| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 04 Jun 2012 23:30:12 +0200 From: Toralf Förster <toralf.foerster@....de> To: Linux Kernel <linux-kernel@...r.kernel.org> Subject: chroot under kernel 3.4.x gives core dumps When I try under both kernel versions to chroot into a user mode linux image, I often get this : + mount -o loop /home/tfoerste/virtual/uml/gentoo_unstable /mnt/loop + mount -t proc none /mnt/loop/proc + mount -o bind /dev /mnt/loop/dev + mount -o bind /dev/pts /mnt/loop/dev/pts + mount -o bind /usr/portage /mnt/loop/usr/portage + mount -o bind /usr/local/portage /mnt/loop/usr/local/portage + mount -o bind /tmp/uml_portage /mnt/loop/var/tmp/portage + chroot /mnt/loop /bin/bash /home/tfoerste/workspace/bin/chr_uml.sh: line 55: 4143 Segmentation fault (core dumped) chroot /mnt/loop /bin/bash The core file itself is only 400 KB in size and the back trace with gbd is meaningless : Core was generated by `/bin/bash'. Program terminated with signal 11, Segmentation fault. #0 0xb75cac00 in ?? () (gdb) bt #0 0xb75cac00 in ?? () #1 0xb76f4ff4 in ?? () Cannot access memory at address 0xffffffdc In the rare cases, where the chroot doesn't crash, all subsequent commands cores instead. Furthermore it seems, that the boinc grid software has problems too under kernel 3.4.1. All kernel 3.3.x works fine. -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists