Hi Ingo,
ftrace-cmd in -w option when being run for sometime cause this.
llm11.in.ibm.com login: [ 1002.937490] BUG: unable to handle kernel paging request at 285b0010
[ 1002.947087] IP: [<c015f7b5>] find_next_entry+0x4f/0x84
[ 1002.955091] *pdpt = 000000002d589001 *pde = 0000000000000000
[ 1002.963651] Oops: 0000 [#1] SMP
[ 1002.967082] Modules linked in:
[ 1002.967082]
[ 1002.967082] Pid: 16350, comm: cat Not tainted (2.6.25-rc2-sched-devel #9)
[ 1002.967082] EIP: 0060:[<c015f7b5>] EFLAGS: 00010206 CPU: 0
[ 1002.967082] EIP is at find_next_entry+0x4f/0x84
[ 1002.967082] EAX: f6db2c60 EBX: 00000001 ECX: 00000001 EDX: f6db2c60
[ 1002.967082] ESI: 285b0000 EDI: c0850e00 EBP: eed23f04 ESP: eed23eec
[ 1002.967082] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 1002.967082] Process cat (pid: 16350, ti=eed22000 task=f0164620 task.ti=eed22000)
[ 1002.967082] Stack: 00000000 eed23f0c f61ba550 f61ba550 f61ba550 eed23f54 eed23f18 c015f806
[ 1002.967082] ffffffff f61ba550 f61ba550 eed23f38 c015f8ae 00007334 f6dccfc0 f61ba5e8
[ 1002.967082] c0582970 f61ba5e8 f61ba550 eed23f70 c01998a8 00000f96 00000000 00001000
[ 1002.967082] Call Trace:
[ 1002.967082] [<c015f806>] ? find_next_entry_inc+0x1c/0x80
[ 1002.967082] [<c015f8ae>] ? s_next+0x44/0x7e
[ 1002.967082] [<c01998a8>] ? seq_read+0x176/0x252
[ 1002.967082] [<c0182be6>] ? vfs_read+0x90/0x108
[ 1002.967082] [<c0182ea2>] ? sys_read+0x40/0x65
[ 1002.967082] [<c0105a5a>] ? sysenter_past_esp+0x5f/0x99
[ 1002.967082] =======================
[ 1002.967082] Code: e8 2d b2 0e 00 83 f8 07 89 c3 7f 3c 8b 54 87 14 83 3a 00 74 25 50 8b 4d f0 89 f8 e8 41 ff ff ff 59 85 c0 89 c2 74 13 85 f6 74 0a <8b> 46 10 2b 42 10 8
[ 1002.967082] EIP: [<c015f7b5>] find_next_entry+0x4f/0x84 SS:ESP 0068:eed23eec
[ 1002.967200] Kernel panic - not syncing: Fatal exception
I can send you complete dmesg offlist as it has only trace data. .config
is the same as before (expect CONFIG_SMP is now on)
--
regards,
Dhaval
Dhaval Giani wrote:
> Hi Ingo,
>
> ftrace-cmd in -w option when being run for sometime cause this.
>
>
> llm11.in.ibm.com login: [ 1002.937490] BUG: unable to handle kernel paging request at 285b0010
> [ 1002.947087] IP: [<c015f7b5>] find_next_entry+0x4f/0x84
>
Dhaval,
First, thanks for testing!!!!
Are you running the -mm kernel or sched-devel? This will let me know
which version you have. I'm working on a queue of fixes for Ingo now,
to incorporate into sched-devel (and later pass to Andrew for -mm). I'm
not sure if the new fixes will help you, but we need to get in sync, so
that we are both looking at the same version of the code.
Thanks,
-- Steve
On Wed, Feb 20, 2008 at 10:02:18AM -0500, Steven Rostedt wrote:
> Dhaval Giani wrote:
>> Hi Ingo,
>>
>> ftrace-cmd in -w option when being run for sometime cause this.
>>
>>
>> llm11.in.ibm.com login: [ 1002.937490] BUG: unable to handle kernel paging request at 285b0010
>> [ 1002.947087] IP: [<c015f7b5>] find_next_entry+0x4f/0x84
>>
>
> Dhaval,
>
> First, thanks for testing!!!!
>
If it helps solve difficult problems, its the best tool ever! :)
> Are you running the -mm kernel or sched-devel? This will let me know which
> version you have. I'm working on a queue of fixes for Ingo now, to
> incorporate into sched-devel (and later pass to Andrew for -mm). I'm not
> sure if the new fixes will help you, but we need to get in sync, so that we
> are both looking at the same version of the code.
>
sched-devel as of yesterday. (I don't think anything new has gone in
today).
[sorry, not had enough time to get to the bottom of this the last few
days]
--
regards,
Dhaval
Dhaval Giani wrote:
> sched-devel as of yesterday. (I don't think anything new has gone in
> today).
I just sent Ingo my fixes a few minutes ago. You may want to keep an I
out on updates to sched-devel.
>
> [sorry, not had enough time to get to the bottom of this the last few
> days]
>
No prob.
-- Steve
* Steven Rostedt <[email protected]> wrote:
>> sched-devel as of yesterday. (I don't think anything new has gone in
>> today).
>
> I just sent Ingo my fixes a few minutes ago. You may want to keep an I
> out on updates to sched-devel.
it's now all up in sched-devel.git.
Ingo