https://bugzilla.kernel.org/show_bug.cgi?id=86471 --- Comment #3 from Markus Königshaus <m.koenigshaus@xxxxxx> --- It looks like a problem in the writeback - mechanism, not ext4 related, sorry: cd /sys/kernel/debug/tracing/ echo function > current_tracer echo writeback* > set_ftrace_filter >> before mysqlshutdown # tracer: function # # entries-in-buffer/entries-written: 3/3 #P:1 # # _-----=> irqs-off # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | dd-3666 [000] ...1 1338.484467: writeback_in_progress <-balance_dirty_pages_ratelimited kworker/u2:2-1001 [000] ...2 1338.557118: writeback_sb_inodes <-__writeback_inodes_wb kworker/u2:2-1001 [000] ...2 1338.557160: writeback_sb_inodes <-__writeback_inodes_wb >> after mysqlshutdown: # tracer: function # # entries-in-buffer/entries-written: 384/384 #P:1 # # _-----=> irqs-off # / _----=> need-resched # | / _---=> hardirq/softirq # || / _--=> preempt-depth # ||| / delay # TASK-PID CPU# |||| TIMESTAMP FUNCTION # | | | |||| | | dd-3733 [000] ...1 1403.061232: writeback_in_progress <-balance_dirty_pages_ratelimited kworker/u2:2-1001 [000] ...2 1403.061277: writeback_sb_inodes <-__writeback_inodes_wb dd-3733 [000] ...1 1403.071042: writeback_in_progress <-balance_dirty_pages_ratelimited dd-3733 [000] ...1 1403.071328: writeback_in_progress <-balance_dirty_pages_ratelimited kworker/u2:2-1001 [000] ...2 1403.071350: writeback_sb_inodes <-__writeback_inodes_wb dd-3733 [000] ...1 1403.077546: writeback_in_progress <-balance_dirty_pages_ratelimited [ ... repeat 368 times ... ] dd-3733 [000] ...1 1404.327043: writeback_in_progress <-balance_dirty_pages_ratelimited dd-3733 [000] ...1 1404.327306: writeback_in_progress <-balance_dirty_pages_ratelimited kworker/u2:2-1001 [000] ...2 1404.327336: writeback_sb_inodes <-__writeback_inodes_wb dd-3733 [000] ...1 1404.337125: writeback_in_progress <-balance_dirty_pages_ratelimited someone an idea, where to report this problem? Regards, Markus -- You are receiving this mail because: You are watching the assignee of the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
