Ok, I tried it without the rtc server and got further. But now I&#39;m getting a kernel panic, and I still don&#39;t see any output from the linux kernel. How can I get linux to output to the serial console?<div><br></div>
<div><div>l4linux | libio: Warning: Finding &#39;icu&#39; in system bus failed with &#39;No such object found&#39;</div><div>l4linux | PH  0 (t:        1) offs=00001000 vaddr=00400000 vend=005d2000</div><div>l4linux |                     phys=00400000 ephys=005d2000</div>
<div>l4linux |                     f_sz=001d1040 memsz=001d2000 flgs=r-x</div><div>l4linux | PH  1 (t:        1) offs=001d3000 vaddr=005d2000 vend=00d39000</div><div>l4linux |                     phys=005d2000 ephys=00d39000</div>
<div>l4linux |                     f_sz=006c4102 memsz=00767000 flgs=rw-</div><div>l4linux | PH  2 (t:        4) offs=0015e948 vaddr=0055d948 vend=0055d96c</div><div>l4linux |                     phys=0055d948 ephys=0055d96c</div>
<div>l4linux |                     f_sz=00000024 memsz=00000024 flgs=---</div><div>l4linux | Starting binary at 0x400000, argc=2 argv=0x80007fa0 *argv=0xb1007ff4 argv0=rom/vmlinuz</div><div>l4linux | External resolver is at 0xa80006e0</div>
<div>l4linux | ======&gt; L4Linux 2.6 starting... &lt;========</div><div>l4linux | Linux version 3.0.0-l4-svn23 (<a href="mailto:ribrdb@ribox.sfo.corp.google.com">ribrdb@ribox.sfo.corp.google.com</a>) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1) ) #15 Wed Jun 27 20:27:59 PDT 2012</div>
<div>l4linux | Binary name: rom/vmlinuz</div><div>l4linux | Linux kernel command line (1 args): mem=200M</div><div>l4linux | CPU mapping (l:p)[1]: 0:0</div><div>l4linux | Image: 00400000 - 00d39000 [9444 KiB].</div><div>l4linux | Areas: Text:     00400000 - 005d2000 [1864kB] (a bit longer)</div>
<div>l4linux |        Data:     005d2000 - 005edd20 [111kB]</div><div>l4linux |        Initdata: 005ef000 - 00c97000 [6816kB]</div><div>l4linux |        BSS:      00c98000 - 00d29000 [580kB]</div><div>l4linux | gs=43   fs=43</div>
<div>l4linux | Device scan:</div><div>l4linux | Device scan done.</div><div>l4linux | l4x_fiasco_gdt_entry_offset = 9</div><div>l4linux | upage</div><div>l4linux | l4lx_thread_create: Created thread 416 (cpu0) (u:b3000400, v:b3000600, sp:005d3ff4)</div>
<div>l4linux | main thread will be 416</div><div>l4linux | l4x_register_pointer_section: addr = 005d2000 size = 7761920</div><div>l4linux | section-with-init: virt: 0x5d2000 to 0xd38fff [7580 KiB]</div><div>l4linux | section-with-init: Phys: 0x00649000 to 0x00db0000, Size:  7761920</div>
<div>l4linux | l4x_linux_startup: thread 416.</div><div>l4linux | Main thread running, waiting...</div><div>l4linux | main thread: received startup message.</div><div>l4linux | l4x_setup_memory: Forcing superpages for main memory</div>
<div>l4linux | l4re_global_env: 0xb1007f34</div><div>l4linux | Main memory size: 200MB</div><div>l4linux |     Main memory: virt: 0x1000000 to 0xd7fffff [204800 KiB]</div><div>l4linux |     Main memory: Phys: 0x02c00000 to 0x0f400000, Size: 209715200</div>
<div>l4linux | Filling lower ptabs...</div><div>l4linux | Done (1707 entries).</div><div>l4linux | l4x_register_pointer_section: addr = 005d2000 size = 7761920</div><div>l4linux |             end: virt: 0x5d2000 to 0xd38fff [7580 KiB]</div>
<div>l4linux |             end: Phys: 0x00649000 to 0x00db0000, Size:  7761920</div><div>l4linux | l4lx_thread_create: Created thread 41d (timer.i0) (u:b3000800, v:00000000, sp:00cc3ff8)</div><div>l4linux | timer_irq_thread: Starting timer IRQ thread.</div>
<div>l4linux | panic: going to sleep forever, bye</div><div><br></div><br><div class="gmail_quote">On Wed, Jun 27, 2012 at 4:28 PM, Ryan Brown <span dir="ltr">&lt;<a href="mailto:ribrdb@gmail.com" target="_blank">ribrdb@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I&#39;ve managed to get my l4linux build to start running, but it doesn&#39;t seem to get far:<div><div>l4linux | libio: Warning: Finding &#39;icu&#39; in system bus failed with &#39;No such object found&#39;</div>
<div>4linux | PH  0 (t:        1) offs=00001000 vaddr=00400000 vend=005d1000</div>
<div>l4linux |                     phys=00400000 ephys=005d1000</div><div>l4linux |                     f_sz=001d0cb8 memsz=001d1000 flgs=r-x</div><div>l4linux | PH  1 (t:        1) offs=001d2000 vaddr=005d1000 vend=00d36000</div>

