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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] blktap2 problem with pvops kernel 2.6.32.13 and xen 4.0-rc1
On Sat, May 29, 2010 at 07:45:41AM -0700, Boris Derzhavets wrote: > I've attempted to install Nexenta Core 3 image under Xen 4.0 (2.6.32.13 > pvops) on top of F13. Sample nexenta3.cfg profile > contains 4 lines like this:- > > disk=['tat:tapdisk:vhd:/path/../disk.img,xvda,w'] ( from sample) > Should be 'tap', not 'tat'.. -- Pasi > It generates message > File 'vhd:/path/.../disk.img' doesn't exist. > > Boris. > P.S. It was already in one of the threads @xen-users. > > --- On Sat, 5/29/10, Fantu <fantonifabio@xxxxxxxxxx> wrote: > > From: Fantu <fantonifabio@xxxxxxxxxx> > Subject: Re: [Xen-devel] blktap2 problem with pvops kernel 2.6.32.13 and > xen 4.0-rc1 > To: xen-devel@xxxxxxxxxxxxxxxxxxx > Date: Saturday, May 29, 2010, 10:33 AM > > Sorry, i wrong to write, is 4.0.1-rc1, i have always take from > xen-4.0-testing.hg last weeks about xen 4 > Yesterday i have try tap2:aio in cfg files and work, is blktap how not work > with lenny, pv_ops kernel and xen 3.4.3 or 4.0 > With tap2:aio minor ram used by dom0 but i see minor performance on domU > (mainly on start) > All important fix do in unstable are merged with xen-4.0-testing.hg? > > Pasi Kärkkäinen wrote: > > > > On Fri, May 28, 2010 at 04:27:33AM -0700, Fantu wrote: > >> > >> thanks for reply > >> > >> About blktap i not uderstand, always this error: > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:790: > >> blktapctrl: > >> v1.0.0 > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [raw image (aio)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [raw image (sync)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [vmware image (vmdk)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [ramdisk image (ram)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [qcow disk (qcow)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:792: Found > >> driver: > >> [qcow2 disk (qcow2)] > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl_linux.c:92: > >> couldn't > >> find device number for 'blktap0' > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:859: couldn't > >> open > >> blktap interface > >> May 28 12:05:56 cpmcOR01AV BLKTAPCTRL[2775]: blktapctrl.c:922: Unable to > >> start blktapctrl > >> > >> But module there is in kernel and is load (see lsmod) i have try also xen > >> 3.4.3, kernel 2.6.31 and 2.6.32 with some different config, always with > >> blktap option, also with =y and also try with sysfs deprecated option but > >> always nothing > >> > > > > Hmm.. are you really running Xen 4.0.0-rc1 ? If yes, then you should > > definitely > > upgrade to Xen 4.0.0 final, or even better, to Xen 4.0.1-rc1. > > > > There was some dom0 memory corruption bug fixed around Xen 4.0.0-rc6. > > > > About your blktap2 problems.. dunno really. I'll try it myself some day > > and > > let's see how it goes. > > > > -- Pasi > > > >> I found also 1 problem on save of 1 domU and some of this line in log: > >> May 28 12:55:35 cpmcOR01AV kernel: [ 3000.882349] hrtimer: interrupt took > >> 4279522 ns > >> > >> Here the syslog and kern.log if can help: > >> [1]http://old.nabble.com/file/p28705622/kern.log kern.log > >> [2]http://old.nabble.com/file/p28705622/syslog syslog > >> And xend.log when stop some minute for problem on one domU save: > >> [3]http://old.nabble.com/file/p28705622/xend.log xend.log > >> > >> > >> Pasi Kärkkäinen wrote: > >> > > >> > On Fri, May 28, 2010 at 02:45:04AM -0700, Fantu wrote: > >> >> > >> >> Server is Dell T610 with last bios (2.0.13) > >> >> Dom0: Lenny 64 bit, kernel 2.6.32.13, xen 4.0-rc1 > >> >> Kernel is last commit of jeremy git xen/stable-2.6.32.x with this > >> config: > >> >> [4]http://old.nabble.com/file/p28704783/config-2.6.32.13 > config-2.6.32.13 > >> >> lspci -vvv: [5]http://old.nabble.com/file/p28704783/lspcivvv.log > >> >> lspcivvv.log > >> >> dmidecode: [6]http://old.nabble.com/file/p28704783/dmidecode.log > >> >> dmidecode.log > >> >> dmesg: [7]http://old.nabble.com/file/p28704783/dmesg dmesg > >> >> lsmod: [8]http://old.nabble.com/file/p28704783/lsmod.log lsmod.log > >> >> xend log: [9]http://old.nabble.com/file/p28704783/xend.log xend.log > >> >> menu.lst: > >> >> title Xen 4 / Debian GNU/Linux, kernel 2.6.32.13 > >> >> root (hd0,0) > >> >> kernel /boot/xen.gz dom0_mem=2560M > >> >> module /boot/vmlinuz-2.6.32.13 root=LABEL=root-backup2 ro > >> >> nomodeset > >> >> module /boot/initrd.img-2.6.32.13 > >> >> > >> >> The server run 12 domU windows xp with gplpv 0.11.0.213, all work > >> >> On dom0 blktap not work (write about in other topic) and i must chage > >> >> domU > >> >> disk from tap:aio to file, is one or the problem about performance? > >> >> With not set of dom0 memory and dom0 balloning have "freeze" with last > >> >> msg > >> >> calltrace about out of memory, i set dom0 memory in menu.lst and > >> disable > >> >> dom0 balloning, is necessary more ram that 2.5gb for dom0? > >> >> > >> > > >> > You really don't need 2,5 GB for dom0. > >> > Start with 1024 MB. You might be able to go down to 512 MB or so. > >> > > >> > It really depends what kind of tools you run in dom0. > >> > > >> > Also remember that file: driver for guest disks uses dom0 page cache, > >> > so it may appear that a lot of dom0 memory is used when using file: > >> driver > >> > since dom0 page cache will use *all* the free memory.. so increasing > >> > dom0 memory just makes you use more of the memory as cache. > >> > > >> > You really should get tap:aio: working instead. But I guess you open > >> > another > >> > thread about it. > >> > > >> >> There are some option in .config of kernel wrong or not good? > >> >> with c state option in bios enable system is inusable, now i disable > >> it > >> >> but > >> >> this is kernel, xen or bios problem? > >> >> > >> >> I hope this information helps improve the kernel and xen, tell me if > >> need > >> >> another information > >> >> > >> >> Thanks for any reply about my questions > >> >> > >> > > >> > -- Pasi > >> > > >> > > >> > _______________________________________________ > >> > Xen-devel mailing list > >> > [10]Xen-devel@xxxxxxxxxxxxxxxxxxx > >> > [11]http://lists.xensource.com/xen-devel > >> > > >> > > >> > >> -- > >> View this message in context: > >> > > [12]http://old.nabble.com/Low-performance-and-some-problem-with-kernel-2.6.32.13-and-xen-4.0-rc1-tp28704783p28705622.html > >> Sent from the Xen - Dev mailing list archive at Nabble.com. > >> > >> > >> _______________________________________________ > >> Xen-devel mailing list > >> [13]Xen-devel@xxxxxxxxxxxxxxxxxxx > >> [14]http://lists.xensource.com/xen-devel > > > > _______________________________________________ > > Xen-devel mailing list > > [15]Xen-devel@xxxxxxxxxxxxxxxxxxx > > [16]http://lists.xensource.com/xen-devel > > > > > > -- > View this message in context: > > [17]http://old.nabble.com/Low-performance-and-some-problem-with-kernel-2.6.32.13-and-xen-4.0-rc1-tp28704783p28716348.html > Sent from the Xen - Dev mailing list archive at Nabble.com. > > _______________________________________________ > Xen-devel mailing list > [18]Xen-devel@xxxxxxxxxxxxxxxxxxx > [19]http://lists.xensource.com/xen-devel > > References > > Visible links > 1. http://old.nabble.com/file/p28705622/kern.log > 2. http://old.nabble.com/file/p28705622/syslog > 3. http://old.nabble.com/file/p28705622/xend.log > 4. http://old.nabble.com/file/p28704783/config-2.6.32.13 > 5. http://old.nabble.com/file/p28704783/lspcivvv.log > 6. http://old.nabble.com/file/p28704783/dmidecode.log > 7. http://old.nabble.com/file/p28704783/dmesg > 8. http://old.nabble.com/file/p28704783/lsmod.log > 9. http://old.nabble.com/file/p28704783/xend.log > 10. file:///mc/compose?to=Xen-devel@xxxxxxxxxxxxxxxxxxx > 11. http://lists.xensource.com/xen-devel > 12. > http://old.nabble.com/Low-performance-and-some-problem-with-kernel-2.6.32.13-and-xen-4.0-rc1-tp28704783p28705622.html > 13. file:///mc/compose?to=Xen-devel@xxxxxxxxxxxxxxxxxxx > 14. http://lists.xensource.com/xen-devel > 15. file:///mc/compose?to=Xen-devel@xxxxxxxxxxxxxxxxxxx > 16. http://lists.xensource.com/xen-devel > 17. > http://old.nabble.com/Low-performance-and-some-problem-with-kernel-2.6.32.13-and-xen-4.0-rc1-tp28704783p28716348.html > 18. file:///mc/compose?to=Xen-devel@xxxxxxxxxxxxxxxxxxx > 19. http://lists.xensource.com/xen-devel > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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