On Mon, Apr 15, 2002 at 07:16:13AM +0100, Christoph Hellwig <[EMAIL PROTECTED]> wrote:
> Could you please give me the context of that line for the kernels you use?
> i.e. the function it is in and maybe the full function body?
>
> Having a kdb backtrace would also be nice.
Uf, I forgot about the function body, but details with kdb are coming:
bt gives:
EBP, EIP, Function(args)
0xddeee000 0xc013cbfd wait_for_buffers+0x4d(0,1,1,1,0)
0xddeeff64 0xc013ccc2 wait_for_locked_buffers+0x22(0,1,1,0,0)
0xddeeff94 0xc013cd10 sync_buffers+0x38(0,1,0xddeee000,1,0xbffffaf4)
0xc0106da3 system_call+0x33
btp gives:
EBP, EIP, Function(args)
0xddeeffb0 0xc013ce8e fsync_dev+0x82(0)
0xddeeffbc 0xc013ceb6 sys_sync+0x0a(0xbffffaf4,2,0x40134e88,1,0xbffffaf4)
0xc0106da3 system_call+0x33
registers:
eax=0x04
esi=0x00
ebp=0xddeeff44
xds=0xddee0018
ebx=0xddeee000
edi=0x22
xss=0x18
xes=0xdcdaca80
esp=0xddeeff30
xsc=0x10
origeax=0xffffff01
edx=0xdcdaca80
eip=0xc013cbdd
eflags=0x282
®s=0xddeefefc
the function wait_for_buffers itself starts at 0xc013cbb0:
push %ebp
mov %esp, %ebp
push %edi
push %esi
push %ebx
mov 0x08(%ebp), %eax
mov %eax, 0xfffffffe(%ebp)
mov 0x0c(%ebp), %eax
shl $0x02, %eax
mov 0xc0407a4c(%eax), %edx
mov %edx, 0xfffffff8(%ebp)
mov 0xc0407a58(%eax), %edi
test %edx, %edx
je 0xc013cc7d
dec %edi
js 0xc013cc7d
mov $0xfffffe000, %ebx
and %esp, %ebx
nop
lea 0x00(%esi,1), %esi
mov 0xfffffff8(%ebp), %esi
mov 0x20(%esi), %eax
mov %eax, 0xfffffff8(%ebp)
testb $0x04, 0x18(%esi)
jne 0xc013cc70
push %esi
call 0xc013de74 (__refile_buffer)
add $0x04, %esp
jmp 0xc013cc70
I will look for the function of wait_for_buffers, and include it here. Do you
need other things?
Btw, my config is a PIII/1.2GHz, kernel optimized for PIII, loop is in module
as well as jfs; gcc is version 2.95.4.
Thanks,
GCS
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