Ingo Molnar wrote:
i have released the -V0.7.48-00 Real-Time Preemption patch, which can be
downloaded from the usual place:
Ingo,
I just got this soft lock with -RT-2.6.12-rc6-V0.7.48-32 on my dual 2.6G
Xeon W/HT. Not sure what causes it. Just typing away and its like a key
sticks. It keeps printing the same key, even if I use the mouse to
change focus the typing follows the focus, and then it finally hangs.
Jun 14 13:07:40 swdev14 kernel: BUG: soft lockup detected on CPU#1!
Jun 14 13:07:40 swdev14 kernel:
Jun 14 13:07:40 swdev14 kernel: Pid: 13, comm: softirq-timer/1
Jun 14 13:07:40 swdev14 kernel: EIP: 0060:[<c02c5608>] CPU: 1
Jun 14 13:07:40 swdev14 kernel: EIP is at _raw_spin_lock+0x69/0x85
Jun 14 13:07:40 swdev14 kernel: EFLAGS: 00000202 Not tainted
(2.6.12-rc6-RT-V0.7.48-32)
Jun 14 13:07:40 swdev14 kernel: EAX: 00000001 EBX: c141f804 ECX:
c02c55ba EDX: 00000000
Jun 14 13:07:40 swdev14 kernel: ESI: c1560000 EDI: c0727520 EBP:
c1561e2c DS: 007b ES: 007b
Jun 14 13:07:40 swdev14 kernel: CR0: 8005003b CR2: b7fe0000 CR3:
1ff55000 CR4: 000006d0
Jun 14 13:07:40 swdev14 kernel: [<c01014d2>] show_regs+0x14b/0x175 (36)
Jun 14 13:07:40 swdev14 kernel: [<c01436b2>] softlockup_tick+0x75/0x86 (28)
Jun 14 13:07:40 swdev14 kernel: [<c010815c>] timer_interrupt+0x39/0x9e (20)
Jun 14 13:07:40 swdev14 kernel: [<c0143981>] handle_IRQ_event+0x6a/0xe4
(52)
Jun 14 13:07:40 swdev14 kernel: [<c0143b03>] __do_IRQ+0xec/0x159 (52)
Jun 14 13:07:40 swdev14 kernel: [<c01059fa>] do_IRQ+0x3a/0x4b (28)
Jun 14 13:07:40 swdev14 kernel: [<c0103d26>] common_interrupt+0x1a/0x20
(72)
Jun 14 13:07:40 swdev14 kernel: [<c0127a17>] __mod_timer+0xaa/0x17c (44)
Jun 14 13:07:40 swdev14 kernel: [<c020d302>] i8042_interrupt+0x26/0x241
(56)
Jun 14 13:07:40 swdev14 kernel: [<c0143981>] handle_IRQ_event+0x6a/0xe4
(52)
Jun 14 13:07:40 swdev14 kernel: [<c0143b03>] __do_IRQ+0xec/0x159 (52)
Jun 14 13:07:40 swdev14 kernel: [<c01059fa>] do_IRQ+0x3a/0x4b (28)
Jun 14 13:07:40 swdev14 kernel: [<c0103d26>] common_interrupt+0x1a/0x20
(64)
Jun 14 13:07:40 swdev14 kernel: [<c0128562>]
run_timer_softirq+0x25c/0x404 (64)
Jun 14 13:07:40 swdev14 kernel: [<c01245b2>] ksoftirqd+0xe9/0x19d (32)
Jun 14 13:07:40 swdev14 kernel: [<c013416b>] kthread+0xab/0xd3 (48)
Jun 14 13:07:40 swdev14 kernel: [<c0101501>]
kernel_thread_helper+0x5/0xb (1051320348)
Jun 14 13:07:40 swdev14 kernel: ---------------------------
Jun 14 13:07:40 swdev14 kernel: | preempt count: 20020005 ]
Jun 14 13:07:40 swdev14 kernel: | 5-level deep critical section nesting:
Jun 14 13:07:40 swdev14 kernel: ----------------------------------------
Jun 14 13:07:40 swdev14 kernel: .. [<c02c55ba>] ....
_raw_spin_lock+0x1b/0x85
Jun 14 13:07:40 swdev14 kernel: .....[<c012841e>] .. ( <=
run_timer_softirq+0x118/0x404)
Jun 14 13:07:40 swdev14 kernel: .. [<c02c55ba>] ....
_raw_spin_lock+0x1b/0x85
Jun 14 13:07:40 swdev14 kernel: .....[<c01279b1>] .. ( <=
__mod_timer+0x44/0x17c)
Jun 14 13:07:40 swdev14 kernel: .. [<c02c55ba>] ....
_raw_spin_lock+0x1b/0x85
Jun 14 13:07:40 swdev14 kernel: .....[<c010813c>] .. ( <=
timer_interrupt+0x19/0x9e)
Jun 14 13:07:40 swdev14 kernel: .. [<c02c55ba>] ....
_raw_spin_lock+0x1b/0x85
Jun 14 13:07:40 swdev14 kernel: .....[<c0143697>] .. ( <=
softlockup_tick+0x5a/0x86)
Jun 14 13:07:40 swdev14 kernel: .. [<c013d423>] .... print_traces+0x1b/0x52
Jun 14 13:07:40 swdev14 kernel: .....[<c01014d2>] .. ( <=
show_regs+0x14b/0x175)
--
kr
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