Comment 3 for bug 1824756

This is what I see from strace (snip):

...
25622 lstat("sda2", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 2), ...}) = 0
25622 lstat("sda1", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 1), ...}) = 0
25622 lstat("sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 getcwd("/dev", 10) = 5
25622 chdir("/root") = 0
25622 close(5) = 0
25622 stat("/dev/sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 lstat("/dev", {st_mode=S_IFDIR|0755, st_size=4720, ...}) = 0
25622 lstat("/dev/sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 lstat("/dev", {st_mode=S_IFDIR|0755, st_size=4720, ...}) = 0
25622 lstat("/dev/sdb", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 16), ...}) = 0
25622 stat("/dev/sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 stat("/dev/sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 lstat("/dev", {st_mode=S_IFDIR|0755, st_size=4720, ...}) = 0
25622 lstat("/dev/sdb3", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 19), ...}) = 0
25622 lstat("/dev", {st_mode=S_IFDIR|0755, st_size=4720, ...}) = 0
25622 lstat("/dev/sdb", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 16), ...}) = 0
25622 openat(AT_FDCWD, "/dev/sdb", O_RDONLY) = 5
25622 fstat(5, {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 16), ...}) = 0
25622 ioctl(5, BLKFLSBUF) = ?
25622 +++ killed by SIGSEGV +++
25621 <... wait4 resumed> [{WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV}], 0, NULL) = 25622
25621 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=25622, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=0} ---
25621 rt_sigreturn({mask=[]}) = 25622
25621 write(2, "Segmentation fault\n", 19) = 19
...