Attachment 64766 Details for Bug 145204

NULL pointer dereference in xfs_buf_rele

oops (text/plain), 3.13 KB, created by Andreas Gruenbacher on 2006-01-24 15:23:39 UTC

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Creator: Andreas Gruenbacher

Created: 2006-01-24 15:23:39 UTC

Size: 3.13 KB

patch

obsolete

>dmapi: module not supported by Novell, setting U taint flag.
>SGI XFS with ACLs, security attributes, realtime, large block numbers, dmapi support, no debug enabled
>XFS mounting filesystem hda2
>Unable to handle kernel NULL pointer dereference at virtual address 0000000c
> printing eip:
>c01ae89e
>*pde = 00000000
>Oops: 0000 [#1]
>Modules linked in: xfs exportfs dmapi dm_snapshot dm_mod multipath raid6 raid5 xor raid1 raid0 parport_pc parport e1000 piix fan thermal processor pcmcia firmware_class yenta_socket rsrc_nonstatic pcmcia_core usb_storage uhci_hcd usbhid ehci_hcd usbcore loop ide_disk nfs nfs_acl lockd sunrpc cramfs vfat fat nls_iso8859_1 nls_cp437 af_packet nvram edd sg st sd_mod sr_mod scsi_mod ide_cd cdrom ide_core
>CPU:    0
>EIP:    0060:[<c01ae89e>]    Tainted: G     U VLI
>EFLAGS: 00010202   (2.6.16-rc1-git3-3-default) 
>EIP is at _raw_spin_lock+0x5/0xcd
>eax: 00000008   ebx: 00000008   ecx: 00000001   edx: 00000008
>esi: 00000008   edi: dffbcbd0   ebp: 00000000   esp: eecf1ae4
>ds: 007b   es: 007b   ss: 0068
>Process mount (pid: 3555, threadinfo=eecf0000 task=eec85570)
>Stack: <0>eed723d8 00000008 dffbcbd0 c01aa521 eed7237c 00000008 f95110a1 eed7237c 
>       00000200 f9511cab c02d6a84 c02d6aac 00000000 00c00fa1 00000000 00000000 
>       00000000 00000001 00000000 00000004 eecd8000 00000000 eed7237c df803b00 
>Call Trace:
> [<c01aa521>] _atomic_dec_and_lock+0xd/0x2c
> [<f95110a1>] xfs_buf_rele+0x14/0x6b [xfs]
> [<f9511cab>] xfs_buf_iorequest+0x38b/0x395 [xfs]
> [<c014bbd7>] cache_alloc_debugcheck_after+0x2d/0xea
> [<f950de33>] xfsbdstrat+0x23/0x27 [xfs]
> [<f94f5156>] xlog_bread+0x8f/0xc6 [xfs]
> [<f94f84b6>] xlog_find_tail+0x3f/0xa5f [xfs]
> [<c014bc62>] cache_alloc_debugcheck_after+0xb8/0xea
> [<c014cc43>] kmem_cache_alloc+0x70/0x79
> [<c014c92b>] cache_alloc_refill+0x2f9/0x4f0
> [<c014c7fa>] cache_alloc_refill+0x1c8/0x4f0
> [<f95107cc>] _xfs_buf_initialize+0x13e/0x159 [xfs]
> [<f94f8eeb>] xlog_recover+0x15/0x20a [xfs]
> [<f9510dee>] xfs_buf_get_empty+0x2a/0x33 [xfs]
> [<f94f4df1>] xfs_log_mount+0x54c/0x58f [xfs]
> [<f94faba8>] xfs_mountfs+0xacf/0xef3 [xfs]
> [<c01aa521>] _atomic_dec_and_lock+0xd/0x2c
> [<f95110a1>] xfs_buf_rele+0x14/0x6b [xfs]
> [<f9512325>] kmem_alloc+0x4a/0xa2 [xfs]
> [<f9501708>] xfs_mount+0x771/0x839 [xfs]
> [<f9500f97>] xfs_mount+0x0/0x839 [xfs]
> [<f950fdaf>] vfs_mount+0x17/0x1a [xfs]
> [<f950fc5a>] linvfs_fill_super+0x76/0x1b4 [xfs]
> [<c01ad731>] snprintf+0x1c/0x1f
> [<c017e413>] disk_name+0x56/0x60
> [<c0154f08>] get_sb_bdev+0xd5/0x111
> [<c014cbca>] __kmalloc+0xa8/0xb1
> [<c0165f29>] alloc_vfsmnt+0x97/0xbe
> [<c0165f29>] alloc_vfsmnt+0x97/0xbe
> [<f950f1ed>] linvfs_get_sb+0xe/0x11 [xfs]
> [<f950fbe4>] linvfs_fill_super+0x0/0x1b4 [xfs]
> [<c0154d04>] do_kern_mount+0x86/0x12e
> [<c01670ab>] do_mount+0x66c/0x6c6
> [<c0125cbc>] __rcu_process_callbacks+0x7e/0x131
> [<c011c2a7>] tasklet_action+0x37/0x57
> [<c01395c0>] get_page_from_freelist+0x6f/0x2c4
> [<c016617d>] copy_mount_options+0x26/0x109
> [<c0167169>] sys_mount+0x64/0x97
> [<c0102a99>] syscall_call+0x7/0xb
>Code: 08 00 74 0c ba f4 5f 2a c0 89 d8 e8 bc fe ff ff c7 43 0c ff ff ff ff c7 43 08 ff ff ff ff c7 03 01 00 00 00 5b c3 57 56 53 89 c3 <81> 78 04 ad 4e ad de 74 0a ba de 5f 2a c0 e8 8e fe ff ff 8b 53

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