stack trace points at new hashtable functionality within systemd.
The crash shows udevd is crashing with SIGBUS.
The new siphash24.c code is full of dereferences of uint8_t types that
are then being handled as uint64_t values, as in le64toh() which is
defined as:
static inline uint64_t le64toh(le64_t value) { return
bswap_64_on_be((uint64_t __force)value); }
There is nothing in this code that guarantees 64-bit alignment of the
source pointer. Dereferencing an unaligned pointer as a 64-bit int is
non-portable, and it's precisely a SIGBUS that is raised in the case of
unaligned access.
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https://bugs.launchpad.net/bugs/1512323
Title:
devices on devel-proposed/ubuntu do not boot with systemd 227-2ubuntu1
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