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SubjectRe: 2.4.20pre11aa1
Date
Hello Keith,

> You don't need that, just mkdir /var/log/ksymoops. modprobe/insmod
> will create a daily log file and snapshot a copy of lsmod and
> /proc/ksyms for every module loaded or unloaded. All with sync in the
> right places.

Thanks, and that works fine.

Hello Andrea,

1. To simplify and to prove that the crashes are associated with agpgart
and/or radeon I have compiled kernel with _only_ agpgart and radeon as
modules and nothing else.

$ cat /lib/modules/2.4.20-pre10aa1/modules.dep
/lib/modules/2.4.20-pre11aa1/kernel/drivers/char/agp/agpgart.o:

/lib/modules/2.4.20-pre11aa1/kernel/drivers/char/drm/radeon.o:

These are some decoded output of oops appeared in the system logs:
------------------------------------------------------------------------------------------------------
ksymoops 2.4.5 on i686 2.4.20-pre11aa1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.20-pre11aa1/ (default)
-m /boot/System.map-2.4.20-pre11aa1 (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Oct 18 00:29:02 localhost kernel: Unable to handle kernel paging request at
virtual address c73ae000
Oct 18 00:29:02 localhost kernel: c0210ee2
Oct 18 00:29:02 localhost kernel: *pde = 070001e3
Oct 18 00:29:02 localhost kernel: Oops: 0002 2.4.20-pre11aa1 #9 Fri Oct 18
00:06:42 EST 2002
Oct 18 00:29:02 localhost kernel: CPU: 0
Oct 18 00:29:02 localhost kernel: EIP: 0010:[<c0210ee2>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Oct 18 00:29:02 localhost kernel: EFLAGS: 00013246
Oct 18 00:29:02 localhost kernel: eax: 0000003f ebx: c73ae000 ecx:
c7c8c000 edx: 00000000
Oct 18 00:29:02 localhost kernel: esi: c2daffe0 edi: 00000fe0 ebp:
c113e204 esp: c7c8deac
Oct 18 00:29:02 localhost kernel: ds: 0018 es: 0018 ss: 0018
Oct 18 00:29:02 localhost kernel: Process modprobe (pid: 944,
stackpage=c7c8d000)
Oct 18 00:29:03 localhost kernel: Stack: 00104025 c01269b2 c73ae000 c7534bfc
bfff8e50 c2d9f480 c4e97a40 c0126dde
Oct 18 00:29:03 localhost kernel: c2d9f480 c4e97a40 c2daffe0 c7534bfc
00000001 bfff8e50 c7c8df24 c2d9f480
Oct 18 00:29:03 localhost kernel: c4e97a40 bfff8e50 c7c8c000 c011244a
c2d9f480 c4e97a40 bfff8e50 00000001
Oct 18 00:29:03 localhost kernel: Call Trace: [<c01269b2>] [<c0126dde>]
[<c011244a>] [<c0127bb6>] [<c0128cc7>]
Oct 18 00:29:03 localhost kernel: [<c0127ab1>] [<c01122a0>] [<c01075f0>]
Oct 18 00:29:03 localhost kernel: Code: 0f e7 03 0f e7 43 08 0f e7 43 10 0f e7
43 18 0f e7 43 20 0f


>>EIP; c0210ee2 <fast_clear_page+12/50> <=====

>>ebx; c73ae000 <END_OF_CODE+35e90a5/????>
>>ecx; c7c8c000 <END_OF_CODE+3ec70a5/????>
>>esi; c2daffe0 <_end+2ad7c48/3a47ce8>
>>edi; 00000fe0 Before first symbol
>>ebp; c113e204 <_end+e65e6c/3a47ce8>
>>esp; c7c8deac <END_OF_CODE+3ec8f51/????>

Trace; c01269b2 <do_anonymous_page+a2/110>
Trace; c0126dde <handle_mm_fault+8e/160>
Trace; c011244a <do_page_fault+1aa/5a0>
Trace; c0127bb6 <__vma_link+56/d0>
Trace; c0128cc7 <do_brk+1d7/210>
Trace; c0127ab1 <sys_brk+f1/130>
Trace; c01122a0 <do_page_fault+0/5a0>
Trace; c01075f0 <error_code+34/3c>