<div>l4linux |                     phys=005d1000 ephys=00d36000</div><div>l4linux |                     f_sz=006c4c10 memsz=00765000 flgs=rw-</div><div>l4linux | PH  2 (t:        4) offs=0015df14 vaddr=0055cf14 vend=0055cf38</div>

<div>l4linux |                     phys=0055cf14 ephys=0055cf38</div><div>l4linux |                     f_sz=00000024 memsz=00000024 flgs=---</div><div>l4linux | Starting binary at 0x400000, argc=3 argv=0x80007f9c *argv=0xb1007ff4 argv0=rom/vmlinuz</div>

<div>l4linux | External resolver is at 0xa80006e0</div><div>l4linux | ======&gt; L4Linux 2.6 starting... &lt;========</div><div>l4linux | Linux version 3.0.0-l4-svn23 (<a href="mailto:ribrdb@ribox.sfo.corp.google.com" target="_blank">ribrdb@ribox.sfo.corp.google.com</a>) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1) ) #10 Wed Jun 27 16:00:19 PDT 2012</div>

<div>l4linux | Binary name: rom/vmlinuz</div><div>l4linux | Linux kernel command line (2 args): mem=200M console=ttyLv0</div><div>l4linux | Configuration checks disabled, you know what you&#39;re doing.</div><div>l4linux | CPU mapping (l:p)[1]: 0:0</div>

<div>l4linux | Image: 00400000 - 00d36000 [9432 KiB].</div><div>l4linux | Areas: Text:     00400000 - 005d1000 [1860kB] (a bit longer)</div><div>l4linux |        Data:     005d1000 - 005edc60 [115kB]</div><div>l4linux |        Initdata: 005ef000 - 00c96000 [6812kB]</div>

<div>l4linux |        BSS:      00c96000 - 00d26000 [576kB]</div><div>l4linux | gs=43   fs=43</div><div>l4linux | Device scan:</div><div>l4linux | l4x_fiasco_gdt_entry_offset = 9</div></div><div><br></div><div>Then it just stops.  What&#39;s happened here? Should I see more output? Or does the kernel output go somewhere else? I&#39;ve compiled my kernel with an initramfs that does an &quot;echo hello init&quot; at the beginning of init, but I never see that.</div>

<div><br></div><div>Do I need to worry about that &#39;icu&#39; &#39;No such object found&#39;? I tried adding a capability to icu for l4linux, but that didn&#39;t seem to help.</div><div><br></div><div>Also, I&#39;m having trouble getting my io config correct. IO prints out:</div>

