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Subject[2.6.9-rc1-bk14 Oops] In groups_search()
This problem also existed in bk12 but not in the base 2.6.9-rc1.  (I 
don't know about other bk versions as I have only tried these two.) It
is triggered by gdmgreeter and gdm-binary. System being used is Fedora
Core 2 on an UP i386 machine. The system survives the Oops and is still
usable.

Output from syslog and the results of running ksymoops on that output
are attached.

Peter
--
Peter Williams pwil3058@bigpond.net.au

"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce
Sep 9 10:01:08 mudlark kernel: Unable to handle kernel paging request at virtual address 0806a64c
Sep 9 10:01:08 mudlark kernel: printing eip:
Sep 9 10:01:08 mudlark kernel: c0124ac1
Sep 9 10:01:08 mudlark kernel: *pde = 00000000
Sep 9 10:01:08 mudlark kernel: Oops: 0000 [#1]
Sep 9 10:01:08 mudlark kernel: PREEMPT
Sep 9 10:01:08 mudlark kernel: Modules linked in: tulip ohci_hcd
Sep 9 10:01:08 mudlark kernel: CPU: 0
Sep 9 10:01:08 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Sep 9 10:01:08 mudlark kernel: EFLAGS: 00010206 (2.6.9-rc1-bk14)
Sep 9 10:01:08 mudlark kernel: EIP is at groups_search+0x48/0x6a
Sep 9 10:01:08 mudlark kernel: eax: 0806a640 ebx: 00000006 ecx: 00000003 edx: 00000003
Sep 9 10:01:08 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f7339c30
Sep 9 10:01:09 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:09 mudlark kernel: Process gdmgreeter (pid: 2968, threadinfo=f7338000 task=f798f000)
Sep 9 10:01:09 mudlark kernel: Stack: f7338000 00000001 00000004 f79bbf00 c0124caf c1921880 00000000 000081ed
Sep 9 10:01:09 mudlark kernel: f633a758 c015a1f7 00000000 00000004 f7338000 f78da700 c015a2c3 f633a758
Sep 9 10:01:09 mudlark kernel: 00000004 f7338000 f7338000 c0157df4 f633a758 00000004 00000000 00000001
Sep 9 10:01:09 mudlark kernel: Call Trace:
Sep 9 10:01:09 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:09 mudlark kernel: [<c015a1f7>] vfs_permission+0x7a/0x117
Sep 9 10:01:09 mudlark kernel: [<c015a2c3>] permission+0x2f/0x4b
Sep 9 10:01:09 mudlark kernel: [<c0157df4>] flush_old_exec+0x30f/0x8cd
Sep 9 10:01:09 mudlark kernel: [<c01578ed>] kernel_read+0x50/0x5f
Sep 9 10:01:09 mudlark kernel: [<c01766e9>] load_elf_binary+0x32d/0xc67
Sep 9 10:01:09 mudlark kernel: [<c01310b2>] generic_file_aio_read+0x5a/0x74
Sep 9 10:01:09 mudlark kernel: [<c015743d>] copy_strings+0x1da/0x228
Sep 9 10:01:09 mudlark kernel: [<c01763bc>] load_elf_binary+0x0/0xc67
Sep 9 10:01:09 mudlark kernel: [<c0158728>] search_binary_handler+0x17a/0x2a8
Sep 9 10:01:09 mudlark kernel: [<c0158a25>] do_execve+0x1cf/0x247
Sep 9 10:01:09 mudlark kernel: [<c0102c06>] sys_execve+0x42/0x79
Sep 9 10:01:09 mudlark kernel: [<c0103f61>] sysenter_past_esp+0x52/0x71
Sep 9 10:01:09 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3
Sep 9 10:01:11 mudlark kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 00000e24
Sep 9 10:01:11 mudlark kernel: printing eip:
Sep 9 10:01:11 mudlark kernel: c0124ac1
Sep 9 10:01:11 mudlark kernel: *pde = 35c28067
Sep 9 10:01:11 mudlark kernel: *pte = 00000000
Sep 9 10:01:11 mudlark kernel: Oops: 0000 [#2]
Sep 9 10:01:11 mudlark kernel: PREEMPT
Sep 9 10:01:11 mudlark kernel: Modules linked in: tulip ohci_hcd
Sep 9 10:01:11 mudlark kernel: CPU: 0
Sep 9 10:01:11 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Sep 9 10:01:11 mudlark kernel: EFLAGS: 00010202 (2.6.9-rc1-bk14)
Sep 9 10:01:11 mudlark kernel: EIP is at groups_search+0x48/0x6a
Sep 9 10:01:11 mudlark kernel: eax: 00000000 ebx: 00000712 ecx: 00000389 edx: 00000389
Sep 9 10:01:11 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f6dcfe60
