Your message dated Sun, 10 May 2020 16:28:00 +0300
with message-id <[email protected]>
and subject line Re: qemu-kvm: cannot boot a wheezy guest with SMP and less 
than 927 MB of RAM
has caused the Debian Bug report #684775,
regarding cannot boot a wheezy guest with SMP and less than 927 MB of RAM on 
32bit host
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
684775: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684775
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: qemu-kvm
Version: 1.1.0+dfsg-3
Severity: normal

Dear Maintainer,

after upgrading the host system from squeeze to wheezy a guest
system with wheezy does not boot anymore.

Before the upgrade the same guest system was running without
problems with the following options (with squeeze as host system):

$ kvm -smp 2 -m 512 -drive file=/local/kvm/wheezy.img,index=0,media=disk


When I disable the smp option the guest system also boots with
wheezy as host system. It even boots successfully with very low
RAM settings:

$ kvm -m 48 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
# free
             total       used       free     shared    buffers     cached
Mem:         43388      38856       4532          0       2588      20328
-/+ buffers/cache:      15940      27448
Swap:       489944        132     489812


When I enable the smp option with wheezy as host system I have to
give the same wheezy guest system at least 927 MB of RAM to be
able to boot:

$ kvm -smp 2 -m 927 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
# free
             total       used       free     shared    buffers     cached
Mem:        935632      47060     888572          0       2932      24264
-/+ buffers/cache:      19864     915768
Swap:       489944          0     489944


If I supply less than 927 MB of RAM the guest boot fails with the
following error messages:

$ kvm -smp 2 -m 926 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
Loading, please wait...20120603_194846-gandalf)
modprobe: module unix not found in modules.dep
[   28.008023] BUG: soft lockup - CPU#0 stuck for 23s! [busybox:155]
[   28.008402] Process busybox (pid: 155, ti=f72ca000 task=f710d6a0 task.ti=f72c
a000)(http://ipxe.org) 00:03.0 C900 PCI2.10 PnP PMM+39DC9CA0+39D89CA0 C900
[   28.008733] Stack:
[   28.008899] Call Trace:
[   28.009172] Code: 0f 30 31 c0 57 89 c6 53 6a 00 55 68 43 d1 35 c1 e8 ad 6f 29
 00 89 f0 83 c4 14 5b 5e 5f 5d c3 90 56 89 c6 53 89 d3 8b 00 8b 56 04 <f0> 0f c7
 0e 75 fa 5b 5e c3 9c 58 c3 50 9d c3 fa c3 fb c3 fb f4


If I reduce the memory further the error messages slightly change:

$ kvm -smp 2 -m 925 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
Loading, please wait...20120603_194846-gandalf)
[   28.008015] BUG: soft lockup - CPU#0 stuck for 23s! [modprobe:119]
[   28.008373] Process modprobe (pid: 119, ti=f728c000 task=f7262900 task.ti=f72
8c000)
[   28.008709] Stack:) 00:03.0 C900 PCI2.10 PnP PMM+39CC9CA0+39C89CA0 C900
[   28.008875] Call Trace:
[   28.009119] Code: 0f 30 31 c0 57 89 c6 53 6a 00 55 68 43 d1 35 c1 e8 ad 6f 29
 00 89 f0 83 c4 14 5b 5e 5f 5d c3 90 56 89 c6 53 89 d3 8b 00 8b 56 04 <f0> 0f c7
 0e 75 fa 5b 5e c3 9c 58 c3 50 9d c3 fa c3 fb c3 fb f4
[   28.024012] BUG: soft lockup - CPU#1 stuck for 23s! [modprobe:62]
[   28.024324] Process modprobe (pid: 62, ti=f70e2000 task=f70bf240 task.ti=f70e
2000)
[   28.024653] Stack:
[   28.024819] Call Trace:
[   28.025016] Code: f0 ff 08 79 05 e8 44 6d 10 00 c3 f0 81 28 00 00 10 00 74 05
 e8 19 6d 10 00 c3 ba 00 01 00 00 f0 66 0f c1 10 0f b6 ce 38 ca 74 06 <f3> 90 8a
 10 eb f6 c3 53 66 8b 10 89 c1 31 c0 38 d6 75 16 8d 9a


