On 12/7/05, Christoph Dwertmann <[EMAIL PROTECTED]> wrote: > On Wed, Dec 07, 2005 at 07:09:47PM +0100, Blaisorblade wrote: > > On Wednesday 07 December 2005 17:07, Christoph Dwertmann wrote: > > > Hi! > > > > > I'm trying to build my own UML kernel here. It builds fine, but > > > executing the kernel leads to: > > > > > GDB shows this: > > > > > Program received signal SIGSEGV, Segmentation fault. > > > 0xa028a2d5 in __libc_setup_tls () > > > Current language: auto; currently asm > > > (gdb) bt > > > #0 0xa028a2d5 in __libc_setup_tls () > > > #1 0xa028a66f in __pthread_initialize_minimal () > > > #2 0xa028a045 in __libc_start_main () > > > #3 0xa0014021 in _start () at ../sysdeps/i386/elf/start.S:119 > > > > Ok, it's due to some weird toolchain-related bug. > > > > > I've built kernels 2.4.23, 2.4.27, 2.4.28 and 2.6.14 with > > > Blaisorblade's UML patches. The host kernel is 2.6.15-rc5 vanilla, and > > > I'm running Debian sid (updated daily) on x86. > > > > Ok, it's a bug in some new binutils/GCC/glibc. While we try to debug the > > thing, can you post the releases of these 3 components? Also, can you upload > > somewhere and post the URL of your compressed "ld" binary? > > Hi, thanks for your reply. Here's my configuration: > > alderaan:~/uml# gcc --version > gcc (GCC) 4.0.3 20051201 (prerelease) (Debian 4.0.2-5) > > alderaan:~/uml# dpkg -l | grep binutils > ii binutils 2.16.1cvs20051117-1 > > alderaan:~/uml# dpkg -l | grep glibc > ii libstdc++2.10-glibc2.2 2.95.4-24 > (is this the package containing glibc?) > > alderaan:~/uml# dpkg -l | grep libc6 > ii libc6 2.3.5-8.1 > ii libc6-dev 2.3.5-8.1 > > Grab my ld binary here: > http://www.informatik.uni-bremen.de/~nermal/ld.bz2 > > > Btw, to help with the current problem (while fixing the bug), have you any > > need unsatisified by existing binaries (either on my site or on > > uml.nagafix.co.uk ?). > > yeah I need to apply a few custom kernel patches, and maybe modify > them to fit my needs. I really need to be able to compile my own UML > kernels. But thanks for the offer! > > > > Renaming /lib/tls does not help. > > > > Even doing that on the host? In this (exceptional) case, the result of that > > may be useful. > > I just re-checked that: it makes no difference. > > I noticed that most of the people having this error use a recent > Debian or Gentoo system. The cause must be somewhere in my build > system, as precompiled binaries run. > > Thanks, > > Christoph
Hey Blaisorblade and all the others, does anyone have any idea what causes this instant segfault? I'm still stuck here. Thanks, Christoph ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37&alloc_id865&op=click _______________________________________________ User-mode-linux-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
