From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041228 Firefox/1.0 Fedora/1.0-8 Description of problem: When my system boots to xen it hangs with no response from the screen. The exact nature of the hang seems to depend if I turn off ACPI or not. Version-Release number of selected component (if applicable): kernel-xen0-2.6.10-1.1143_FC4 How reproducible: Always Steps to Reproduce: 1. install Xen and xen kernel 2. boot 3. choose xen from grub Actual Results: kernel boot ends at varied points with a total system hang. Expected Results: system should have booted fully Additional info: I have come from FC3 to add the development packages by using yum install xen. I also end up with a problem with rpm (separate bug), but that seems to be unrelated.
booting to non graphical mode by editing the first module line (which actually contains the linux kernel arguments) works around this problem. I think that the actual problem is an X-server hang of some kind triggered by xen.
I tested this, by pinging the machine continually. At the time the X server starts, the system stops responding to ping. If I pass acpi=off to the kernel, then the screen freezes, (just after the message "Starting HAL daemon") but the system still boots okay and I can get in via SSH. Maybe it's this problem below, but I thought the RedHat xen was already the latest version?:- Xen FAQ: http://www.cl.cam.ac.uk/Research/SRG/netos/xen/faq.html 3.5 I'm trying to get X working in domain 0 but the server seems to hang (or domain 0 panics). What's going on? It's likely your X server is trying to use agpgart, support for which is currently included only in the 2.0-testing and unstable trees. Try downloading a new tarball, or clone one of the BK repositories.
Could you please give me the output of lspci so I can see what kind of video card, mainboard chipset, etc your laptop has? Also, could you try starting X after "mv /usr/X11R6/lib/modules/linux/libint10.a /usr/X11R6/lib/modules/linux/unused-libint10.a", so X tries starting up using the emulation code, instead of using VM86 code ?
Created attachment 111442 [details] lspci taken on thinkpad R51 whilst booted into non xen kernel this is the output of lspci on the laptop whilst running the normal working 2.6 kernel. uname: Linux XXXX 2.6.10-1.1142_FC4 #1 Mon Feb 14 22:13:32 EST 2005 i686 i686 i386 GNU/Linux
Created attachment 111443 [details] boot logs showing crashes including with moved X VM86 component I tried the move that you suggested and it didn't seem to make any difference. Here are various boot logs and a dmesg in file names which should be self explanatory.
try to get rid of needinfo status by putting in a comment..
Added to my TODO list - I think I have some similar hardware around, with intel agp bridge and radeon video card. Not quite the same, but it'll probably hang in the same way if it's a pure software bug.
Robin Green found a logic inversion in one of my patches, in the FPU state saving code path. Graphics seems more stable on my system here, now. I don't know whether it'll fix things for you, but there's a chance that kernel 2.6.11-1.1176_FC4 will fix them, so please try them out and change the status of the bug back to ASSIGNED if things are still broken.
Closing due to inactivity. Please reopen if this is still a problem in FC5 test3
I finally managed to get my hands on the same system again with the ability to reinstall. With FC5 final release, there is no problem booting with kernel-Xen0 active, so this particular bug should be closed.
I finally managed to get my hands on the same system again with the ability to reinstall. With FC5 final release, there is no problem booting with kernel-Xen0 active, so this particular bug should stay closed.