On a system upgraded from FC5 to FC6, I find that the whole system hangs at X startup if I boot with the Xen kernel. Even Alt-SysRq has no effect. X starts without any problems on a non-Xen kernel. It''s a Dell OptiPlex GX270. lspci output: 00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02) 00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated Graphics Controller (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2) 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02) 00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC''97 Audio Controller (rev 02) 01:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02) I see a few other people have vaguely similar problems. Any ideas? Adam
Daniel P. Berrange
2006-Nov-15 18:26 UTC
Re: [Fedora-xen] X startup failure with Xen kernel
On Wed, Nov 15, 2006 at 05:31:28PM +0000, bloch@verdurin.com wrote:> On a system upgraded from FC5 to FC6, I find that the whole system hangs > at X startup if I boot with the Xen kernel. Even Alt-SysRq has no > effect. > > X starts without any problems on a non-Xen kernel. > > It''s a Dell OptiPlex GX270. > > lspci output: > > 00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated > Graphics Controller (rev 02)There''s an issue with encountered with Xen and a number of Intel graphics cards when testing for RHEL-5. The core problem is that the real-mode emulation in Xen is broken, so its not handling the switches between 16&32bit mode correctly. We tried to fix Xen but the VMX assist code is just tooo hairly to resolve correctly - a fix for one graphics card would break a different one. So instead, our Xorg wizards have patched the X server to use its own built in realmode emulation instead of relying on Xen. The updated ''xorg-x11-server'' RPMs are being prepared for a Fedora Core 6 update in the very near future, so keep an eye on the updates-testing YUM repository for the fix.... Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|
Exactly the same problem on my Dell GX620. I''ve got major problems with Xen and have had them throughout the entire testing cycle of FC6. The two bugs I have opened and am working on are : https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=215464 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=207432 What X driver are you using? $ /sbin/lspci 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02) 00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port (rev 02) 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) 00:02.1 Display controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01) 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01) 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01) 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01) 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01) 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) 00:1e.2 Multimedia audio controller: Intel Corporation 82801G (ICH7 Family) AC''97 Audio Controller (rev 01) 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01) 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01) 00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller IDE (rev 01) 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01) 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express (rev 01) On Wed, 2006-11-15 at 17:31 +0000, bloch@verdurin.com wrote:> On a system upgraded from FC5 to FC6, I find that the whole system hangs > at X startup if I boot with the Xen kernel. Even Alt-SysRq has no > effect. > > X starts without any problems on a non-Xen kernel. > > It''s a Dell OptiPlex GX270. > > lspci output: > > 00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM > Controller/Host-Hub Interface (rev 02) > 00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated > Graphics Controller (rev 02) > 00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB > UHCI Controller #1 (rev 02) > 00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB > UHCI Controller #2 (rev 02) > 00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB > UHCI Controller #3 (rev 02) > 00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB > UHCI Controller #4 (rev 02) > 00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 > EHCI Controller (rev 02) > 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2) > 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC > Interface Bridge (rev 02) > 00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE > Controller (rev 02) > 00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller > (rev 02) > 00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus > Controller (rev 02) > 00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER > (ICH5/ICH5R) AC''97 Audio Controller (rev 02) > 01:0c.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet > Controller (rev 02) > > I see a few other people have vaguely similar problems. Any ideas? > > > Adam > > -- > Fedora-xen mailing list > Fedora-xen@redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen