[Qemu-devel] [Bug 1269606] Re: curl driver (https) always says "No such

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[Qemu-devel] [Bug 1269606] Re: curl driver (https) always says "No such

From:	Richard Jones
Subject:	[Qemu-devel] [Bug 1269606] Re: curl driver (https) always says "No such file or directory"
Date:	Wed, 24 Jan 2018 13:25:24 -0000
I restored the original description.  Please report a new bug.

** Description changed:

+ 
  I have a remote server, on which an http disk image definitely exists.
- However the qemu curl block driver cannot open it.  It always gives the
+ However the qemu curl block driver cannot open it. It always gives the
  bogus error:
  
  CURL: Error opening file: Connection time-out
  qemu-system-x86_64: -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none:
 could not open disk image http://onuma/scratch/cirros-0.3.1-x86_64-disk.img: 
Could not open backing file: Could not open 
'http://onuma/scratch/cirros-0.3.1-x86_64-disk.img': No such file or directory
  
  On the server, I can see from the logs that qemu/curl is opening it:
  
  192.168.0.175 - - [15/Jan/2014:21:25:37 +0000] "HEAD 
/scratch/cirros-0.3.1-x86_64-disk.img HTTP/1.1" 200 - "-" "-"
  192.168.0.175 - - [15/Jan/2014:21:25:37 +0000] "GET 
/scratch/cirros-0.3.1-x86_64-disk.img HTTP/1.1" 206 264192 "-" "-"
  
  I am using qemu & curl from git today.
  
  curl: curl-7_34_0-177-gc7a76bb
  qemu: for-anthony-839-g1cf892c
  
  Here is the full command I am using:
  
- 0622001a98105b80ecfad39dbf0b84c0ed71e12bb603a81a2b9b52e19ca7ae80E
+ http_proxy= \
+ LD_LIBRARY_PATH=/home/rjones/d/curl/lib/.libs \
+ LIBGUESTFS_BACKEND=direct \
+ LIBGUESTFS_HV=/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 \
+ guestfish -v --ro -a http://onuma/scratch/cirros-0.3.1-x86_64-disk.img run
+ 
+ The full output (includes qemu command itself) is:
+ 
+ libguestfs: launch: program=guestfish
+ libguestfs: launch: version=1.25.20fedora=21,release=1.fc21,libvirt
+ libguestfs: launch: backend registered: unix
+ libguestfs: launch: backend registered: uml
+ libguestfs: launch: backend registered: libvirt
+ libguestfs: launch: backend registered: direct
+ libguestfs: launch: backend=direct
+ libguestfs: launch: tmpdir=/tmp/libguestfsoQctgE
+ libguestfs: launch: umask=0002
+ libguestfs: launch: euid=1000
+ libguestfs: command: run: /usr/bin/supermin-helper
+ libguestfs: command: run: \ --verbose
+ libguestfs: command: run: \ -f checksum
+ libguestfs: command: run: \ --host-cpu x86_64
+ libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d
+ supermin helper [00000ms] whitelist = (not specified)
+ supermin helper [00000ms] host_cpu = x86_64
+ supermin helper [00000ms] dtb_wildcard = (not specified)
+ supermin helper [00000ms] inputs:
+ supermin helper [00000ms] inputs[0] = /usr/lib64/guestfs/supermin.d
+ supermin helper [00000ms] outputs:
+ supermin helper [00000ms] kernel = (none)
+ supermin helper [00000ms] dtb = (none)
+ supermin helper [00000ms] initrd = (none)
+ supermin helper [00000ms] appliance = (none)
+ checking modpath /lib/modules/3.12.5-302.fc20.x86_64 is a directory
+ checking modpath /lib/modules/3.11.9-200.fc19.x86_64 is a directory
+ checking modpath /lib/modules/3.11.10-200.fc19.x86_64 is a directory
+ checking modpath /lib/modules/3.11.4-201.fc19.x86_64 is a directory
+ picked kernel vmlinuz-3.12.5-302.fc20.x86_64
+ supermin helper [00000ms] finished creating kernel
+ supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d
+ supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/base.img.gz
+ supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/daemon.img.gz
+ supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/hostfiles
+ supermin helper [00041ms] visiting /usr/lib64/guestfs/supermin.d/init.img
+ supermin helper [00041ms] visiting 
/usr/lib64/guestfs/supermin.d/udev-rules.img
+ supermin helper [00041ms] adding kernel modules
+ supermin helper [00064ms] finished creating appliance
+ libguestfs: checksum of existing appliance: 
2017df18eaeee7c45b87139c9bd80be2216d655a1513322c47f58a7a3668cd1f
+ libguestfs: [00066ms] begin testing qemu features
+ libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
+ libguestfs: command: run: \ -display none
+ libguestfs: command: run: \ -help
+ libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
+ libguestfs: command: run: \ -display none
+ libguestfs: command: run: \ -version
+ libguestfs: qemu version 1.7
+ libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
+ libguestfs: command: run: \ -display none
+ libguestfs: command: run: \ -machine accel=kvm:tcg
+ libguestfs: command: run: \ -device ?
+ libguestfs: [00127ms] finished testing qemu features
+ [00128ms] /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 \
+     -global virtio-blk-pci.scsi=off \
+     -nodefconfig \
+     -enable-fips \
+     -nodefaults \
+     -display none \
+     -machine accel=kvm:tcg \
+     -cpu host,+kvmclock \
+     -m 500 \
+     -no-reboot \
+     -no-hpet \
+     -kernel /var/tmp/.guestfs-1000/kernel.19645 \
+     -initrd /var/tmp/.guestfs-1000/initrd.19645 \
+     -device virtio-scsi-pci,id=scsi \
+     -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none
 \
+     -device scsi-hd,drive=hd0 \
+     -drive 
file=/var/tmp/.guestfs-1000/root.19645,snapshot=on,id=appliance,cache=unsafe,if=none
 \
+     -device scsi-hd,drive=appliance \
+     -device virtio-serial-pci \
+     -serial stdio \
+     -device sga \
+     -chardev socket,path=/tmp/libguestfsoQctgE/guestfsd.sock,id=channel0 \
+     -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
+     -append 'panic=1 console=ttyS0 udevtimeout=600 no_timer_check acpi=off 
printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 
TERM=xterm-256color'
+ CURL: Error opening file: Connection time-out
+ qemu-system-x86_64: -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none:
 could not open disk image http://onuma/scratch/cirros-0.3.1-x86_64-disk.img: 
Could not open image: Invalid argument
+ libguestfs: error: appliance closed the connection unexpectedly, see earlier 
error messages
+ libguestfs: child_cleanup: 0x7f07bf6599b0: child process died
+ libguestfs: sending SIGTERM to process 19654
+ libguestfs: error: /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 
exited with error status 1, see debug messages above
+ libguestfs: error: guestfs_launch failed, see earlier error messages
+ libguestfs: closing guestfs handle 0x7f07bf6599b0 (state 0)
+ libguestfs: command: run: rm
+ libguestfs: command: run: \ -rf /tmp/libguestfsoQctgE

