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oops 2.2.19 ext3 0.0.6b prune_dcache



Hi,
i am seeing an oops (every couple of days) on a UP PII system with
SCSI disks, Kernel 2.2.19 and ext3 0.0.6b.

All oops output passed the klogd thus i cant anymore pipe it through
ksymoops - I ensured klogd got the correct System.map so the result
should be reliable.



Apr 25 17:03:10 

Unable to handle kernel paging request at virtual address 8efd1fc8
current->tss.cr3 = 0981e000, %%cr3 = 0981e000
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[kmem_cache_free+76/620]
EFLAGS: 00010082
eax: cfffc620   ebx: cefd13bc   ecx: cefd1360   edx: cefd13a0
esi: cfffc620   edi: 8efd1fc0   ebp: cefd1340   esp: cd511d1c
ds: 0018   es: 0018   ss: 0018
Process md5sum (pid: 23655, process nr: 150, stackpage=cd511000)
Stack: 00000409 ffff7659 cefd1f40 ca2d3280 ca77b8a0 00000246 ffff8890 00000000 
       cffc0018 c013266b cfffc620 cefd1340 00000010 00000246 00000000 c021ced0 
       00001004 cd511dac cffd50e0 00001000 00000000 00001004 c021ced0 00001004 
Call Trace: [prune_dcache+295/360] [try_to_free_inodes+190/260]
	[scsi_old_times_out+0/300] [ext3_getblk+198/568] [grow_inodes+32/428]
	[cprt+14006/37792] [get_new_inode+197/312] [iget4+117/128]
	[__brelse+29/192] [iget+22/32] [ext3_lookup+90/140]
	[real_lookup+91/180] [permission+32/56]
	[lookup_dentry+304/504] [__fput+74/84] 
	[open_namei+105/776] [fput+70/84] [filp_open+74/264]
	[filp_open+17/264] [sys_open+63/160] [sys_open+38/160]
	[system_call+52/56] 
Code: 8b 47 08 3d 2b 2f c3 a5 0f 85 be 01 00 00 f6 46 05 01 0f 85 


May  2 11:32:00  - While issuing an du -sk on an ext3 filesystem. du -sk
		   segfaulted.

Unable to handle kernel paging request at virtual address 8ec91fc8
current->tss.cr3 = 0b130000, %%cr3 = 0b130000
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[kmem_cache_free+76/620]
EFLAGS: 00010082
eax: cfffc620   ebx: cec913bc   ecx: cec91360   edx: cec913a0
esi: cfffc620   edi: 8ec91fc0   ebp: cec91340   esp: cae7bd5c
ds: 0018   es: 0018   ss: 0018
Process du (pid: 21622, process nr: 116, stackpage=cae7b000)
Stack: 00000af4 ffffd622 cec91440 ccfe5f40 cf87d0e0 00000246 fffffc2a 00000000 
       00000018 c013266b cfffc620 cec91340 00000010 00000202 00000000 c021d280 
       00001004 cae7bdec c72e4e80 0013c0c0 00000000 00001004 c021d280 00001004 
Call Trace: [prune_dcache+295/360] [try_to_free_inodes+190/260] [ext3_getblk+198/568]
	[grow_inodes+32/428] [cprt+14006/37792] [ext3_find_entry+532/792]
	[get_new_inode+197/312] [iget4+117/128] [__brelse+29/192] [iget+22/32]
	[ext3_lookup+90/140] [real_lookup+91/180] [permission+32/56]
	[lookup_dentry+304/504] [getname+95/156] [__namei+49/104]
	[filldir+0/136] [sys_newlstat+20/116] [system_call+52/56] 
Code: 8b 47 08 3d 2b 2f c3 a5 0f 85 be 01 00 00 f6 46 05 01 0f 85 


May  2 11:32:04 - Trying to remove the directory the du segfaulted in
	          (i did not discover the oops of du before)

Unable to handle kernel paging request at virtual address 8ee31fc8
current->tss.cr3 = 0b130000, %%cr3 = 0b130000
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[kmem_cache_free+76/620]
EFLAGS: 00010082
eax: cfffc620   ebx: cee313bc   ecx: cee31360   edx: cee313a0
esi: cfffc620   edi: 8ee31fc0   ebp: cee31340   esp: cae7becc
ds: 0018   es: 0018   ss: 0018
Process rm (pid: 21623, process nr: 116, stackpage=cae7b000)
Stack: ffffffff 0000005f cee31440 ccfe5f40 c652dbe0 00000246 cd30e000 cd30e000 
       c652dbe0 c013266b cfffc620 cee31340 cd30e005 00000000 c23645e0 c68224c8 
       fffffffe cd30e000 cd30e000 0804de20 00000000 ffffffff c23645e0 c68224c8 
Call Trace: [prune_dcache+295/360] [shrink_dcache_parent+23/48]
	[permission+32/56] [lookup_dentry+365/504] [vfs_rmdir+254/308]
	[filldir+0/136] [sys_rmdir+173/268] [system_call+52/56] 
Code: 8b 47 08 3d 2b 2f c3 a5 0f 85 be 01 00 00 f6 46 05 01 0f 85 

-- 
Florian Lohoff                  flo rfc822 org             +49-5201-669912
     Why is it called "common sense" when nobody seems to have any?





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