0xffe00000 - 0x100000000 Type: 2 Length: 0x200000
        0x100000000 - 0x2027000000 Type: 1 Length: 0x1f27000000
Sorted MMAP
        0x00000000 - 0x0009e800 Type: 1 Length: 0x9e800
        0x0009e800 - 0x000a0000 Type: 2 Length: 0x1800
        0x000e8000 - 0x00100000 Type: 2 Length: 0x18000
        0x00100000 - 0xd7e60000 Type: 1 Length: 0xd7d60000
        0xd7e6e000 - 0xd7e70000 Type: 9 Length: 0x2000
        0xd7e70000 - 0xd7e94000 Type: 3 Length: 0x24000
        0xd7e94000 - 0xd7ec0000 Type: 4 Length: 0x2c000
        0xd7ec0000 - 0xd7ee0000 Type: 2 Length: 0x20000
        0xd7eed000 - 0xd7f00000 Type: 2 Length: 0x13000
        0xd7f00000 - 0xd8000000 Type: 2 Length: 0x100000
        0xe0000000 - 0xf0000000 Type: 2 Length: 0x10000000
        0xffe00000 - 0x100000000 Type: 2 Length: 0x200000
        0x100000000 - 0x2027000000 Type: 1 Length: 0x1f27000000
Preprocessed MMAP
        0x00000000 - 0x0009e800 Type: 1 Length: 0x9e800
        0x0009e800 - 0x000a0000 Type: 2 Length: 0x1800
        0x000e8000 - 0x00100000 Type: 2 Length: 0x18000
        0x00100000 - 0xd7e60000 Type: 1 Length: 0xd7d60000
        0xd7e6e000 - 0xd7e70000 Type: 9 Length: 0x2000
        0xd7e70000 - 0xd7e94000 Type: 3 Length: 0x24000
        0xd7e94000 - 0xd7ec0000 Type: 4 Length: 0x2c000
        0xd7ec0000 - 0xd7ee0000 Type: 2 Length: 0x20000
        0xd7eed000 - 0xd7f00000 Type: 2 Length: 0x13000
        0xd7f00000 - 0xd8000000 Type: 2 Length: 0x100000
        0xe0000000 - 0xf0000000 Type: 2 Length: 0x10000000
        0xffe00000 - 0x100000000 Type: 2 Length: 0x200000
        0x100000000 - 0x2027000000 Type: 1 Length: 0x1f27000000
Pagealigned MMAP
        0x00000000 - 0x0009e000 Type: 1 Length: 0x9e000
        0x0009e000 - 0x000a0000 Type: 2 Length: 0x2000
        0x000e8000 - 0x00100000 Type: 2 Length: 0x18000
        0x00100000 - 0xd7e60000 Type: 1 Length: 0xd7d60000
        0xd7e6e000 - 0xd7e70000 Type: 9 Length: 0x2000
        0xd7e70000 - 0xd7e94000 Type: 3 Length: 0x24000
        0xd7e94000 - 0xd7ec0000 Type: 4 Length: 0x2c000
        0xd7ec0000 - 0xd7ee0000 Type: 2 Length: 0x20000
        0xd7eed000 - 0xd7f00000 Type: 2 Length: 0x13000
        0xd7f00000 - 0xd8000000 Type: 2 Length: 0x100000
        0xe0000000 - 0xf0000000 Type: 2 Length: 0x10000000
        0xffe00000 - 0x100000000 Type: 2 Length: 0x200000
        0x100000000 - 0x2027000000 Type: 1 Length: 0x1f27000000
kernel 0: create_caps_to_cnode: Cannot create more caps in CNode
kernel 0 PANIC! kernel assertion "err_is_ok(err)" failed at
../kernel/arch/x86_64/startup_arch.c:412
kernel 0: exception 3 (error code 0x0): vec_bp: breakpoint
Faulting instruction pointer (or next instruction): 0xffffff8007a0b251
  => i.e. unrelocated kernel address 0x110251
Registers:
 rax: 0xffffff8007a2a000  r8 : 0xffffffffffffffff
 rbx: 0xffffff8008859120  r9 : 0x0000000000000000
 rcx: 0x00000000000003f8  r10: 0x0000000000000000
 rdx: 0xffffff8007abf2e0  r11: 0x0000000000000000
 rsp: 0xffffff80082e4bc0  r12: 0x0000002027000000
 rdi: 0x0000000000000000  r13: 0xffffff8007a245f8
 rsi: 0x000000000000000a  r14: 0xffffff8008859138
 rip: 0xffffff8007a0b251  r15: 0x0000000100000000
Top o' stack:
 0       0xffffff8008859120 (18446743524096708896)
 1       0xffffff8007a0f1b8 (18446743524081725880)
 2       0xffffff8000000020 (18446743523953737760)
 3       0xffffff80082e4c30 (18446743524090989616)
 4       0xffffff80082e4bf0 (18446743524090989552)
 5       0x00000000082e4c40 (137251904)
 6       0x0000000000200010 (2097168)
 7       0xffffff8007a200f7 (18446743524081795319)
 8       0xffffff8007a21cc0 (18446743524081802432)
 9       0x000000000000019c (412)
kernel 0: Waiting for GDB connection...

Any idea what's going on?  Am I missing something I need to do to create a
new application?

Thanks so much,
Ben
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