[ kvm-Bugs-2633594 ] Segfault after ~24hours online.

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Bugs item #2633594, was opened at 2009-02-24 13:37
Message generated for change (Settings changed) made by een4dja
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2633594&group_id=180599

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Category: None
Group: None
>Status: Pending
Resolution: None
Priority: 5
Private: No
Submitted By: Django (een4dja)
Assigned to: Nobody/Anonymous (nobody)
Summary: Segfault after ~24hours online.

Initial Comment:
linux distro: Debian Lenny 5.0
cpu model: Intel(R) CPU X3220 @ 2.40GHz
kvm version: QEMU PC emulator version 0.9.1 (kvm-84)
host kernel version: 2.6.26-1-vserver-amd64
host kernel arch x86_64
guest OS type: Windows 32bit
qemu command line: qemu-system-x86_64 -no-acpi -cdrom /my/cdrom/images/image.iso -hda /my/disk/images/image.img -m 512 -net nic,model=virtio -net user -redir tcp:3389::3389 -localtime -nographic

Here's the back trace:

(gdb) bt
#0  ide_write_dma_cb (opaque=0x1e91e60, ret=0) at /usr/src/kvm-84/qemu/hw/ide.c:1135
#1  0x0000000000414b9e in dma_bdrv_cb (opaque=0x1fd3b40, ret=0) at /usr/src/kvm-84/qemu/dma-helpers.c:86
#2  0x000000000046b858 in bdrv_aio_rw_vector_cb (opaque=0x1fd37c0, ret=0) at block.c:1276
#3  0x000000000041928f in posix_aio_read (opaque=<value optimized out>) at block-raw-posix.c:507
#4  0x000000000040899a in main_loop_wait (timeout=<value optimized out>) at /usr/src/kvm-84/qemu/vl.c:3752
#5  0x0000000000519b7a in kvm_main_loop () at /usr/src/kvm-84/qemu/qemu-kvm.c:596
#6  0x000000000040cfab in main (argc=<value optimized out>, argv=0x7ffff6eba0c8, envp=<value optimized out>)
    at /usr/src/kvm-84/qemu/vl.c:3809

The segfault occurs after roughly 20-24hours of the vm instance being on-line. I have experienced multiple occurrences of it happening.

I can supply URL's to the core and bin on request.

Thank you to the devs involved in this project, for all the hard work you have put in. 

Cheers,

Django

----------------------------------------------------------------------

Comment By: Django (een4dja)
Date: 2009-02-26 01:08

Message:
Applied the patch will report back in a few days if the issue has been
resolved.

----------------------------------------------------------------------

Comment By: Avi Kivity (avik)
Date: 2009-02-25 13:19

Message:
Please try the attached patch.

----------------------------------------------------------------------

Comment By: Django (een4dja)
Date: 2009-02-24 18:11

Message:
Sent as requested.

----------------------------------------------------------------------

Comment By: Avi Kivity (avik)
Date: 2009-02-24 13:45

Message:
Please mail me pointers to the core and executable.  I don't think you can
post them publicly.  Also, if the image contains private information, try
to reproduce on a clean image.

----------------------------------------------------------------------

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https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2633594&group_id=180599
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