http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1108

Summary: [Dom0] Segmentation fault when 32e Dom0 chroot to 32pae root file system Product: Xen Version: unstable Platform: Other OS/Version: All Status: NEW Severity: normal Priority: P2 Component: Unspecified AssignedTo: xen-...@lists.xensource.com ReportedBy: yong...@intel.com

Environment: ------------ Service OS (ia32/ia32e/IA64): IA32e Guest OS (ia32/ia32e/IA64): IA32e Change Set: At least 16281~16366 Hardware: Clovertown

Bug detailed description: -------------------------- In (and before) xen-unstable #16157, 64bit Dom0 can do a chroot into a 32bit root file system. But since #16281, when doing chroot from 64 Dom0 to 32bit root file system, it would report "Segmentation Fault". It is still okay to chroot to a 64bit file system.

And this issue won't happen, if just booting up Dom0 and without doing any HVM domain creating operations.

I tried with Native 64bit Linux, this operation is okay. So I think it is a new issue. I have reported it mailling list.

Reproduce steps: ---------------- 1. /dev/sda1 is 64bit Dom0 system; sda2 is a 32bit Linux system. 2. Boot to sda1 Dom0. 3. Create a HVM domain. 4. mount /dev/sda2 /mnt/sda2 5. chroot /mnt/sda2