$ kvm -smp 2 -m 924 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
Loading, please wait...20120603_194846-gandalf)
[   28.008012] BUG: soft lockup - CPU#0 stuck for 23s! [modprobe:120]
[   28.008373] Process modprobe (pid: 120, ti=f7264000 task=f63e4560 task.ti=f72
64000)
[   28.008733] Stack:) 00:03.0 C900 PCI2.10 PnP PMM+39BC9CA0+39B89CA0 C900
[   28.008900] Call Trace:
[   28.009141] Code: 0f 30 31 c0 57 89 c6 53 6a 00 55 68 43 d1 35 c1 e8 ad 6f 29
 00 89 f0 83 c4 14 5b 5e 5f 5d c3 90 56 89 c6 53 89 d3 8b 00 8b 56 04 <f0> 0f c7
 0e 75 fa 5b 5e c3 9c 58 c3 50 9d c3 fa c3 fb c3 fb f4
[   28.028012] BUG: soft lockup - CPU#1 stuck for 23s! [modprobe:67]
[   28.028343] Process modprobe (pid: 67, ti=f70ec000 task=f70be620 task.ti=f70e
c000)
[   28.028672] Stack:
[   28.028839] Call Trace:
[   28.029040] Code: 05 e8 44 6d 10 00 c3 f0 81 28 00 00 10 00 74 05 e8 19 6d 10
 00 c3 ba 00 01 00 00 f0 66 0f c1 10 0f b6 ce 38 ca 74 06 f3 90 8a 10 <eb> f6 c3
 53 66 8b 10 89 c1 31 c0 38 d6 75 16 8d 9a 00 01 00 00


$ kvm -smp 2 -m 923 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
Loading, please wait...20120603_194846-gandalf)
[   28.008014] BUG: soft lockup - CPU#0 stuck for 23s! [modprobe:113]
[   28.008368] Process modprobe (pid: 113, ti=f725a000 task=f72110c0 task.ti=f72
5a000)
[   28.008706] Stack:) 00:03.0 C900 PCI2.10 PnP PMM+39AC9CA0+39A89CA0 C900
[   28.008871] Call Trace:
[   28.009112] Code: 0f 30 31 c0 57 89 c6 53 6a 00 55 68 43 d1 35 c1 e8 ad 6f 29
 00 89 f0 83 c4 14 5b 5e 5f 5d c3 90 56 89 c6 53 89 d3 8b 00 8b 56 04 <f0> 0f c7
 0e 75 fa 5b 5e c3 9c 58 c3 50 9d c3 fa c3 fb c3 fb f4
[   28.028012] BUG: soft lockup - CPU#1 stuck for 23s! [udevd:118]
[   28.028316] Process udevd (pid: 118, ti=f7284000 task=f72148c0 task.ti=f72840
00)
[   28.028637] Stack:
[   28.028802] Call Trace:
[   28.028991] Code: 08 79 05 e8 44 6d 10 00 c3 f0 81 28 00 00 10 00 74 05 e8 19
 6d 10 00 c3 ba 00 01 00 00 f0 66 0f c1 10 0f b6 ce 38 ca 74 06 f3 90 <8a> 10 eb
 f6 c3 53 66 8b 10 89 c1 31 c0 38 d6 75 16 8d 9a 00 01


