Re: 2.6.12-rc6-mm1

From: Kirill Korotaev
Date: Fri Jun 10 2005 - 07:14:23 EST

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alt+sysrq+p does wierd stuff (is that new patch in your tree Andrew?
doesn't seem to inter-react with the other NMI code well)

What patch?

Sorry.

nmi-lockup-and-altsysrq-p-dumping-calltraces-on-_all_-cpus.patch

It does seem to work. But probably needs some cleanup for the NMI
errors.

If you give me to know where the problem come from I can fix it and make a cleanup.

It gets a lot of the "dazed and confused" errors. Possibly you just need
to disable that part of the handler?

can you try this cleanup patch?
This fixes the problem for me, though I do no like the way it does so very much...

Kirill

Command> break
^@SysRq : Show Regs
^M
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 0
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: c040e000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7e3f5a0 CR3: 16dd0300 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c01002c8>] rest_init+0x28/0x2c
^M^@ [<c0410899>] start_kernel+0x19d/0x1a0
^M^@ Uhhuh. NMI received for unknown reason 00 on CPU 1.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 16.
^M^@Dazed and confused, but trying to continue
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 3.
^M^@Do you have a strange power saving mode enabled?
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 17.
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 16
^M^@EIP is at default_idle+0x23/0x2c
^M^@Dazed and confused, but trying to continue
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 2.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 18.
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 19.
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7420000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@CR0: 8005003b CR2: 00000000 CR3: 17771800 CR4: 000006b0
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>]Uhhuh. NMI received for unknown reason 00 on CPU 6.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 20.
^M^@ start_secondary+0x13d/0x140
^M^@Dazed and confused, but trying to continue
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 18
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 10.
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7426000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f25d9c CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>]Uhhuh. NMI received for unknown reason 00 on CPU 29.
^M^@ cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 2
^M^@ EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7400000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7edeb00 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>]Uhhuh. NMI received for unknown reason 00 on CPU 23.
^M^@ start_secondary+0x13d/0x140
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 7.
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 3
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7402000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@Do you have a strange power saving mode enabled?
^M^@CR0: 8005003b CR2: b7f95438 CR3: 17771800 CR4: 000006b0
^M^@ [<c0100ca3>]Uhhuh. NMI received for unknown reason 00 on CPU 4.
^M^@ cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 17
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 5.
^M^@Dazed and confused, but trying to continue
^M^@EIP is at default_idle+0x23/0x2c
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 14.
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7424000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>]Uhhuh. NMI received for unknown reason 00 on CPU 9.
^M^@ cpu_idle+0x7b/0x8c
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 25.
^M^@ [<c010e79d>] start_secondary+0x13d/0x140Dazed and confused, but trying to continue
^M
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 19
^M^@ EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7428000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f30d9c CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>]Uhhuh. NMI received for unknown reason 00 on CPU 13.
^M^@ start_secondary+0x13d/0x140
^M^@ Do you have a strange power saving mode enabled?
^M^@----------- IPI show regs -----------Uhhuh. NMI received for unknown reason 00 on CPU 8.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 11.
^M^@Dazed and confused, but trying to continue
^M^@Dazed and confused, but trying to continue
^M^@Dazed and confused, but trying to continue
^M
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 20
^M^@Dazed and confused, but trying to continue
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 22.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 26.
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ESI: d742a000 EDI: c0470300 EBP: c0470300Uhhuh. NMI received for unknown reason 00 on CPU 30.
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Do you have a strange power saving mode enabled?
^M^@Do you have a strange power saving mode enabled?
^M^@ DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 21.
^M^@ [<c0100ca3>]Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ cpu_idle+0x7b/0x8c
^M^@Dazed and confused, but trying to continue
^M^@ [<c010e79d>]Do you have a strange power saving mode enabled?
^M^@ start_secondary+0x13d/0x140
^M^@Do you have a strange power saving mode enabled?
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 27.
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 24.
^M^@ ----------- IPI show regs -----------
^M^@Pid: 11221, comm: cp
^M^@EIP: 0060:[<c02efbdc>] CPU: 5
^M^@Do you have a strange power saving mode enabled?
^M^@EIP is at _spin_lock_irqsave+0x14/0x20
^M^@ EFLAGS: 00000286 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@Dazed and confused, but trying to continue
^M^@EAX: 00000286 EBX: d6ce4800 ECX: c03cabe0 EDX: c049ba84
^M^@ESI: ffffffea EDI: d55f8000 EBP: d55f8000 DS: 007b ES: 007b
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@CR0: 80050033 CR2: bfc7d2fc CR3: 16dd02e0 CR4: 000006b0
^M^@ [<c0270377>]Uhhuh. NMI received for unknown reason 00 on CPU 31.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 12.
^M^@ ahc_linux_proc_info+0x27/0x212
^M^@Do you have a strange power saving mode enabled?
^M^@Do you have a strange power saving mode enabled?
^M^@ [<c0149052>]Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ page_add_anon_rmap+0x62/0x68
^M^@ [<c0144358>]Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 15.
^M^@Uhhuh. NMI received for unknown reason 00 on CPU 28.
^M^@Dazed and confused, but trying to continue
^M^@ do_anonymous_page+0x1f0/0x21c
^M^@ [<c0144370>]Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@ do_anonymous_page+0x208/0x21c
^M^@Dazed and confused, but trying to continue
^M^@ [<c01443d9>]Do you have a strange power saving mode enabled?
^M^@Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@Do you have a strange power saving mode enabled?
^M^@ do_no_page+0x55/0x3e8
^M^@ [<c01372b5>] prep_new_page+0x49/0x50
^M^@ [<c0137973>] buffered_rmqueue+0x16f/0x1d0
^M^@ [<c0137e1b>] __alloc_pages+0x3bb/0x3c8
^M^@ [<c0257cdb>] proc_scsi_read+0x2b/0x44
