Disk Utility Crashes on Benchmark

[Edwin Lee]

Built 4 identical machines, all work well. When running benchmarks using disk-utility on all four, one machine of the four fails with a segfault:

palimpsest[1796]: segfault at 7fffc8278ff8 ip 00007f33d60dc084 sp 00007fffc8279000 error 6 in libgobject-2.0.so.0.3000.0[7f33d60a6000+4e000]

The machines are:
120 GB SSD with Ubuntu partition and swap
1 TB storage drive
16 GB memory

I am running:
Ubuntu 11.10 64-bit

gnome-disk-utility:
  Installed: 3.0.2-1ubuntu2
  Candidate: 3.0.2-1ubuntu2

expected:
proper benchmark (all four other machines performed essentially identically)

actually happened:
program disappeared, checked dmesg and found segfault

I have checked that all four machines are hooked up similarly (same SATA controllers, etc.), and again, only one of the machines fails. And it fails consistently (same dmesg response).

Thanks!

[Edwin Lee (leeed2001)]

Let me slightly correct myself. I went one last time and checked how each drive was hooked in. On this motherboard, there are 8 SATA ports, 4 are 3G and 4 are 6G. While both of my drives were hooked to the 6G side (with 6G cables), they weren't in the -same two- that the other machines were hooked into. For kicks, I moved these drives to the exact same two ports as the other machines, and lo-and-behold, the benchmark completed successfully, with results matching the other 3 machines.

So I guess the problem statement is why the specific port matters.

Thanks!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.