[Qemu-devel] [Bug 1603785] Re: trace_usb_port_attach prints junk data

[Peter Maydell]

This bug is still present in current head of git; I've just sent a
patch: http://patchwork.ozlabs.org/patch/1068196/


** Changed in: qemu
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1603785

Title:
  trace_usb_port_attach prints junk data

Status in QEMU:
  In Progress

Bug description:
  Running qemu with tracing (-D ~/qemu_trace -d trace:\*) will result in
  a trace file with unprintable characters.

  example: usb_port_attach bus 0, port 1, devspeed <90>l<DB>.<D8>U,
  portspeed full+high

  The problem is in hw/usb/bus.c usb_mask_to_str. If speedmask doesn't
  match any of the defined speed nothing is written to *dest and
  uninitialized data is printed to the log.

  This happens with a real usb device that is forwarded into the
  machine.

  My qemu version is 2.6.0 but it looks like the problem exists in
  latest git also.

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