<br>Hi all,<br><br>I'm new with netkit as well as with kernel building and I'm <br>having some trouble setting up a custom kernel for netkit.<br>I've tried both the ways that come in netkit's documentation <br>
(automatic and manual) and tried a few more tweaks by myself.<br><br>Compiling the customized kernel always goes OK, in whatever <br>way I do it, but the netkit's virtual machines crash on <br>booting. The trace results (you can check them at the end of <br>
the e-mail below) are always extremely similar to another <br>issue reported on the netkit mailing list:<br><a href="http://list.dia.uniroma3.it/pipermail/netkit.users/2010-November/000686.html">http://list.dia.uniroma3.it/pipermail/netkit.users/2010-November/000686.html</a><br>
I've also tried the approach explained in this thread but <br>ended up with the same result as before.<br><br><br>Does anyone have any hint on what is causing this or how to <br>solve it?<br><br>Thanks in advance,<br>
Best Regards,<br><br>Rui Costa<br><br><br><br><br><br>Here is the Netkit output:<br><br>============= Starting virtual machine "pc1" =============<br> Kernel: /home/user-netkit/Desktop/netkit/custom-kernel/netkit/kernel/linu<br>
x-2.6.26.5/linux<br> Memory: 32 MB<br> Model fs: /home/user-netkit/Desktop/netkit/netkit/fs/netkit-fs<br> Filesystem: /home/user-netkit/Desktop/netkit/pc1.disk (new)<br> Hostfs at: /home/user-netkit<br> Other args: sch_teql.max_equalizers=0<br>
<br>Running ==> /home/user-netkit/Desktop/netkit/custom-kernel/netkit/kernel/linux-2<br>.6.26.5/linux name=pc1 title=pc1 umid=pc1 mem=36M ubd0=/home/user-netkit/Desktop<br>/netkit/pc1.disk,/home/user-netkit/Desktop/netkit/netkit/fs/netkit-fs root=98:1<br>
uml_dir=/home/user-netkit/.netkit/mconsole hosthome=/home/user-netkit sch_teql.<br>max_equalizers=0 quiet con0=fd:0,fd:1 con1=null SELINUX_INIT=0<br>Locating the bottom of the address space ... 0x10000<br>Locating the top of the address space ... 0xc0000000<br>
Core dump limits :<br> soft - 0<br> hard - NONE<br>0xc0000000<br>Core dump limits :<br> soft - 0<br> hard - NONE<br>0xc0000000<br>Core dump limits :<br> soft - 0<br> hard - NONE<br>
0xc0000000<br>Core dump limits :<br> soft - 0<br> hard - NONE<br>Checking for tmpfs mount on /dev/shm...OK<br>Checking PROT_EXEC mmap in /dev/shm/...OK<br>OK<br>OK<br>OK<br>UML running in SKAS0 mode<br>Adding 2260992 bytes to physical memory to account for exec-shield gap<br>
Checking that ptrace can change system call numbers...OK<br>Checking syscall emulation patch for ptrace...OK<br>Checking advanced syscall emulation patch for ptrace...OK<br>Checking for the skas3 patch in the host:<br> - /proc/mm...not found: No such file or directory<br>
- PTRACE_FAULTINFO...not found<br> - PTRACE_LDT...not found<br>*** buffer overflow detected ***: /home/user-netkit/Desktop/netkit/custom-kernel<br>/netkit/kernel/linux-2.6.26.5/linux terminated<br>======= Backtrace: =========<br>
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x50)[0x1f2390]<br>/lib/tls/i686/cmov/libc.so.6(+0xe12ca)[0x1f12ca]<br>/lib/tls/i686/cmov/libc.so.6(+0xe0c29)[0x1f0c29]<br>/lib/tls/i686/cmov/libc.so.6(__snprintf_chk+0x34)[0x1f0b14]<br>
/home/user-netkit/Desktop/netkit/custom-kernel/netkit/kernel/linux-2.6.26.5/linu<br>x[0x808cdee]<br>[0x0]<br>======= Memory map: ========<br>00110000-00263000 r-xp 00000000 68:01 9438224 /lib/tls/i686/cmov/libc-2.11.1.<br>
so<br>00263000-00264000 ---p 00153000 68:01 9438224 /lib/tls/i686/cmov/libc-2.11.1.<br>so<br>00264000-00266000 r-xp 00153000 68:01 9438224 /lib/tls/i686/cmov/libc-2.11.1.<br>so<br>00266000-00267000 rwxp 00155000 68:01 9438224 /lib/tls/i686/cmov/libc-2.11.1.<br>
so<br>00267000-0026a000 rwxp 00000000 00:00 0<br>0026a000-00272000 r-xp 00000000 68:01 9438245 /lib/tls/i686/cmov/libnss_nis-2<br>.<a href="http://11.1.so">11.1.so</a><br>00272000-00273000 r-xp 00007000 68:01 9438245 /lib/tls/i686/cmov/libnss_nis-2<br>
.<a href="http://11.1.so">11.1.so</a><br>00273000-00274000 rwxp 00008000 68:01 9438245 /lib/tls/i686/cmov/libnss_nis-2<br>.<a href="http://11.1.so">11.1.so</a><br>00276000-00291000 r-xp 00000000 68:01 9306137 /lib/<a href="http://ld-2.11.1.so">ld-2.11.1.so</a><br>
00291000-00292000 r-xp 0001a000 68:01 9306137 /lib/<a href="http://ld-2.11.1.so">ld-2.11.1.so</a><br>00292000-00293000 rwxp 0001b000 68:01 9306137 /lib/<a href="http://ld-2.11.1.so">ld-2.11.1.so</a><br>00402000-00404000 rwxp 00000000 00:00 0<br>
00429000-00446000 r-xp 00000000 68:01 9306195 /lib/libgcc_s.so.1<br>00446000-00447000 r-xp 0001c000 68:01 9306195 /lib/libgcc_s.so.1<br>00447000-00448000 rwxp 0001d000 68:01 9306195 /lib/libgcc_s.so.1<br>004f9000-004fc000 rwxp 00000000 00:00 0<br>
00681000-00694000 r-xp 00000000 68:01 9438235 /lib/tls/i686/cmov/libnsl-2.11.<br>1.so<br>00694000-00695000 r-xp 00012000 68:01 9438235 /lib/tls/i686/cmov/libnsl-2.11.<br>1.so<br>00695000-00696000 rwxp 00013000 68:01 9438235 /lib/tls/i686/cmov/libnsl-2.11.<br>
1.so<br>00696000-00698000 rwxp 00000000 00:00 0<br>0072f000-00730000 rwxp 00000000 00:00 0<br>00747000-00748000 rwxp 00000000 00:00 0<br>008a2000-008a3000 r-xp 00000000 00:00 0 [vdso]<br>009c0000-009ca000 r-xp 00000000 68:01 9438241 /lib/tls/i686/cmov/libnss_files<br>
-<a href="http://2.11.1.so">2.11.1.so</a><br>009ca000-009cb000 r-xp 00009000 68:01 9438241 /lib/tls/i686/cmov/libnss_files<br>-<a href="http://2.11.1.so">2.11.1.so</a><br>009cb000-009cc000 rwxp 0000a000 68:01 9438241 /lib/tls/i686/cmov/libnss_files<br>
-<a href="http://2.11.1.so">2.11.1.so</a><br>00d36000-00d37000 rwxp 00000000 00:00 0<br>00d9b000-00d9d000 r-xp 00000000 68:01 9438258 /lib/tls/i686/cmov/libutil-2.11<br>.1.so<br>00d9d000-00d9e000 r-xp 00001000 68:01 9438258 /lib/tls/i686/cmov/libutil-2.11<br>
.1.so<br>00d9e000-00d9f000 rwxp 00002000 68:01 9438258 /lib/tls/i686/cmov/libutil-2.11<br>.1.so<br>00e05000-00e0b000 r-xp 00000000 68:01 9438237 /lib/tls/i686/cmov/libnss_compa<br><a href="http://t-2.11.1.so">t-2.11.1.so</a><br>
00e0b000-00e0c000 r-xp 00006000 68:01 9438237 /lib/tls/i686/cmov/libnss_compa<br><a href="http://t-2.11.1.so">t-2.11.1.so</a><br>00e0c000-00e0d000 rwxp 00007000 68:01 9438237 /lib/tls/i686/cmov/libnss_compa<br><a href="http://t-2.11.1.so">t-2.11.1.so</a><br>
08048000-08422000 rwxp 00000000 68:01 12327718 /home/user-netkit/Desktop/netki<br>t/custom-kernel/netkit/kernel/linux-2.6.26.5/linux<br>08422000-08446000 rwxp 00000000 00:00 0<br>0864d000-0866e000 rwxp 00000000 00:00 0 [heap]<br>
0866e000-0a670000 rwxs 00626000 00:10 8225 /dev/shm/vm_file-RhLyFA (delete<br>d)<br>bf8fb000-bf910000 rwxp 00000000 00:00 0 [stack]<br>Terminated<br><br>