** Summary changed:

- curl driver (https) always says "No such file or directory"
+ curl driver (http) always says "No such file or directory"

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https://bugs.launchpad.net/bugs/1269606

Title:
  curl driver (http) always says "No such file or directory"

Status in QEMU:
  New

Bug description:

  I have a remote server, on which an http disk image definitely exists.
  However the qemu curl block driver cannot open it. It always gives the
  bogus error:

  CURL: Error opening file: Connection time-out
  qemu-system-x86_64: -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none:
 could not open disk image http://onuma/scratch/cirros-0.3.1-x86_64-disk.img: 
Could not open backing file: Could not open 
'http://onuma/scratch/cirros-0.3.1-x86_64-disk.img': No such file or directory

  On the server, I can see from the logs that qemu/curl is opening it:

  192.168.0.175 - - [15/Jan/2014:21:25:37 +0000] "HEAD 
/scratch/cirros-0.3.1-x86_64-disk.img HTTP/1.1" 200 - "-" "-"
  192.168.0.175 - - [15/Jan/2014:21:25:37 +0000] "GET 
/scratch/cirros-0.3.1-x86_64-disk.img HTTP/1.1" 206 264192 "-" "-"

  I am using qemu & curl from git today.

  curl: curl-7_34_0-177-gc7a76bb
  qemu: for-anthony-839-g1cf892c

  Here is the full command I am using:

  http_proxy= \
  LD_LIBRARY_PATH=/home/rjones/d/curl/lib/.libs \
  LIBGUESTFS_BACKEND=direct \
  LIBGUESTFS_HV=/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 \
  guestfish -v --ro -a http://onuma/scratch/cirros-0.3.1-x86_64-disk.img run

