From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Emde Subject: Re: [patch 0/3] Patches for KVM & RT Date: Thu, 09 Apr 2009 23:44:44 +0200 Message-ID: <49DE6C4C.3070308@osadl.org> References: <20090407235853.309888494@suse.de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------030303040602040100080507" Cc: rt-users , kvm@vger.kernel.org, Marcelo Tosatti To: Jan Blunck Return-path: In-Reply-To: <20090407235853.309888494@suse.de> Sender: linux-rt-users-owner@vger.kernel.org List-Id: kvm.vger.kernel.org This is a multi-part message in MIME format. --------------030303040602040100080507 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Jan, > Here are some patches that are necessary to get KVM running with the -rt4 > patchset. Thanks a lot. Unfortunaately, there is still a last one at kernel/smp.c:288 /* Can deadlock when called with interrupts disabled */ WARN_ON_ONCE(irqs_disabled() && !oops_in_progress); Do we get another fix? Carsten. --------------030303040602040100080507 Content-Type: text/plain; name="warn-kvm-2.6.29.1-rt5" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline; filename="warn-kvm-2.6.29.1-rt5" Apr 9 22:57:55 deliv1 kernel: ------------[ cut here ]------------ Apr 9 22:57:55 deliv1 kernel: WARNING: at kernel/smp.c:289 smp_call_func= tion_single+0x5a/0x11c() Apr 9 22:57:55 deliv1 kernel: Hardware name: SD37V10 Apr 9 22:57:55 deliv1 kernel: Modules linked in: tun fuse radeon drm nfs= d lockd nfs_acl auth_rpcgss exportfs sco bridge stp bnep l2cap bluetooth = coretemp it87 hwmon_vid hwmon sunrpc zd1211rw mac80211 cfg80211 ipt_MASQU= ERADE iptable_nat nf_nat ipt_REJECT ipt_LOG nf_conntrack_ipv4 nf_defrag_i= pv4 iptable_filter ip_tables nf_conntrack_netbios_ns ip6t_REJECT xt_tcpud= p nf_conntrack_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables x_ta= bles ipv6 cpufreq_ondemand acpi_cpufreq dm_mirror dm_region_hash dm_log d= m_multipath scsi_dh dm_mod kvm_intel kvm uinput snd_hda_codec_realtek snd= _hda_intel snd_hda_codec snd_usb_audio snd_usb_lib snd_rawmidi snd_hwdep = snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_p= cm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore iTCO_wdt i2c_i801 tg= 3 i82975x_edac ohci1394 snd_page_alloc iTCO_vendor_support i2c_core libph= y edac_core ieee1394 auerswald sr_mod sg button cdrom pcspkr ata_generic = pata_acpi ata_piix libata sd_mod scsi_mod raid456 async_xor async_memcpy = async Apr 9 22:57:55 deliv1 kernel: _tx xor raid1 ext3 jbd mbcache uhci_hcd oh= ci_hcd ehci_hcd [last unloaded: microcode] Apr 9 22:57:55 deliv1 kernel: Pid: 4085, comm: qemu-kvm Not tainted 2.6.= 29.1-rt5-32bit #39 Apr 9 22:57:55 deliv1 kernel: Call Trace: Apr 9 22:57:55 deliv1 kernel: [] warn_slowpath+0x76/0xad Apr 9 22:57:55 deliv1 kernel: [] ? sub_preempt_count+0x94/0xa3= Apr 9 22:57:55 deliv1 kernel: [] ? set_spte+0xe/0x5dd [kvm] Apr 9 22:57:55 deliv1 kernel: [] ? __schedule+0x9b0/0x9f9 Apr 9 22:57:55 deliv1 kernel: [] ? unalias_gfn+0xe/0x54 [kvm] Apr 9 22:57:55 deliv1 kernel: [] ? __rcu_read_unlock+0x6e/0x7d= Apr 9 22:57:55 deliv1 kernel: [] ? cpuacct_charge+0x52/0x58 Apr 9 22:57:55 deliv1 kernel: [] ? update_curr+0x136/0x177 Apr 9 22:57:55 deliv1 kernel: [] ? sched_clock+0x44/0x64 Apr 9 22:57:55 deliv1 kernel: [] ? __rcu_read_unlock+0x6e/0x7d= Apr 9 22:57:55 deliv1 kernel: [] ? cpuacct_charge+0x52/0x58 Apr 9 22:57:55 deliv1 kernel: [] smp_call_function_single+0x5a= /0x11c Apr 9 22:57:55 deliv1 kernel: [] ? __vcpu_clear+0x0/0xbc [kvm_= intel] Apr 9 22:57:55 deliv1 kernel: [] vmx_vcpu_load+0x46/0x191 [kvm= _intel] Apr 9 22:57:55 deliv1 kernel: [] ? __spin_unlock+0x14/0x28 Apr 9 22:57:55 deliv1 kernel: [] kvm_arch_vcpu_load+0x14/0x1e = [kvm] Apr 9 22:57:55 deliv1 kernel: [] kvm_sched_in+0x10/0x12 [kvm] Apr 9 22:57:55 deliv1 kernel: [] finish_task_switch+0x97/0xe6 Apr 9 22:57:55 deliv1 kernel: [] __schedule+0x9a1/0x9f9 Apr 9 22:57:55 deliv1 kernel: [] ? hrtimer_interrupt+0x18a/0x1= 92 Apr 9 22:57:55 deliv1 kernel: [] ? restore_nocheck_notrace+0x0= /0xe Apr 9 22:57:55 deliv1 kernel: [] ? kvm_arch_vcpu_ioctl_run+0x4= 06/0x634 [kvm] Apr 9 22:57:55 deliv1 kernel: [] ? preempt_schedule+0x3e/0x67 Apr 9 22:57:55 deliv1 kernel: [] preempt_schedule+0x4d/0x67 Apr 9 22:57:55 deliv1 kernel: [] kvm_arch_vcpu_ioctl_run+0x406= /0x634 [kvm] Apr 9 22:57:55 deliv1 kernel: [] kvm_vcpu_ioctl+0xf4/0x659 [kv= m] Apr 9 22:57:55 deliv1 kernel: [] ? __schedule+0x9b0/0x9f9 Apr 9 22:57:55 deliv1 kernel: [] ? tick_dev_program_event+0x2d= /0x9a Apr 9 22:57:55 deliv1 kernel: [] ? kvm_vcpu_ioctl+0x0/0x659 [k= vm] Apr 9 22:57:55 deliv1 kernel: [] vfs_ioctl+0x27/0x6e Apr 9 22:57:55 deliv1 kernel: [] do_vfs_ioctl+0x49b/0x4d4 Apr 9 22:57:55 deliv1 kernel: [] ? trace_hardirqs_on_thunk+0xc= /0x10 Apr 9 22:57:55 deliv1 kernel: [] ? fget_light+0x85/0x9a Apr 9 22:57:55 deliv1 kernel: [] sys_ioctl+0x45/0x5f Apr 9 22:57:55 deliv1 kernel: [] sysenter_do_call+0x12/0x27 Apr 9 22:57:55 deliv1 kernel: ---[ end trace ea071060aeca7fc5 ]--- --------------030303040602040100080507--