Greetings,
I get an oops kernel panic. I have general quesiton about reading the
output. Any info about reading the following ksymoops output will be highly
appreciated. Please note, I am not asking a hardware specific quesiton, or
to solve my oops issue, but how to read this output, and track it back to
the src code
**********************************************************************
root@172.20.1.151:~/sandeep# ksymoops -m /System.map -v /vmlinux out
ksymoops 2.4.3 on armv4b 2.4.17_mvl21-ixm1200. Options used
-v /vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.17_mvl21-ixm1200/ (default)
-m /System.map (specified)
Warning (compare_maps): ksyms_base symbol fp_printk not found in vmlinux.
Ignorin
g ksyms_base entry
Warning (compare_maps): ksyms_base symbol fp_send_sig not found in vmlinux.
Ignor
ing ksyms_base entry
Warning (compare_maps): ksyms_base symbol kern_fp_enter not found in
vmlinux. Ign
oring ksyms_base entry
Unable to handle kernel paging request at virtual address 06070899
*pgd = 00000000, *pmd = 00000000
Internal error: Oops: 0
CPU: 0
pc : [<c006e2a8>] lr : [<c006f060>] Tainted: PF
Using defaults from ksymoops -t elf32-bigarm -a arm
sp : c03cbedc ip : c03cbeec fp : c03cbf24
r10: c7f0d001 r9 : 00000009 r8 : c03ca000
Warning (Oops_set_i370_regs): garbage 'r9 : 00000009 r8 : c03ca000' at end
of i37
0 register line ignored
r7 : c03cbf58 r6 : 06070809 r5 : c7f0d000 r4 : 00000000
r3 : c03ca000 r2 : c03ce420 r1 : 00000001 r0 : 06070809
Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user
Control: C002D1FF Table: C002D1FF DAC: 00000015
Process init (pid: 1, stackpage=c03cb000)
Stack: (0xc03cbecc to 0xc03cc000)
bec0: c006f060 c006e2a8 60000013 ffffffff
c03cbf24
bee0: c03cbeec c006f060 c006e2ac c00736fc c03ca000 c015ae40 0000e2e4
00000000
bf00: c7f0d000 c03cbf58 00000009 c0037b64 c03ca000 401389e4 c03cbf34
c03cbf28
bf20: c006f0a0 c006e74c c03cbf54 c03cbf38 c006f61c c006f08c c03cbf58
bffff8c8
bf40: bffff7f0 000000c3 c03cbf8c c03cbf58 c006b9b8 c006f5cc c03ce420
c037b2e0
bf60: 00016604 c03cbf8c c03cbf74 00000009 00000001 bffffbb0 bffff8c8
bffffbac
bf80: 00000000 c03cbf90 c00379e0 c006b9a0 bffffbb0 c003e070 0000e2e4
bffff7f0
bfa0: 4013e890 0000182c bffffbb0 bffff8c8 bffffbac bffff7f0 00000003
0000e2e4
bfc0: 401389e4 bffff8b8 bffff8bc bffff7ec 0000c5e8 400df710 60000010
0000e2e4
bfe0: 00008000 c016f9a0 c014fbdc c014fbd0 00000000 c03cc000 c0038dc4
c0037244
Backtrace:
Function entered at [<c006e740>] from [<c006f0a0>]
Function entered at [<c006f080>] from [<c006f61c>]
Function entered at [<c006f5c0>] from [<c006b9b8>]
r7 = 000000C3 r6 = BFFFF7F0 r5 = BFFFF8C8 r4 = C03CBF58
Function entered at [<c006b994>] from [<c00379e0>]
r6 = BFFFFBAC r5 = BFFFF8C8 r4 = BFFFFBB0
Code: e1a0c00d e92dd800 (e5903090) e24cb004 e3530000
>>PC; c006e2a8 <permission+8/38> <=====
>>r10; c7f0d000 <_end+7d99c24/8690c24>
Trace; c006e740 <link_path_walk+0/940>
Trace; c006f0a0 <path_walk+20/24>
Trace; c006f080 <path_walk+0/24>
Trace; c006f61c <__user_walk+5c/7c>
Trace; c006f5c0 <__user_walk+0/7c>
Trace; c006b9b8 <sys_stat64+24/8c>
Trace; c006b994 <sys_stat64+0/8c>
Trace; c00379e0 <ret_fast_syscall+0/38>
Code; c006e2a0 <permission+0/38>
00000000 <_PC>:
Code; c006e2a0 <permission+0/38>
0: e1a0c00d mov ip, sp
Code; c006e2a4 <permission+4/38>
4: e92dd800 stmdb sp!, {fp, ip, lr, pc}
Code; c006e2a8 <permission+8/38> <=====
8: e5903090 ldr r3, [r0, #144] <=====
Code; c006e2ac <permission+c/38>
c: e24cb004 sub fp, ip, #4 ; 0x4
Code; c006e2b0 <permission+10/38>
10: e3530000 cmp r3, #0 ; 0x0
Kernel panic: Attempted to kill init!
4 warnings issued. Results may not be reliable.
root@172.20.1.151:~/sandeep#
**********************************************************************
One question specific to this output, why am I getting the warnings?
How can I get rid of them?
Thanks in advance,
Ahmed.
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