Hi All, I'm experiencing some soft lockup problem on fedora core 5 v2.6.19-1.2288.fc5 x86_64 with a dual HT Xeon 3.2GHz EMT in ASUS NCT-D mobo. This problem still happen everytime I switch on the box, but disappear if I reboot the box with Ctrl-Alt-Canc and the box stay up without any problem so far. Does anyone have some tips to suggest? Feb 16 13:06:14 spargi kernel: EXT3 FS on sda1, internal journal Feb 16 13:06:14 spargi kernel: EXT3-fs: mounted filesystem with ordered data mode. Feb 16 13:06:14 spargi kernel: Adding 4192956k swap on /dev/sda2. Priority:-1 extents:1 across:4192956k Feb 16 13:06:14 spargi kernel: IA-32 Microcode Update Driver: v1.14a <tigran@xxxxxxxxxxx> Feb 16 13:06:14 spargi kernel: ip_tables: (C) 2000-2006 Netfilter Core Team Feb 16 13:06:14 spargi kernel: Netfilter messages via NETLINK v0.30. Feb 16 13:06:14 spargi kernel: ip_conntrack version 2.4 (8192 buckets, 65536 max) - 312 bytes per conntrack Feb 16 13:06:14 spargi kernel: skge eth0: enabling interface Feb 16 13:06:14 spargi kernel: skge eth0: Link is up at 100 Mbps, full duplex, flow control both Feb 16 13:06:29 spargi kernel: BUG: soft lockup detected on CPU#3! Feb 16 13:06:29 spargi kernel: Feb 16 13:06:29 spargi kernel: Call Trace: Feb 16 13:06:29 spargi kernel: [<ffffffff802699c5>] show_trace+0x34/0x47 Feb 16 13:06:29 spargi kernel: [<ffffffff802699ea>] dump_stack+0x12/0x17 Feb 16 13:06:29 spargi kernel: [<ffffffff802b536e>] softlockup_tick+0xdb/0xf6 Feb 16 13:06:29 spargi kernel: [<ffffffff802921d8>] update_process_times+0x42/0x68 Feb 16 13:06:29 spargi kernel: [<ffffffff80274322>] smp_local_timer_interrupt+0x34/0x55 Feb 16 13:06:29 spargi kernel: [<ffffffff802749d6>] smp_apic_timer_interrupt+0x51/0x69 Feb 16 13:06:29 spargi kernel: [<ffffffff8025ccf6>] apic_timer_interrupt+0x66/0x70 Feb 16 13:06:29 spargi kernel: [<ffffffff8026911d>] mwait_idle_with_hints+0x44/0x45 Feb 16 13:06:29 spargi kernel: [<ffffffff80255eee>] mwait_idle+0xc/0x20 Feb 16 13:06:29 spargi kernel: [<ffffffff80247ec6>] cpu_idle+0x8b/0xae Feb 16 13:06:29 spargi kernel: [<ffffffff8027412f>] start_secondary+0x462/0x471 Feb 16 13:06:29 spargi kernel: Feb 16 13:06:29 spargi kernel: BUG: soft lockup detected on CPU#1! Feb 16 13:06:29 spargi kernel: Feb 16 13:06:29 spargi kernel: Call Trace: Feb 16 13:06:29 spargi kernel: [<ffffffff802699c5>] show_trace+0x34/0x47 Feb 16 13:06:29 spargi kernel: [<ffffffff802699ea>] dump_stack+0x12/0x17 Feb 16 13:06:29 spargi kernel: [<ffffffff802b536e>] softlockup_tick+0xdb/0xf6 Feb 16 13:06:29 spargi kernel: [<ffffffff802921d8>] update_process_times+0x42/0x68 Feb 16 13:06:29 spargi kernel: [<ffffffff80274322>] smp_local_timer_interrupt+0x34/0x55 Feb 16 13:06:29 spargi kernel: [<ffffffff802749d6>] smp_apic_timer_interrupt+0x51/0x69 Feb 16 13:06:29 spargi kernel: [<ffffffff8025ccf6>] apic_timer_interrupt+0x66/0x70 Feb 16 13:06:29 spargi kernel: [<ffffffff8026911d>] mwait_idle_with_hints+0x44/0x45 Feb 16 13:06:29 spargi kernel: [<ffffffff80255eee>] mwait_idle+0xc/0x20 Feb 16 13:06:29 spargi kernel: [<ffffffff80247ec6>] cpu_idle+0x8b/0xae Feb 16 13:06:29 spargi kernel: [<ffffffff8027412f>] start_secondary+0x462/0x471 Feb 16 13:06:29 spargi kernel: Feb 16 13:06:29 spargi kernel: BUG: soft lockup detected on CPU#0! Feb 16 13:06:29 spargi kernel: Feb 16 13:06:29 spargi kernel: Call Trace: Feb 16 13:06:29 spargi kernel: [<ffffffff802699c5>] show_trace+0x34/0x47 Feb 16 13:06:29 spargi kernel: [<ffffffff802699ea>] dump_stack+0x12/0x17 Feb 16 13:06:29 spargi kernel: [<ffffffff802b536e>] softlockup_tick+0xdb/0xf6 Feb 16 13:06:29 spargi kernel: [<ffffffff802921d8>] update_process_times+0x42/0x68 Feb 16 13:06:29 spargi kernel: [<ffffffff80274322>] smp_local_timer_interrupt+0x34/0x55 Feb 16 13:06:29 spargi kernel: [<ffffffff802749d6>] smp_apic_timer_interrupt+0x51/0x69 Feb 16 13:06:29 spargi kernel: [<ffffffff8025ccf6>] apic_timer_interrupt+0x66/0x70 Feb 16 13:06:29 spargi kernel: [<ffffffff8026911d>] mwait_idle_with_hints+0x44/0x45 Feb 16 13:06:29 spargi kernel: [<ffffffff80255eee>] mwait_idle+0xc/0x20 Feb 16 13:06:29 spargi kernel: [<ffffffff80247ec6>] cpu_idle+0x8b/0xae Feb 16 13:06:29 spargi kernel: [<ffffffff806627a0>] start_kernel+0x240/0x245 Feb 16 13:06:29 spargi kernel: [<ffffffff8066215a>] _sinittext+0x15a/0x15e Feb 16 13:06:29 spargi kernel: Roberto Fichera.