$ kvm -smp 2 -m 922 -curses -drive file=/local/kvm/wheezy.img,index=0,media=disk
Loading, please wait...20120603_194846-gandalf)
[   28.008013] BUG: soft lockup - CPU#0 stuck for 23s! [udevd:117]
[   28.008368] Process udevd (pid: 117, ti=f723c000 task=f70e6200 task.ti=f723c0
00)
[   28.008691] Stack:) 00:03.0 C900 PCI2.10 PnP PMM+399C9CA0+39989CA0 C900
[   28.008855] Call Trace:
[   28.009066] Code: 08 79 05 e8 44 6d 10 00 c3 f0 81 28 00 00 10 00 74 05 e8 19
 6d 10 00 c3 ba 00 01 00 00 f0 66 0f c1 10 0f b6 ce 38 ca 74 06 f3 90 <8a> 10 eb
 f6 c3 53 66 8b 10 89 c1 31 c0 38 d6 75 16 8d 9a 00 01
[   28.024138] BUG: soft lockup - CPU#1 stuck for 23s! [modprobe:110]
[   28.024451] Process modprobe (pid: 110, ti=f7238000 task=f71ea040 task.ti=f72
38000)
[   28.024781] Stack:
[   28.024945] Call Trace:
[   28.025157] Code: 0f 30 31 c0 57 89 c6 53 6a 00 55 68 43 d1 35 c1 e8 ad 6f 29
 00 89 f0 83 c4 14 5b 5e 5f 5d c3 90 56 89 c6 53 89 d3 8b 00 8b 56 04 <f0> 0f c7
 0e 75 fa 5b 5e c3 9c 58 c3 50 9d c3 fa c3 fb c3 fb f4


The host system has 2 cores (Core2 Duo) with 8 GB of RAM.
The VM image is in qcow2 format if that matters:

$ qemu-img info /local/kvm/wheezy.img
image: /local/kvm/wheezy.img
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 2.4G
cluster_size: 65536


Regards,

Uwe


-- Package-specific info:


/proc/cpuinfo:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Duo CPU     E8500  @ 3.16GHz
stepping        : 10
microcode       : 0xa07
cpu MHz         : 1998.000
cache size      : 6144 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc 
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 
ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips        : 6317.29
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Duo CPU     E8500  @ 3.16GHz
stepping        : 10
microcode       : 0xa07
cpu MHz         : 1998.000
cache size      : 6144 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
apicid          : 1
initial apicid  : 1
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc 
arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 
ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips        : 6317.46
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:




-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (1750, 'testing'), (650, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-3-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages qemu-kvm depends on:
ii  adduser             3.113+nmu3
ii  ipxe-qemu           1.0.0+git-20120202.f6840ba-3
ii  libaio1             0.3.109-3
ii  libasound2          1.0.25-3
ii  libbluetooth3       4.99-2
ii  libbrlapi0.5        4.4-4
ii  libc6               2.13-33
ii  libcurl3-gnutls     7.26.0-1
ii  libglib2.0-0        2.32.3-1
ii  libgnutls26         2.12.20-1
ii  libiscsi1           1.4.0-3
ii  libjpeg8            8d-1
ii  libncurses5         5.9-10
ii  libpng12-0          1.2.49-1
ii  libpulse0           2.0-3
ii  libsasl2-2          2.1.25.dfsg1-4+b1
ii  libsdl1.2debian     1.2.15-5
ii  libspice-server1    0.11.0-1
ii  libtinfo5           5.9-10
ii  libusbredirparser0  0.4.3-2
ii  libuuid1            2.20.1-5.1
ii  libvdeplug2         2.3.2-4
ii  libx11-6            2:1.5.0-1
ii  python              2.7.3~rc2-1
ii  qemu-keymaps        1.1.0+dfsg-1
ii  qemu-utils          1.1.0+dfsg-1
ii  seabios             1.7.0-1
ii  vgabios             0.7a-3
ii  zlib1g              1:1.2.7.dfsg-13

Versions of packages qemu-kvm recommends:
ii  bridge-utils  1.5-4
ii  iproute       20120521-3

Versions of packages qemu-kvm suggests:
ii  debootstrap  1.0.42
pn  samba        <none>
ii  vde2         2.3.2-4

-- no debconf information

--- End Message ---
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