SUMMARY * It happens with both stable 2.8.1 and git version of krusader * It does not occur with krusader under kde plasma 5.x DESCRIPTION: It occurs randomly, but it has been happening more frequently recently. And it may be related to USB or bluetooth devices. In my case, it's precisely my bluetooth keyboard that is the problem. If I disable keyboard and re-connect it, the problem is disappear for awhile. When I run krusader with `strace`, it freezes at, when the output of `strace` shows: At start: ``` getrandom("\x5a\x36\x16\x00\x61\x61\x74\x9e\xa9\xf1\xea\xef\x28\x7a\xf9\x4b", 16, GRND_INSECURE) = 16 readlinkat(AT_FDCWD, "/sys/devices/virtual/misc/uhid/0005:0A5C:8502.0007/power_supply/hid-01:00:01:41:5d:88-battery/subsystem", "../../../../../../../class/power"..., 4096) = 39 openat(AT_FDCWD, "/sys/devices/virtual/misc/uhid/0005:0A5C:8502.0007/power_supply/hid-01:00:01:41:5d:88-battery/uevent", O_RDONLY|O_NOCTTY|O_CLOEXEC) = 33 fstat(33, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0 read(33, ``` And when changing tabs, or browsing (some directories): ``` getrandom("\x43\xb8\x67\xe7\xf5\x00\xe5\x37\xc6\xd8\xc3\x9c\x8e\xdd\x5a\xa3", 16, GRND_INSECURE) = 16 newfstatat(AT_FDCWD, "/sys/devices/virtual/misc/uhid/0005:0A5C:8502.0007/input/input29/input29::scrolllock/MAJOR", 0x7ffdef605740, AT_SYMLINK_NOFOLLOW) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/sys/devices/virtual/misc/uhid/0005:0A5C:8502.0007/power_supply/hid-01:00:01:41:5d:88-battery/uevent", O_RDONLY|O_NOCTTY|O_CLOEXEC) = 50 fstat(50, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0 read(50, ``` SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: KDE Plasma Version: 6.2.3 KDE Frameworks Version: Qt Version: 6.8.0 ADDITIONAL INFORMATION Here is discussion about this problem on KDE's forum: https://discuss.kde.org/t/krusader-is-most-of-the-time-unresponsive-on-plasma-6/15050/ https://discuss.kde.org/t/krusader-is-slow-when-starting-or-changing-tabs/18257/ And someone has problem with Dolphin too, although I don't have problem with Dolphin (I don't use it much) https://forums.fedoraforum.org/showthread.php?332926-Dolphin-freezes-a-few-seconds-when-opening