Code; c0210ee2 <fast_clear_page+12/50>
00000000 <_EIP>:
Code; c0210ee2 <fast_clear_page+12/50> <=====
0: 0f e7 03 movntq %mm0,(%ebx) <=====
Code; c0210ee5 <fast_clear_page+15/50>
3: 0f e7 43 08 movntq %mm0,0x8(%ebx)
Code; c0210ee9 <fast_clear_page+19/50>
7: 0f e7 43 10 movntq %mm0,0x10(%ebx)
Code; c0210eed <fast_clear_page+1d/50>
b: 0f e7 43 18 movntq %mm0,0x18(%ebx)
Code; c0210ef1 <fast_clear_page+21/50>
f: 0f e7 43 20 movntq %mm0,0x20(%ebx)
Code; c0210ef5 <fast_clear_page+25/50>
13: 0f 00 00 sldtl (%eax)

Oct 18 00:29:03 localhost kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 00000044
Oct 18 00:29:03 localhost kernel: c014ca41
Oct 18 00:29:03 localhost kernel: *pde = 0752b067
Oct 18 00:29:03 localhost kernel: Oops: 0000 2.4.20-pre11aa1 #9 Fri Oct 18
00:06:42 EST 2002
Oct 18 00:29:03 localhost kernel: CPU: 0
Oct 18 00:29:03 localhost kernel: EIP: 0010:[<c014ca41>] Not tainted
Oct 18 00:29:03 localhost kernel: EFLAGS: 00013217
Oct 18 00:29:03 localhost kernel: eax: dff32cf8 ebx: 00000010 ecx:
00000010 edx: dff00000
Oct 18 00:29:03 localhost kernel: esi: 00000000 edi: 00000000 ebp:
0003b0c1 esp: c64d9d74
Oct 18 00:29:03 localhost kernel: ds: 0018 es: 0018 ss: 0018
Oct 18 00:29:03 localhost kernel: Process X (pid: 945, stackpage=c64d9000)
Oct 18 00:29:03 localhost kernel: Stack: 00000000 00000000 00000000 00000000
00000000 dff32cf8 dfe66005 00000002
Oct 18 00:29:03 localhost kernel: dfe66005 dfe66007 00000000 c64d9e14
c014322b c16d7540 c64d9dd4 dfe66005
Oct 18 00:29:03 localhost kernel: c0143854 c16d7540 c64d9dd4 00000000
00000009 00000000 c16c29c0 00000000
Oct 18 00:29:03 localhost kernel: Call Trace: [<c014322b>] [<c0143854>]
[<c0143d37>] [<c0141187>] [<c0141af7>]
Oct 18 00:29:03 localhost kernel: [<c0132ecf>] [<c01314e5>] [<c0126510>]
[<c0126e69>] [<c011244a>] [<c0142fd7>]
Oct 18 00:29:03 localhost kernel: [<c0105c90>] [<c01074ff>]
Oct 18 00:29:03 localhost kernel: Code: 39 6e 44 8b 1b 75 e8 8b 7c 24 34 39 7e
0c 75 df 8b 57 4c 85


>>EIP; c014ca41 <d_lookup+61/110> <=====

>>eax; dff32cf8 <END_OF_CODE+1c16dd9d/????>
>>edx; dff00000 <END_OF_CODE+1c13b0a5/????>
>>ebp; 0003b0c1 Before first symbol
>>esp; c64d9d74 <END_OF_CODE+2714e19/????>

Trace; c014322b <cached_lookup+1b/70>
Trace; c0143854 <link_path_walk+3c4/6f0>
Trace; c0143d37 <path_lookup+37/40>
Trace; c0141187 <open_exec+27/e0>
Trace; c0141af7 <do_execve+27/220>
Trace; c0132ecf <__alloc_pages+5f/280>
Trace; c01314e5 <lru_cache_add+65/70>
Trace; c0126510 <do_wp_page+140/1f0>
Trace; c0126e69 <handle_mm_fault+119/160>
Trace; c011244a <do_page_fault+1aa/5a0>
Trace; c0142fd7 <getname+97/d0>
Trace; c0105c90 <sys_execve+50/80>
Trace; c01074ff <system_call+33/38>

Code; c014ca41 <d_lookup+61/110>
00000000 <_EIP>:
Code; c014ca41 <d_lookup+61/110> <=====
0: 39 6e 44 cmp %ebp,0x44(%esi) <=====
Code; c014ca44 <d_lookup+64/110>
3: 8b 1b mov (%ebx),%ebx
Code; c014ca46 <d_lookup+66/110>
5: 75 e8 jne ffffffef <_EIP+0xffffffef>
Code; c014ca48 <d_lookup+68/110>
7: 8b 7c 24 34 mov 0x34(%esp,1),%edi
Code; c014ca4c <d_lookup+6c/110>
b: 39 7e 0c cmp %edi,0xc(%esi)
Code; c014ca4f <d_lookup+6f/110>
e: 75 df jne ffffffef <_EIP+0xffffffef>
Code; c014ca51 <d_lookup+71/110>
10: 8b 57 4c mov 0x4c(%edi),%edx
Code; c014ca54 <d_lookup+74/110>
13: 85 00 test %eax,(%eax)

