On an dual AMD Athlon(tm)64 X2 Dual Core Processor 3800+ running 2.6.22 (Ubuntu Gutsy flavor...) and 2.6.23-rc3-hrt2

• .config
• lspci -vvv
• /bin/sleep is hanging
• hanging in nanosleep syscall seen via strace
• doesn't ctrl-c, but I can OOM it (page1/3)
• doesn't ctrl-c, but I can OOM it (page2/3)
• doesn't ctrl-c, but I can OOM it (page3/3)
• pending timers (page1/3)
• pending timers (page2/3)
• pending timers (page3/3)
• bottom on process list (showing as "exe" instead of "sleep" ?!) (left edge) hanging in getnstimeofday() function ?!
• bottom on process list (showing as "exe" instead of "sleep" ?!) (right edge)
• /proc/timer_list when booted with nolapic

Kernel command line options tried without success:

• clocksource=tsc
• nolapic_timer
• nolapic
• hpet=disable