When running a Posix conformance test (from posixtestsuite), the kernel
locks up with:

BUG: soft lockup detected on CPU#0

Pid:  1873, comm: 10-1.test
EIP: 0060:[<c0126fda>] CPU: 0
EIP is at sys_timer_settime+0xfa+0x1f0
 EFLAGS: 00000282  Not tainted (2.6.11-rc3-mm2)
EAX: 00000282 EBX: 00000001 ECX: ffffffff EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: f17eafbc DS: 007b ES: 007b
CR0: 8005003b CR2: b7fac1f0 CR3: 311b3000 CR4: 000006d0

in test conformance/interfaces/timer_create/10-1.c (attached).

It doesn't lockup with 2.6.11-rc4; I notice the rc3-mm2 has a lot of
Posix-timer related changes.

    J