All,
I am using not open sourced(will open source it in future)ADMA driver
for PowerPC procerror. I tried to upgrade to newer kernel to get all
latest MD and async changes. I see some arguments are messed up between
do_async_xor() and ppc4xx_adma_prep_dma_mq_xor(). From the code I see
same number of arguments. But when I step through debugger src_cnt & len
arguments got corrupted. Is anything changed with async_xor() or
dmaengine.c ?
I Looked at Dan williams driver and everything looks ok. Any ideas ?
Regards,
Marri
(gdb) bt
#0 ppc460ex_adma_prep_dma_mq_xor (chan=0xdd61c4a4, dst=0x5af7, src=0x0,
src_cnt=492167168, len=3714768144, flags=3) at
drivers/dma/ppc460ex-adma.c:3113
#1 0xc01196e4 in async_xor (dest=<value optimized out>,
src_list=0xdd6addbc, offset=<value optimized out>, src_cnt=3, len=4096,
flags=ASYNC_TX_XOR_ZERO_DST, depend_tx=0x0, cb_fn=0xc01e42a8
<ops_complete_compute>, cb_param=0xd8986000) at
crypto/async_tx/async_xor.c:93
#2 0xc01e4bac in ops_run_compute5 (sh=<value optimized out>) at
drivers/md/raid5.c:641
#3 0xc01e6240 in raid_run_ops (sh=0xd8986000, ops_request=2) at
drivers/md/raid5.c:1147
#4 0xc01e6734 in handle_stripe5 (sh=0xd8986000) at
drivers/md/raid5.c:2945
#5 0xc01e786c in handle_stripe (sh=0xdd61c4a4, tmp_page=0x5af7) at
drivers/md/raid5.c:3233
#6 0xc01e8a44 in raid5d (mddev=0xdd74e800) at drivers/md/raid5.c:4082
#7 0xc01f4908 in md_thread (arg=<value optimized out>) at
drivers/md/md.c:5295
#8 0xc00386c8 in kthread (_create=<value optimized out>) at
kernel/kthread.c:83
#9 0xc000da8c in kernel_thread ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) p *src_list
No symbol "src_list" in current context.
(gdb) f 1
#1 0xc01196e4 in async_xor (dest=<value optimized out>,
src_list=0xdd6addbc, offset=<value optimized out>, src_cnt=3, len=4096,
flags=ASYNC_TX_XOR_ZERO_DST, depend_tx=0x0, cb_fn=0xc01e42a8
<ops_complete_compute>, cb_param=0xd8986000) at
crypto/async_tx/async_xor.c:93
93 tx = dma->device_prep_dma_xor(chan, dma_dest,
&dma_src[src_off],
(gdb) p *src_list
$13 = (struct page *) 0xe
(gdb)
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