Description of problem: When boot Dom0 with kernel-xen-2.6.18-194.2.1.el5 (x86_64 in this case, haven't try i386) , it will failed with error "request_module: runaway loop modprobe binfmt-464c". The kernel works well on some machines (such as Dell 755, cpu : intel E8400 ), I hit this problem on a HP Workstation xw4550 (cpu model : Dual-Core AMD Opteron(tm) Processor 1220 ). Version-Release number of selected component (if applicable): kernel-xen-2.6.18-194.2.1.el5 How reproducible: on some machines (HP Workstation xw4550 in this case) Steps to Reproduce: 1. install RHEL-Server-5.4 x86_64 2. update kernel-xen to kernel-xen-2.6.18-194.2.1.el5 and boot up grub.conf ---------------- title Red Hat Enterprise Linux Server (2.6.18-194.2.1.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-194.2.1.el5 console=com1 com1=115200n8 module /vmlinuz-2.6.18-194.2.1.el5xen ro root=LABEL=/ console=tty0 console=ttyS0,115200n8 module /initrd-2.6.18-194.2.1.el5xen.img ---------------- Actual results: Call trace attached. Expected results: Dom0 should boot up successfully Additional info:
Created attachment 409762 [details] Dom0 serial console ouput
Created attachment 409764 [details] dmidecode output of HP Workstation xw4550
(In reply to comment #0) > Description of problem: > When boot Dom0 with kernel-xen-2.6.18-194.2.1.el5 (x86_64 in this case, haven't > try i386) , it will failed with error "request_module: runaway loop modprobe > binfmt-464c". I've seen this before if you are trying to boot a 32-bit dom0 on a 64-bit hypervisor, or a 32-bit kernel with 64-bit modules (or vice-versa). How did you install this kernel, and are you sure that it's x86_64? Chris Lalancette
(In reply to comment #3) > (In reply to comment #0) > > Description of problem: > > When boot Dom0 with kernel-xen-2.6.18-194.2.1.el5 (x86_64 in this case, haven't > > try i386) , it will failed with error "request_module: runaway loop modprobe > > binfmt-464c". > > I've seen this before if you are trying to boot a 32-bit dom0 on a 64-bit > hypervisor, or a 32-bit kernel with 64-bit modules (or vice-versa). How did > you install this kernel, and are you sure that it's x86_64? > > Chris Lalancette Thanks Chris, I checked it, it's 32-bit Dom0 indeed, that's my fault. $ rpm -qf --qf "%{name}-%{version}-%{release}-%{arch}\n" /boot/vmlinuz-2.6.18-194.2.1.el5xen kernel-xen-2.6.18-194.2.1.el5-i686