[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Using xen-unstable, dom0 hangs during boot
> -----Original Message----- > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx] > Sent: Friday, February 26, 2010 7:46 AM > To: Nadolski, Ed > Cc: Jeremy Fitzhardinge; Xen-devel@xxxxxxxxxxxxxxxxxxx > Subject: Re: [Xen-devel] Using xen-unstable, dom0 hangs during boot > > On Fri, Feb 26, 2010 at 06:33:27AM -0700, Nadolski, Ed wrote: > > > -----Original Message----- > > > From: Jeremy Fitzhardinge [mailto:jeremy@xxxxxxxx] > > > Sent: Thursday, February 25, 2010 4:12 PM > > > To: Nadolski, Ed > > > Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx > > > Subject: Re: [Xen-devel] Using xen-unstable, dom0 hangs during boot > > > > > > On 02/25/2010 02:18 PM, Nadolski, Ed wrote: > > > > I'm running Fedora 12 (kernel 2.6.31.5-127.fc12.x86_64) on a Dell > > > T7500 Xeon with VT-x and VT-d. After building xen-unstable and > > > rebooting, the dom0 Linux hangs a few seconds after it gets control > > > from Xen, and I have to power-cycle to recover. Here are the last > > > messages before it hangs: > > > > > > > > [ 2.766882] loop: module loaded > > > > [ 2.767736] input: Macintosh mouse button emulation as > > > /devices/virtual/input/input2 > > > > [ 2.769396] xen_set_ioapic_routing: irq 20 gsi 20 vector 20 > ioapic > > > 0 pin 20 triggering 1 polarity 1 > > > > [ 2.770342] achi 0000:00:1f.2: PCI INT C -> GSI 20 (level, > low) - > > > > IRQ 20 > > > > [ 2.771158] ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports > 3 > > > Gbps 0x27 impl SATA mode > > > > [ 2.772078] ahci 0000:00:1f.2: flags: 64bit ncq sntf led clo > pio > > > ems > > > > <<hangs at this point>> > > > > > > > > Thoughts? Any grub parameters I should try for Linux and/or Xen? > > > Any further info I can provide? > > > > > > > > > > What kernel is this? What's the boot command line? > > > > The build downloaded the kernel from: > > > > + git clone > git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6- > pvops.git.tmp > > > > The serial console output stops before the Linux kernel messages show > up, but here is what I have in grub.conf: > > > > title Fedora12-Xen (2.6.31.6) Xen and dom0 serial console > > root (hd0,0) > > kernel /xen-4.0.0-rc4.gz com1=115200,8n1 console=com1 > > module /vmlinuz-2.6.31.6 ro root=UUID=d9c5bf5d-23d1-445e- > 9210-e6ad0798a0ba nomodeset LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 > KEYBOARDTYPE=pc KEYTABLE=us console=tty0 console=ttyS0,115200 > > module /initramfs-2.6.31.6.img > > > > but it still fails the same way regardless of the vmlinuz parameters. > With the serial port enabled, the hang happens a bit sooner, at the > serial driver init. Also, no change if I disable VTx/VTd in the BIOS. > > > > You should use grub configuration like this: > > title pv_ops dom0 with a serial console > root (hd0,0) > kernel /xen-4.0.0-rc4.gz dom0_mem=1024M loglvl=all > guest_loglvl=all sync_console console_to_ring com1=115200,8n1 > console=com1 > module /vmlinuz-2.6.31.6 ro root=/dev/vg00/lv01 console=hvc0 > earlyprintk=xen nomodeset > module /initrd-2.6.31.6.img > > Modify the root parameter etc for your environment. > > Note that vmlinuz (dom0 kernel) needs to have "console=hvc0 > earlyprintk=xen" > to log to a serial console through Xen. > > -- Pasi Thanks Pasi. I've attached the full trace, and a few select lines are below. Any further thoughts? I'm not familiar with the interrupt mapping code, but I'll see if there are some parameters I can change. Ed (XEN) Xen version 4.0.0-rc4 (root@) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) Thu Feb 25 22:09:19 MST 2010 (XEN) Latest ChangeSet: Thu Feb 25 21:03:26 2010 +0000 20983:94535cc63835 (XEN) Console output is synchronous. (XEN) Command line: loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1 console=com1 ... Xen: setup ISA identity maps about to get started... [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.31.6 (root@truckee) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) #1 SMP Thu Feb 25 22:00:24 MST 2010 [ 0.000000] Command line: ro root=UUID=d9c5bf5d-23d1-445e-9210-e6ad0798a0ba nomodeset LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen ... (XEN) CPU 3 initialization completed [ 5.888385] Event-channel device installed. [ 5.896414] blktap_device_init: blktap device major 253 [ 5.901550] blktap_ring_init: blktap ring major: 251 [ 5.907640] registering netback [ 5.918012] hpet_acpi_add: no address or irqs in _CRS [ 5.923249] Non-volatile memory driver v1.3 [ 5.927418] Linux agpgart interface v0.103 [ 5.931762] [drm] Initialized drm 1.1.0 20060810 [ 5.936338] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled (XEN) irq.c:1182:d0 Cannot bind IRQ 0 to guest. Will not share with others. << output stops here >> Attachment:
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