Sep 9 10:01:11 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:11 mudlark kernel: Process gdm-binary (pid: 3020, threadinfo=f6dce000 task=f798f000)
Sep 9 10:01:11 mudlark kernel: Stack: f6dce000 00000001 f7d01c50 f6dcff60 c0124caf c1921880 00000000 f7876001
Sep 9 10:01:11 mudlark kernel: 000041ed c015b4b6 00000000 00000000 f78c7000 f78c7000 0000088c f789b300
Sep 9 10:01:11 mudlark kernel: 00000000 f7d917f0 00000001 f78c7000 00223300 f789b300 00000000 c013f779
Sep 9 10:01:11 mudlark kernel: Call Trace:
Sep 9 10:01:11 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:11 mudlark kernel: [<c015b4b6>] link_path_walk+0xcd5/0xd78
Sep 9 10:01:11 mudlark kernel: [<c013f779>] handle_mm_fault+0xd6/0x174
Sep 9 10:01:11 mudlark kernel: [<c015b7d2>] path_lookup+0x80/0x13c
Sep 9 10:01:11 mudlark kernel: [<c015be78>] open_namei+0x85/0x5f2
Sep 9 10:01:11 mudlark kernel: [<c014c7eb>] filp_open+0x3e/0x64
Sep 9 10:01:11 mudlark kernel: [<c014d4a5>] vfs_read+0xc9/0x119
Sep 9 10:01:11 mudlark kernel: [<c014ca6a>] get_unused_fd+0x37/0xd9
Sep 9 10:01:11 mudlark kernel: [<c014cbcb>] sys_open+0x49/0x89
Sep 9 10:01:11 mudlark kernel: [<c0103fb3>] syscall_call+0x7/0xb
Sep 9 10:01:11 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3
Sep 9 10:01:11 mudlark kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 00000624
Sep 9 10:01:11 mudlark kernel: printing eip:
Sep 9 10:01:11 mudlark kernel: c0124ac1
Sep 9 10:01:12 mudlark kernel: *pde = 35c24067
Sep 9 10:01:12 mudlark kernel: *pte = 00000000
Sep 9 10:01:12 mudlark kernel: Oops: 0000 [#3]
Sep 9 10:01:12 mudlark kernel: PREEMPT
Sep 9 10:01:12 mudlark kernel: Modules linked in: tulip ohci_hcd
Sep 9 10:01:12 mudlark kernel: CPU: 0
Sep 9 10:01:12 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Sep 9 10:01:12 mudlark kernel: EFLAGS: 00010202 (2.6.9-rc1-bk14)
Sep 9 10:01:12 mudlark kernel: EIP is at groups_search+0x48/0x6a
Sep 9 10:01:12 mudlark kernel: eax: 00000000 ebx: 00000312 ecx: 00000189 edx: 00000189
Sep 9 10:01:12 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f6dcbe60
Sep 9 10:01:12 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:12 mudlark kernel: Process gdm-binary (pid: 3019, threadinfo=f6dca000 task=f7948aa0)
Sep 9 10:01:12 mudlark kernel: Stack: f6dca000 00000001 f7d01c50 f6dcbf60 c0124caf c1921880 00000000 f7866001
Sep 9 10:01:12 mudlark kernel: 000041ed c015b4b6 00000000 c16b1620 c013e9a2 c16b1620 00000ca0 f7958800
Sep 9 10:01:12 mudlark kernel: c013d673 c16b8480 00000001 f763c000 00328970 f7958800 00000001 c013f7ef
Sep 9 10:01:12 mudlark kernel: Call Trace:
Sep 9 10:01:12 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:12 mudlark kernel: [<c015b4b6>] link_path_walk+0xcd5/0xd78
Sep 9 10:01:12 mudlark kernel: [<c013e9a2>] do_wp_page+0x2df/0x361
Sep 9 10:01:12 mudlark kernel: [<c013d673>] pte_alloc_map+0x7c/0x9a
Sep 9 10:01:12 mudlark kernel: [<c013f7ef>] handle_mm_fault+0x14c/0x174
Sep 9 10:01:12 mudlark kernel: [<c015b7d2>] path_lookup+0x80/0x13c
Sep 9 10:01:12 mudlark kernel: [<c015be78>] open_namei+0x85/0x5f2
Sep 9 10:01:12 mudlark kernel: [<c011a4eb>] do_wait+0x1b7/0x4c6
Sep 9 10:01:12 mudlark kernel: [<c014c7eb>] filp_open+0x3e/0x64
Sep 9 10:01:12 mudlark kernel: [<c014ca6a>] get_unused_fd+0x37/0xd9
Sep 9 10:01:12 mudlark kernel: [<c014cbcb>] sys_open+0x49/0x89
Sep 9 10:01:12 mudlark kernel: [<c0103f61>] sysenter_past_esp+0x52/0x71
Sep 9 10:01:12 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3
ksymoops 2.4.8 on i686 2.6.9-rc1-bk14. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.9-rc1-bk14/ (default)
-m /boot/System.map-2.6.9-rc1-bk14 (specified)

Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Sep 9 10:01:08 mudlark kernel: Unable to handle kernel paging request at virtual address 0806a64c
Sep 9 10:01:08 mudlark kernel: c0124ac1
Sep 9 10:01:08 mudlark kernel: *pde = 00000000
Sep 9 10:01:08 mudlark kernel: Oops: 0000 [#1]
Sep 9 10:01:08 mudlark kernel: CPU: 0
Sep 9 10:01:08 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Using defaults from ksymoops -t elf32-i386 -a i386
Sep 9 10:01:08 mudlark kernel: EFLAGS: 00010206 (2.6.9-rc1-bk14)
Sep 9 10:01:08 mudlark kernel: eax: 0806a640 ebx: 00000006 ecx: 00000003 edx: 00000003
Sep 9 10:01:08 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f7339c30
Sep 9 10:01:09 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:09 mudlark kernel: Stack: f7338000 00000001 00000004 f79bbf00 c0124caf c1921880 00000000 000081ed
Sep 9 10:01:09 mudlark kernel: f633a758 c015a1f7 00000000 00000004 f7338000 f78da700 c015a2c3 f633a758
Sep 9 10:01:09 mudlark kernel: 00000004 f7338000 f7338000 c0157df4 f633a758 00000004 00000000 00000001
Sep 9 10:01:09 mudlark kernel: Call Trace:
Sep 9 10:01:09 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:09 mudlark kernel: [<c015a1f7>] vfs_permission+0x7a/0x117
Sep 9 10:01:09 mudlark kernel: [<c015a2c3>] permission+0x2f/0x4b
Sep 9 10:01:09 mudlark kernel: [<c0157df4>] flush_old_exec+0x30f/0x8cd
Sep 9 10:01:09 mudlark kernel: [<c01578ed>] kernel_read+0x50/0x5f
Sep 9 10:01:09 mudlark kernel: [<c01766e9>] load_elf_binary+0x32d/0xc67
Sep 9 10:01:09 mudlark kernel: [<c01310b2>] generic_file_aio_read+0x5a/0x74
Sep 9 10:01:09 mudlark kernel: [<c015743d>] copy_strings+0x1da/0x228
Sep 9 10:01:09 mudlark kernel: [<c01763bc>] load_elf_binary+0x0/0xc67
Sep 9 10:01:09 mudlark kernel: [<c0158728>] search_binary_handler+0x17a/0x2a8
Sep 9 10:01:09 mudlark kernel: [<c0158a25>] do_execve+0x1cf/0x247
Sep 9 10:01:09 mudlark kernel: [<c0102c06>] sys_execve+0x42/0x79
Sep 9 10:01:09 mudlark kernel: [<c0103f61>] sysenter_past_esp+0x52/0x71
Sep 9 10:01:09 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3


