Tony Lindgren wrote: > Thanks for trying it out. What kind of hardware do you have? Does it > have HPET? It looks like no suitable timer for dyn-tick is found... > Maybe the following patch helps? > > Tony Does 'different crash' qualify as "helping"? :) With this additional patch, I get this line followed by a system hang: [4294688.246000] dyn-tick: Maximum ticks to skip limited to 2693 With "nmi_watchdog=1", the "dyn-tick: Maximum..." line is followed by (my serial console stops logging): <4>[4294688.741000] NMI Watchdog detected LOCKUP on CPU0, eip c011a2ab, registers: Modules linked in: CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00000046 (2.6.12-rc2-dyntick) EIP is at smp_apic_timer_interrupt ... etc ... This is on my Dell Inspiron 9200: /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 2.00GHz stepping : 6 cpu MHz : 598.130 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe est tm2 bogomips : 1183.74 Attached are the serial log and the .config. HPET is enabled, and appears to be detected. Let me know if you need any additional info or need me to try anything else out. Frank -- Frank Sorenson - KD7TZK Systems Manager, Computer Science Department Brigham Young University frank@tuxrocks.com