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<p>It seems that you have compiled RTEMS with a gcc version that can
use %fpu registers to move integer data. The work-around could be
to compile the kernel with -msoft-float, or to move to a (later)
version of gcc that does not do this anymore. Which gcc version do
you use?</p>
Jiri.<br>
<br>
<div class="moz-cite-prefix">On 22/10/16 01:22, Duran, Steve
(JSC-ER611) wrote:<br>
</div>
<blockquote cite="mid:17DD1E65-0976-4E4E-946B-2A7BCA0C8917@nasa.gov"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<div class="">I am trying to get and RTEMS kernel to boot on the
SPARC ut700 development board. There appears to be an issue in
the RTEMS networking code that must use floating point, but for
some reason the FPU has been disabled.</div>
<div class=""><br class="">
</div>
<div class="">Details below. Any insights into how to resolve
this issue would be appreciated.</div>
<div class=""><br class="">
</div>
<div class="">Development environment setup on:</div>
<div class="">
<div class="">Setup on:</div>
<div class="">CentOS Linux release 7.2.1511 (Core) </div>
<div class="">Linux spartan117 3.10.0-327.22.2.el7.x86_64 #1 SMP
Thu Jun 23 17:05:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux</div>
</div>
<div class=""><br class="">
</div>
<div class="">
<div class="">$ git clone <a moz-do-not-send="true"
href="git://git.rtems.org/rtems.git" class="">git://git.rtems.org/rtems.git</a>
rtems</div>
<div class="">$ git checkout -b rtems411 origin/4.11</div>
</div>
<div class=""><br class="">
</div>
<div class="">Loading through grmon2, starting to run, error
messages, and some debug info:</div>
<div class=""><br class="">
</div>
<div class="">
<div class=""> GRMON2 LEON debug monitor v2.0.74 32-bit pro
version</div>
<div class=""> </div>
<div class=""> Copyright (C) 2016 Cobham Gaisler - All rights
reserved.</div>
<div class=""> For latest updates, go to <a
moz-do-not-send="true" href="http://www.gaisler.com/"
class="">
http://www.gaisler.com/</a></div>
<div class=""> Comments or bug-reports to <a
moz-do-not-send="true" href="mailto:support@gaisler.com"
class="">
support@gaisler.com</a></div>
<div class=""><br class="">
</div>
<div class=""> using port /dev/ttyUSB4 @ 460800 baud</div>
<div class=""> Device ID: 0x699</div>
<div class=""> GRLIB build version: 4110</div>
<div class=""> Detected system: UT699E/UT700</div>
<div class=""> Detected frequency: 125 MHz</div>
<div class=""> </div>
<div class=""> Component Vendor</div>
<div class=""> LEON3-FT SPARC V8 Processor Cobham
Gaisler</div>
<div class=""> AHB Debug UART Cobham
Gaisler</div>
<div class=""> JTAG Debug Link Cobham
Gaisler</div>
<div class=""> Fast 32-bit PCI Bridge Cobham
Gaisler</div>
<div class=""> PCI/AHB DMA controller Cobham
Gaisler</div>
<div class=""> GR Ethernet MAC Cobham
Gaisler</div>
<div class=""> GRSPW2 SpaceWire Serial Link Cobham
Gaisler</div>
<div class=""> GRSPW2 SpaceWire Serial Link Cobham
Gaisler</div>
<div class=""> GRSPW2 SpaceWire Serial Link Cobham
Gaisler</div>
<div class=""> GRSPW2 SpaceWire Serial Link Cobham
Gaisler</div>
<div class=""> MIL-STD-1553B Interface Cobham
Gaisler</div>
<div class=""> Memory controller with EDAC Cobham
Gaisler</div>
<div class=""> AHB/APB Bridge Cobham
Gaisler</div>
<div class=""> LEON3 Debug Support Unit Cobham
Gaisler</div>
<div class=""> AHB/APB Bridge Cobham
Gaisler</div>
<div class=""> OC CAN AHB interface Cobham
Gaisler</div>
<div class=""> Generic UART Cobham
Gaisler</div>
<div class=""> Multi-processor Interrupt Ctrl. Cobham
Gaisler</div>
<div class=""> Modular Timer Unit Cobham
Gaisler</div>
<div class=""> Clock gating unit Cobham
Gaisler</div>
<div class=""> PCI Arbiter European
Space Agency</div>
<div class=""> General Purpose I/O port Cobham
Gaisler</div>
<div class=""> AHB Status Register Cobham
Gaisler</div>
<div class=""> SPI Controller Cobham
Gaisler</div>
<div class=""> General Purpose Register Cobham
Gaisler</div>
<div class=""> </div>
<div class=""> Use command 'info sys' to print a detailed
report of attached cores</div>
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
40085000 .eefs_ram 512.0kB / 512.0kB
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
40000000 .tarfs_ram 530.0kB / 530.0kB
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
40405000 .text 815.8kB / 815.8kB
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
404D0F20 .rtemsroset 304B
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
404D1050 .data 13.3kB / 13.3kB
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
404D4560 .jcr 4B
[===============>] 100%<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Total size: 1.83MB (362.50kbit/s)<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Entry point 0x40405000<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Image
/home/sduran/sparc_leon3/SPARC_LEON3_Workspace/ut700/rtems4.11-kernel/rki.elf
loaded<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
RTEMS Kernel Image Booting<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
*** RTEMS Info ***<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
COPYRIGHT (c) 1989-2008.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
On-Line Applications Research Corporation (OAR).<o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
rtems-4.10.99.0(SPARC/w/FPU/leon3)<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
BSP Ticks Per Second = 100<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
*** End RTEMS info ***<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Populating Root file system from TAR file.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Starting RTEMS network configuration<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
RTEMS network config: All structures filled out, now calling