>>EIP; c0124ac1 <groups_search+48/6a> <=====

>>edi; c1921880 <pg0+1451880/3fb2e400>
>>esp; f7339c30 <pg0+36e69c30/3fb2e400>

Trace; c0124caf <in_group_p+42/76>
Trace; c015a1f7 <vfs_permission+7a/117>
Trace; c015a2c3 <permission+2f/4b>
Trace; c0157df4 <flush_old_exec+30f/8cd>
Trace; c01578ed <kernel_read+50/5f>
Trace; c01766e9 <load_elf_binary+32d/c67>
Trace; c01310b2 <generic_file_aio_read+5a/74>
Trace; c015743d <copy_strings+1da/228>
Trace; c01763bc <load_elf_binary+0/c67>
Trace; c0158728 <search_binary_handler+17a/2a8>
Trace; c0158a25 <do_execve+1cf/247>
Trace; c0102c06 <sys_execve+42/79>
Trace; c0103f61 <sysenter_past_esp+52/71>

Code; c0124a96 <groups_search+1d/6a>
00000000 <_EIP>:
Code; c0124a96 <groups_search+1d/6a>
0: 1f pop %ds
Code; c0124a97 <groups_search+1e/6a>
1: 8d 0c 10 lea (%eax,%edx,1),%ecx
Code; c0124a9a <groups_search+21/6a>
4: d1 f9 sar %ecx
Code; c0124a9c <groups_search+23/6a>
6: 83 f9 ff cmp $0xffffffff,%ecx
Code; c0124a9f <groups_search+26/6a>
9: 8d 81 ff 03 00 00 lea 0x3ff(%ecx),%eax
Code; c0124aa5 <groups_search+2c/6a>
f: 89 cd mov %ecx,%ebp
Code; c0124aa7 <groups_search+2e/6a>
11: 0f 4f c1 cmovg %ecx,%eax
Code; c0124aaa <groups_search+31/6a>
14: c1 f8 0a sar $0xa,%eax
Code; c0124aad <groups_search+34/6a>
17: 89 c2 mov %eax,%edx
Code; c0124aaf <groups_search+36/6a>
19: 8b 84 87 8c 00 00 00 mov 0x8c(%edi,%eax,4),%eax
Code; c0124ab6 <groups_search+3d/6a>
20: c1 e2 0a shl $0xa,%edx
Code; c0124ab9 <groups_search+40/6a>
23: 29 d5 sub %edx,%ebp
Code; c0124abb <groups_search+42/6a>
25: 89 ea mov %ebp,%edx
Code; c0124abd <groups_search+44/6a>
27: 8b 6c 24 18 mov 0x18(%esp),%ebp
Code; c0124ac1 <groups_search+48/6a> <=====
2b: 2b 2c 90 sub (%eax,%edx,4),%ebp <=====
Code; c0124ac4 <groups_search+4b/6a>
2e: 85 ed test %ebp,%ebp
Code; c0124ac6 <groups_search+4d/6a>
30: 7e 0e jle 40 <_EIP+0x40>
Code; c0124ac8 <groups_search+4f/6a>
32: 8d 71 01 lea 0x1(%ecx),%esi
Code; c0124acb <groups_search+52/6a>
35: 39 de cmp %ebx,%esi
Code; c0124acd <groups_search+54/6a>
37: 7c c0 jl fffffff9 <_EIP+0xfffffff9>
Code; c0124acf <groups_search+56/6a>
39: 31 c0 xor %eax,%eax
Code; c0124ad1 <groups_search+58/6a>
3b: 5b pop %ebx
Code; c0124ad2 <groups_search+59/6a>
3c: 5e pop %esi
Code; c0124ad3 <groups_search+5a/6a>
3d: 5f pop %edi
Code; c0124ad4 <groups_search+5b/6a>
3e: 5d pop %ebp
Code; c0124ad5 <groups_search+5c/6a>
3f: c3 ret

