https://bugzilla.kernel.org/show_bug.cgi?id=76261 --- Comment #2 from kun.chen <kun.chen@xxxxxxxxxxxx> --- You can refer this: https://android.googlesource.com/platform/system/core/+/master/libcutils/android_reboot.c During shutdown in android, it realy will goto emergency_remount() flow. And from the ksmg log, it seems ext4 writeback continued almost 15 seconds after emergency_remount() completed. Not sure why still has so many writeback occurs, even it used emergency_remount(), still has so many writeback occurs, and takes so long time, this will lead to shutdown hang or delay -- 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
