Results for today's git (plus my dde patch) are online at http://kegel.com/wine/valgrind/20071109/
ole32/tests/marshall.c has always been hanging when run under valgrind. In the last two days, the following additional tests hang under valgrind: mshtml/tests/dom.c mshtml/tests/htmldoc.c ole32/tests/marshal.c shdocvw/tests/webbrowser.c
I can reproduce one hang with cd dlls/mshtml/tests make testclean wineserver -k RUNTEST_USE_VALGRIND=1 make test (with the wine-vg-utils.patch I provide. Make by itself does not behave well under valgrind, so you can't just do "valgrind make test").
Sadly, I don't have time to do a regression test, but it's pretty easy to repeat my results. See http://wiki.winehq.org/Wine_and_Valgrind It'd be nice if somebody else verified that these hangs occur for them too, that they didn't occur with wine-0.9.48, and maybe did a regression test to find out when they started... - Dan