Bugs item #2633594, was opened at 2009-02-24 13:37
Message generated for change (Comment added) made by sf-robot
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Category: None
Group: None
>Status: Closed
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: SourceForge Robot (sf-robot)
Date: 2009-03-18 18:57
Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).
----------------------------------------------------------------------
Comment By: Django (een4dja)
Date: 2009-02-27 08:18
Message:
Same issue has occurred again twice in the last 24hours with the attached
patch.
Here is the latest backtrace:
(gdb) bt
#0 bdrv_aio_cancel (acb=0x800000000218bcf0) at block.c:1370
#1 0x0000000000432590 in ide_dma_cancel (bm=0x2bc5e60) at
/usr/src/kvm-84/qemu/hw/ide.c:2973
#2 0x00000000004325f5 in bmdma_cmd_writeb (opaque=0x2bc5e60, addr=49152,
val=0) at /usr/src/kvm-84/qemu/hw/ide.c:2987
#3 0x000000000051993d in kvm_outb (opaque=<value optimized out>,
addr=49152, data=0 '\0') at /usr/src/kvm-84/qemu/qemu-kvm.c:684
#4 0x0000000000546032 in handle_io (kvm=0x29252f0, run=0x7f82ba623000,
vcpu=0) at libkvm.c:722
#5 0x0000000000546972 in kvm_run (kvm=0x29252f0, vcpu=0, env=0x292b7d0)
at libkvm.c:951
#6 0x000000000051a109 in kvm_cpu_exec (env=<value optimized out>) at
/usr/src/kvm-84/qemu/qemu-kvm.c:205
#7 0x000000000051a3f8 in ap_main_loop (_env=<value optimized out>) at
/usr/src/kvm-84/qemu/qemu-kvm.c:414
#8 0x00007f82b9d61fc7 in start_thread () from /lib/libpthread.so.0
#9 0x00007f82b91d65ad in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()
Avi, I have sent you links to the core and bin again.
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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