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https://bugs.launchpad.net/bugs/543478

Title:
  qemus pmemsave doesn't accept "/" in filename

Status in QEMU:
  Invalid
Status in “qemu-kvm” package in Ubuntu:
  Expired

Bug description:
  Binary package hint: qemu-kvm

  Please see my conversation with qemu:

  (qemu) pmemsave 
  unexpected end of expression
  (qemu) help pmemsave 
  pmemsave addr size file -- save to disk physical memory dump starting at 
'addr' of size 'size'
  (qemu) pmemsave 0 512M /tmp/qemu.mem
  pmemsave: extraneous characters at the end of line
  (qemu) pmemsave 0 512 /tmp/qemu.mem
  invalid char in expression
  (qemu) pmemsave 0 512 /tmp/qemu
  invalid char in expression
  (qemu) pmemsave 0 512 qemu.mem
  (qemu) pmemsave 0 512M qemu.mem
  pmemsave: extraneous characters at the end of line


  Let me comment on each one of those:
  (qemu) pmemsave 
  unexpected end of expression

  I expected some sort of hint as to where to get more information.
  Maybe just a "Type ``help pmemsave'' to get syntax information" would
  be sufficient.

  
  (qemu) help pmemsave 
  pmemsave addr size file -- save to disk physical memory dump starting at 
'addr' of size 'size'

  Nice. But an example would be nice. My proposal: "I.e.: pmemsave 0 1G
  /tmp/qemu.mem"

  
  (qemu) pmemsave 0 512M /tmp/qemu.mem
  pmemsave: extraneous characters at the end of line

  eh. Would be nice if it told me *which* character was "extraneous" and
  what "extraneous" means. My proposal: "Couldn't parse character at
  position 23, please see help pmemsave for an example".

  
  (qemu) pmemsave 0 512 /tmp/qemu.mem
  invalid char in expression

  Hm. Interesting. Again, would be nice if it printed me the offending
  character. My proposal: "Could not parse character at position 23,
  please see help pmemsave for an example".

  
  (qemu) pmemsave 0 512 /tmp/qemu
  invalid char in expression

  Now I got rid of almost everything but it still doesn't work.

  
  (qemu) pmemsave 0 512 qemu.mem

  aha! No slashes?! Seriously?

  (qemu) pmemsave 0 512M qemu.mem
  pmemsave: extraneous characters at the end of line

  And no "M" or "G" modifiers? If I want to dump 2GB then I'd have to
  calculate the number in bytes and paste that long string. I expected
  qemu to be able to parse the K, M, G suffixes.

  Also, I'm wondering why it doesn't offer to dump all memory.

  ProblemType: Bug
  Architecture: amd64
  CurrentDmesg:
   [150870.676062] kvm_intel: Unknown symbol kvm_vcpu_on_spin
   [150947.222923] cron[24260]: segfault at 0 ip (null) sp 00007fffe865eed8 
error 14 in cron[400000+9000]
   [150947.224187] cron[24261]: segfault at 0 ip (null) sp 00007fffe865eed8 
error 14 in cron[400000+9000]
  Date: Sun Mar 21 15:03:13 2010
  DistroRelease: Ubuntu 9.10
  KvmCmdLine:
   UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
   muelli   23807 23806 13 239738 228464 0 14:54 pts/8    00:01:22 /usr/bin/kvm 
-S -M pc -m 512 -smp 1 -name vanilla_ubuntu -monitor stdio -boot c -drive 
file=/home/muelli/qemu/ubuntu8.10/ubuntu.img,if=ide,index=0,boot=on -drive 
file=,if=ide,media=cdrom,index=2 -net 
nic,model=rtl8139,macaddr=f0:00:BA:12:34:56 -net 
user,hostfwd=tcp::2223-:22,smb=/tmp/share -serial pty -snapshot
  MachineType: LENOVO 766636G
  Package: kvm 1:84+dfsg-0ubuntu16+0.11.0+0ubuntu6.3
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: root=/dev/mapper/cryptroot 
source=UUID=9c3d5596-27c6-4fd5-bfcd-fa8eef6f1230 ro vdso32=0 quiet splash  
crashkernel=384M-2G:64M,2G-:128M
  ProcVersionSignature: Ubuntu 2.6.32-16.24-generic
  SourcePackage: qemu-kvm
  Uname: Linux 2.6.32-16-generic x86_64
  dmi.bios.date: 03/12/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7NETC0WW (2.20 )
  dmi.board.name: 766636G
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr7NETC0WW(2.20):bd03/12/2009:svnLENOVO:pn766636G:pvrThinkPadX61:rvnLENOVO:rn766636G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 766636G
  dmi.product.version: ThinkPad X61
  dmi.sys.vendor: LENOVO