[Wayland-bugs] [Bug 82287] New: weston-smoke: Valgrind invalid reads

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Aug 7 01:59:13 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=82287

          Priority: medium
            Bug ID: 82287
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: weston-smoke: Valgrind invalid reads
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: francisbinns at gmail.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: weston
           Product: Wayland

Created attachment 104209
  --> https://bugs.freedesktop.org/attachment.cgi?id=104209&action=edit
weston-smoke valgrind output

When running the weston-smoke client application under valgrind and interacting
with the app, i.e. waving the cursor over it, there are a number of invalid
reads (see attached valgrind-weston-smoke.txt). When running a debug build this
presents itself as invalid rendering in that there are occasional flashes of a
few white pixels that immediately disappear. As far as I can tell from the git
history, this bug has been around since the client was added.

I've attached a patch (0001-smoke-fix-valgrind-invalid-read-errors.patch) that
fixes the issue but maybe there's a better fix.

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