Public bug reported: [impact]
under some circumstances, libjemalloc2 hangs on arm64 architecture. [test case] the mariadb-10.1 autopkgtests, specifically when apt installing mariadb- server-10.1, will hang. It's possible the apt install mariadb- server-10.1 hangs outside the autopkgtests as well, but the test regression is very reproducable, e.g.: http://autopkgtest.ubuntu.com/packages/m/mariadb-10.1/cosmic/arm64 note the failures for version 1:10.1.38-0ubuntu0.18.10.1 [regression potential] this patch is already included in disco and later; regression potential should be low. Regressions would likely result in more/different hangs. [other info] this patch is already included in disco/eoan. In bionic and earlier, jemalloc does not hook the _Unwind_Backtrace function. This hook appears to be what introduces the problem, and jemalloc only starts hooking the function in cosmic. ** Affects: jemalloc (Ubuntu) Importance: Undecided Status: Fix Released ** Affects: jemalloc (Ubuntu Cosmic) Importance: Medium Assignee: Dan Streetman (ddstreet) Status: In Progress ** Also affects: jemalloc (Ubuntu Cosmic) Importance: Undecided Status: New ** Description changed: [impact] under some circumstances, libjemalloc2 hangs on arm64 architecture. [test case] the mariadb-10.1 autopkgtests, specifically when apt installing mariadb- server-10.1, will hang. It's possible the apt install mariadb- server-10.1 hangs outside the autopkgtests as well, but the test regression is very reproducable, e.g.: http://autopkgtest.ubuntu.com/packages/m/mariadb-10.1/cosmic/arm64 note the failures for version 1:10.1.38-0ubuntu0.18.10.1 [regression potential] this patch is already included in disco and later; regression potential should be low. Regressions would likely result in more/different hangs. + + [other info] + + this patch is already included in disco/eoan, and bionic and earlier + have a very different/older version of jemalloc, and don't need this + patch. ** Changed in: jemalloc (Ubuntu) Status: New => Fix Released ** Changed in: jemalloc (Ubuntu Cosmic) Assignee: (unassigned) => Dan Streetman (ddstreet) ** Changed in: jemalloc (Ubuntu Cosmic) Importance: Undecided => Low ** Changed in: jemalloc (Ubuntu Cosmic) Status: New => In Progress ** Changed in: jemalloc (Ubuntu Cosmic) Importance: Low => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826883 Title: libjemalloc2 hangs on arm64 in some cases To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jemalloc/+bug/1826883/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
