Ext3 users - Jun 2001 - Assertion in buffer.c:1122 __refile_buffer

Started with buffer.c v1.19.  Reversing change works for me in
linux-2.4.6.

Loaded 16705 symbols from /lib/modules/2.4.6-pre3/System.map.
Symbols match kernel version 2.4.6.
Loaded 256 symbols from 12 modules.
Linux version 2.4.6-pre3 (root@home1) (gcc version 2.95.3 20010315 (release)) #2
Wed Jun 13 19:53:28 EDT 2001
----- SNIP -------
VFS: Disk change detected on device ide1(22,64)
Assertion failure in __refile_buffer() at buffer.c:1122:
"!journal_buffer_temp(bh)"
kernel BUG at buffer.c:1122!
invalid operand: 0000
CPU:    0
EIP:    0010:[__refile_buffer+93/1648]
EFLAGS: 00010286
eax: 0000001d   ebx: c3d3a9c0   ecx: c7748000   edx: c02a9864
esi: 00000002   edi: c3d3a9c0   ebp: 00000001   esp: c7bede28
ds: 0018   es: 0018   ss: 0018
Process kjournald (pid: 17, stackpage=c7bed000)
Stack: c02591c6 c025943a 00000462 00001000 00000002 c3d3a9c0 c01327fa c3d3a9c0 
       c01a6a87 c3d3a9c0 c3e05ec0 c3e36d20 c3d2720c c7bedfc8 00001000 00000002 
       c7bec000 00000003 c7bedfc8 c0105ba6 c0105d88 c017ed2c 00000001 00000040 
Call Trace: [refile_buffer+10/16] [ll_rw_block+423/624] [__up+22/32]
[__up_wakeup+8/16] [journal_commit_transaction+4412/9456]
[kjournald+267/464] [commit_timeout+0/16] 
       [kernel_thread+40/64] 

Code: 0f 0b 83 c4 0c 31 f6 f6 43 1b 40 0f 84 bc 01 00 00 83 7b 40 
VFS: Disk change detected on device fd(2,0)
Assertion failure in __refile_buffer() at buffer.c:1122:
"!journal_buffer_temp(bh)"
kernel BUG at buffer.c:1122!
invalid operand: 0000
CPU:    0
EIP:    0010:[__refile_buffer+93/1648]
EFLAGS: 00010286
eax: 0000001d   ebx: c3ded140   ecx: c7788000   edx: c02a98c4
esi: 00000002   edi: c3ded140   ebp: 00000001   esp: c7bede28
ds: 0018   es: 0018   ss: 0018
Process kjournald (pid: 17, stackpage=c7bed000)
Stack: c0259226 c025949a 00000462 00001000 00000002 c3ded140 c013286a c3ded140 
       c01a6af7 c3ded140 c5b94940 c4034d20 c3dee20c c7bedfc8 00001000 00000002 
       c7bec000 00000003 c7bedfc8 c0105ba6 c0105d88 c017ed9c 00000001 00000040 
Call Trace: [refile_buffer+10/16] [ll_rw_block+423/624] [__up+22/32]
[__up_wakeup+8/16] [journal_commit_transaction+4412/9456]
[kjournald+267/464] [commit_timeout+0/16] 
       [kernel_thread+40/64] 

Code: 0f 0b 83 c4 0c 31 f6 f6 43 1b 40 0f 84 bc 01 00 00 83 7b 40 

-- 
Albert Cranford Deerfield Beach FL USA
ac9410@bellsouth.net

Albert Cranford wrote:
> 
> Started with buffer.c v1.19.  Reversing change works for me in
> linux-2.4.6.
> 
I haven't tested at all with 2.4.6-anything.  It *should* be OK,
with appropriate mangling of fs.h to make the patch apply..

It looks like you may not have merged the corresponding
changes to commit.c and transaction.c.  Are you sure
everything's current?

BH_Temp buffers shouldn't be going into ll_rw_block()
at all - that's what the commit.c change did.

If you're sure everything's up-to-date, please
turn on buffer tracing.

On 14 Jun 2001 18:17:34 -0600, Andreas Dilger wrote:
> If you are doing journalling, I would propose the following:
> 1) copy config to new file
> 2) modify new file
> 3) copy original config to backup
> 4) mv modified file to replace original
> 
> The reason for doing this is that at no time will you NOT have a valid
> config file in place.  One mv is guaranteed atomic, whereas two are not.
To pick a minor nit, you can do this
a little more efficiently by making
step #3 a (hard) link of original
config to backup.

	Nigel.
--
[ Nigel Metheringham           Nigel.Metheringham@InTechnology.co.uk ]
[ Phone: +44 1423 850000                         Fax +44 1423 858866 ]
[ - Comments in this message are my own and not ITO opinion/policy - ]
[ ----- Security is not an add-on -- security is a way of life ----- ]