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[Qemu-devel] [Bug 1470536] [NEW] qemu-img incorrectly prints "qemu-img:
From: |
Richard Jones |
Subject: |
[Qemu-devel] [Bug 1470536] [NEW] qemu-img incorrectly prints "qemu-img: Host floppy pass-through is deprecated" |
Date: |
Wed, 01 Jul 2015 14:33:05 -0000 |
Public bug reported:
qemu-img incorrectly prints this warning when you use /dev/fd/<NN> to
pass in file descriptors. A simple way to demonstrate this uses bash
process substitution, so the following will only work if you are using
bash as your shell:
$ qemu-img info <( cat /dev/null )
qemu-img: Host floppy pass-through is deprecated
Support for it will be removed in a future release.
qemu-img: Could not open '/dev/fd/63': Could not refresh total sector count:
Illegal seek
The root cause is a bug in block/raw-posix.c:floppy_probe_device() where
it thinks anything starting with /dev/fd is a floppy drive, which is not
the case here:
http://git.qemu.org/?p=qemu.git;a=blob;f=block/raw-
posix.c;h=cbe6574bf4da90a124436a40422dce3667da71e6;hb=HEAD#l2425
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1470536
Title:
qemu-img incorrectly prints "qemu-img: Host floppy pass-through is
deprecated"
Status in QEMU:
New
Bug description:
qemu-img incorrectly prints this warning when you use /dev/fd/<NN> to
pass in file descriptors. A simple way to demonstrate this uses bash
process substitution, so the following will only work if you are using
bash as your shell:
$ qemu-img info <( cat /dev/null )
qemu-img: Host floppy pass-through is deprecated
Support for it will be removed in a future release.
qemu-img: Could not open '/dev/fd/63': Could not refresh total sector count:
Illegal seek
The root cause is a bug in block/raw-posix.c:floppy_probe_device()
where it thinks anything starting with /dev/fd is a floppy drive,
which is not the case here:
http://git.qemu.org/?p=qemu.git;a=blob;f=block/raw-
posix.c;h=cbe6574bf4da90a124436a40422dce3667da71e6;hb=HEAD#l2425
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1470536/+subscriptions
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