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Subjectoops in 2.2.17, not in 2.2.14-5
Hi.

When running 'tar cvIf <file> /' or 'tar cvzf <file> /' (but sometimes not
with 'plain' tar, i.e., without compression) I get an oops after some
time. This is reproducible. The oops below is from a 'tar cvIf' run.

I get this also with 2.2.17pre10 (which was what I was running before
encountering this) but not with the stock RH 6.2 kernel (2.2.14-5.0).
Unless I get other suggestions I'm going to try with the latest 2.2.18pre
and 2.2.16 tomorrow.

Since I had just experienced RAM problems on another machine I put in
some new RAM after testing it with memtest86, but that did not solve
the problem (neither did the old RAM show any errors when I memtested
it afterwards).

I'm not sure about the warning. Is it fatal? And what should I do to get
rid of it?

Comments appreciated and info willingly given :)

ksymoops 0.7c on i586 2.2.17. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.2.17/ (default)
-m /boot/System.map (specified)

Warning (compare_maps): ksyms_base symbol module_list_R__ver_module_list not found in System.map. Ignoring ksyms_base entry
Nov 13 18:15:05 firewall kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000004
Nov 13 18:15:05 firewall kernel: current->tss.cr3 = 07259000, %cr3 = 07259000
Nov 13 18:15:05 firewall kernel: *pde = 00000000
Nov 13 18:15:05 firewall kernel: Oops: 0002
Nov 13 18:15:05 firewall kernel: CPU: 0
Nov 13 18:15:05 firewall kernel: EIP: 0010:[<c0121b43>]
Using defaults from ksymoops -t elf32-i386 -a i386
Nov 13 18:15:05 firewall kernel: EFLAGS: 00010087
Nov 13 18:15:05 firewall kernel: eax: 00000000 ebx: 00000001 ecx: 00000000 edx: 00000000
Nov 13 18:15:05 firewall kernel: esi: c02009f0 edi: 00001000 ebp: c022a790 esp: c725bd4c
Nov 13 18:15:05 firewall kernel: ds: 0018 es: 0018 ss: 0018
Nov 13 18:15:05 firewall kernel: Process bzip2 (pid: 1327, process nr: 23, stackpage=c725b000)
Nov 13 18:15:05 firewall kernel: Stack: 00001000 00000306 00000001 0000000a 00000202 00000000 00000306 000016cf
Nov 13 18:15:05 firewall kernel: 00001000 c0126ff4 00000003 00000000 00001000 00000306 00000002 c10fd3c0
Nov 13 18:15:05 firewall kernel: c06c1000 c01261e8 00001000 000016cf 00001000 00000306 00000002 c10fd3c0
Nov 13 18:15:05 firewall kernel: Call Trace: [<c0126ff4>] [<c01261e8>] [<c01263c5>] [<c0125f01>] [<c013f74c>] [<c013fdc2>] [<c014011b>]
Nov 13 18:15:05 firewall kernel: [<c01264ff>] [<c013e23e>] [<c011130e>] [<c011ae20>] [<c011157e>] [<c0111573>] [<c010a103>] [<c01249cf>]
Nov 13 18:15:05 firewall kernel: [<c012483c>] [<c010923d>] [<c0109104>]
Nov 13 18:15:05 firewall kernel: Code: 89 70 04 89 e8 2b 05 ec da 1d c0 8d 04 40 89 c2 c1 e2 04 01

>>EIP; c0121b43 <__get_free_pages+1eb/2b8> <=====
Trace; c0126ff4 <grow_buffers+40/f8>
Trace; c01261e8 <refill_freelist+10/44>
Trace; c01263c5 <getblk+139/164>
Trace; c0125f01 <get_hash_table+1d/2c>
Trace; c013f74c <ext2_alloc_block+74/178>
Trace; c013fdc2 <block_getblk+156/2a0>
Trace; c014011b <ext2_getblk+20f/21c>
Trace; c01264ff <__brelse+13/64>
Trace; c013e23e <ext2_file_write+226/5bc>
Trace; c011130e <update_wall_time+12/48>
Trace; c011ae20 <handle_mm_fault+c8/13c>
Trace; c011157e <timer_bh+d2/3a0>
Trace; c0111573 <timer_bh+c7/3a0>
Trace; c010a103 <do_8259A_IRQ+8f/9c>
Trace; c01249cf <sys_write+c3/e8>
Trace; c012483c <sys_read+0/d0>
Trace; c010923d <error_code+2d/40>
Trace; c0109104 <system_call+34/40>
Code; c0121b43 <__get_free_pages+1eb/2b8>
00000000 <_EIP>:
Code; c0121b43 <__get_free_pages+1eb/2b8> <=====
0: 89 70 04 mov %esi,0x4(%eax) <=====
Code; c0121b46 <__get_free_pages+1ee/2b8>
3: 89 e8 mov %ebp,%eax
Code; c0121b48 <__get_free_pages+1f0/2b8>
5: 2b 05 ec da 1d c0 sub 0xc01ddaec,%eax
Code; c0121b4e <__get_free_pages+1f6/2b8>
b: 8d 04 40 lea (%eax,%eax,2),%eax
Code; c0121b51 <__get_free_pages+1f9/2b8>
e: 89 c2 mov %eax,%edx
Code; c0121b53 <__get_free_pages+1fb/2b8>
10: c1 e2 04 shl $0x4,%edx
Code; c0121b56 <__get_free_pages+1fe/2b8>
13: 01 00 add %eax,(%eax)


1 warning issued. Results may not be reliable.

--
Regards,
Rasmus(rasmus@jaquet.dk)

Without censorship, things can get terribly confused in the
public mind. -General William Westmoreland, during the war in Viet Nam
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