  The full output (includes qemu command itself) is:

  libguestfs: launch: program=guestfish
  libguestfs: launch: version=1.25.20fedora=21,release=1.fc21,libvirt
  libguestfs: launch: backend registered: unix
  libguestfs: launch: backend registered: uml
  libguestfs: launch: backend registered: libvirt
  libguestfs: launch: backend registered: direct
  libguestfs: launch: backend=direct
  libguestfs: launch: tmpdir=/tmp/libguestfsoQctgE
  libguestfs: launch: umask=0002
  libguestfs: launch: euid=1000
  libguestfs: command: run: /usr/bin/supermin-helper
  libguestfs: command: run: \ --verbose
  libguestfs: command: run: \ -f checksum
  libguestfs: command: run: \ --host-cpu x86_64
  libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d
  supermin helper [00000ms] whitelist = (not specified)
  supermin helper [00000ms] host_cpu = x86_64
  supermin helper [00000ms] dtb_wildcard = (not specified)
  supermin helper [00000ms] inputs:
  supermin helper [00000ms] inputs[0] = /usr/lib64/guestfs/supermin.d
  supermin helper [00000ms] outputs:
  supermin helper [00000ms] kernel = (none)
  supermin helper [00000ms] dtb = (none)
  supermin helper [00000ms] initrd = (none)
  supermin helper [00000ms] appliance = (none)
  checking modpath /lib/modules/3.12.5-302.fc20.x86_64 is a directory
  checking modpath /lib/modules/3.11.9-200.fc19.x86_64 is a directory
  checking modpath /lib/modules/3.11.10-200.fc19.x86_64 is a directory
  checking modpath /lib/modules/3.11.4-201.fc19.x86_64 is a directory
  picked kernel vmlinuz-3.12.5-302.fc20.x86_64
  supermin helper [00000ms] finished creating kernel
  supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d
  supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/base.img.gz
  supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/daemon.img.gz
  supermin helper [00000ms] visiting /usr/lib64/guestfs/supermin.d/hostfiles
  supermin helper [00041ms] visiting /usr/lib64/guestfs/supermin.d/init.img
  supermin helper [00041ms] visiting 
/usr/lib64/guestfs/supermin.d/udev-rules.img
  supermin helper [00041ms] adding kernel modules
  supermin helper [00064ms] finished creating appliance
  libguestfs: checksum of existing appliance: 
2017df18eaeee7c45b87139c9bd80be2216d655a1513322c47f58a7a3668cd1f
  libguestfs: [00066ms] begin testing qemu features
  libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
  libguestfs: command: run: \ -display none
  libguestfs: command: run: \ -help
  libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
  libguestfs: command: run: \ -display none
  libguestfs: command: run: \ -version
  libguestfs: qemu version 1.7
  libguestfs: command: run: 
/home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64
  libguestfs: command: run: \ -display none
  libguestfs: command: run: \ -machine accel=kvm:tcg
  libguestfs: command: run: \ -device ?
  libguestfs: [00127ms] finished testing qemu features
  [00128ms] /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 \
      -global virtio-blk-pci.scsi=off \
      -nodefconfig \
      -enable-fips \
      -nodefaults \
      -display none \
      -machine accel=kvm:tcg \
      -cpu host,+kvmclock \
      -m 500 \
      -no-reboot \
      -no-hpet \
      -kernel /var/tmp/.guestfs-1000/kernel.19645 \
      -initrd /var/tmp/.guestfs-1000/initrd.19645 \
      -device virtio-scsi-pci,id=scsi \
      -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none
 \
      -device scsi-hd,drive=hd0 \
      -drive 
file=/var/tmp/.guestfs-1000/root.19645,snapshot=on,id=appliance,cache=unsafe,if=none
 \
      -device scsi-hd,drive=appliance \
      -device virtio-serial-pci \
      -serial stdio \
      -device sga \
      -chardev socket,path=/tmp/libguestfsoQctgE/guestfsd.sock,id=channel0 \
      -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
      -append 'panic=1 console=ttyS0 udevtimeout=600 no_timer_check acpi=off 
printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 
TERM=xterm-256color'
  CURL: Error opening file: Connection time-out
  qemu-system-x86_64: -drive 
file=http://onuma/scratch/cirros-0.3.1-x86_64-disk.img,snapshot=on,cache=writeback,id=hd0,if=none:
 could not open disk image http://onuma/scratch/cirros-0.3.1-x86_64-disk.img: 
Could not open image: Invalid argument
  libguestfs: error: appliance closed the connection unexpectedly, see earlier 
error messages
  libguestfs: child_cleanup: 0x7f07bf6599b0: child process died
  libguestfs: sending SIGTERM to process 19654
  libguestfs: error: /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 
exited with error status 1, see debug messages above
  libguestfs: error: guestfs_launch failed, see earlier error messages
  libguestfs: closing guestfs handle 0x7f07bf6599b0 (state 0)
  libguestfs: command: run: rm
  libguestfs: command: run: \ -rf /tmp/libguestfsoQctgE

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