Oct 18 00:29:04 localhost kernel: <1>Unable to handle kernel paging request
at virtual address c6b917c4
Oct 18 00:29:04 localhost kernel: c0139920
Oct 18 00:29:04 localhost kernel: *pde = 0748a163
Oct 18 00:29:04 localhost kernel: Oops: 0003 2.4.20-pre11aa1 #9 Fri Oct 18
00:06:42 EST 2002
Oct 18 00:29:04 localhost kernel: CPU: 0
Oct 18 00:29:04 localhost kernel: EIP: 0010:[<c0139920>] Not tainted
Oct 18 00:29:04 localhost kernel: EFLAGS: 00010216
Oct 18 00:29:04 localhost kernel: eax: c6b917c0 ebx: c4a132c0 ecx:
00000004 edx: c0251474
Oct 18 00:29:04 localhost kernel: esi: 00000000 edi: ffffffe9 ebp:
c158e380 esp: c8bb7f44
Oct 18 00:29:04 localhost kernel: ds: 0018 es: 0018 ss: 0018
Oct 18 00:29:04 localhost kernel: Process sh (pid: 950, stackpage=c8bb7000)
Oct 18 00:29:04 localhost kernel: Stack: c167e440 00000004 c57acbe4 00000000
c0137e29 00000004 c16d77c0 00000000
Oct 18 00:29:04 localhost kernel: c1be5000 4001edcd bfffeb68 c0137e07
c16d77c0 c158e380 00000000 c8bb7f84
Oct 18 00:29:04 localhost kernel: c16d77c0 c158e380 c1be5000 c2dbc61c
00000003 00000001 00000001 4001edcd
Oct 18 00:29:04 localhost kernel: Call Trace: [<c0137e29>] [<c0137e07>]
[<c01381e3>] [<c01074ff>]
Oct 18 00:29:04 localhost kernel: Code: 89 50 04 89 02 c7 43 04 00 00 00 00 c7
03 00 00 00 00 ff 0d


>>EIP; c0139920 <get_empty_filp+20/130> <=====

>>eax; c6b917c0 <END_OF_CODE+2dcc865/????>
>>ebx; c4a132c0 <END_OF_CODE+c4e365/????>
>>edx; c0251474 <free_list+0/8>
>>edi; ffffffe9 <END_OF_CODE+3c23b08e/????>
>>ebp; c158e380 <_end+12b5fe8/3a47ce8>
>>esp; c8bb7f44 <END_OF_CODE+4df2fe9/????>

Trace; c0137e29 <dentry_open+19/210>
Trace; c0137e07 <filp_open+67/70>
Trace; c01381e3 <sys_open+53/a0>
Trace; c01074ff <system_call+33/38>

Code; c0139920 <get_empty_filp+20/130>
00000000 <_EIP>:
Code; c0139920 <get_empty_filp+20/130> <=====
0: 89 50 04 mov %edx,0x4(%eax) <=====
Code; c0139923 <get_empty_filp+23/130>
3: 89 02 mov %eax,(%edx)
Code; c0139925 <get_empty_filp+25/130>
5: c7 43 04 00 00 00 00 movl $0x0,0x4(%ebx)
Code; c013992c <get_empty_filp+2c/130>
c: c7 03 00 00 00 00 movl $0x0,(%ebx)
Code; c0139932 <get_empty_filp+32/130>
12: ff 0d 00 00 00 00 decl 0x0

Oct 18 00:29:10 localhost kernel: <1>Unable to handle kernel paging request
at virtual address c6895b44
Oct 18 00:29:10 localhost kernel: c0139920
Oct 18 00:29:10 localhost kernel: *pde = 0748a163
Oct 18 00:29:10 localhost kernel: Oops: 0003 2.4.20-pre11aa1 #9 Fri Oct 18
00:06:42 EST 2002
Oct 18 00:29:10 localhost kernel: CPU: 0
Oct 18 00:29:10 localhost kernel: EIP: 0010:[<c0139920>] Not tainted
Oct 18 00:29:10 localhost kernel: EFLAGS: 00010216
Warning (Oops_read): Code line not seen, dumping what data is available


>>EIP; c0139920 <get_empty_filp+20/130> <=====


2 warnings issued. Results may not be reliable.

