Yet another one

Yet another one

[ivelin.ivanov]

Hello!

I think I found another bug.
It started when I added new Linux VM with the following command:
  /usr/local/bin/qemu-system-x86_64 -smp 4 -hda /mnt/epic.img -m 1024  
-boot c -vnc :13 -runas kvm -daemonize -localtime -k en-us -net  
nic,vlan=3,model=rtl8139,macaddr=00:0F:BB:BB:EC:AA -net  
tap,vlan=3,script=/tmp/if-up3 -net  
nic,vlan=0,model=rtl8139,macaddr=00:0F:BB:BB:EC:AB -net  
tap,vlan=0,script=/tmp/if-up

  Here is the log:
----------------- start of log ----------------------------
Jun 22 17:42:37 pc187 sshd[7277]: Accepted keyboard-interactive/pam  
for root from 10.0.0.61 port 44367 ssh2
Jun 22 17:44:15 pc187 syslog-ng[2226]: Log statistics;  
dropped='pipe(/dev/xconsole)=0', dropped='pipe(/dev/tty10)=0',  
processed='center(queued)=1876', proces
sed='center(received)=1020', processed='destination(newsnotice)=0',  
processed='destination(acpid)=0', processed='destination(firewall)=0',  
processed='destina
tion(null)=0', processed='destination(mail)=0',  
processed='destination(mailinfo)=0',  
processed='destination(console)=183', processed='destination(newserr)=0'
, processed='destination(newscrit)=0',  
processed='destination(messages)=1020',  
processed='destination(mailwarn)=0',  
processed='destination(localmessages)=307
', processed='destination(netmgm)=0',  
processed='destination(mailerr)=0',  
processed='destination(xconsole)=183',  
processed='destination(warn)=183', processed
='source(src)=1020'
Jun 22 17:45:37 pc187 kernel: device tap11 entered promiscuous mode
Jun 22 17:45:37 pc187 kernel: br0: port 8(tap11) entering learning state
Jun 22 17:45:46 pc187 kernel: tap11: no IPv6 routers present
Jun 22 17:45:50 pc187 kernel: BUG: using smp_processor_id() in  
preemptible [00000000] code: qemu-system-x86/7353
Jun 22 17:45:50 pc187 kernel: caller is  
kvm_arch_vcpu_ioctl_run+0x272/0xab6 [kvm]
Jun 22 17:45:50 pc187 kernel: Pid: 7353, comm: qemu-system-x86  
Tainted: G        W  2.6.30-9-pae #1
Jun 22 17:45:50 pc187 kernel: Call Trace:
Jun 22 17:45:50 pc187 kernel:  [<c0341862>] ? printk+0xf/0x15
Jun 22 17:45:50 pc187 kernel:  [<c0234593>] debug_smp_processor_id+0xb3/0xc8
Jun 22 17:45:50 pc187 kernel:  [<f7feaaef>]  
kvm_arch_vcpu_ioctl_run+0x272/0xab6 [kvm]
Jun 22 17:45:50 pc187 kernel:  [<c0126c42>] ? try_to_wake_up+0x2d1/0x2db
Jun 22 17:45:50 pc187 kernel:  [<c0126c57>] ? default_wake_function+0xb/0xd
Jun 22 17:45:50 pc187 kernel:  [<c011f2aa>] ? __wake_up_common+0x35/0x5b
Jun 22 17:45:50 pc187 kernel:  [<f7fe34ef>] kvm_vcpu_ioctl+0xec/0x602 [kvm]
Jun 22 17:45:50 pc187 kernel:  [<c014bf82>] ? wake_futex+0x22/0x2f
Jun 22 17:45:50 pc187 kernel:  [<c03441e2>] ? _spin_unlock+0xf/0x23
Jun 22 17:45:50 pc187 kernel:  [<f7fe4e8a>] ? kvm_dev_ioctl+0x20e/0x233 [kvm]
Jun 22 17:45:50 pc187 kernel:  [<c014988a>] ?  
clockevents_program_event+0xd4/0xe3
Jun 22 17:45:50 pc187 kernel:  [<f7fe3403>] ? kvm_vcpu_ioctl+0x0/0x602 [kvm]
Jun 22 17:45:50 pc187 kernel:  [<c01b2fe7>] vfs_ioctl+0x22/0x69
Jun 22 17:45:50 pc187 kernel:  [<c01b3467>] do_vfs_ioctl+0x439/0x472
Jun 22 17:45:50 pc187 kernel:  [<c014a888>] ? tick_program_event+0x30/0x38
Jun 22 17:45:50 pc187 kernel:  [<c0143137>] ? hrtimer_interrupt+0x14f/0x15f
Jun 22 17:45:50 pc187 kernel:  [<c01a8e52>] ? fget_light+0x8a/0xb1
Jun 22 17:45:50 pc187 kernel:  [<c01b34e0>] sys_ioctl+0x40/0x5a
Jun 22 17:45:50 pc187 kernel:  [<c0102b0c>] sysenter_do_call+0x12/0x28
Jun 22 17:45:50 pc187 kernel: BUG: using smp_processor_id() in  
preemptible [00000000] code: qemu-system-x86/7353
Jun 22 17:45:50 pc187 kernel: caller is  
kvm_arch_vcpu_ioctl_run+0x286/0xab6 [kvm]
Jun 22 17:45:50 pc187 kernel: Pid: 7353, comm: qemu-system-x86  
Tainted: G        W  2.6.30-9-pae #1
Jun 22 17:45:50 pc187 kernel: Call Trace:
Jun 22 17:45:50 pc187 kernel:  [<c0341862>] ? printk+0xf/0x15

