[Expired for qemu (Ubuntu) because there has been no activity for 60
days.]
** Changed in: qemu (Ubuntu)
Status: Incomplete => Expired
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[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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Title:
kvm hangs
Could you please check with the latest version of QEMU (v2.12), and make
sure that you're using SDL2 instead of SDL1.2 (since the latter is going
to be removed soon)?
** Changed in: qemu (Ubuntu)
Status: Confirmed => Incomplete
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It seems the issue is sdl related to change in sdl window size. If I
started qemu and set the monitor (and serial & parallel) to the same VC
size, it works much better. Instead of hangs on a 2-3 switches, it may
hang after rapid switch of more than 10 times. Btw, it can hang in any
windows, i.e.
Still happened in qemu 2.5.0 on Ubuntu 16.04, it's random but you can
only switch between console, monitor, serial, parallel several times,
then it hangs.
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Can you still reproduce this issue with the latest version of QEMU, or
could we close this ticket nowadays?
** Changed in: qemu
Status: New => Incomplete
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Interestingly, after i lock the qemu console up with the xdo script,
the screen is always locked in ctrl-alt-2, that is, the monitor, not the
vm display,
hitting ctrl-alt-1 never returns it to the vm display,
but if i continue the xdo script running, it sometimes does return to
the vm display,
Interestingly, after i lock the qemu console up with the xdo script,
the screen is always locked in ctrl-alt-2, that is, the monitor, not the
vm display,
hitting ctrl-alt-1 never returns it to the vm display,
but if i continue the xdo script running, it sometimes does return to
the vm display,
Hi Serge,
I'm running on pure amd64 too so the problem is not arch-specific.
The simplest way to recreate:
$ kvm -cdrom /usr/lib/memtest86+/memtest86+.iso -m 512
Just hold down control+alt and frantically toggle the monitor using the
'2' and '1'. Within a couple of seconds it hangs.
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Sadly a bisect pointed to the unlikely commit 7a239e46.
Upstream git head is still affected.
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Title:
kvm hangs occasionally when
Maddeningly, I've not yet been able to reproduce this by doing
for i in `seq 1 100`; do
xdotool search --name qemu keydown ctrl+alt+2
xdotool search --name qemu keyup ctrl+alt+2
xdotool search --name qemu keydown ctrl+alt+1
xdotool search --name qemu keyup
A-ha, the reason is that this only triggers if the qemu window is
focused. Running the script while focusing does reproduce (and do other
weird things).
So perhaps this is happening in sdl_grab_start(), which exits early if
the app is not focused?
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Sadly a bisect pointed to the unlikely commit 7a239e46.
Upstream git head is still affected.
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Title:
kvm hangs occasionally when switching out
Maddeningly, I've not yet been able to reproduce this by doing
for i in `seq 1 100`; do
xdotool search --name qemu keydown ctrl+alt+2
xdotool search --name qemu keyup ctrl+alt+2
xdotool search --name qemu keydown ctrl+alt+1
xdotool search --name qemu keyup
A-ha, the reason is that this only triggers if the qemu window is
focused. Running the script while focusing does reproduce (and do other
weird things).
So perhaps this is happening in sdl_grab_start(), which exits early if
the app is not focused?
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Hi Serge,
I'm running on pure amd64 too so the problem is not arch-specific.
The simplest way to recreate:
$ kvm -cdrom /usr/lib/memtest86+/memtest86+.iso -m 512
Just hold down control+alt and frantically toggle the monitor using the
'2' and '1'. Within a couple of seconds it hangs.
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Sorry - ignore that. However, problem persists on a separate fully-
updated amd64 trusty system running kvm version 2.0.0~rc1+dfsg-0ubuntu3.
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I've been trying to reproduce with current trusty, but on amd64, with no
success.
Which guest were you using? Can you reproduce it just booting a desktop
iso with SDL graphics, i.e.
kvm -cdrom ubuntu-13.10-desktop-$arch.iso -m 512
?
(Will test on i386. If that succeeds then I can bisect.)
Sorry - ignore that. However, problem persists on a separate fully-
updated amd64 trusty system running kvm version 2.0.0~rc1+dfsg-0ubuntu3.
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I've been trying to reproduce with current trusty, but on amd64, with no
success.
Which guest were you using? Can you reproduce it just booting a desktop
iso with SDL graphics, i.e.
kvm -cdrom ubuntu-13.10-desktop-$arch.iso -m 512
?
(Will test on i386. If that succeeds then I can bisect.)
That is an odd looking list - why is qemu-system-x86 still on 1.7.0,
while qemu-system-common is on 2.0?
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Title:
kvm hangs
That is an odd looking list - why is qemu-system-x86 still on 1.7.0,
while qemu-system-common is on 2.0?
