* ftrace causing panics. [not found] ` <20080219161608.GA1347@elte.hu> @ 2008-02-19 17:38 ` Dhaval Giani 2008-02-20 15:02 ` Steven Rostedt 0 siblings, 1 reply; 5+ messages in thread From: Dhaval Giani @ 2008-02-19 17:38 UTC (permalink / raw) To: Ingo Molnar; +Cc: srostedt, Peter Zijlstra, lkml 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: ftrace causing panics. 2008-02-19 17:38 ` ftrace causing panics Dhaval Giani @ 2008-02-20 15:02 ` Steven Rostedt 2008-02-20 15:28 ` Dhaval Giani 0 siblings, 1 reply; 5+ messages in thread From: Steven Rostedt @ 2008-02-20 15:02 UTC (permalink / raw) To: Dhaval Giani; +Cc: Ingo Molnar, Peter Zijlstra, lkml 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: ftrace causing panics. 2008-02-20 15:02 ` Steven Rostedt @ 2008-02-20 15:28 ` Dhaval Giani 2008-02-20 15:42 ` Steven Rostedt 0 siblings, 1 reply; 5+ messages in thread From: Dhaval Giani @ 2008-02-20 15:28 UTC (permalink / raw) To: Steven Rostedt; +Cc: Ingo Molnar, Peter Zijlstra, lkml 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: ftrace causing panics. 2008-02-20 15:28 ` Dhaval Giani @ 2008-02-20 15:42 ` Steven Rostedt 2008-02-20 15:46 ` Ingo Molnar 0 siblings, 1 reply; 5+ messages in thread From: Steven Rostedt @ 2008-02-20 15:42 UTC (permalink / raw) To: Dhaval Giani; +Cc: Ingo Molnar, Peter Zijlstra, lkml 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: ftrace causing panics. 2008-02-20 15:42 ` Steven Rostedt @ 2008-02-20 15:46 ` Ingo Molnar 0 siblings, 0 replies; 5+ messages in thread From: Ingo Molnar @ 2008-02-20 15:46 UTC (permalink / raw) To: Steven Rostedt; +Cc: Dhaval Giani, Peter Zijlstra, lkml * Steven Rostedt <srostedt@redhat.com> 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-02-20 15:48 UTC | newest]
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[not found] ` <20080219161608.GA1347@elte.hu>
2008-02-19 17:38 ` ftrace causing panics Dhaval Giani
2008-02-20 15:02 ` Steven Rostedt
2008-02-20 15:28 ` Dhaval Giani
2008-02-20 15:42 ` Steven Rostedt
2008-02-20 15:46 ` Ingo Molnar
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