When trying to mount an iPod Touch 4, ifuse silently fails, leaving a message in dmesg: ifuse[6612]: segfault at 56d0 ip 00007f36edc02e55 sp 00007f36eaf6fcb0 error 4 in libimobiledevice.so.4.0.1[7f36edbf5000+1b000] Emerging <libimobiledevice-1.1.5 fixes the issue. It was also fixed upstream, see: https://github.com/libimobiledevice/ifuse/commit/9ac32aa3cb2ed5242c0fe3c58ef5f571bf2b95d7
in portage as ifuse-1.1.2-r1