[Expired for qemu-linaro (Ubuntu) because there has been no activity for
60 days.]
** Changed in: qemu-linaro (Ubuntu)
Status: Incomplete = Expired
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[Expired for qemu-linaro (Ubuntu Lucid) because there has been no
activity for 60 days.]
** Changed in: qemu-linaro (Ubuntu Lucid)
Status: Incomplete = Expired
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Moving this bug over to the qemu-linaro package, which now provides
qemu-system-arm
** Package changed: qemu-kvm (Ubuntu) = qemu-linaro (Ubuntu)
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** Package changed: qemu-kvm (Ubuntu) = qemu-linaro (Ubuntu)
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https://bugs.launchpad.net/bugs/532733
this bug has nothing to do with mono at all, please do not confuse it
with the (already open and already commented) mono tasks.
this bug is about qemu hanging if a big task of packages is installed,
even if there are no mono packages among them. note in the initial logs
that it hangs in various
agreed, guilty of shotgun reporting. will try to reproduce on qemu less
the mono-package installs before submitting to this tracker again.
Thank you for the feedback.
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this bug has nothing to do with mono at all, please do not confuse it
with the (already open and already commented) mono tasks.
this bug is about qemu hanging if a big task of packages is installed,
even if there are no mono packages among them. note in the initial logs
that it hangs in various
agreed, guilty of shotgun reporting. will try to reproduce on qemu less
the mono-package installs before submitting to this tracker again.
Thank you for the feedback.
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This is just an issue with mono, apparently does not appear on omap
boards. This will appear on a physical machine as well as virtual, I
have so far successfully rootstock ubuntu-minimal (meerkat) and used
apt-get install --no-install-recommends ubuntu-netbook to build thus
far. Am working on a
This is just an issue with mono, apparently does not appear on omap
boards. This will appear on a physical machine as well as virtual, I
have so far successfully rootstock ubuntu-minimal (meerkat) and used
apt-get install --no-install-recommends ubuntu-netbook to build thus
far. Am working on a
running this on a real arm board, snapdragon htc phone
this is a chroot apt-get install ubuntu-netbook. here is the results of my
'kill -SIGINT' for hanging mono processess, this does not appear to be an issue
related to kvm, since this has been done outside the virtual machine:
Setting up
running this on a real arm board, snapdragon htc phone
this is a chroot apt-get install ubuntu-netbook. here is the results of my
'kill -SIGINT' for hanging mono processess, this does not appear to be an issue
related to kvm, since this has been done outside the virtual machine:
Setting up
** Changed in: qemu-kvm (Ubuntu)
Assignee: Dustin Kirkland (kirkland) = (unassigned)
** Changed in: qemu-kvm (Ubuntu Lucid)
Assignee: Dustin Kirkland (kirkland) = (unassigned)
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** Changed in: qemu-kvm (Ubuntu)
Assignee: Dustin Kirkland (kirkland) = (unassigned)
** Changed in: qemu-kvm (Ubuntu Lucid)
Assignee: Dustin Kirkland (kirkland) = (unassigned)
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@Ricardo Salveti
Ok, I am going to get a release candidate for 10.10 Meerkat, install it
and try to rootstock ubuntu-netbook for lucid from there. I will inform
this log of my progress.
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apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You
Allright, it appears that iso-codes will build successefully on this
kernel:
u...@meerkatuname:~/kvm$ uname -a
Linux merelynatural 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:32:27 UTC
2010 x86_64 GNU/Linux
Output as follows:
Setting up x11-xkb-utils (7.5+1) ...
Setting up libxklavier16
@Ricardo Salveti
Ok, I am going to get a release candidate for 10.10 Meerkat, install it
and try to rootstock ubuntu-netbook for lucid from there. I will inform
this log of my progress.
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apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You
Allright, it appears that iso-codes will build successefully on this
kernel:
u...@meerkatuname:~/kvm$ uname -a
Linux merelynatural 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19 20:32:27 UTC
2010 x86_64 GNU/Linux
Output as follows:
Setting up x11-xkb-utils (7.5+1) ...
Setting up libxklavier16
This should help a little:
I can confirm that this is a problem in rootstock, not just inside qemu or
qemu/kvm.
Reproducible on host system.
System output from uname :
u...@lucid:~/kvm$ uname -a
Linux lucid 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010
x86_64 GNU/Linux
What fails is qemu-arm-static, as rootstock uses it internally to
install the packages.
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This should help a little:
I can confirm that this is a problem in rootstock, not just inside qemu or
qemu/kvm.
Reproducible on host system.
System output from uname :
u...@lucid:~/kvm$ uname -a
Linux lucid 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010
x86_64 GNU/Linux
What fails is qemu-arm-static, as rootstock uses it internally to
install the packages.
