* [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB
[not found] <20150113143936.23767.65354.malonedeb@gac.canonical.com>
@ 2015-01-14 7:29 ` Neil Wilson
[not found] ` <20150113164029.5063.34589.malone@chaenomeles.canonical.com>
` (3 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: Neil Wilson @ 2015-01-14 7:29 UTC (permalink / raw)
To: qemu-devel
** Also affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1410288
Title:
qemu-img conversion to qcow2 hangs with blank image less than 100kiB
Status in QEMU:
New
Status in qemu package in Ubuntu:
Confirmed
Bug description:
If you try to convert a blank image to qcow2 that is less than 100kiB
in size then qemu-img hangs trying to seek to the end of the file.
$ truncate --size 102399 /tmp/temp
$ qemu-img convert -p -O qcow2 /tmp/temp /tmp/temp2.qcow2
I'm finding this on all versions of qemu-img v2.
strace shows a seek loop.
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-utils 2.0.0+dfsg-2ubuntu1.10
ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: i386
Date: Tue Jan 13 14:30:39 2015
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1410288/+subscriptions
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB
[not found] ` <20150113164029.5063.34589.malone@chaenomeles.canonical.com>
@ 2015-01-14 21:49 ` Serge Hallyn
0 siblings, 0 replies; 5+ messages in thread
From: Serge Hallyn @ 2015-01-14 21:49 UTC (permalink / raw)
To: qemu-devel
Does it also fail with the qemu from
https://launchpad.net/~ubuntu-virt/+archive/ubuntu/virt-daily-upstream ?
(This isn't quite git head, but it is qemu v2.2)
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1410288
Title:
qemu-img conversion to qcow2 hangs with blank image less than 100kiB
Status in QEMU:
New
Status in qemu package in Ubuntu:
Confirmed
Bug description:
If you try to convert a blank image to qcow2 that is less than 100kiB
in size then qemu-img hangs trying to seek to the end of the file.
$ truncate --size 102399 /tmp/temp
$ qemu-img convert -p -O qcow2 /tmp/temp /tmp/temp2.qcow2
I'm finding this on all versions of qemu-img v2.
strace shows a seek loop.
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-utils 2.0.0+dfsg-2ubuntu1.10
ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: i386
Date: Tue Jan 13 14:30:39 2015
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1410288/+subscriptions
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB
[not found] <20150113143936.23767.65354.malonedeb@gac.canonical.com>
2015-01-14 7:29 ` [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB Neil Wilson
[not found] ` <20150113164029.5063.34589.malone@chaenomeles.canonical.com>
@ 2015-01-14 21:55 ` Serge Hallyn
2016-01-12 22:31 ` pranith
2016-11-07 11:30 ` Robie Basak
4 siblings, 0 replies; 5+ messages in thread
From: Serge Hallyn @ 2015-01-14 21:55 UTC (permalink / raw)
To: qemu-devel
Went ahead and tested - it is in fact fixed in the v2.2 version.
** Changed in: qemu (Ubuntu)
Importance: Undecided => Medium
** Changed in: qemu (Ubuntu)
Status: Confirmed => Triaged
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1410288
Title:
qemu-img conversion to qcow2 hangs with blank image less than 100kiB
Status in QEMU:
New
Status in qemu package in Ubuntu:
Triaged
Bug description:
If you try to convert a blank image to qcow2 that is less than 100kiB
in size then qemu-img hangs trying to seek to the end of the file.
$ truncate --size 102399 /tmp/temp
$ qemu-img convert -p -O qcow2 /tmp/temp /tmp/temp2.qcow2
I'm finding this on all versions of qemu-img v2.
strace shows a seek loop.
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-utils 2.0.0+dfsg-2ubuntu1.10
ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: i386
Date: Tue Jan 13 14:30:39 2015
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1410288/+subscriptions
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB
[not found] <20150113143936.23767.65354.malonedeb@gac.canonical.com>
` (2 preceding siblings ...)
2015-01-14 21:55 ` Serge Hallyn
@ 2016-01-12 22:31 ` pranith
2016-11-07 11:30 ` Robie Basak
4 siblings, 0 replies; 5+ messages in thread
From: pranith @ 2016-01-12 22:31 UTC (permalink / raw)
To: qemu-devel
** Changed in: qemu
Status: New => Fix Released
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1410288
Title:
qemu-img conversion to qcow2 hangs with blank image less than 100kiB
Status in QEMU:
Fix Released
Status in qemu package in Ubuntu:
Triaged
Bug description:
If you try to convert a blank image to qcow2 that is less than 100kiB
in size then qemu-img hangs trying to seek to the end of the file.
$ truncate --size 102399 /tmp/temp
$ qemu-img convert -p -O qcow2 /tmp/temp /tmp/temp2.qcow2
I'm finding this on all versions of qemu-img v2.
strace shows a seek loop.
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-utils 2.0.0+dfsg-2ubuntu1.10
ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: i386
Date: Tue Jan 13 14:30:39 2015
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1410288/+subscriptions
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB
[not found] <20150113143936.23767.65354.malonedeb@gac.canonical.com>
` (3 preceding siblings ...)
2016-01-12 22:31 ` pranith
@ 2016-11-07 11:30 ` Robie Basak
4 siblings, 0 replies; 5+ messages in thread
From: Robie Basak @ 2016-11-07 11:30 UTC (permalink / raw)
To: qemu-devel
qemu is 2.5 in 16.04 and 2.6.1 in Zesty, so this is presumably Fix
Released now. If incorrect, please explain and reopen.
** Changed in: qemu (Ubuntu)
Status: Triaged => Fix Released
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1410288
Title:
qemu-img conversion to qcow2 hangs with blank image less than 100kiB
Status in QEMU:
Fix Released
Status in qemu package in Ubuntu:
Fix Released
Bug description:
If you try to convert a blank image to qcow2 that is less than 100kiB
in size then qemu-img hangs trying to seek to the end of the file.
$ truncate --size 102399 /tmp/temp
$ qemu-img convert -p -O qcow2 /tmp/temp /tmp/temp2.qcow2
I'm finding this on all versions of qemu-img v2.
strace shows a seek loop.
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ioctl(6, FS_IOC_FIEMAP, 0xb5e68dc4) = 0
_llseek(6, 0, [100000], SEEK_END) = 0
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-utils 2.0.0+dfsg-2ubuntu1.10
ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic i686
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: i386
Date: Tue Jan 13 14:30:39 2015
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1410288/+subscriptions
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-11-07 11:50 UTC | newest]
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[not found] <20150113143936.23767.65354.malonedeb@gac.canonical.com>
2015-01-14 7:29 ` [Qemu-devel] [Bug 1410288] Re: qemu-img conversion to qcow2 hangs with blank image less than 100kiB Neil Wilson
[not found] ` <20150113164029.5063.34589.malone@chaenomeles.canonical.com>
2015-01-14 21:49 ` Serge Hallyn
2015-01-14 21:55 ` Serge Hallyn
2016-01-12 22:31 ` pranith
2016-11-07 11:30 ` Robie Basak
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