* Re: 2.6.26.5-rt9
2008-09-11 20:54 2.6.26.5-rt9 Steven Rostedt
@ 2008-09-12 20:27 ` Robert Schwebel
2008-09-12 20:51 ` 2.6.26.5-rt9 Steven Rostedt
0 siblings, 1 reply; 4+ messages in thread
From: Robert Schwebel @ 2008-09-12 20:27 UTC (permalink / raw)
To: Steven Rostedt; +Cc: LKML, RT, Ingo Molnar, Thomas Gleixner
On Thu, Sep 11, 2008 at 04:54:01PM -0400, Steven Rostedt wrote:
> We are pleased to announce the 2.6.26.5-rt9 tree, which can be
> downloaded from the location:
On the MPC5121e-ADS (Powerpc 32) I get this oops during my boot sequence when
enabling CONFIG_DYNAMIC_FTRACE. Without that option the oops doesn't happen.
----------8<----------
starting network interfaces...
lo Link encap:Local Loopback
eth0 Link encap:Ethernet HWaddr 00:1E:59:2F:03:60
/etc/network/can-pre-up: line 7: can0: not found
starting inetd...done
thttpd: starting
thttpd: done
pure-ftpd: no /etc/pure-ftpd.defaults found.
/usr/sbin/pure-ftpd
pure-ftpd: starting pure-ftpd: /usr/sbin/pure-ftpd
Unable to handle kernel paging request for data at address 0x28002846
Faulting instruction address: 0xc00784c0
Oops: Kernel access of bad area, sig: 11 [#1]
PREEMPT MPC5121 ADS
Modules linked in:
NIP: c00784c0 LR: c0078864 CTR: c001af30
REGS: df213cc0 TRAP: 0300 Not tainted (2.6.26.5-rt9)
MSR: 00009032 <EE,ME,IR,DR> CR: 22002848 XER: 00000000
DAR: 28002846, DSISR: 20000000
TASK = df1d8600[437] 'S05_pureftpd' THREAD: df212000
GPR00: c0078864 df213d70 df1d8600 c028cc18 c028cf7c c03694f8 00000000 00000000
GPR08: c0360000 00000000 0014484b df213d70 a90fa2f9 10075c60 1fffe000 00800000
GPR16: ffffffff 00000000 007fff00 00000000 4801e758 df4151d8 00000003 df212000
GPR24: df1d25b0 20000000 28002842 df4152a8 00000901 00000000 0014384c df213d70
NIP [c00784c0] filemap_fault+0x68/0x43c
LR [c0078864] filemap_fault+0x40c/0x43c
Call Trace:
[df213d70] [c0078864] filemap_fault+0x40c/0x43c (unreliable)
[df213db0] [c0088930] __do_fault+0x70/0x400
[df213e00] [c0088d38] do_linear_fault+0x78/0x90
[df213e30] [c008aa4c] handle_mm_fault+0x100/0x300
[df213e70] [c0014438] do_page_fault+0x2cc/0x44c
[df213f40] [c0012964] handle_page_fault+0xc/0x80
--- Exception: 401 at 0xfecb104
LR = 0xfecd648
Instruction dump:
82bb0000 4bfa2b1d 83b50040 83d50044 38600001 4bfa2a81 54370024 80170034
70090004 408203ac 315e0fff 7d3d0194 <809a0004> 554ca33e 512ca016 7d2b6670
---[ end trpure-ftpd: no upload script defined, skipping
ace 6421ec44c27aeb2b ]---
done
----------8<----------
This is where 0xc00784c0 points to:
----------8<----------
c0078458 <filemap_fault>:
c0078458: 7c 08 02 a6 mflr r0
c007845c: 90 01 00 04 stw r0,4(r1)
c0078460: 4b f9 a9 f1 bl c0012e50 <_mcount>
c0078464: 94 21 ff c0 stwu r1,-64(r1)
c0078468: 7c 08 02 a6 mflr r0
c007846c: be 81 00 10 stmw r20,16(r1)
c0078470: 7c 3f 0b 78 mr r31,r1
c0078474: 7c 79 1b 78 mr r25,r3
c0078478: 90 01 00 44 stw r0,68(r1)
c007847c: 7c 9a 23 78 mr r26,r4
c0078480: 83 83 00 48 lwz r28,72(r3)
c0078484: 38 60 00 01 li r3,1
c0078488: 83 7c 00 dc lwz r27,220(r28)
c007848c: 3b 1c 00 90 addi r24,r28,144
c0078490: 82 bb 00 00 lwz r21,0(r27)
c0078494: 4b fa 2b 1d bl c001afb0 <add_preempt_count>
c0078498: 83 b5 00 40 lwz r29,64(r21)
c007849c: 83 d5 00 44 lwz r30,68(r21)
c00784a0: 38 60 00 01 li r3,1
c00784a4: 4b fa 2a 81 bl c001af24 <sub_preempt_count>
c00784a8: 54 37 00 24 rlwinm r23,r1,0,0,18
c00784ac: 80 17 00 34 lwz r0,52(r23)
c00784b0: 70 09 00 04 andi. r9,r0,4
c00784b4: 40 82 03 ac bne- c0078860 <filemap_fault+0x408>
c00784b8: 31 5e 0f ff addic r10,r30,4095
c00784bc: 7d 3d 01 94 addze r9,r29
c00784c0: 80 9a 00 04 lwz r4,4(r26)
c00784c4: 55 4c a3 3e rlwinm r12,r10,20,12,31
c00784c8: 51 2c a0 16 rlwimi r12,r9,20,0,11
c00784cc: 7d 2b 66 70 srawi r11,r9,12
c00784d0: 7f 84 60 40 cmplw cr7,r4,r12
c00784d4: 40 9c 02 50 bge- cr7,c0078724 <filemap_fault+0x2cc>
c00784d8: 80 19 00 14 lwz r0,20(r25)
----------8<----------
rsc
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Handelsregister: Amtsgericht Hildesheim, HRA 2686
Hannoversche Str. 2, 31134 Hildesheim, Germany
Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9
^ permalink raw reply [flat|nested] 4+ messages in thread