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** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: lucid-updates = None
** Changed in: qemu-kvm (Ubuntu)
Milestone: lucid-updates = None
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** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: lucid-updates = None
** Changed in: qemu-kvm (Ubuntu)
Milestone: lucid-updates = None
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Here is where it's getting stuck now:
Selecting previously deselected package libimobiledevice0.
Unpacking libimobiledevice0 (from
.../libimobiledevice0_0.9.7-1ubuntu1_armel.deb) ...
Selecting previously deselected package libtalloc2.
Unpacking libtalloc2 (from
After some tests I was able to reproduce the issue on Maverick and with
upstream Qemu (08218b3527301760393b0b4ec732fcdfb7ff6cda).
Also tried stressing the disk with fsstress and dd for many hours, but
couldn't reproduce the issue. The easier way to reproduce it is with
dpkg, but hard to find the
Here is where it's getting stuck now:
Selecting previously deselected package libimobiledevice0.
Unpacking libimobiledevice0 (from
.../libimobiledevice0_0.9.7-1ubuntu1_armel.deb) ...
Selecting previously deselected package libtalloc2.
Unpacking libtalloc2 (from
I'm now implementing the support for creating a rootstock rootfs without
requiring root, and I also got stuck at a segmentation fault, just after
executing the debootstrap' second stage.
I'm running the qemu-system-arm from qemu-kvm-extras 0.12.4+noroms-
0ubuntu4, at maverick.
My qemu command
For the seg fault bug I've created the bug 604872.
Meanwhile I'll try to reproduce the hang problem with Maverick and
upstream Qemu.
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I'm now implementing the support for creating a rootstock rootfs without
requiring root, and I also got stuck at a segmentation fault, just after
executing the debootstrap' second stage.
I'm running the qemu-system-arm from qemu-kvm-extras 0.12.4+noroms-
0ubuntu4, at maverick.
My qemu command
For the seg fault bug I've created the bug 604872.
Meanwhile I'll try to reproduce the hang problem with Maverick and
upstream Qemu.
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I am seeing similar issue on Lucid.
Rootstock version: rootstock-0.1.99.3
Here is my command line:
sudo ./rootstock --fqdn beagleboard --login ubuntu --password beagle
--imagesize 4G --swapsize 512 --components main,universe,multiverse --seed
@arvind this is not related to this bug, please open a new one
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Sure Thanks.
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beagleboard is not in upstream QEMU. Please do not mark bugs as affects
upstream QEMU unless you've actually reproduced the problem with
upstream QEMU.
** Changed in: qemu
Status: New = Invalid
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apt/dpkg in qemu-system-arm hangs if a big task is installed
@Anthony please see all the above comments before judging and please
reopen it upstream again
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You received this bug notification because you are a member of Ubuntu
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and just for reference so there isnt coming up any confusion again, the
used qemu call that breaks is for a versatilbepb machine using the
versatile kernel from http://ports.ubuntu.com/ubuntu-
ports/dists/lucid/main/installer-
armel/current/images/versatile/netboot/vmlinuz
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apt/dpkg in
If someone reproduces the bug against upstream qemu, feel free to refile
the bug with the appropriate information.
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I am seeing similar issue on Lucid.
Rootstock version: rootstock-0.1.99.3
Here is my command line:
sudo ./rootstock --fqdn beagleboard --login ubuntu --password beagle
--imagesize 4G --swapsize 512 --components main,universe,multiverse --seed
@arvind this is not related to this bug, please open a new one
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Sure Thanks.
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beagleboard is not in upstream QEMU. Please do not mark bugs as affects
upstream QEMU unless you've actually reproduced the problem with
upstream QEMU.
** Changed in: qemu
Status: New = Invalid
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apt/dpkg in qemu-system-arm hangs if a big task is installed
@Anthony, this bug has nothing to do with beagleboards it happens if
qemu is run on x86 systems
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@Anthony please see all the above comments before judging and please
reopen it upstream again
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and just for reference so there isnt coming up any confusion again, the
used qemu call that breaks is for a versatilbepb machine using the
versatile kernel from http://ports.ubuntu.com/ubuntu-
ports/dists/lucid/main/installer-
armel/current/images/versatile/netboot/vmlinuz
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apt/dpkg in
If someone reproduces the bug against upstream qemu, feel free to refile
the bug with the appropriate information.
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apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
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smells like an alignment issue, and in fact i'm just doing a rootstock
rootfs build with an added cat 3 /proc/cpu/alignement that got past
the well, known iso-codes hang (lets see if its a red herring or if it
finishes though)
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err, cat should indeed be echo above :)
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I built qemu-kvm with DEB_BUILD_OPTIONS=noopt that replaces -O2 with -O0
and (after _long_ session) ran into this crasher:
Program received signal SIGSEGV, Segmentation fault.