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Title:
kvm hangs occasionally when
HI Serge - yes, problem is still there with the ppa versions:
$ dpkg -l|egrep kvm|qemu
ii ipxe-qemu
1.0.0+git-2013.c3d1e78-2ubuntu1 all PXE boot
firmware - ROM images for qemu
ii kvm-ipxe
HI Serge - yes, problem is still there with the ppa versions:
$ dpkg -l|egrep kvm|qemu
ii ipxe-qemu
1.0.0+git-2013.c3d1e78-2ubuntu1 all PXE boot
firmware - ROM images for qemu
ii kvm-ipxe
Hi James,
just a quick check - do you get this with the qemu package in ppa
:ubuntu-virt/candidate?
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Title:
kvm hangs
Hi James,
just a quick check - do you get this with the qemu package in ppa
:ubuntu-virt/candidate?
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Title:
kvm hangs occasionally when
Hi Serge,
Yes, I get the hang on upstream too (HEAD
e157b8fdd412d48eacfbb8c67d3d58780154faa3).
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Title:
kvm hangs occasionally
** Also affects: qemu
Importance: Undecided
Status: New
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Title:
kvm hangs occasionally when switching out of the qemu
Thanks, James. I'll aim to test on some older releases and bisect if
possible.
If you have a chance to test on precise, raring, and saucy, or to
actually bisect in the upstream git tree, please let me know.
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Hi Serge,
Yes, I get the hang on upstream too (HEAD
e157b8fdd412d48eacfbb8c67d3d58780154faa3).
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Title:
kvm hangs occasionally when switching
** Also affects: qemu
Importance: Undecided
Status: New
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Title:
kvm hangs occasionally when switching out of the qemu console
To
Thanks, James. I'll aim to test on some older releases and bisect if
possible.
If you have a chance to test on precise, raring, and saucy, or to
actually bisect in the upstream git tree, please let me know.
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Hi Serge,
1.7.0+dfsg-2ubuntu2 still exhibits the problem I'm afraid.
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Title:
kvm hangs occasionally when switching out of the
Hi Serge,
1.7.0+dfsg-2ubuntu2 still exhibits the problem I'm afraid.
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Title:
kvm hangs occasionally when switching out of the qemu console
To
That's surprising. Can you test it with upstream qemu?
(
git clone git://git.qemu.org/qemu.git
cd qemu
./configure --target-list=x86_64-softmmu
make
cd x86_64-softmmu
./qemu-system-x86_64 --enable-kvm qemu-args
)
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Hi,
1.7 is currently building trusty. Could you please test with it and
make sure that this bug is fixed with that version?
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Hi,
1.7 is currently building trusty. Could you please test with it and
make sure that this bug is fixed with that version?
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Title:
kvm hangs
I never saw the issue with saucy. Downgrading to 1.5.0+dfsg-3ubuntu5.1
certainly appears to have resolved the issue for me, so it's looking
like a regression introduced by 1.6.0+dfsg-2ubuntu4.
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Thanks, James. I suspect this is due to the arm64-user-static patchset
i added. As mjt has pointed out it has a lot of cruft in it. I'll have
to drop it and try to come up with a smaller patchset.
** Changed in: qemu (Ubuntu)
Status: New = Confirmed
** Changed in: qemu (Ubuntu)
I never saw the issue with saucy. Downgrading to 1.5.0+dfsg-3ubuntu5.1
certainly appears to have resolved the issue for me, so it's looking
like a regression introduced by 1.6.0+dfsg-2ubuntu4.
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Thanks, James. I suspect this is due to the arm64-user-static patchset
i added. As mjt has pointed out it has a lot of cruft in it. I'll have
to drop it and try to come up with a smaller patchset.
** Changed in: qemu (Ubuntu)
Status: New = Confirmed
** Changed in: qemu (Ubuntu)
... as if by magic it hung again :) I managed to trigger it by toggling
the following two key combos rapidly starting from within the qemu
console:
ctrl-alt-1 # switch to console (actually, we're already there, but ...)
ctrl-alt-2 # switch out of console
** Attachment added: kvm-strace.log.gz
Is this new to this version?
Can you reproduce it with either saucy's kvm, or with the previous
version published in trusty?
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... as if by magic it hung again :) I managed to trigger it by toggling
the following two key combos rapidly starting from within the qemu
console:
ctrl-alt-1 # switch to console (actually, we're already there, but ...)
ctrl-alt-2 # switch out of console
** Attachment added: kvm-strace.log.gz
Is this new to this version?
Can you reproduce it with either saucy's kvm, or with the previous
version published in trusty?
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Title:
kvm hangs
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