https://bugs.kde.org/show_bug.cgi?id=405295
--- Comment #11 from zephyrus00jp <ishik...@yk.rim.or.jp> --- My previous comment about valgrind + thunderbird running fine as superuser under Debian GNU/Linux may be a bit premature: The test certainly ran some tests, but after printing the log below, valgrind seems to get stuck. There was no CPU activity... -DOCSHELL 0x42ea2c20 == 14 [pid = 4068] [id = {e07f68d5-9c05-4905-a767-511217216710}] [url = chrome://messenger/content/AccountManager.xul] --4068-- memcheck GC: 81117 nodes, 30669 survivors (37.8%) [4068, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8000FFFF: file /NREF-COMM-CENTRAL/mozilla/comm/mailnews/base/util/nsMsgDBFolder.cpp, line 2952 NS_NewBufferedOutputStream: outputStream (= std::move(aOutputputStream)) =0x5ffb6c98 --4068-- memcheck GC: 81117 nodes, 31071 survivors (38.3%) The pseudo desktop (Xephyr) has a greyed screen all over. So I am not sure whether it is the bug of valgrind+thunderbird, or some issues related to timing of Xephyr server (X11 protocol packet exchange and there could be some implicit assumption about the timing satisfied without explicit lock, etc. on the client side, i.e. TB.) The valgrind+TB got stuck while executing the test: TEST-START | /NREF-COMM-CENTRAL/mozilla/comm/mail/test/mozmill/account/test-archive-options.js | test_open_archive_options -- You are receiving this mail because: You are watching all bug changes.