Hallo! Is it a known issue that kdump failed with 2.6.31 i386 systems? The kdump kernel seems hang here. ... Spurious LAPIC timer interrupt on cpu 0 Console: colour VGA+ 80x25 console handover: boot [earlyser0] -> real [ttyS0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 48 ... MAX_LOCKDEP_KEYS: 8191 ... CLASSHASH_SIZE: 4096 ... MAX_LOCKDEP_ENTRIES: 16384 ... MAX_LOCKDEP_CHAINS: 32768 ... CHAINHASH_SIZE: 16384 memory used by lock dependency info: 3743 kB per task-struct memory footprint: 1920 bytes HPET: 3 timers in total, 0 timers will be used for per-cpu timer Clocksource tsc unstable (delta = 577041676100 ns) or Spurious LAPIC timer interrupt on cpu 0 Console: colour VGA+ 80x25 console [ttyS0] enabled Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 48 ... MAX_LOCKDEP_KEYS: 8191 ... CLASSHASH_SIZE: 4096 ... MAX_LOCKDEP_ENTRIES: 16384 ... MAX_LOCKDEP_CHAINS: 32768 ... CHAINHASH_SIZE: 16384 memory used by lock dependency info: 3743 kB per task-struct memory footprint: 1920 bytes allocated 2621440 bytes of page_cgroup please try 'cgroup_disable=memory' option if you don't want memory cgroups Calibrating delay loop (skipped), value calculated using timer frequency.. 5986.01 BogoMIPS (lpj=2993008) Thanks! CAI Qian