^M^@ [<c0182f28>] proc_file_read+0xec/0x200
^M^@ [<c0152ff9>] vfs_read+0x91/0x12c
^M^@ [<c01532e4>] sys_read+0x40/0x6c
^M^@ [<c0102a19>] syscall_call+0x7/0xb
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 7
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d740c000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 4
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7404000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 080f9c48 CR3: 17771320 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c02efcae>] CPU: 30
^M^@EIP is at _spin_lock+0xa/0x10
^M^@ EFLAGS: 00000046 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: c1050aa0 EBX: c1050aa0 ECX: d7463ea8 EDX: 00000003
^M^@ESI: c10d9620 EDI: c10d9fe0 EBP: d7463eb0 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7eea900 CR3: 00474000 CR4: 000006b0
^M^@ [<c011583b>] load_balance+0xcf/0x170
^M^@ [<c0115af5>] rebalance_tick+0xe1/0x104
^M^@ [<c0115d77>] scheduler_tick+0x97/0x318
^M^@ [<c01225b3>] update_process_times+0xef/0x100
^M^@ [<c010f5f9>] smp_apic_timer_interrupt+0xd5/0xe4
^M^@ [<c0103464>] apic_timer_interrupt+0x1c/0x24
^M^@ [<c0100bb0>] default_idle+0x0/0x2c
^M^@ [<c0100bd3>] default_idle+0x23/0x2c
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs ----------- ^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c02efb6a>] CPU: 15
^M^@EIP is at _spin_trylock+0x6/0x14
^M^@ EFLAGS: 00000046 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c1050aa0 ECX: 00000008 EDX: c1050aa0
^M^@ESI: c10875a0 EDI: c1087f60 EBP: d741fe84 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0114fda>] double_lock_balance+0x12/0x48
^M^@ [<c01157e4>] load_balance+0x78/0x170
^M^@ [<c0115af5>] rebalance_tick+0xe1/0x104
^M^@ [<c0115d77>] scheduler_tick+0x97/0x318
^M^@ [<c01225b3>] update_process_times+0xef/0x100
^M^@ [<c010f5f9>] smp_apic_timer_interrupt+0xd5/0xe4
^M^@ [<c0103464>] apic_timer_interrupt+0x1c/0x24
^M^@ [<c0100bb0>] default_idle+0x0/0x2c
^M^@ [<c0100bd3>] default_idle+0x23/0x2c
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 21
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d742c000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 14
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d741c000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7e64070 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 27
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d745c000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f66d9c CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 8
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d740e000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 080f133c CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 25
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7436000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f74d9c CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c02efb6a>] CPU: 29
^M^@EIP is at _spin_trylock+0x6/0x14
^M^@ EFLAGS: 00000046 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000001 EBX: c1050aa0 ECX: 00000008 EDX: c1050aa0
^M^@ESI: c10d3ea0 EDI: c10d4860 EBP: d7461e84 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0114fda>] double_lock_balance+0x12/0x48
^M^@ [<c01157e4>] load_balance+0x78/0x170
^M^@ [<c0115af5>] rebalance_tick+0xe1/0x104
^M^@ [<c0115d77>] scheduler_tick+0x97/0x318
^M^@ [<c01225b3>] update_process_times+0xef/0x100
^M^@ [<c010f5f9>] smp_apic_timer_interrupt+0xd5/0xe4
^M^@ [<c0103464>] apic_timer_interrupt+0x1c/0x24
^M^@ [<c0100bb0>] default_idle+0x0/0x2c
^M^@ [<c0100bd3>] default_idle+0x23/0x2c
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 31
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7464000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 24
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7434000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f3cdd8 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 10
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7412000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7ea6920 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 26
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7438000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c01154a3>] CPU: 13
^M^@EIP is at find_busiest_group+0x103/0x2f8
^M^@ EFLAGS: 00000086 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000005 EBX: 00000005 ECX: c1050aa0 EDX: 00000000
^M^@ESI: c04813ac EDI: 00000200 EBP: d741be7c DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7e7e070 CR3: 00474000 CR4: 000006b0
^M^@ [<c01157a2>] load_balance+0x36/0x170
^M^@ [<c0115af5>] rebalance_tick+0xe1/0x104
^M^@ [<c0115d77>] scheduler_tick+0x97/0x318
^M^@ [<c01225b3>] update_process_times+0xef/0x100
^M^@ [<c010f5f9>] smp_apic_timer_interrupt+0xd5/0xe4
^M^@ [<c0103464>] apic_timer_interrupt+0x1c/0x24
^M^@ [<c0100bb0>] default_idle+0x0/0x2c
^M^@ [<c0100bd3>] default_idle+0x23/0x2c
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 28
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d745e000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c011e897>] CPU: 12
^M^@EIP is at __do_softirq+0x47/0x100
^M^@ EFLAGS: 00000006 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: c0470380 EBX: c0476020 ECX: 00000030 EDX: c1075ce0
^M^@ESI: 00000002 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f54000 CR3: 00474000 CR4: 000006b0
^M^@ [<c011e97f>] do_softirq+0x2f/0x34
^M^@ [<c011ea24>] irq_exit+0x34/0x38
^M^@ [<c010f601>] smp_apic_timer_interrupt+0xdd/0xe4
^M^@ [<c0103464>] apic_timer_interrupt+0x1c/0x24
^M^@ [<c0100bb0>] default_idle+0x0/0x2c
^M^@ [<c0100bd3>] default_idle+0x23/0x2c
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 9
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7410000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f1d900 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 11
^M^@ EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7414000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 23
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7432000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs ----------- ^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 6
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7408000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7f3cdd8 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@----------- IPI show regs ----------- ^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 22
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: d7430000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: 00000000 CR3: 00474000 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ Dazed and confused, but trying to continue
^M^@Do you have a strange power saving mode enabled?
^M^@----------- IPI show regs -----------
^M^@Pid: 0, comm: swapper
^M^@EIP: 0060:[<c0100bd3>] CPU: 1
^M^@EIP is at default_idle+0x23/0x2c
^M^@ EFLAGS: 00000246 Not tainted (2.6.12-rc6-mm1-autokern1)
^M^@EAX: 00000000 EBX: c0476020 ECX: c0100bb0 EDX: 003a2f43
^M^@ESI: c13fc000 EDI: c0470300 EBP: c0470300 DS: 007b ES: 007b
^M^@CR0: 8005003b CR2: b7ee1d9c CR3: 17771640 CR4: 000006b0
^M^@ [<c0100ca3>] cpu_idle+0x7b/0x8c
^M^@ [<c010e79d>] start_secondary+0x13d/0x140
^M^@ ^M