Sep 9 10:01:11 mudlark kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 00000e24
Sep 9 10:01:11 mudlark kernel: c0124ac1
Sep 9 10:01:11 mudlark kernel: *pde = 35c28067
Sep 9 10:01:11 mudlark kernel: Oops: 0000 [#2]
Sep 9 10:01:11 mudlark kernel: CPU: 0
Sep 9 10:01:11 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Sep 9 10:01:11 mudlark kernel: EFLAGS: 00010202 (2.6.9-rc1-bk14)
Sep 9 10:01:11 mudlark kernel: eax: 00000000 ebx: 00000712 ecx: 00000389 edx: 00000389
Sep 9 10:01:11 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f6dcfe60
Sep 9 10:01:11 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:11 mudlark kernel: Stack: f6dce000 00000001 f7d01c50 f6dcff60 c0124caf c1921880 00000000 f7876001
Sep 9 10:01:11 mudlark kernel: 000041ed c015b4b6 00000000 00000000 f78c7000 f78c7000 0000088c f789b300
Sep 9 10:01:11 mudlark kernel: 00000000 f7d917f0 00000001 f78c7000 00223300 f789b300 00000000 c013f779
Sep 9 10:01:11 mudlark kernel: Call Trace:
Sep 9 10:01:11 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:11 mudlark kernel: [<c015b4b6>] link_path_walk+0xcd5/0xd78
Sep 9 10:01:11 mudlark kernel: [<c013f779>] handle_mm_fault+0xd6/0x174
Sep 9 10:01:11 mudlark kernel: [<c015b7d2>] path_lookup+0x80/0x13c
Sep 9 10:01:11 mudlark kernel: [<c015be78>] open_namei+0x85/0x5f2
Sep 9 10:01:11 mudlark kernel: [<c014c7eb>] filp_open+0x3e/0x64
Sep 9 10:01:11 mudlark kernel: [<c014d4a5>] vfs_read+0xc9/0x119
Sep 9 10:01:11 mudlark kernel: [<c014ca6a>] get_unused_fd+0x37/0xd9
Sep 9 10:01:11 mudlark kernel: [<c014cbcb>] sys_open+0x49/0x89
Sep 9 10:01:11 mudlark kernel: [<c0103fb3>] syscall_call+0x7/0xb
Sep 9 10:01:11 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3


>>EIP; c0124ac1 <groups_search+48/6a> <=====

>>edi; c1921880 <pg0+1451880/3fb2e400>
>>esp; f6dcfe60 <pg0+368ffe60/3fb2e400>

Trace; c0124caf <in_group_p+42/76>
Trace; c015b4b6 <link_path_walk+cd5/d78>
Trace; c013f779 <handle_mm_fault+d6/174>
Trace; c015b7d2 <path_lookup+80/13c>
Trace; c015be78 <open_namei+85/5f2>
Trace; c014c7eb <filp_open+3e/64>
Trace; c014d4a5 <vfs_read+c9/119>
Trace; c014ca6a <get_unused_fd+37/d9>
Trace; c014cbcb <sys_open+49/89>
Trace; c0103fb3 <syscall_call+7/b>

Code; c0124a96 <groups_search+1d/6a>
00000000 <_EIP>:
Code; c0124a96 <groups_search+1d/6a>
0: 1f pop %ds
Code; c0124a97 <groups_search+1e/6a>
1: 8d 0c 10 lea (%eax,%edx,1),%ecx
Code; c0124a9a <groups_search+21/6a>
4: d1 f9 sar %ecx
Code; c0124a9c <groups_search+23/6a>
6: 83 f9 ff cmp $0xffffffff,%ecx
Code; c0124a9f <groups_search+26/6a>
9: 8d 81 ff 03 00 00 lea 0x3ff(%ecx),%eax
Code; c0124aa5 <groups_search+2c/6a>
f: 89 cd mov %ecx,%ebp
Code; c0124aa7 <groups_search+2e/6a>
11: 0f 4f c1 cmovg %ecx,%eax
Code; c0124aaa <groups_search+31/6a>
14: c1 f8 0a sar $0xa,%eax
Code; c0124aad <groups_search+34/6a>
17: 89 c2 mov %eax,%edx
Code; c0124aaf <groups_search+36/6a>
19: 8b 84 87 8c 00 00 00 mov 0x8c(%edi,%eax,4),%eax
Code; c0124ab6 <groups_search+3d/6a>
20: c1 e2 0a shl $0xa,%edx
Code; c0124ab9 <groups_search+40/6a>
23: 29 d5 sub %edx,%ebp
Code; c0124abb <groups_search+42/6a>
25: 89 ea mov %ebp,%edx
Code; c0124abd <groups_search+44/6a>
27: 8b 6c 24 18 mov 0x18(%esp),%ebp
Code; c0124ac1 <groups_search+48/6a> <=====
2b: 2b 2c 90 sub (%eax,%edx,4),%ebp <=====
Code; c0124ac4 <groups_search+4b/6a>
2e: 85 ed test %ebp,%ebp
Code; c0124ac6 <groups_search+4d/6a>
30: 7e 0e jle 40 <_EIP+0x40>
Code; c0124ac8 <groups_search+4f/6a>
32: 8d 71 01 lea 0x1(%ecx),%esi
Code; c0124acb <groups_search+52/6a>
35: 39 de cmp %ebx,%esi
Code; c0124acd <groups_search+54/6a>
37: 7c c0 jl fffffff9 <_EIP+0xfffffff9>
Code; c0124acf <groups_search+56/6a>
39: 31 c0 xor %eax,%eax
Code; c0124ad1 <groups_search+58/6a>
3b: 5b pop %ebx
Code; c0124ad2 <groups_search+59/6a>
3c: 5e pop %esi
Code; c0124ad3 <groups_search+5a/6a>
3d: 5f pop %edi
Code; c0124ad4 <groups_search+5b/6a>
3e: 5d pop %ebp
Code; c0124ad5 <groups_search+5c/6a>
3f: c3 ret