0xcde9719c in ?? ()
(gdb) bt
#0 0xcde9719c in ?? ()
#1 0x7fffe090 in ?? ()
#2
it definately worked for three ubuntu-netbook builds now, i'm just
running an ubuntu-desktop one, if that works as well, i'll prepare an
SRU package for rootstock to verify it works on other i386 systems too.
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apt/dpkg in qemu-system-arm hangs if a big task is installed
smells like an alignment issue, and in fact i'm just doing a rootstock
rootfs build with an added cat 3 /proc/cpu/alignement that got past
the well, known iso-codes hang (lets see if its a red herring or if it
finishes though)
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apt/dpkg in qemu-system-arm hangs if a big task is installed
err, cat should indeed be echo above :)
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Ogra proposed change (echo 3 /proc/cpu/alignement in the guest vm) did
not work for me. Ogra is running on i386, I'm on amd64.
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I built qemu-kvm with DEB_BUILD_OPTIONS=noopt that replaces -O2 with -O0
and (after _long_ session) ran into this crasher:
Program received signal SIGSEGV, Segmentation fault.
0xcde9719c in ?? ()
(gdb) bt
#0 0xcde9719c in ?? ()
#1 0x7fffe090 in ?? ()
#2
it definately worked for three ubuntu-netbook builds now, i'm just
running an ubuntu-desktop one, if that works as well, i'll prepare an
SRU package for rootstock to verify it works on other i386 systems too.
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apt/dpkg in qemu-system-arm hangs if a big task is installed
Soren pointed out that is more useful than plain backtrace:
From the qemu-kvm -O0:
(gdb) thread apply all bt full
Thread 1 (Thread 0x77fc7760 (LWP 31739)):
#0 0xcde9719c in ?? ()
No symbol table info available.
#1 0x7fffe090 in ?? ()
No symbol table info available.
#2
hanging again while trying ubuntu-desktop in rootstock, here a backtrace
from the hanging process
** Attachment added: gdb-qemu.txt
http://launchpadlibrarian.net/47935686/gdb-qemu.txt
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You
Hi
I can reproduce this each time by running netboot installer using the
versatile kernel:
#!/bin/sh
qemu-img create -f qcow2 sda.qcow2 16G
gdb --args qemu-system-arm -M versatilepb -m 256 -cpu cortex-a8 -kernel vmlinuz
-initrd initrd.gz -hda sda.qcow2 -append mem=256M
Here is the backtrace:
Hi
I can reproduce this each time by running netboot installer using the
versatile kernel:
#!/bin/sh
qemu-img create -f qcow2 sda.qcow2 16G
gdb --args qemu-system-arm -M versatilepb -m 256 -cpu cortex-a8 -kernel vmlinuz
-initrd initrd.gz -hda sda.qcow2 -append mem=256M
Here is the backtrace:
hmm, i dont see segfaults here, still just the plain hang
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In the host:
7720 Segmentation fault qemu-system-arm ${QEMUOPTS} ${ROOTDEV}
${SWAPDEV} -append ${APPEND} $QEMUFIFO 21
[ 1844.178068] qemu-system-arm[7720]: segfault at d07dca2c ip
d07dca2c sp 7fffabecc210 error 14
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apt/dpkg in qemu-system-arm hangs if a big task is
hmm, i dont see segfaults here, still just the plain hang
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In the host:
7720 Segmentation fault qemu-system-arm ${QEMUOPTS} ${ROOTDEV}
${SWAPDEV} -append ${APPEND} $QEMUFIFO 21
[ 1844.178068] qemu-system-arm[7720]: segfault at d07dca2c ip
d07dca2c sp 7fffabecc210 error 14
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apt/dpkg in qemu-system-arm hangs if a big task is
With the same procedure, I now get a segfault rather than a hang; this
would seem to support the userspace theory. Can anybody else confirm
the behaviour change?
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Segfault in the host or guest?
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With the same procedure, I now get a segfault rather than a hang; this
would seem to support the userspace theory. Can anybody else confirm
the behaviour change?
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https://bugs.launchpad.net/bugs/532733
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Segfault in the host or guest?
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** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: None = lucid-updates
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** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: None = lucid-updates
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-drive file=${IMAGENAME},aio=native,cache=none definately doesnt change
behavior, will try other combinations too.
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-drive file=${IMAGENAME},aio=threads,cache=writethrough doesnt change
anything either
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Writethrough is the default already; writeback might make a difference.
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same for -drive file=${IMAGENAME},aio=native,cache=writethrough, testing
writeback now
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-drive file=${IMAGENAME},aio=native,cache=writeback appears to work
faster overall but still hangs sadly ... trying the same with
aio=threads now but my hopes arent high
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as expected, same hang using -drive
file=${IMAGENAME},aio=threads,cache=writeback
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For comparison sake, I gave qemu access to a 2nd hardrive in my system
-hda /dev/sda1 same result as with using disk images..
