[Bug 36124] New: kernel32/change.ok test shows a lot of invalid read/writes

https://bugs.winehq.org/show_bug.cgi?id=36124

Bug ID: 36124
           Summary: kernel32/change.ok test shows a lot of invalid
                    read/writes
           Product: Wine
           Version: 1.7.17
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, testcase
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 48294
  --> https://bugs.winehq.org/attachment.cgi?id=48294
valgrind log

E.g.,:
==22906== Thread 2:
==22906== Invalid write of size 4
==22906==    at 0x7BC8623F: usr1_handler (signal_i386.c:2157)
==22906==    by 0x4EA839CF: ??? (in /usr/lib/libpthread-2.18.so)
==22906==  Address 0x599b56c is on thread 1's stack
==22906==

==22906== Invalid read of size 4
==22906==    at 0x7BC8390C: init_handler (signal_i386.c:980)
==22906==    by 0x7BC86257: usr1_handler (signal_i386.c:2157)
==22906==    by 0x4EA839CF: ??? (in /usr/lib/libpthread-2.18.so)
==22906==  Address 0x599b564 is on thread 1's stack
==22906==

==22906== Invalid read of size 2
==22906==    at 0x7BC86258: usr1_handler (signal_i386.c:2158)
==22906==    by 0x4EA839CF: ??? (in /usr/lib/libpthread-2.18.so)
==22906==  Address 0x599b574 is on thread 1's stack
==22906==

The test also fails:
change.c:81: Test failed: Missed notification

if I redirect output to a file, however, it seems to work.