Re: [Qemu-devel] VM Memory limit with kernel-kqemu?
Andrew Barr wrote: I'm running a Windows 2000 SP4 guest on a Linux 2.6.16 host with Qemu CVS and kqemu 1.3.0pre3. I am trying to use -kernel-kqemu. I have been allocating 256 MB of RAM to my guest (out of 768 MB total) and I have found that using that amount of memory with -kernel-kqemu causes Windows 2000 to freeze at the graphical boot up screen (after 'Starting Windows...') and qemu to take up 95-100% CPU. Reducing the amount of guest RAM to 160 MB makes that problem go away. I also tried 192 MB and that did not work. Is there a limit to the amount of memory that may be used with the -kernel-kqemu option? Ok I've just reproduced this with the 256M problem doing some more homework. Brad -- Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. -- Douglas Adams ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] VM Memory limit with kernel-kqemu?
Andrew Barr wrote: I'm running a Windows 2000 SP4 guest on a Linux 2.6.16 host with Qemu CVS and kqemu 1.3.0pre3. I am trying to use -kernel-kqemu. I have been allocating 256 MB of RAM to my guest (out of 768 MB total) and I have found that using that amount of memory with -kernel-kqemu causes Windows 2000 to freeze at the graphical boot up screen (after 'Starting Windows...') and qemu to take up 95-100% CPU. Reducing the amount of guest RAM to 160 MB makes that problem go away. I also tried 192 MB and that did not work. Is there a limit to the amount of memory that may be used with the -kernel-kqemu option? I've used it with 512M with no problems.. how big is your tmpfs on the host? I found a while ago (prior to -kernel-kqemu) nasty things happened if you tried to allocate more memory than you had space available in /tmp I have mine configured for 1.5GB (I have 3GB of ram) and I can run 3 concurrent sessions, 2 with 512MB and 1 with 256MB and no problems. (All win2k sp4 guests) FilesystemSize Used Avail Use% Mounted on 192.168.2.82:/nfsroot 165G 68G 89G 44% / tmpfs 1.5G 4.0K 1.5G 1% /dev/shm none 1.5G 1.2M 1.5G 1% /tmp tmpfs 10M 2.7M 7.4M 27% /dev Regards, Brad -- Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. -- Douglas Adams ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] VM Memory limit with kernel-kqemu?
On Sun, 26 Mar 2006 14:48:11 -0500 Andrew Barr [EMAIL PROTECTED] wrote: I'm running a Windows 2000 SP4 guest on a Linux 2.6.16 host with Qemu CVS and kqemu 1.3.0pre3. I am trying to use -kernel-kqemu. I have been allocating 256 MB of RAM to my guest (out of 768 MB total) and I have found that using that amount of memory with -kernel-kqemu causes Windows 2000 to freeze at the graphical boot up screen (after 'Starting Windows...') and qemu to take up 95-100% CPU. Reducing the amount of guest RAM to 160 MB makes that problem go away. I also tried 192 MB and that did not work. Is there a limit to the amount of memory that may be used with the -kernel-kqemu option? I found the same when I tried 256M - it works with 384M (with which qemu uses about half of my 1GB) so I didn't look into it further. -- Kevin F. Quinn signature.asc Description: PGP signature ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
Re: [Qemu-devel] VM Memory limit with kernel-kqemu?
--RESEND-- Can someone let me know if this comes through twice? I'm having huge problems getting through to the list it would appear. Andrew Barr wrote: I'm running a Windows 2000 SP4 guest on a Linux 2.6.16 host with Qemu CVS and kqemu 1.3.0pre3. I am trying to use -kernel-kqemu. I have been allocating 256 MB of RAM to my guest (out of 768 MB total) and I have found that using that amount of memory with -kernel-kqemu causes Windows 2000 to freeze at the graphical boot up screen (after 'Starting Windows...') and qemu to take up 95-100% CPU. Reducing the amount of guest RAM to 160 MB makes that problem go away. I also tried 192 MB and that did not work. Is there a limit to the amount of memory that may be used with the -kernel-kqemu option? I've used it with 512M with no problems.. how big is your tmpfs on the host? I found a while ago (prior to -kernel-kqemu) nasty things happened if you tried to allocate more memory than you had space available in /tmp I have mine configured for 1.5GB (I have 3GB of ram) and I can run 3 concurrent sessions, 2 with 512MB and 1 with 256MB and no problems. (All win2k sp4 guests) FilesystemSize Used Avail Use% Mounted on 192.168.2.82:/nfsroot 165G 68G 89G 44% / tmpfs 1.5G 4.0K 1.5G 1% /dev/shm none 1.5G 1.2M 1.5G 1% /tmp tmpfs 10M 2.7M 7.4M 27% /dev Regards, Brad -- Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. -- Douglas Adams ___ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