Sep 9 10:01:11 mudlark kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 00000624
Sep 9 10:01:11 mudlark kernel: c0124ac1
Sep 9 10:01:12 mudlark kernel: *pde = 35c24067
Sep 9 10:01:12 mudlark kernel: Oops: 0000 [#3]
Sep 9 10:01:12 mudlark kernel: CPU: 0
Sep 9 10:01:12 mudlark kernel: EIP: 0060:[<c0124ac1>] Not tainted VLI
Sep 9 10:01:12 mudlark kernel: EFLAGS: 00010202 (2.6.9-rc1-bk14)
Sep 9 10:01:12 mudlark kernel: eax: 00000000 ebx: 00000312 ecx: 00000189 edx: 00000189
Sep 9 10:01:12 mudlark kernel: esi: 00000000 edi: c1921880 ebp: 00000000 esp: f6dcbe60
Sep 9 10:01:12 mudlark kernel: ds: 007b es: 007b ss: 0068
Sep 9 10:01:12 mudlark kernel: Stack: f6dca000 00000001 f7d01c50 f6dcbf60 c0124caf c1921880 00000000 f7866001
Sep 9 10:01:12 mudlark kernel: 000041ed c015b4b6 00000000 c16b1620 c013e9a2 c16b1620 00000ca0 f7958800
Sep 9 10:01:12 mudlark kernel: c013d673 c16b8480 00000001 f763c000 00328970 f7958800 00000001 c013f7ef
Sep 9 10:01:12 mudlark kernel: Call Trace:
Sep 9 10:01:12 mudlark kernel: [<c0124caf>] in_group_p+0x42/0x76
Sep 9 10:01:12 mudlark kernel: [<c015b4b6>] link_path_walk+0xcd5/0xd78
Sep 9 10:01:12 mudlark kernel: [<c013e9a2>] do_wp_page+0x2df/0x361
Sep 9 10:01:12 mudlark kernel: [<c013d673>] pte_alloc_map+0x7c/0x9a
Sep 9 10:01:12 mudlark kernel: [<c013f7ef>] handle_mm_fault+0x14c/0x174
Sep 9 10:01:12 mudlark kernel: [<c015b7d2>] path_lookup+0x80/0x13c
Sep 9 10:01:12 mudlark kernel: [<c015be78>] open_namei+0x85/0x5f2
Sep 9 10:01:12 mudlark kernel: [<c011a4eb>] do_wait+0x1b7/0x4c6
Sep 9 10:01:12 mudlark kernel: [<c014c7eb>] filp_open+0x3e/0x64
Sep 9 10:01:12 mudlark kernel: [<c014ca6a>] get_unused_fd+0x37/0xd9
Sep 9 10:01:12 mudlark kernel: [<c014cbcb>] sys_open+0x49/0x89
Sep 9 10:01:12 mudlark kernel: [<c0103f61>] sysenter_past_esp+0x52/0x71
Sep 9 10:01:12 mudlark kernel: Code: 1f 8d 0c 10 d1 f9 83 f9 ff 8d 81 ff 03 00 00 89 cd 0f 4f c1 c1 f8 0a 89 c2 8b 84 87 8c 00 00 00 c1 e2 0a 29 d5 89 ea 8b 6c 24 18 <2b> 2c 90 85 ed 7e 0e 8d 71 01 39 de 7c c0 31 c0 5b 5e 5f 5d c3


