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Re: [linux-lvm] LVM 0.9 snapshot and ext3



Proper OOPS output below, sorry, pasted useless one in prior message.

Nov 28 22:12:52 slippey kernel: Bad lvm_map in ll_rw_block 
Nov 28 22:12:52 slippey kernel: Assertion failure in
journal_write_metadata_buffer() at journal.c line
302: "!buffer_locked(bh_in)" 
Nov 28 22:12:52 slippey kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000 
Nov 28 22:12:52 slippey kernel: current->tss.cr3 = 00101000, %cr3 =
00101000 
Nov 28 22:12:52 slippey kernel: *pde = 00000000 
Nov 28 22:12:52 slippey kernel: Oops: 0002 
Nov 28 22:12:52 slippey kernel: CPU:    0 
Nov 28 22:12:52 slippey
kernel: EIP:    0010:[journal_write_metadata_buffer+60/436] 
Nov 28 22:12:52 slippey kernel: EFLAGS: 00010282 
Nov 28 22:12:52 slippey kernel: eax: 00000067   ebx: 00000000
ecx: 000000d4   edx: c6da6000 
Nov 28 22:12:52 slippey kernel: esi: c3b85c60   edi: c3b85c60
ebp: 00000000   esp: c3ac7e64 
Nov 28 22:12:53 slippey kernel: ds: 0018   es: 0018   ss: 0018 
Nov 28 22:12:53 slippey kernel: Process kjournald (pid: 968, process
nr: 60, stackpage=c3ac7000) 
Nov 28 22:12:53 slippey kernel: Stack: c01e2c20 0000012e c01e2c7a c3ac7fc4
c3b85c60 c7e3aac0 c3ac7fc8 00000000  
Nov 28 22:12:53 slippey kernel:        c015851c c7e3aac0 c3b85c60 c3ac7fc4
00000427 c6161a40 c5d9c8c0 c3aed3c0  
Nov 28 22:12:53 slippey kernel:        c5ae82a0 c5ae85a0 c5ae86a0 c6fb3560
c6fb3de0 c6fb3ee0 c10114a0 c7b89b20  
Nov 28 22:12:53 slippey kernel: Call Trace: [cprt+21728/40165]
[cprt+21818/40165] [journal_commit_transaction+1356/3588]
[kjournald+257/424] [commit_timeout+0/12] [kernel_thread+35/48]  
Nov 28 22:12:53 slippey kernel: Code: c6 05 00 00 00 00 00 83 c4 14 89 f6
8b 7c 24 1c 8b 47 18 a8  


On Wed, 29 Nov 2000, Jay Weber wrote:

> Hi,
> 
> I'm getting an oops while using ext3 and lvm snapshot (in the case where
> snapshot runs out of space).  I'm thinking if the snapshot is out of space
> it should disable and ext3 probably shouldn't oops since the journal is
> being written to the active source and not the snapshot.
> 
> This is using lvm 0.9 and ext3 0.05b using the writeback data journaling
> mode.
> 
> I've included the output below for any interested.
> 
> ----
> EXT3-fs: recovery complete.
> EXT3-fs: mounted filesystem with writeback data mode.
> lvm -- giving up to snapshot /dev/vol/foo on /dev/vol/snap due out of
> space
> Bad lvm_map in ll_rw_block
> Assertion failure in journal_write_metadata_buffer() at journal.c line
> 302: "!buffer_locked(bh_in)"
> Unable to handle kernel NULL pointer dereference at virtual address
> 00000000
> current->tss.cr3 = 00101000, %cr3 = 00101000
> *pde = 00000000
> Oops: 0002
> CPU:    0
> EIP:    0010:[<c0155540>]
> EFLAGS: 00010282
> eax: 00000067   ebx: 00000000   ecx: 000000d4   edx: c6da6000
> esi: c3b85c60   edi: c3b85c60   ebp: 00000000   esp: c3ac7e64
> ds: 0018   es: 0018   ss: 0018
> Process kjournald (pid: 968, process nr: 60, stackpage=c3ac7000)
> Stack: c01e2c20 0000012e c01e2c7a c3ac7fc4 c3b85c60 c7e3aac0 c3ac7fc8
> 00000000 
>        c015851c c7e3aac0 c3b85c60 c3ac7fc4 00000427 c6161a40 c5d9c8c0
> c3aed3c0 
>        c5ae82a0 c5ae85a0 c5ae86a0 c6fb3560 c6fb3de0 c6fb3ee0 c10114a0
> c7b89b20 
> Call Trace: [<c01e2c20>] [<c01e2c7a>] [<c015851c>] [<c0155341>]
> [<c0155230>] [<c0108c5f>] 
> Code: c6 05 00 00 00 00 00 83 c4 14 89 f6 8b 7c 24 1c 8b 47 18 a8 
> 
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> http://lists.sistina.com/mailman/listinfo/linux-lvm
> 



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