Re: panic on acpi_cpu_c1()

Anonymous wrote:
> Hans Ottevanger <hansot_at_iae.nl> writes:
> 
>> Norikatsu Shigemura wrote:
>>> Hi.
>>>
>> Hi,
>>
>> I have almost the same issue, just the addresses are different and in
>> my case the trap occurs on cpu2.
>>
>> My system is based on an Intel PB965LT main board with a Q6600 quad
>> core CPU and 8 Gbyte of RAM. I am also using the amd64 kernel, where
>> kernel configuration is almost identical to GENERIC, with devices
>> removed that I do not have and the following lines added
>>
>> device          drm
>> device          radeondrm
>> device          sound
>> device          snd_hda
>>
>> If I remove the drm and radeondrm devices from the config file and
>> recompile the kernel, the panic does not occur and the corresponding
>> modules can be loaded without a problem.
> 
> Can you try to boot with DRM and hw.drm.msi=0? In my case it does not
> panic then.
> 

Hi,

I have just tried this with r195137 and the drm devices described above 
in my kernel configuration file. If I specify "set hw.drm.msi=0" from 
the loader prompt -no- panic occurs, otherwise it does. So it appears 
that this workaround works.

Kind regards,

Hans

>> Some "binary searching" of Subversion releases shows that the problem
>> first occurs with r194985. If I update to r195137 and revert the
>> relevant files from the revision r194985 to r194984, no panic occurs.
>>
>> Of course it could very well be that r194985 itself is not the issue,
>> but triggers a problem somewhere else in the kernel.
>>
>> Kind regards,
>>
>> Hans
>>
>>> 	I got a panic after AP CPU launched on boot.  So I couldn't get
>>> 	crash dump and information.
>>>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> FreeBSD nadesico.ninth-nine.com 8.0-CURRENT FreeBSD 8.0-CURRENT #49: Sun Jun 28 02:53:48 JST 2009     nork_at_nadesico.ninth-nine.com:/usr/obj/usr/src/sys/NADESICO  amd64
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> SMP: AP CPU #3 Launched!
>>> SMP: AP CPU #1 Launched!
>>> SMP: AP CPU #2 Launched!
>>>
>>> Fatal trap 30: reserved (unknown) fault while in kernel mode
>>> cpuid = 3; apic id = 03
>>> instruction pointer     = 0x20:0xffffffff804bce56
>>> stack pointer           = 0x20:0xffffff8000039b60
>>> frame pointer           = 0x20:0xffffff8000039b70
>>> code segment            = base 0x0, limit 0xfffff, type 0x1b
>>>                         = DPL 0, pres 1, long 1, def32 0, gran 1
>>> processor eflags        = interrupt enabled, IOPL = 0
>>> current process         = 11 (idle: cpu3)
>>> [thread pid 11 tid 100003 ]
>>> Stopped at      acpi_cpu_c1+0x6:        leave
>>> db> bt
>>> Tracing pid 11 tid 100003 td 0xffffff8001863720
>>> acpi_cpu_c1() at acpi_cpu_c1+0x6
>>> acpi_cpu_idle() at acpi_cpu_idle+0x20c
>>> sched_idletd() at sched_idletd+0x123
>>> fork_exit() at fork_exit+0x117
>>> fork_trampoline() at fork_trampoline+0xe
>>> --- trap 0, rip = 0, rsp = 0xffffff8000039d40, rbp = 0 ---
>>> db>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>>
>>> 	I can boot with kern.smp.diabled=1, so I get address lines.
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> (kgdb) list *acpi_cpu_c1+0x6
>>> 0xffffffff804bce56 is in acpi_cpu_c1 (/usr/src/sys/amd64/acpica/acpi_machdep.c:100).
>>> 95
>>> 96      void
>>> 97      acpi_cpu_c1()
>>> 98      {
>>> 99              __asm __volatile("sti; hlt");
>>> 100     }
>>> (kgdb) list *acpi_cpu_idle+0x20c
>>> 0xffffffff801b443c is in acpi_cpu_idle (/usr/src/sys/dev/acpica/acpi_cpu.c:966).
>>> 961         ACPI_ENABLE_IRQS();
>>> 962
>>> 963         /* Find the actual time asleep in microseconds. */
>>> 964         end_time = acpi_TimerDelta(end_time, start_time);
>>> 965         sc->cpu_prev_sleep = (sc->cpu_prev_sleep * 3 + PM_USEC(end_time)) / 4;
>>> 966     }
>>> (kgdb) list *sched_idletd+0x123
>>> 0xffffffff8030b733 is in sched_idletd (/usr/src/sys/kern/sched_ule.c:2562).
>>> 2557                                    cpu_spinwait();
>>> 2558                            }
>>> 2559                    }
>>> 2560                    switchcnt = tdq->tdq_switchcnt + tdq->tdq_oldswitchcnt;
>>> 2561                    if (tdq->tdq_load == 0)
>>> 2562                            cpu_idle(switchcnt > 1);
>>> 2563                    if (tdq->tdq_load) {
>>> 2564                            thread_lock(td);
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>