----------------- end of log ----------------------------

These are the currently working VMs .. without problem for the last 3 days.

  # ps axwf | grep -i qemu
  8402 pts/0    S+     0:00          \_ grep -i qemu
29630 ?        Rl   194:58 ///usr/local/bin/qemu-system-x86_64 -smp 2  
-cpu qemu32 -hda /mnt/rcom.img -m 1024 -boot c -vnc :5 -runas kvm  
-daemonize -localtime -k en-us -net  
nic,vlan=1,model=rtl8139,macaddr=00:FC:25:5A:93:F1 -net  
tap,vlan=1,script=/tmp/if-up1 -net  
nic,vlan=0,model=rtl8139,macaddr=00:FC:25:FF:FF:A2 -net  
tap,vlan=0,script=/tmp/if-up
  3422 ?        Sl    18:07 /usr/local/bin/qemu-system-x86_64 -smp 2  
-cpu qemu32 -hda /mnt/po.img -m 1024 -boot c -vnc :9 -runas kvm  
-daemonize -localtime -k en-us -net  
nic,vlan=0,model=rtl8139,macaddr=00:50:50:50:50:00 -net  
tap,vlan=0,script=/tmp/if-up4 -net  
nic,vlan=1,model=rtl8139,macaddr=00:50:50:50:50:01 -net  
tap,vlan=1,script=/tmp/if-up
  3443 ?        Sl    51:08 /usr/local/bin/qemu-system-x86_64 -smp 2  
-cpu qemu32 -hda /mnt/test-tmp.img -m 1024 -boot c -vnc :4 -runas kvm  
-daemonize -localtime -k en-us -net  
nic,vlan=0,model=rtl8139,macaddr=00:1C:25:FF:FF:DD -net  
tap,vlan=0,script=/tmp/if-up
  5210 ?        Sl    16:38 /usr/local/bin/qemu-system-x86_64 -smp 2  
-cpu qemu32 -hda /mnt/alc-tmp.img -m 1024 -boot c -vnc :7 -runas kvm  
-daemonize -localtime -k en-us -net  
nic,vlan=2,model=rtl8139,macaddr=00:1C:25:5A:93:F5 -net  
tap,vlan=2,script=/tmp/if-up2 -net  
nic,vlan=0,model=rtl8139,macaddr=00:1C:25:FF:FF:A5 -net  
tap,vlan=0,script=/tmp/if-up
  5354 ?        Sl   121:20 /usr/local/bin/qemu-system-x86_64 -cpu  
qemu32 -smp 2 -hda /mnt/alcs.img -m 1024 -boot c -vnc :12 -runas kvm  
-daemonize -localtime -k en-us -net  
nic,vlan=2,model=rtl8139,macaddr=00:1C:25:5A:93:86 -net  
tap,vlan=2,script=/tmp/if-up2 -net  
nic,vlan=0,model=rtl8139,macaddr=00:1C:25:FF:FF:86 -net  
tap,vlan=0,script=/tmp/if-up
  6755 ?        Sl     2:36 /usr/local/bin/qemu-system-x86_64 -smp 4  
-hda /mnt/epic.img -m 1024 -boot c -vnc :13 -runas kvm -daemonize  
-localtime -k en-us -net  
nic,vlan=3,model=rtl8139,macaddr=00:0F:BB:BB:EC:AA -net  
tap,vlan=3,script=/tmp/if-up3 -net  
nic,vlan=0,model=rtl8139,macaddr=00:0F:BB:BB:EC:AB -net  
tap,vlan=0,script=/tmp/if-up


Here is some more info:
# uname -a
Linux pc187 2.6.30-9-pae #1 SMP PREEMPT Wed Jun 17 15:29:59 EEST 2009
i686 i686 i386 GNU/Linux
# qemu-system-x86_64  --version
QEMU PC emulator version 0.10.50 (qemu-kvm-devel-86), Copyright (c)
2003-2008 Fabrice Bellard
# modinfo /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko
filename:       /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko
license:        GPL
author:         Qumranet
srcversion:     934CD9DB264501B0431438A
depends:
vermagic:       2.6.30-9-pae SMP preempt mod_unload modversions CORE2
parm:           oos_shadow:bool
parm:           msi2intx:bool