I've been encountering a "freeze" on shutdown with guest kernel
2.6.12-rc5-mm1. Today, I was busy with other things so I left it frozen for
a while. When I returned, I saw the following:
Turning off swap
BUG: soft lockup detected on CPU#0!
EIP: 0000:[<00000000>] CPU: 0 Not tainted EFLAGS: 00000000
Not tainted
EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: 00000000 DS: 0000 ES: 0000
082976f0: [<080789a9>] show_regs+0xc9/0xf0
08297710: [<0809bb60>] softlockup_tick+0x50/0x60
08297730: [<08087d44>] do_timer+0x44/0x110
08297750: [<08062750>] um_timer+0x10/0x50
08297770: [<0809bd86>] handle_IRQ_event+0x36/0x90
082977a0: [<0809be8e>] __do_IRQ+0xae/0x110
082977c0: [<0805f2df>] do_IRQ+0x2f/0x40
082977d0: [<080626cb>] timer_irq+0x11b/0x170
08297800: [<080628d9>] timer_handler+0x49/0x60
08297820: [<080759ca>] sig_handler_common_skas+0xaa/0x100
08297850: [<08071b93>] alarm_handler+0x23/0x50
08297870: [<ffffe420>] _etext+0xf7db7406/0x0
08297b80: [<08060e2a>] default_idle+0x6a/0x80
08297bb0: [<08064744>] init_idle_skas+0x24/0x30
08297bc0: [<08060e4a>] cpu_idle+0xa/0x10
08297bd0: [<0805e22f>] rest_init+0x1f/0x30
08297be0: [<080495d6>] start_kernel+0x176/0x1b0
08297bf0: [<0806477b>] start_kernel_proc+0x2b/0x30
08297c00: [<08070b8a>] run_kernel_thread+0x3a/0x50
08297cd0: [<0806448f>] new_thread_handler+0xaf/0x110
08297d20: [<ffffe420>] _etext+0xf7db7406/0x0
Does anyone recognize this bug? I've been planning on upgrading, but would
like to know if the effort is likely to fix the issue. Unfortunately, this
is a production machine that's owned by another individual. So I need to be
careful about changes to the OS and kernel.
Tony
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