<div><div>io      | Loading: config &#39;rom/<a href="http://l4lx-virtio.io" target="_blank">l4lx-virtio.io</a>&#39;</div><div>io      | rom/l4lx-virtio.io:7.37-50: warning: could not find &#39;PCI/VEN_1AF4&#39;</div></div>
<div><br></div>
<div>but then later on I see:</div><div><br></div><div><div>io      |     P6Device: S4__ &quot;&quot;</div><div>io      |     Hw::Device[S4__]</div><div>io      |       0000:00:04.0: display controller [0]</div><div>io      |                     0x1af4 0x1000</div>

<div>io      |                     Red Hat, Inc Virtio network device</div><div>io      |       IOPORT  [0000000000c000-0000000000c03f 40] non-pref (32bit) (align=3f flags=4a03)</div><div>io      |       IRQ     [0000000000000b-0000000000000b 1] level high (32bit) (align=0 flags=104201)</div>

</div><div><br></div><div>What&#39;s up with that?</div><div><br></div><div>Here&#39;s my settings:</div><div><br></div><div>modules.list:</div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div><div>entry L4Linux-virtio</div>

</div><div><div>kernel fiasco -serial_esc</div></div><div><div>roottask moe rom/l4lx-virtio.cfg</div></div><div><div>module l4re</div></div><div><div>module ned</div></div><div><div>module l4lx-virtio.cfg</div></div><div>

<div>module io</div></div><div><div>module rtc</div></div><div><div>module x86-legacy.devs</div></div><div><div>module <a href="http://l4lx-virtio.io" target="_blank">l4lx-virtio.io</a></div></div><div><div>module vmlinuz</div>
</div></blockquote>
<div><br></div><div>l4lx-virtio.cfg</div><div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div><div>loader = L4.default_loader;</div><div><br></div><div>bus_linux = loader:new_channel();</div><div>bus_rtc = loader:new_channel();</div>

<div>rtc_cap = loader:new_channel();</div><div><br></div><div>loader:start({</div><div>  caps = {</div><div>    rom = rom;</div><div>    sigma0 = L4.cast(L4.Proto.Factory, L4.Env.sigma0):create(L4.Proto.Sigma0);</div><div>

    l4linux = bus_linux:svr();</div><div>    icu = L4.Env.icu;</div><div>    rtc_bus = bus_rtc:svr();</div><div>  },</div><div>  log = { &quot;io&quot;, &quot;red&quot; },</div><div>}, &quot;rom/io -vvvv rom/x86-legacy.devs rom/<a href="http://l4lx-virtio.io" target="_blank">l4lx-virtio.io</a>&quot;);</div>

<div><br></div><div>loader:start({</div><div>  caps = {</div><div>    rom = rom;</div><div>    vbus = bus_rtc;</div><div>    rtc = rtc_cap:svr();</div><div>  },</div><div>  log = { &quot;rtc&quot;, &quot;green&quot; },</div>

<div>}, &quot;rom/rtc&quot;);</div><div><br></div><div>L4.default_loader:start(</div><div>  { caps = {</div><div>      log = L4.Env.log:m(&quot;rws&quot;);</div><div>      vbus = bus_linux;</div><div>      rtc = rtc_cap;</div>

<div>    },</div><div>    l4re_dbg = L4.Dbg.Warn,</div><div>    log = { &quot;l4linux&quot;, &quot;yellow&quot; },</div><div>  },</div><div>  &quot;rom/vmlinuz mem=200M console=ttyLv0 &quot;);</div></div><div><br></div></blockquote>

<a href="http://l4lx-virtio.io" target="_blank">l4lx-virtio.io</a></div><div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div><div>l4linux =&gt; new System_bus()</div><div>{</div><div>  # Add a new virtual PCI root bridge</div>

<div>  PCI0 =&gt; new PCI_bus()</div><div>  {</div><div>    # Allow access to virtio devices.</div><div>    pci_l4x[] =&gt; wrap(hw-root.match(&quot;PCI/VEN_1AF4&quot;));</div><div>  }</div><div>}</div></div><div><br></div>

</blockquote></div>
</blockquote></div><br></div>