Selecting previously deselected package libgnomekbd-common.
Unpacking libgnomekbd-common (from
.../libgnomekbd-common_2.30.0-0ubuntu2_all.deb) ...
Selecting previously
Thanks for testing ogra... Bummer.
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-drive file=${IMAGENAME},aio=native,cache=none definately doesnt change
behavior, will try other combinations too.
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-drive file=${IMAGENAME},aio=threads,cache=writethrough doesnt change
anything either
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Writethrough is the default already; writeback might make a difference.
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same for -drive file=${IMAGENAME},aio=native,cache=writethrough, testing
writeback now
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-drive file=${IMAGENAME},aio=native,cache=writeback appears to work
faster overall but still hangs sadly ... trying the same with
aio=threads now but my hopes arent high
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as expected, same hang using -drive
file=${IMAGENAME},aio=threads,cache=writeback
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For comparison sake, I gave qemu access to a 2nd hardrive in my system
-hda /dev/sda1 same result as with using disk images..
Selecting previously deselected package libgnomekbd-common.
Unpacking libgnomekbd-common (from
.../libgnomekbd-common_2.30.0-0ubuntu2_all.deb) ...
Selecting previously
Thanks for testing ogra... Bummer.
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Hi Ogra-
Can you try the aio=native,cache=off backing disk image options to qemu?
-drive file=foo.img,aio=native,cache=off
where foo.img is your backing disk image?
This should ensure that disk writes are synchronous, and *might* help
the issue. Can you try that and report back?
--
Alternatively, aio=threads is your other option. Perhaps try that too?
Also, perhaps play with the cache, which can be cache=none,
cache=writethrough, or cache=writeback.
(Sorry, in my last post, I wrote cache=off).
See:
* http://manpages.ubuntu.com/manpages/lucid/en/man1/qemu.1.html
--
Hi Ogra-
Can you try the aio=native,cache=off backing disk image options to qemu?
-drive file=foo.img,aio=native,cache=off
where foo.img is your backing disk image?
This should ensure that disk writes are synchronous, and *might* help
the issue. Can you try that and report back?
--
Alternatively, aio=threads is your other option. Perhaps try that too?
Also, perhaps play with the cache, which can be cache=none,
cache=writethrough, or cache=writeback.
(Sorry, in my last post, I wrote cache=off).
See:
* http://manpages.ubuntu.com/manpages/lucid/en/man1/qemu.1.html
--
dustin, the actual issue shows up under rootstock where we dont use SDL
at all, using plain qemu is just to easier reproduce the error,
rootstock reads/writes through a fifo via emulated serial console so
there is neither SDL nor any ui stuff involved.
it shows up for everyone and the hang
Opening an upstream task.
Anthony, any ideas?
** Also affects: qemu
Importance: Undecided
Status: New
** Changed in: qemu
Importance: Undecided = Medium
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug
dustin, the actual issue shows up under rootstock where we dont use SDL
at all, using plain qemu is just to easier reproduce the error,
rootstock reads/writes through a fifo via emulated serial console so
there is neither SDL nor any ui stuff involved.
it shows up for everyone and the hang
Opening an upstream task.
Anthony, any ideas?
** Also affects: qemu
Importance: Undecided
Status: New
** Changed in: qemu
Importance: Undecided = Medium
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug
** Changed in: qemu-kvm (Ubuntu Lucid)
Assignee: (unassigned) = Dustin Kirkland (kirkland)
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug notification because you are a member of Ubuntu
Server Team, which is
I see that Thierry has re-assigned this to me.
Note that this bug is marked Incomplete.
I need a way to reproduce this besides of apt-get in the guest, such
that I can report this upstream.
Note that I was able to dd from the entire guest disk to /dev/null
without a problem, which should have
** Changed in: qemu-kvm (Ubuntu Lucid)
Assignee: (unassigned) = Dustin Kirkland (kirkland)
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed
I see that Thierry has re-assigned this to me.
Note that this bug is marked Incomplete.
I need a way to reproduce this besides of apt-get in the guest, such
that I can report this upstream.
Note that I was able to dd from the entire guest disk to /dev/null
without a problem, which should have
** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: ubuntu-10.04-beta-2 = None
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to
** Changed in: qemu-kvm (Ubuntu Lucid)
Milestone: ubuntu-10.04-beta-2 = None
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
just to answer the above question, 3G disk and 256M RAM should be enough
for netbook
--
apt/dpkg in qemu-system-arm hangs if a big task is installed
https://bugs.launchpad.net/bugs/532733
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to
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