>>EIP; c0124ac1 <groups_search+48/6a> <=====

>>edi; c1921880 <pg0+1451880/3fb2e400>
>>esp; f6dcbe60 <pg0+368fbe60/3fb2e400>

Trace; c0124caf <in_group_p+42/76>
Trace; c015b4b6 <link_path_walk+cd5/d78>
Trace; c013e9a2 <do_wp_page+2df/361>
Trace; c013d673 <pte_alloc_map+7c/9a>
Trace; c013f7ef <handle_mm_fault+14c/174>
Trace; c015b7d2 <path_lookup+80/13c>
Trace; c015be78 <open_namei+85/5f2>
Trace; c011a4eb <do_wait+1b7/4c6>
Trace; c014c7eb <filp_open+3e/64>
Trace; c014ca6a <get_unused_fd+37/d9>
Trace; c014cbcb <sys_open+49/89>
Trace; c0103f61 <sysenter_past_esp+52/71>

Code; c0124a96 <groups_search+1d/6a>
00000000 <_EIP>:
Code; c0124a96 <groups_search+1d/6a>
0: 1f pop %ds
Code; c0124a97 <groups_search+1e/6a>
1: 8d 0c 10 lea (%eax,%edx,1),%ecx
Code; c0124a9a <groups_search+21/6a>
4: d1 f9 sar %ecx
Code; c0124a9c <groups_search+23/6a>
6: 83 f9 ff cmp $0xffffffff,%ecx
Code; c0124a9f <groups_search+26/6a>
9: 8d 81 ff 03 00 00 lea 0x3ff(%ecx),%eax
Code; c0124aa5 <groups_search+2c/6a>
f: 89 cd mov %ecx,%ebp
Code; c0124aa7 <groups_search+2e/6a>
11: 0f 4f c1 cmovg %ecx,%eax
Code; c0124aaa <groups_search+31/6a>
14: c1 f8 0a sar $0xa,%eax
Code; c0124aad <groups_search+34/6a>
17: 89 c2 mov %eax,%edx
Code; c0124aaf <groups_search+36/6a>
19: 8b 84 87 8c 00 00 00 mov 0x8c(%edi,%eax,4),%eax
Code; c0124ab6 <groups_search+3d/6a>
20: c1 e2 0a shl $0xa,%edx
Code; c0124ab9 <groups_search+40/6a>
23: 29 d5 sub %edx,%ebp
Code; c0124abb <groups_search+42/6a>
25: 89 ea mov %ebp,%edx
Code; c0124abd <groups_search+44/6a>
27: 8b 6c 24 18 mov 0x18(%esp),%ebp
Code; c0124ac1 <groups_search+48/6a> <=====
2b: 2b 2c 90 sub (%eax,%edx,4),%ebp <=====
Code; c0124ac4 <groups_search+4b/6a>
2e: 85 ed test %ebp,%ebp
Code; c0124ac6 <groups_search+4d/6a>
30: 7e 0e jle 40 <_EIP+0x40>
Code; c0124ac8 <groups_search+4f/6a>
32: 8d 71 01 lea 0x1(%ecx),%esi
Code; c0124acb <groups_search+52/6a>
35: 39 de cmp %ebx,%esi
Code; c0124acd <groups_search+54/6a>
37: 7c c0 jl fffffff9 <_EIP+0xfffffff9>
Code; c0124acf <groups_search+56/6a>
39: 31 c0 xor %eax,%eax
Code; c0124ad1 <groups_search+58/6a>
3b: 5b pop %ebx
Code; c0124ad2 <groups_search+59/6a>
3c: 5e pop %esi
Code; c0124ad3 <groups_search+5a/6a>
3d: 5f pop %edi
Code; c0124ad4 <groups_search+5b/6a>
3e: 5d pop %ebp
Code; c0124ad5 <groups_search+5c/6a>
3f: c3 ret


1 error issued. Results may not be reliable.
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