Comment 0 for bug 2032577

xz segfaults. More details in
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2032379

From Dmesg.txt on that report

[114838.184191] xz[431483]: segfault at 7f9a93f3701a ip 00007f9b3f780c1a sp 00007f9a957baa50 error 4 in liblzma.so.5.2.5[7f9b3f771000+1b000]