https://bugs.kde.org/show_bug.cgi?id=396142
Bug ID: 396142 Summary: crash after vm.max_map_count limit reached on gigabit connection Product: ktorrent Version: 5.1 Platform: Archlinux Packages OS: Linux Status: UNCONFIRMED Severity: crash Priority: NOR Component: general Assignee: joris.guis...@gmail.com Reporter: dromaret...@gmail.com Target Milestone: --- When downloading torrent on gigabit connection, speed reach 100MiB/s and number of peers goes > 100 ktorrent interface lags (like 12309) and ktorrent often crashes. Seems that it is related to reaching limit vm.max_map_count, which is by default ~65e3. Console output contain "mmap failed : Cannot allocate memory". Crashes seem to stop after setting "vm.max_map_count = 200000". See links with graphed output of "cat /proc/$(pidof ktorrent)/maps | wc -l" before setting vm.max_map_count to 200e3 and after. 1) default vm.max_map_count, crash in the end: https://0x0.st/spEO.png 2) vm.max_map_count is set 200000, no crash: https://0x0.st/spEg.png -- You are receiving this mail because: You are watching all bug changes.