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From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 42779] New: KVM domain hangs after loading initrd with Xenomai kernel
Date: Thu, 16 Feb 2012 05:45:29 GMT	[thread overview]
Message-ID: <bug-42779-28872@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=42779

           Summary: KVM domain hangs after loading initrd with Xenomai
                    kernel
           Product: Virtualization
           Version: unspecified
    Kernel Version: 3.0.0-15
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
        AssignedTo: virtualization_kvm@kernel-bugs.osdl.org
        ReportedBy: madengineer10@gmail.com
        Regression: No


Attempting to boot a 32 bit Debian guest with a Xenomai kernel inside KVM
causes it to hang and spin (using 1 full CPU core) after loading the initrd, as
determined by serial console output. The only error message is "KVM internal
error. Suberror: 1"/"emulation failure". Booting a regular Debian kernel
succeeds, as does running the Xenomai kernel with software emulation (-no-kvm).

Info:
CPU: Intel Core i7-2670QM
Emulator: qemu-kvm 0.14.1
Host kernel: 3.0.0-15 (Ubuntu build), x86_64
Guest OS: Debian Squeeze, kernel.org 2.6.37 kernel with Xenomai 2.6.0 (config
attached)
Qemu command: kvm -M pc-0.14 -enable-kvm -m 1024 -drive
file=/var/lib/libvirt/images/eve.img,if=none,id=drive-ide0-0-0,format=raw
-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -netdev
tap,fd=21,id=hostnet0 -device
e1000,netdev=hostnet0,id=net0,mac=52:54:00:b5:f4:00,bus=pci.0,addr=0x3 -chardev
stdio,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb
-device usb-tablet,id=input0 -vga cirrus
Effects of flags: Adding one or both of --no-kvm-irqchip or --no-kvm-pit has no
apparent effect. Adding --no-kvm appears to correct the problem, at the cost of
performance due to using the software emulator.

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             reply	other threads:[~2012-02-16  5:45 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-16  5:45 bugzilla-daemon [this message]
2012-02-16  5:46 ` [Bug 42779] KVM domain hangs after loading initrd with Xenomai kernel bugzilla-daemon
2012-02-16  5:47 ` bugzilla-daemon
2012-02-16  5:47 ` bugzilla-daemon
2012-02-16  5:48 ` bugzilla-daemon
2012-02-16  5:57 ` bugzilla-daemon
2012-02-16  6:32 ` bugzilla-daemon
2012-02-16  7:15 ` bugzilla-daemon
2012-02-16  7:22 ` bugzilla-daemon
2012-02-16  7:43 ` bugzilla-daemon
2012-02-16  7:56 ` bugzilla-daemon
2012-02-16  7:57 ` bugzilla-daemon
2012-02-16  8:04 ` bugzilla-daemon
2012-02-16  8:31 ` bugzilla-daemon
2012-02-16  8:40 ` bugzilla-daemon
2012-02-16 11:40 ` bugzilla-daemon
2012-02-16 11:51 ` bugzilla-daemon
2012-02-16 16:48 ` bugzilla-daemon
2012-02-16 16:51 ` bugzilla-daemon
2012-02-16 17:24 ` bugzilla-daemon
2012-02-16 17:30 ` bugzilla-daemon
2012-02-16 22:01 ` bugzilla-daemon
2012-03-21 18:21 ` bugzilla-daemon
2012-03-31 20:10 ` bugzilla-daemon
2012-04-01 14:15 ` bugzilla-daemon
2012-04-01 23:38 ` bugzilla-daemon
2012-04-01 23:39 ` bugzilla-daemon
2012-04-01 23:40 ` bugzilla-daemon
2012-04-02  9:12 ` bugzilla-daemon
2012-07-01  9:42 ` bugzilla-daemon
2012-08-15 21:57 ` bugzilla-daemon

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