2007/10/26, Avi Kivity <[EMAIL PROTECTED]>: > Gildas wrote: > > 2007/10/25, Avi Kivity <[EMAIL PROTECTED]>: > > > >> This is a request for testing of an experimental kvm feature that > >> dramatically accelerates some Windows releases (when running with the > >> ACPI HAL, and especially with guest SMP). The feature detects accesses > >> by the guest to the Task Priority Register (TPR) and patches them at > >> runtime to a kvm-friendly code snipped that is provided by the BIOS. > >> > >> The upshot of all that is that > >> http://kvm.qumranet.com/kvmwiki/Windows_ACPI_Workaround is no longer > >> required, and Windows SMP no longer runs like a dog; it's quite snappy > >> from my very limited testing. > >> > >> Please download the test release from > >> http://people.qumranet.com/avi/tpr-opt-1.tar.gz and give it a spin. > >> Once it has received some exposure, I'll merge it into mainline. > >> > >> Credit for the original idea is due to Ben Serebrin. > >> > >> -- > >> error compiling committee.c: too many arguments to function > >> > > > > Hi Avi, > > > > On an intel machine running 64 bits ubuntu with kernel 2.6.20, using > > the archive downloaded this morning at 10 o'clock GMT with the > > following md5sum: > > > > > > Right, installs seem not to like this release, but running an existing > VM seems to work fine (mostly).
A windows 2000 sp4 installation crashes as well (this time with WORKER_THREAD_RETURNED_A_BAD_IRQL). This was reproduceable. I've restarted the installation with -no-kvm-irq and it seems to work fine so long (it didn't crash where it crashed previously). I've restarted windows xp install and this time I had the following: [86852.991254] ------------[ cut here ]------------ [86852.991260] kernel BUG at /home/gl03/sources/tpr-opt-1/kernel/mmu.c:308! [86852.991262] invalid opcode: 0000 [1] SMP [86852.991265] CPU 1 [86852.991267] Modules linked in: kvm_intel kvm binfmt_misc rfcomm l2cap bluetooth ppdev i915 drm acpi_cpufreq cpufreq_ondemand cpufreq_powersave cpufreq_stats freq_table cpufreq_userspace cpufreq_conservative dev_acpi sony_acpi tc1100_wmi pcc_acpi sbs i2c_ec i2c_core battery ac video asus_acpi button backlight dock container ipv6 nls_utf8 ntfs sbp2 lp fuse joydev pcmcia snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi yenta_socket rsrc_nonstatic pcmcia_core iTCO_wdt iTCO_vendor_support af_packet snd_seq_midi_event snd_seq ipw3945 tifm_7xx1 parport_pc parport sdhci snd_timer snd_seq_device pcspkr tpm_infineon tpm tpm_bios serio_raw ieee80211 ieee80211_crypt mmc_core intel_agp psmouse tifm_core snd soundcore snd_page_alloc shpchp pci_hotplug tsdev evdev sr_mod cdrom generic ext3 jbd mbcache sg sd_mod ohci1394 ieee1394 ata_piix tg3 ahci ehci_hcd uhci_hcd usbcore ata_generic libata scsi_mod thermal processor fan dm_mod fbcon tileblit font bitblit softcursor vesafb cfbcopyarea cfbimgblt cfbfillrect capability commoncap [86852.991337] Pid: 12492, comm: qemu-system-x86 Not tainted 2.6.20-16-generic #2 [86852.991340] RIP: 0010:[<ffffffff883aa877>] [<ffffffff883aa877>] :kvm:mmu_memory_cache_alloc+0x7/0x30 [86852.991354] RSP: 0018:ffff810024b039c8 EFLAGS: 00010246 [86852.991356] RAX: 0000000000000000 RBX: ffffc2000082a868 RCX: ffff810033c54080 [86852.991359] RDX: ffff810033c54088 RSI: 0000000000000028 RDI: ffff810025232820 [86852.991361] RBP: ffff810034771750 R08: 0000000000000000 R09: 0000000000000004 [86852.991363] R10: 00000000145cd963 R11: 0000000000000000 R12: ffff810025232440 [86852.991366] R13: 0000000000000000 R14: ffff810034771750 R15: ffff810025232440 [86852.991369] FS: 00002acc64f8a5b0(0000) GS:ffff81007dbd8ec0(0000) knlGS:0000000000000000 [86852.991372] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [86852.991374] CR2: 0000000001001ad8 CR3: 0000000008b86000 CR4: 00000000000026e0 [86852.991377] Process qemu-system-x86 (pid: 12492, threadinfo ffff810024b02000, task ffff8100713c9820) [86852.991379] Stack: ffffc2000082a868 ffffffff883aa95c 000000002a6c6043 0000000000000002 [86852.991384] 000000002a6c6000 ffffffff883ab2ab 0000000000000001 00000000000145cd [86852.991388] 0000000000000000 0000000000000000 00000000145cd000 00000000145cd000 [86852.991391] Call Trace: [86852.991402] [<ffffffff883aa95c>] :kvm:rmap_add+0xac/0x130 [86852.991414] [<ffffffff883ab2ab>] :kvm:paging32_set_pte_common+0x1fb/0x270 [86852.991434] [<ffffffff883ab369>] :kvm:paging32_set_pte+0x49/0x50 [86852.991448] [<ffffffff883ab8b3>] :kvm:kvm_mmu_pte_write+0x273/0x380 [86852.991472] [<ffffffff883a5685>] :kvm:emulator_write_emulated_onepage+0x85/0x100 [86852.991485] [<ffffffff883b022a>] :kvm:x86_emulate_insn+0x2b9a/0x4200 [86852.991497] [<ffffffff883c24f7>] :kvm_intel:vmcs_readl+0x17/0x20 [86852.991512] [<ffffffff883a5c74>] :kvm:emulate_instruction+0x174/0x2d0 [86852.991524] [<ffffffff883c501f>] :kvm_intel:handle_exception+0x18f/0x290 [86852.991532] [<ffffffff883b2739>] :kvm:apic_update_ppr+0x29/0x60 [86852.991546] [<ffffffff883a6fb1>] :kvm:kvm_vcpu_ioctl+0x411/0x1120 [86852.991553] [<ffffffff8028b6e8>] __activate_task+0x38/0x60 [86852.991560] [<ffffffff80248dac>] try_to_wake_up+0x3dc/0x400 [86852.991577] [<ffffffff8028b454>] __wake_up_common+0x44/0x80 [86852.991587] [<ffffffff8022f7a3>] __wake_up+0x43/0x70 [86852.991598] [<ffffffff802dd1e9>] core_sys_select+0x289/0x2e0 [86852.991620] [<ffffffff8029a058>] __dequeue_signal+0x168/0x1e0 [86852.991629] [<ffffffff80270a74>] do_gettimeofday+0x44/0x90 [86852.991637] [<ffffffff8025de20>] getnstimeofday+0x10/0x30 [86852.991648] [<ffffffff8024362f>] do_ioctl+0x2f/0xa0 [86852.991654] [<ffffffff80231592>] vfs_ioctl+0x2a2/0x2e0 [86852.991664] [<ffffffff8024e7dc>] sys_ioctl+0x6c/0xb0 [86852.991673] [<ffffffff8026111e>] system_call+0x7e/0x83 [86852.991688] [86852.991690] [86852.991690] Code: 0f 0b 0f 1f 80 00 00 00 00 eb fe 83 e8 01 48 89 f2 31 f6 89 [86852.991700] RIP [<ffffffff883aa877>] :kvm:mmu_memory_cache_alloc+0x7/0x30 [86852.991709] RSP <ffff810024b039c8> [86852.991711] <6>kvm: guest NX capability removed [86883.412300] kvm: guest NX capability removed process is in defunct/zombi mode now and can't be killed. Regards, Gildas ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
