Re: 2.6.17-rc6-rt3

["K.R. Foley" <kr@cybsft.com>]

Bruce Eleniak wrote:
> Bruce Eleniak wrote:
>> K.R. Foley wrote:
>>> Thomas Gleixner wrote:
>>>  
>>>> On Mon, 2006-06-12 at 12:19 -0500, K.R. Foley wrote:
>>>>   
>>>>>> BUG: unable to handle kernel paging request at virtual address
>>>>>> f3010000
>>>>>>  printing eip:
>>>>>> *pde = 00000000
>>>>>> Oops: 0000 [#1]
>>>>>> PREEMPT SMP
>>>>>> Modules linked in:
>>>>>> CPU:    1
>>>>>> EIP:    0060:[<c0132f9c>]    Not tainted VLI
>>>>>> EFLAGS: 00010297   (2.6.17-rc6-rt4 #10)
>>>>>> EIP is at lookup_symbol+0x11/0x35
>>>>>> eax: 00000001   ebx: e083185c   ecx: c02f20c4   edx: c02f0000
>>>>>> esi: f3010000   edi: e083185c   ebp: df597e80   esp: df597e74
>>>>>> ds: 007b   es: 007b   ss: 0068   preempt: 00000001
>>>>>> Process modprobe (pid: 1419, threadinfo=df596000 task=dec3ac90
>>>>>> stack_left=7744 worst_left=-1)
>>>>>> Stack: e083b580 00000bf0 e083185c df597e9c c0132fe5 df597eb4 df597eb0
>>>>>> e083b580
>>>>>>        00000bf0 e083185c df597ec4 c0133c93 00000001 00000012 e082dde8
>>>>>> 00000000
>>>>>>        df597ed8 e0839200 00000bf0 e082dde8 df597ee8 c01341fa e083b580
>>>>>> 00000000
>>>>>> Call Trace:
>>>>>>  [<c01036a1>] show_stack_log_lvl+0x82/0x8a (36)
>>>>>>  [<c0103821>] show_registers+0x139/0x1a1 (32)
>>>>>>  [<c0103a15>] die+0x118/0x1df (60)
>>>>>>  [<c0110cf3>] do_page_fault+0x45c/0x532 (76)
>>>>>>  [<c010336b>] error_code+0x4f/0x54 (72)
>>>>>>  [<c0132fe5>] __find_symbol+0x25/0x1b7 (28)
>>>>>>  [<c0133c93>] resolve_symbol+0x27/0x5f (40)
>>>>>>  [<c01341fa>] simplify_symbols+0x83/0xf3 (36)
>>>>>>  [<c0134e31>] load_module+0x668/0x9e2 (184)
>>>>>>  [<c0135210>] sys_init_module+0x42/0x1a4 (20)
>>>>>>  [<c01027fb>] sysenter_past_esp+0x54/0x75 (-8116)
>>>>>> Code: eb 11 8b 75 f0 41 83 c2 28 0f b7 46 30 39 c1 72 c9 31 c0 5a
>>>>>> 59 5b
>>>>>> 5e 5f 5d c3 55 89 e5 57 56 53 89 c3 39 ca 73 22 8b 72 04 89 df
>>>>>> <ac> ae
>>>>>> 75 08 84 c0 75 f8 31 c0 eb 04 19 c0 0c 01 85 c0 75 04 89
>>>>>> EIP: [<c0132f9c>] lookup_symbol+0x11/0x35 SS:ESP 0068:df597e74
>>>>>>         
>>>>> DOH! That was actually 2.6.17-rc6-rt4. Sorry.
>>>>>       
>>>> Which module is it trying to load ?
>>>>
>>>>     tglx
>>>>     
>>>
>>> Can't really say which it is trying to load when it dies. The lines
>>> below are the lines that immediately preceed the oops.
>>>
>>> NET: Registered protocol family 1
>>> input: AT Translated Set 2 keyboard as /class/input/input0
>>> NET: Registered protocol family 17
>>> NET: Registered protocol family 8
>>> NET: Registered protocol family 20
>>> Starting balanced_irq
>>> Using IPI Shortcut mode
>>> Time: tsc clocksource has been installed.
>>> hrtimers: Switched to high resolution mode CPU 3
>>> hrtimers: Switched to high resolution mode CPU 2
>>> hrtimers: Switched to high resolution mode CPU 1
>>> hrtimers: Switched to high resolution mode CPU 0
>>> *****************************************************************************
>>>
>>> *
>>>     *
>>> *  REMINDER, the following debugging option is turned on in your
>>> .config:   *
>>> *
>>>     *
>>> *        CONFIG_DEBUG_RT_MUTEXES
>>>      *
>>> *
>>>     *
>>> *  it may increase runtime overhead and latencies.
>>>     *
>>> *
>>>     *
>>> *****************************************************************************
