Description of problem: I've got a bunch of BUGs in dmesg like that Version-Release number of selected component (if applicable): [root@trash ~]# uname -r 2.6.16-1.2289_FC6 [root@trash ~]# rpm -q kernel kernel-2.6.16-1.2289_FC6 How reproducible: install raw hide, wait BUG: soft lockup detected on CPU#0! <c044a502> softlockup_tick+0xad/0xc4 <c042d384> update_process_times+0x39/0x5c <c04075d3> timer_interrupt+0x55/0x7e <c044a59e> handle_IRQ_event+0x23/0x4c <c044a656> __do_IRQ+0x8f/0xe5 <c040649a> do_IRQ+0x67/0x84 ======================= <c040487e> common_interrupt+0x1a/0x20 <c045e0d4> anon_vma_unlink+0x5b/0x10f <c045983f> free_pgtables+0x53/0xa0 <c045a720> exit_mmap+0x99/0xf6 <c0422a54> mmput+0x27/0xd0 <c042647f> exit_mm+0x13b/0x14b <c0427a03> do_exit+0x1ef/0x7bd <c0406e86> do_syscall_trace+0x126/0x16d <c042803e> sys_exit_group+0x0/0xd <c0403e3f> syscall_call+0x7/0xb BUG: soft lockup detected on CPU#0! <c044a502> softlockup_tick+0xad/0xc4 <c042d384> update_process_times+0x39/0x5c <c04075d3> timer_interrupt+0x55/0x7e <c044a59e> handle_IRQ_event+0x23/0x4c <c044a656> __do_IRQ+0x8f/0xe5 <c040649a> do_IRQ+0x67/0x84 ======================= <c040487e> common_interrupt+0x1a/0x20 <c045e0d4> anon_vma_unlink+0x5b/0x10f <c045983f> free_pgtables+0x53/0xa0 <c045a720> exit_mmap+0x99/0xf6 <c0422a54> mmput+0x27/0xd0 <c042647f> exit_mm+0x13b/0x14b <c0427a03> do_exit+0x1ef/0x7bd <c042de6f> __dequeue_signal+0x14a/0x155 <c042803e> sys_exit_group+0x0/0xd <c042f787> get_signal_to_deliver+0x3a9/0x3d1 <c0403564> do_notify_resume+0x75/0x5fa <c060e860> _spin_unlock_irq+0x5/0x7 <c060c69c> schedule+0xb00/0xb69 <c04496cc> audit_syscall_exit+0x3f/0x2ee <c0406dbb> do_syscall_trace+0x5b/0x16d <c0403ece> work_notifysig+0x13/0x19
I'm seeing the following a lot using 2.6.17-1.2307_FC6 on an AMD64 X2 system: BUG: soft lockup detected on CPU#1! Call Trace: <IRQ> <ffffffff802b40b5>{softlockup_tick+219} <ffffffff802961fb>{update_process_times+66} <ffffffff8027916a>{smp_local_timer_interrupt+35} <ffffffff80279812>{smp_apic_timer_interrupt+65} <ffffffff8026284b>{apic_timer_interrupt+135} <ffffffff802078ba>{ide_outb+0} <ffffffff80338406>{__next_cpu+25} <ffffffff803b60ae>{ide_inb+4} <ffffffff802283f7>{ide_wait_stat+189} <ffffffff8020f009>{ide_do_request+1104} <ffffffff80268f46>{_spin_lock_irqsave+9} <ffffffff8027a21b>{unmask_IO_APIC_irq+33} <ffffffff803b6090>{ide_timer_expiry+729} <ffffffff803b5db7>{ide_timer_expiry+0} <ffffffff80295bf3>{run_timer_softirq+342} <ffffffff80211f71>{__do_softirq+85} <ffffffff80262eee>{call_softirq+30} <ffffffff802702b1>{do_softirq+44} <ffffffff8026ef9b>{default_idle+0} <ffffffff8026284b>{apic_timer_interrupt+135} <EOI> <ffffffff8026ef9b>{default_idle+0} <ffffffff802668f6>{thread_return+0} <ffffffff8026efc6>{default_idle+43} <ffffffff8024d3ac>{cpu_idle+151} <ffffffff80278f88>{start_secondary+1131} I don't know if it's related
should be fixed in tomorrows rawhide push (kernel-2.6.17-1.2375.fc6 or higher).