From: Anthony Liguori <anthony@codemonkey.ws>
To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [PULL] Memory core space reduction
Date: Tue, 28 Feb 2012 12:56:38 -0600 [thread overview]
Message-ID: <4F4D2366.2010209@codemonkey.ws> (raw)
In-Reply-To: <4F4D19C5.8030507@redhat.com>
On 02/28/2012 12:15 PM, Avi Kivity wrote:
> On 02/28/2012 08:13 PM, Anthony Liguori wrote:
>>
>> FWIW, I'm processing this PULL request right now and I'm seeing a SEGV
>> too. The backtrace is a malloc failure in QOM.
>>
>
> How do we reproduce this?
The guest never gets to run so I don't think the initrd/vmlinuz matter.
/home/anthony/build/qemu/x86_64-softmmu/qemu-system-x86_64 -kernel
bin/vmlinuz-3.0 -initrd .tmp-11243/initramfs-11243.img.gz -append "console=ttyS0
seed=57279" -nographic -enable-kvm -hda /home/anthony/images/linux.img -M pc-1.0
-drive file=/home/anthony/images/linux.img,if=virtio,snapshot=on -device
virtio-balloon-pci -device virtio-serial -net nic,model=virtio -net user -snapshot
#0 0x00007f031caf9b5d in malloc_consolidate (av=0x7f031ce111c0)
at malloc.c:5169
#1 0x00007f031cafb472 in _int_malloc (av=0x7f031ce111c0, bytes=16512)
at malloc.c:4373
#2 0x00007f031cafe31e in __libc_malloc (bytes=16512) at malloc.c:3660
#3 0x00007f03202f47ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f03202f4aba in g_malloc0 ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f0320d23f62 in qmp_input_visitor_new (obj=0x7f03223afc50)
at /home/anthony/git/qemu/qapi/qmp-input-visitor.c:250
#6 0x00007f0320d41469 in object_property_set_qobject (obj=0x7f0322337f00,
value=<value optimized out>, name=0x7f0320e844ed "ioeventfd",
errp=0x7fff2beec7b0) at /home/anthony/git/qemu/qom/qom-qobject.c:23
#7 0x00007f0320d404ee in object_property_set_bool (obj=0x7f0322337f00,
value=<value optimized out>, name=0x7f0320e844ed "ioeventfd",
errp=0x7fff2beec7b0) at /home/anthony/git/qemu/qom/object.c:729
#8 0x00007f0320d29496 in qdev_prop_set_defaults (dev=0x7f0322337f00,
props=0x7f03211f0d80) at /home/anthony/git/qemu/hw/qdev-properties.c:1101
#9 0x00007f0320d3f52d in object_init_with_type (obj=0x7f0322337f00,
ti=0x7f03223130b0) at /home/anthony/git/qemu/qom/object.c:250
#10 0x00007f0320d3f52d in object_init_with_type (obj=0x7f0322337f00,
ti=0x7f032230c7d0) at /home/anthony/git/qemu/qom/object.c:250
#11 0x00007f0320d3f70d in object_new_with_type (type=0x7f032230c7d0)
at /home/anthony/git/qemu/qom/object.c:361
#12 0x00007f0320d2adb8 in qdev_try_create (bus=0x7f0322341e10,
name=0x7f0320e7fa14 "virtio-net-pci")
at /home/anthony/git/qemu/hw/qdev.c:123
#13 0x00007f0320d2ae29 in qdev_create (bus=0x7f0322341e10,
name=0x7f0320e7fa14 "virtio-net-pci")
at /home/anthony/git/qemu/hw/qdev.c:103
#14 0x00007f0320cde89f in pci_create_multifunction (bus=<value optimized out>,
devfn=-1, multifunction=false, name=<value optimized out>)
at /home/anthony/git/qemu/hw/pci.c:1541
#15 0x00007f0320cdea0a in pci_nic_init (nd=0x7f03219afc80,
default_model=<value optimized out>, default_devaddr=<value optimized out>)
at /home/anthony/git/qemu/hw/pci.c:1391
#16 0x00007f0320cdeade in pci_nic_init_nofail (nd=0x7f03219afc80,
default_model=0x7f0320e79e67 "e1000", default_devaddr=0x0)
at /home/anthony/git/qemu/hw/pci.c:1407
#17 0x00007f0320df4ed4 in pc_init1 (system_memory=<value optimized out>,
system_io=0x7f0321c30000, ram_size=134217728,
boot_device=0x7fff2beecd40 "cad", kernel_filename=<value optimized out>,
kernel_cmdline=<value optimized out>,
initrd_filename=0x7f0321c2e370 ".tmp-11243/initramfs-11243.img.gz",
cpu_model=0x0, pci_enabled=1, kvmclock_enabled=1)
at /home/anthony/git/qemu/hw/pc_piix.c:247
#18 0x00007f0320df55a8 in pc_init_pci (ram_size=134217728,
boot_device=0x7fff2beecd40 "cad",
kernel_filename=0x7f0321c2e2f0 "bin/vmlinuz-3.0",
kernel_cmdline=0x7f0321c2e400 "console=ttyS0 seed=57279",
initrd_filename=0x7f0321c2e370 ".tmp-11243/initramfs-11243.img.gz",
cpu_model=<value optimized out>) at /home/anthony/git/qemu/hw/pc_piix.c:313
#19 0x00007f0320d04b80 in main (argc=<value optimized out>,
argv=<value optimized out>, envp=<value optimized out>)
at /home/anthony/git/qemu/vl.c:3482
Regards,
Anthony Liguori
next prev parent reply other threads:[~2012-02-28 18:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-28 12:25 [Qemu-devel] [PULL] Memory core space reduction Avi Kivity
2012-02-28 12:26 ` Avi Kivity
2012-02-28 17:59 ` Michael S. Tsirkin
2012-02-28 18:13 ` Anthony Liguori
2012-02-28 18:15 ` Avi Kivity
2012-02-28 18:31 ` Anthony Liguori
2012-02-28 18:56 ` Anthony Liguori [this message]
2012-02-28 19:14 ` Anthony Liguori
2012-02-28 19:17 ` Avi Kivity
2012-02-28 19:20 ` Anthony Liguori
2012-02-28 22:58 ` Michael S. Tsirkin
2012-02-29 10:09 ` Avi Kivity
2012-02-29 10:23 ` Michael S. Tsirkin
2012-02-29 10:53 ` Avi Kivity
2012-02-29 11:25 ` Michael S. Tsirkin
2012-02-29 11:31 ` Avi Kivity
2012-02-29 11:45 ` Avi Kivity
2012-02-29 14:15 ` Michael S. Tsirkin
2012-02-29 11:27 ` Avi Kivity
-- strict thread matches above, loose matches on Subject: below --
2012-02-28 12:24 Avi Kivity
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