>>>
>>> Freeing unused kernel memory: 200k freed
>>> input: ImExPS/2 Generic Explorer Mouse as /class/input/input1
>>> kjournald starting.  Commit interval 5 seconds
>>> EXT3-fs: mounted filesystem with ordered data mode.
>>>
>>>   
>> Similar for me on a dual Xeon 3.2 with 2.6.17-rc6-rt4:
>>
>> *****************************************************************************
>>
>> Time: tsc clocksource has been installed.
>> hrtimers: Switched to high resolution mode CPU 0
>> hrtimers: Switched to high resolution mode CPU 1
>> *                                                                          
>> *
>> *  REMINDER, the following debugging option is turned on in your
>> .config:   *
>> *                                                                          
>> *
>> *       
>> CONFIG_DEBUG_RT_MUTEXES                                             *
>> *                                                                          
>> *
>> *  it may increase runtime overhead and
>> latencies.                          *
>> *                                                                          
>> *
>> *****************************************************************************
>>
>> Freeing unused kernel memory: 208k freed
>> Red Hat nash version 4.1.18.1 starting
>> Mounted /proc filesystem
>> Mounting sysfs
>> Creating /dev
>> Starting udev
>> Loading jbd.ko mBUG: unable to handle kernel paging request at virtual
>> address 75010000
>> printing eip:
>> c0135679
>> *pde = 00000000
>> Oops: 0000 [#1]
>> PREEMPT SMP
>> Modules linked in:
>> CPU:    1
>> Eodule
>> IP:    0060:[<c0135679>]    Not tainted VLI
>> EFLAGS: 00010297   (2.6.17-rc6-rt5 #1)
>> EIP is at lookup_symbol+0xe/0x31
>> eax: ffffffff   ebx: f881a7d2   ecx: c0332f3c   edx: c03309d8
>> esi: 75010000   edi: f881a7d2   ebp: f7f27ec0   esp: f7f27e8c
>> ds: 007b   es: 007b   ss: 0068   preempt: 00000001
>> Process insmod (pid: 293, threadinfo=f7f27000 task=f7f360f0
>> stack_left=3672 worst_left=-1)
>> Stack: f882e520 000010a0 f881a7d2 c01356bd f7f27ebc f882e520 000010a0
>> f881a7d2
>>       00000012 c013630c 00000001 f881752c 00000000 c0334284 f882abc0
>> 000010a0
>>       f881752c 0000008f c0136859 f882e520 00000000 f881931c f882e52c
>> f882e52d
>> Call Trace:
>> [<c01356bd>] __find_symbol+0x21/0x1b3 (16)
>> [<c013630c>] resolve_symbol+0x27/0x61 (24)
>> [<c0136859>] simplify_symbols+0x85/0xf7 (36)
>> [<c0137532>] load_module+0x73f/0xaf9 (32)
>> [<c013373e>] try_to_take_rt_mutex+0x165/0x172 (20)
>> [<c013792f>] sys_init_module+0x24/0x1a0 (16)
>> [<c013794d>] sys_init_module+0x42/0x1a0 (144)
>> [<c01032d3>] sysenter_past_esp+0x54/0x75 (16)
>> Code: 01 85 c0 75 04 89 c8 eb 0e 0f b7 45 30 41 83 c2 28 39 c1 72 cb
>> 31 c0 5a 5b 5e 5f 5d c3 57 56 53 89 c3 39 ca 73 22 8b 72 04 89 df <ac>
>> ae 75 08 84 c0 75 f8 31 c0 eb 04 19 c0 0c 01 85 c0
>>
>>
> Whoops.  2.6.17-rc6-rt5 sorry.  FWIW, Thomas' 2.6.17-rc6-hrt4 runs fine
> in isolation from the rt patchset.
> 

Everything from 2.6.17-rc6-rt3 forward dies for sure on all my SMP boxes
with the same error above. I also had problems with 2.6.17-rc6-rt1, but
I can't say for sure if they were the same problems. I just haven't had
time this week to dig into it much more.

-- 
   kr