Red Hat Bugzilla – Full Text Bug Listing
|Summary:||Xen Domain0 Fails To Boot - Not Enough Memory|
|Product:||[Fedora] Fedora||Reporter:||jon westlake <jonathanwestlake>|
|Component:||xen||Assignee:||Rik van Riel <riel>|
|Status:||CLOSED RAWHIDE||QA Contact:|
|Version:||4||CC:||aph, bugz, gert, hoffmann, lsof, maxx, ruaidhri, sct, sta040|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2006-02-24 15:12:33 EST||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description jon westlake 2005-11-03 17:45:56 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b5) Gecko/20051006 Firefox/1.4.1 Description of problem: When booting 2.6.13-1.1532_FC4xen0 kernel hangs almost immediately with complaint about domain allocation - something like CPU0 Panic Domain 0 allocation is too small for kernel image The kernel then auto-reboots after a very short time, so full details difficult to get. Version-Release number of selected component (if applicable): xen-2-20050823 / kernel-xen0-2.6.13-1.1532_FC4 How reproducible: Always Steps to Reproduce: 1.Boot the xen0 option of grub 2. 3. Actual Results: Same error followed by reboot as above Additional info:
Comment 1 Andrew Haley 2005-11-04 06:14:44 EST
I have duplicated this on my box, kernel-xen0-2.6.13-1.1532_FC4 & kernel-xenU-2.6.13-1.1532_FC4.
Comment 2 Andrew Haley 2005-11-04 06:47:55 EST
2.6.12-1.1454_FC4.i686.rpm does boot, but networking is nonfunctional. It seems that although the box does transmit correctly and I can verify that by looking at a tcpdump on another box, no packets are received. My dmesg contains this: e100: Intel(R) PRO/100 Network Driver, 3.4.8-k2-NAPI e100: Copyright(c) 1999-2005 Intel Corporation e100: eth0: e100_probe: addr 0xcfe00000, irq 16, MAC addr 00:90:27:8C:D8:19 ... e100: eth0: e100_watchdog: link up, 100Mbps, half-duplex ... eth0: no IPv6 routers present e100: eth0: e100_watchdog: link up, 100Mbps, half-duplex eth0: no IPv6 routers present e100: eth0: e100_watchdog: link up, 100Mbps, half-duplex eth0: no IPv6 routers present e100: eth0: e100_watchdog: link up, 100Mbps, half-duplex eth0: no IPv6 routers present device eth0 entered promiscuous mode NETDEV WATCHDOG: eth0: transmit timed out e100: eth0: e100_watchdog: link up, 100Mbps, half-duplex
Comment 3 Tim Born 2005-11-27 21:28:18 EST
FWIW I was able to reproduce Andrew's situation and can confirm that: kernel-xen0.i686 2.6.13-1.1532_FC4 updates-releasedkernel-xenU.i686 2.6.13-1.1532_FC4 updates-releasedxen.i386 2-20050823 ... will fail to boot up with an error message of "Domain 0 allocation is too small for kernel" Following the advice on the Fedora Xen Quickstart (http://www.fedoraproject.org/wiki/FedoraXenQuickstart#head-3a85df2e27189c12a2b8f045bfef3b2a759bb2ef) I also installed: kernel-xen0.i686 2.6.12-1.1454_FC4 kernel-xenU.i686 2.6.12-1.1454_FC4 xen.i386 3.0-0.20050912.fc4 ... and I also have no networking, although in my case it doesn't seem to even try to come up, and none of my prodding so far has gotten anything resembling a network connection to come up.
Comment 4 Maxx Lobo 2005-12-14 20:56:42 EST
I can also confirm this problem. Is there going to be an update on how to fix it?
Comment 5 Gert van Spijker 2005-12-15 09:23:14 EST
Just like Tim I tried the kernel from the current yum repository as well as the one suggested in the Fedora Xen Quickstart: "2.6.12-1.1456_FC4xen0 has been known to work with the xen RPM available from [WWW] Riel's homepage" However, the kernel listed here is not 2.6.12-1.1456_FC4xen0 but 2.6.12-1.1454_FC4 Is somebody working on this issue?
Comment 6 Joost van der Locht 2006-01-03 15:40:53 EST
Same problem here.... I tried the alternative kernels as in the advice of the FC Xen QS. But I had to compile a kernelmodule for a Areca Sata controller. De building works without an error (after fixed the asm linking). Also created a new initrd. But after a reboot the new made kernelmodule fails. BTW no error for the memory problem.
Comment 7 Stephen Tweedie 2006-01-18 13:09:24 EST
*** Bug 172079 has been marked as a duplicate of this bug. ***
Comment 8 Stephen Tweedie 2006-01-18 13:16:06 EST
re comment #2: the networking issue is very different; if you can still reproduce that, please open a separate bug for it. (I suspect it may be the issue described in bug 177794.)
Comment 9 Stephen Tweedie 2006-01-18 13:17:41 EST
There has been a significant rebasing of the kernel and HV images for fc5t2. Can you still reproduce the problem? If so, then this sounds like a mismatch between the memory calculations in the HV/bootloader and the kernel. The full Xen logs would be really useful in tracking this down; is it possible for you to capture that to a serial console? That, in conjunction with the normal non-xen boot logs, should let us examine the memory maps being computed in both cases to see if there's a mismatch somewhere. You _may_ be able to work around this by adding the "dom0_mem=...M" option to the xen hypervisor line ("kernel=xen...") in /etc/grub.conf. If you assign (say) only half your physical memory to dom0 on boot, does that work?
Comment 10 Stephen Tweedie 2006-01-18 13:26:25 EST
*** Bug 170163 has been marked as a duplicate of this bug. ***
Comment 11 Stephen Tweedie 2006-02-24 15:12:33 EST
The FC5test* / rawhide kernels should fix this bug; please reopen if it recurs.