--- ./arch/i386/kernel/traps.c.xxx 2005-05-10 18:27:04.000000000 +0400
+++ ./arch/i386/kernel/traps.c 2005-06-10 14:18:32.000000000 +0400
@@ -574,6 +574,14 @@ void die_nmi (struct pt_regs *regs, cons
do_exit(SIGSEGV);
}

+static int dummy_nmi_callback(struct pt_regs * regs, int cpu)
+{
+ return 0;
+}
+
+static nmi_callback_t nmi_callback = dummy_nmi_callback;
+static nmi_callback_t nmi_ipi_callback = dummy_nmi_callback;
+
static void default_do_nmi(struct pt_regs * regs)
{
unsigned char reason = 0;
@@ -596,6 +604,9 @@ static void default_do_nmi(struct pt_reg
return;
}
#endif
+ if (nmi_ipi_callback != dummy_nmi_callback)
+ return;
+
unknown_nmi_error(reason, regs);
return;
}
@@ -612,14 +623,6 @@ static void default_do_nmi(struct pt_reg
reassert_nmi();
}

-static int dummy_nmi_callback(struct pt_regs * regs, int cpu)
-{
- return 0;
-}
-
-static nmi_callback_t nmi_callback = dummy_nmi_callback;
-static nmi_callback_t nmi_ipi_callback = dummy_nmi_callback;
-
fastcall void do_nmi(struct pt_regs * regs, long error_code)
{
int cpu;

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