Roger Pau Monné wrote: > Hello, > > El 04/05/15 a les 16.16, Roman Bogorodskiy ha escrit: > > Roger Pau Monné wrote: > > > >> Hello, > >> > >> El 02/05/15 a les 17.43, Roman Bogorodskiy ha escrit: > >>> Hi, > >>> > >>> I'm trying to get Xen running and following these instructions: > >>> > >>> https://wiki.freebsd.org/Xen > >>> > >>> and > >>> > >>> http://wiki.xen.org/wiki/FreeBSD_Dom0 > >>> > >>> I'm running two days old -CURRENT and ports. I've installed the > >>> emulators/xen port and followed instructions in pkg-message. > >>> > >>> I'm having some problems with console. I'm wondering if it's possible to > >>> have X running on the same box running xen kernel? > >> > >> It should be, although I had issues while using the vesa driver with a > >> FreeBSD Xen Dom0, mainly because Dom0 doesn't have access to the BDA and > >> EBDA, I'm working on fixing this in Xen upstream. > >> > >>> My setup is as follows: > >>> > >>> - Intel i5-4690 that supports IOMMU: > >>> $ sudo acpidump -t|grep DMAR > >>> DMAR: Length=128, Revision=1, Checksum=90, > >>> $ > >>> - vm.max_wired=-1 in /etc/sysctl.conf > >>> - xc0 "/usr/libexec/getty Pc" xterm on secure in > >>> /etc/ttys > >>> > >>> In loader.conf I have: > >>> > >>> xen_kernel="/boot/xen" > >>> xen_cmdline="dom0_mem=2048M dom0_max_vcpus=4 dom0pvh=1 com1=115200,8n1 > >>> guest_loglvl=all loglvl=all console=com1" > >> > >> So you are trying to use the serial console but you are not getting any > >> output? If that's not the case, please drop the com1 parameter and set > >> console=vga. > > > > Sorry for confusion, actually 'console=com1' works for me. > > Initially I didn't realize that it doesn't display kernel messages and > > after some failed attempts to run startx and hard reboots it took much > > longer to see a login prompt because I have background fsck disabled. > > > > So, 'console=com1' works unless I do 'startx'. > > I'm not sure I would call it working if you don't get any kernel > messages while booting. What happens if you set console=vga? > > > > >> Do you have anything else in your /boot/loader.conf apart from this two > >> lines? > >> > >>> > >>> With this setup I get my system booted and at some point I can see a > >>> login screen. When I type 'startx' the system freezes. Have to hard > >>> reboot it to get working again. > >> > >> On which device do you get a login prompt? Is it xc0, ttyv0 or ttyu0? > > > > I get a login prompt on ttyv0. > > > > BTW, I use the nvidia driver. > > Another user also reported a similar problem with Xen and X, and it was > solved by the following patch: > > https://people.freebsd.org/~royger/0001-xen-introduce-a-newbus-function-to-allocate-unused-m.patch > > Could you apply it and rebuild your kernel to see if that also solves > your issues?
Applied this patch on r282416, things didn't change: I do 'startx' in ttyv0, X prints that it loads extensions, then a black screen with a cursor appears and things hang. Roman Bogorodskiy
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