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Subject2.5.70: "slab corruption" and "
Hi, while booting 2.5.70 i got this:

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 184k freed
Adding 530104k swap on /dev/hda6. Priority:-1 extents:1
EXT3 FS 2.4-0.9.16, 02 Dec 2001 on hda5, internal journal
Slab corruption: start=cfbfae08, expend=cfbfaf7f, problemat=cfbfaf48
Last user: [<c01913bd>](proc_destroy_inode+0x1d/0x30)
Data: ********************************************************************************************************************************************************************************************************************************************************************************************************************************BC 0B 76 CF ***************************************************A5
Next: 71 F0 2C .BD 13 19 C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in check_poison_obj(): cache `proc_inode_cache': object was modified after freeing
Call Trace:
[<c014580b>] check_poison_obj+0x15b/0x1b0
[<c01477dc>] kmem_cache_alloc+0x13c/0x180
[<c019133e>] proc_alloc_inode+0x1e/0x80
[<c019133e>] proc_alloc_inode+0x1e/0x80
[<c017bf0e>] alloc_inode+0x1e/0x150
[<c017cb0c>] new_inode+0x1c/0xd0
[<c01934fa>] proc_pid_make_inode+0x1a/0xd0
[<c0193d81>] proc_pident_lookup+0x101/0x230
[<c017a5fe>] d_alloc+0x1e/0x250
[<c0194112>] proc_pid_lookup+0xa2/0x270
[<c01917a7>] proc_root_lookup+0x27/0x120
[<c016ebb4>] real_lookup+0xd4/0x100
[<c016f079>] do_lookup+0x99/0xb0
[<c016f1c8>] link_path_walk+0x138/0xb20
[<c01477dc>] kmem_cache_alloc+0x13c/0x180
[<c0170140>] __user_walk+0x40/0x60
[<c016a0be>] vfs_stat+0x1e/0x60
[<c016a74b>] sys_stat64+0x1b/0x40
[<c0109b1f>] syscall_call+0x7/0xb



The warning happened during the init scripts and didn't happen again:
May 27 21:49:04 estel kernel: Adding 530104k swap on /dev/hda6. Priority:-1 extents:1
May 27 21:49:04 estel kernel: EXT3 FS 2.4-0.9.16, 02 Dec 2001 on hda5, internal journal
May 27 21:49:05 estel kernel: Slab corruption: start=cfbfae08, expend=cfbfaf7f,



machine is SMP p3 2x800 256 ram UDMA100 ide disks. config.gz attached



BTW, i also get zillions of
PPP: VJ decompression error
(78 times in 1 hour through a serial 56k modem)


did't happened with plain .69 or .69-mm8
Also, apparently the ppp link seems to work without problems.


Diego Calleja

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