2. Then I compiled the kernel with one and only module ie, radeon, and nothing
else.
$ cat /lib/modules/2.4.20-pre11aa1/modules.dep
/lib/modules/2.4.20-pre11aa1/kernel/drivers/char/drm/radeon.o:

Here is the decoded output of the oops appeared on the system logs:
----------------------------------------------------------------------------------------------------
ksymoops 2.4.5 on i686 2.4.20-pre11aa1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.20-pre11aa1/ (default)
-m /boot/System.map-2.4.20-pre11aa1 (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Oct 18 01:00:26 localhost kernel: Unable to handle kernel paging request at
virtual address c3d50000
Oct 18 01:00:26 localhost kernel: c021389a
Oct 18 01:00:26 localhost kernel: *pde = 03c001e3
Oct 18 01:00:26 localhost kernel: Oops: 0002 2.4.20-pre11aa1 #10 Fri Oct 18
00:39:27 EST 2002
Oct 18 01:00:26 localhost kernel: CPU: 0
Oct 18 01:00:26 localhost kernel: EIP: 0010:[<c021389a>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Oct 18 01:00:26 localhost kernel: EFLAGS: 00013246
Oct 18 01:00:26 localhost kernel: eax: 0000003a ebx: c1730000 ecx:
c3df4000 edx: 00000000
Oct 18 01:00:26 localhost kernel: esi: c3d50000 edi: 01730025 ebp:
c10a89dc esp: c3df5e9c
Oct 18 01:00:26 localhost kernel: ds: 0018 es: 0018 ss: 0018
Oct 18 01:00:26 localhost kernel: Process modprobe (pid: 712,
stackpage=c3df5000)
Oct 18 01:00:26 localhost kernel: Stack: c103fc5c c3fad498 c01264ce c3d50000
c1730000 dfe1ce00 c10a89dc c4c99420
Oct 18 01:00:26 localhost kernel: 42126000 dfe1ce00 c164ed40 c0126e69
dfe1ce00 c164ed40 42126000 c3fad498
Oct 18 01:00:26 localhost kernel: c4c99420 01730025 c164e5c0 dfe1ce00
c164ed40 42126000 c3df4000 c011244a
Oct 18 01:00:26 localhost kernel: Call Trace: [<c01264ce>] [<c0126e69>]
[<c011244a>] [<c01276dc>] [<c0139b8c>]
Oct 18 01:00:26 localhost kernel: [<c01286df>] [<c0128a37>] [<c0128ab4>]
[<c01122a0>] [<c01075f0>]
Oct 18 01:00:26 localhost kernel: Code: 0f e7 06 0f 6f 4b 08 0f e7 4e 08 0f 6f
53 10 0f e7 56 10 0f


>>EIP; c021389a <fast_copy_page+3a/e0> <=====

>>ebx; c1730000 <_end+1455ba8/3a85c28>
>>ecx; c3df4000 <END_OF_CODE+7ea89/????>
>>esi; c3d50000 <_end+3a75ba8/3a85c28>
>>edi; 01730025 Before first symbol
>>ebp; c10a89dc <_end+dce584/3a85c28>
>>esp; c3df5e9c <END_OF_CODE+80925/????>

Trace; c01264ce <do_wp_page+fe/1f0>
Trace; c0126e69 <handle_mm_fault+119/160>
Trace; c011244a <do_page_fault+1aa/5a0>
Trace; c01276dc <zap_pmd_range+7c/80>
Trace; c0139b8c <fput+cc/120>
Trace; c01286df <unmap_fixup+12f/140>
Trace; c0128a37 <do_munmap+297/2d0>
Trace; c0128ab4 <sys_munmap+44/80>
Trace; c01122a0 <do_page_fault+0/5a0>
Trace; c01075f0 <error_code+34/3c>

Code; c021389a <fast_copy_page+3a/e0>
00000000 <_EIP>:
Code; c021389a <fast_copy_page+3a/e0> <=====
0: 0f e7 06 movntq %mm0,(%esi) <=====
Code; c021389d <fast_copy_page+3d/e0>
3: 0f 6f 4b 08 movq 0x8(%ebx),%mm1
Code; c02138a1 <fast_copy_page+41/e0>
7: 0f e7 4e 08 movntq %mm1,0x8(%esi)
Code; c02138a5 <fast_copy_page+45/e0>
b: 0f 6f 53 10 movq 0x10(%ebx),%mm2
Code; c02138a9 <fast_copy_page+49/e0>
f: 0f e7 56 10 movntq %mm2,0x10(%esi)
Code; c02138ad <fast_copy_page+4d/e0>
13: 0f 00 00 sldtl (%eax)


1 warning issued. Results may not be reliable.

I can provide .config upon request, but it is basically the same as the
previous one except I have deselected the whole Netfilter stuff.

Thanks.
--
Hari
harisri@bigpond.com

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