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From: Jan Heidbrink <1721788@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1721788] Re: Failed to get shared "write" lock with 'qemu-img info'
Date: Fri, 23 Apr 2021 13:43:25 -0000	[thread overview]
Message-ID: <161918540561.31655.16551856642503337164.malone@soybean.canonical.com> (raw)
In-Reply-To: 150729895903.22243.5921581973131047310.malonedeb@gac.canonical.com

Ah ok, I think this bug can be closed then.

** Changed in: qemu
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1721788

Title:
  Failed to get shared "write" lock with 'qemu-img info'

Status in QEMU:
  Fix Released

Bug description:
  When running 'qemu-img info test.qcow2' while test.qcow2 is currently
  used by a Qemu process, I get the error

  qemu-img: Could not open 'test.qcow2': Failed to get shared "write"
  lock.

  Why does displaying information about a disk image need a write lock
  for the file?

  Steps to reproduce:

  qemu-img create -f qcow2 test.qcow2 10M
  qemu-system-x86_64 -nographic -drive file=test.qcow2
  qemu-img info test.qcow2

  The above was tested with Qemu version 2.10.0.

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  parent reply	other threads:[~2021-04-23 13:52 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-06 14:09 [Qemu-devel] [Bug 1721788] [NEW] Failed to get shared "write" lock with 'qemu-img info' Jan Heidbrink
2017-10-06 14:28 ` [Qemu-devel] [Bug 1721788] " Daniel Berrange
2017-10-06 14:28 ` [Qemu-devel] [Bug 1721788] [NEW] " Eric Blake
2017-10-06 14:30 ` [Qemu-devel] [Bug 1721788] " Daniel Berrange
2017-10-11 20:46   ` Liang Yan
2021-04-22  5:29 ` Thomas Huth
2021-04-22  8:14 ` Jan Heidbrink
2021-04-22 11:05 ` Max Reitz
2021-04-23 13:43 ` Jan Heidbrink [this message]
2022-04-19 14:35 ` Kaitlyn Lew

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