And here is a disassembly of a locally-built siphash24_compress, built using the same toolchain as was used for building systemd, which I have been unable to get to crash with unaligned input.
The code is identical with only differences in the addresses, except for this rather surprising bit at the end: nop -andeq r12, r1, r10, lsr #16 -muleq r1, r4, r9 -andeq r7, r1, lr, lsr #19 +andeq r2, r0, r10, ror #25 + ; <UNDEFINED> instruction: 0x000017b0 +ldrdeq r1, [r0], -r6 End of assembler dump. (gdb) Not sure what to make of that. But the added ldrdeq is in the working code, not the code that has crashes reported against it; so it doesn't seem to be relevant. ** Attachment added: "siphash24_compress-working-disassembly.txt" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1512323/+attachment/4519155/+files/siphash24_compress-working-disassembly.txt -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1512323 Title: devices on devel-proposed/ubuntu do not boot with systemd 227-2ubuntu1 Status in Canonical System Image: Confirmed Status in systemd package in Ubuntu: In Progress Bug description: Last known good build: mako devel-proposed/ubuntu r336 Affects builds from devel-proposed/ubuntu starting from first Xenial build. Test Case: Boot in fastboot mode and flash with: $ ubuntu-device-flash -v touch --channel=ubuntu-touch/devel-proposed/ubuntu --bootstrap or upgrade from 336 to latest devel-proposed image Actual Result During a successful flashing operation of a device from fastboot, it boots once into recovery, then reboots and a rotating Ubuntu logo is displayed while the devices is being flashed. With this issue, on the second stage of the flash the phone is stuck on the vendor's logo (google or bq) and the rotating ubuntu logo is never displayed. Same problem on krillin devel-proposed/krillin.en 235 Workaround: Boot into recovery, mount the system partition and downgrade systemd to 225-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1512323/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp