r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/kexec_crash_loaded', 0x0, 0x0)
openat(0xffffffffffffff9c, 0x0, 0x0, 0x0)
fallocate(0xffffffffffffffff, 0x0, 0x0, 0x0)
preadv(r0, &(0x7f0000000600)=[{&(0x7f0000000200)=""/111, 0x6f}], 0x1, 0x7fffffff, 0x0)