init functions<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Convert ethernet address<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Converting: 00:00:7a:cc:00:16<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Calling rtems_bsdnet_initialize_network<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
greth: driver attached<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
**** PHY ****<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Vendor: 80017 Device: 9 Revision: 0<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Current Operating Mode: 100 Mbit Full Duplex<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Autonegotiation Time: 1739ms<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
RTEMS bsdnet_initialize_network returned OK<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Hostname is gfe02.local<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Device gr_eth1, netmask 255.255.255.0, address
139.169.132.128<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
gateway 139.169.132.1, dns1 139.169.132.1, dns2 (null)<o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Starting the FTP Server.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
syslog: ftpd: FTP daemon started (1 session max)<o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Setting up filesystems.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Initializing Local Commands.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Running /shell-init.<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
1: mkdir ram0<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
2: mkdir ram<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
3: mkrfs /dev/rd0<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
4: mount -t rfs /dev/rd0 /ram0<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
mounted /dev/rd0 -> /ram0<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
5: hello<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Hello RTEMS!<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Create your own command here!<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Starting shell....<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
RTEMS Shell on /dev/console. Use 'help' to list commands.<o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
[/] # Unexpected trap (0x04) at address 0x404A6764<o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
fp disabled<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Program exited normally.<o:p class=""></o:p></div>
</div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""></o:p></div>
</div>
<div class="">
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
From UT700_LEON_Functional_Manual.pdf<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Trap table on page 18:<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
TRAP TT PRI Description<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
fp_disabled 0x04 6 FP instruction while FPU disabled<o:p
class=""></o:p></div>
</div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
grmon2> dis 0x404A6764<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
0x404a6764: d11861b0 ldd [%g1 + 0x1B0], %f8
<_svfprintf_r+100><o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
0x404a6768: a410a250 or %g2, 0x250, %l2
<_svfprintf_r+104><o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
0x404a676c: 39101341 sethi %hi(0x404D0400), %i4
<_svfprintf_r+108><o:p class=""></o:p></div>
</div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""> </o:p></div>
</div>
<div class="">
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
grmon2> bt<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
Inside trap/irq<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
%pc %sp <o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#0 0x40417e40 0x404e6158 <syscall+0><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#1 0x404ba880 0x404e61b8 <_CPU_Fatal_halt+0x8><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#2 0x40442d68 0x404e6218 <_Terminate+0x48><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#3 0x40441720 0x404e6288 <rtems_fatal+0xc><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#4 0x40416044 0x404e62e8
<bsp_spurious_handler+0xc><o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#5 0x404bae24 0x404e6350<o:p class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#6 0x404a6710 0x40528180 <_svfprintf_r+0x10><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#7 0x404a20b4 0x40528428 <sprintf+0x50><o:p
class=""></o:p></div>
</div>
<div class="">
<div style="margin: 0in 0in 0.0001pt; font-size: 12pt;
font-family: 'Times New Roman';" class="">
#8 0x4046eb68 0x40528500 <inet_ntop4+0x1c><o:p
class=""></o:p></div>
</div>
<div class="">
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#9 0x4046ee90 0x40528570 <inet_ntop+0x2e8><o:p
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#10 0x4046eb3c 0x40528628 <inet_ntoa+0x54><o:p
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#11 0x40474a90 0x40528690 <arplookup+0xb8><o:p
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#12 0x404754c0 0x405286f8 <arpintr+0x1d4><o:p
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#13 0x40434048 0x40528788 <networkDaemon+0xa8><o:p
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#14 0x40433db4 0x405287f0 <taskEntry+0x1c><o:p
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#15 0x40499058 0x40528850
<_Thread_Handler+0xb8><o:p class=""></o:p></div>
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#16 0x40498fa0 0x405288b0 <_Thread_Handler+0><o:p
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So it would appear that RTEMS is in networking code, calling
sprintf, trying to perform a floating point operation but for
some reason the FPU has been disabled.</div>
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