[i changed the subject a bit ... this is no longer ppc :-]
Russell Cattelan <cattelan@xxxxxxxxxxx> wrote:
> Thomas Graichen wrote:
> Ok good...
> So everything thing looks good right after mkfs and the mount.
> The problem does appear to the first write to the super block.
> as shown by
> od -c -N 8 -j 512 /dev/sdb1
> not reporting XAGF
> My best guess that this point as to what it happening:
> We have added valid bits to the page structure, with each
> bit representing 1 512 byte block.
> It appears that someplace in the pagebuf math the basic unit
> is now 1024, rather than 512.
> Since the page size has doubled it does make sense the BB size has
> doubled.
> So now the trick is to find the problem.
> Lets verify the problem first
> just before the generic_make_request function in page_buf.c:
> _pagebuf_page_io
> printk ("_pagebuf page io calling gmk itr %d bh
> 0x%p block %d size %ld\t",itr,
> psync->bh[itr],psync->bh[itr]->b_blocknr,psync->bh[itr]->b_size);
> { int i;
> for(i=0; i < 4; i++){
> printk("%c",psync->bh[itr]->b_data[i]);
> }
> printk("\n");
> }
> The numbers we will be interested in will be the b_ blocknr and the
> b_bsize.
ok - this is what i got for
root@cyan:/var/log# mkfs -t xfs -f -b size=8192 /dev/sdb1
meta-data=/dev/sdb1 isize=256 agcount=8, agsize=4142 blks
data = bsize=8192 blocks=33130, imaxpct=25
= sunit=0 swidth=0 blks, unwritten=0
naming =version 2 bsize=8192
log =internal log bsize=8192 blocks=1000
realtime =none extsz=65536 blocks=0, rtextents=0
root@cyan:/var/log# mount /dev/sdb1 /mnt
root@cyan:/var/log# echo test > /mnt/testfile
root@cyan:/var/log# umount /mnt
root@cyan:/var/log#
after a fresh reload of the modules
<6>page_buf cache Copyright (c) 2000 Silicon Graphics, Inc.
<6>XFS filesystem Copyright (c) 2000 Silicon Graphics, Inc.
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 0 size 1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 530079 size
512
<4>Start mounting filesystem: sd(8,17)
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265152 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 281151 size
1024 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 273151 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 269151 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 267151 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 266151 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265651 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265401 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265276 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265214 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265183 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265167 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265159 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265155 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265153 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265154 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265152 size
1024 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265152 size
1024 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265153 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265152 size
1024
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265153 size
1024 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265154 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f7280 block 265170 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 265186 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7b40 block 265202 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7a00 block 265218 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7aa0 block 265234 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d6f60 block 265250 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7960 block 265266 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d69c0 block 265282 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d76e0 block 265298 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d6d80 block 265314 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7460 block 265330 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7e60 block 265346 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7f00 block 265362 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7d20 block 265378 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7dc0 block 265394 size
8192 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 128 size 8192
<4>Ending clean XFS mount for filesystem: sd(8,17)
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 2 size 512
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 48 size 8192
°c4
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 1 size 512
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 3 size 512
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 32 size 8192
VÓ#
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f71e0 block 16 size 8192
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f7280 block 265154 size
3072 þíº¾
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f7280 block 2 size 512
XAGI
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 48 size 8192
IABT
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7dc0 block 1 size 512
XAGF
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7d20 block 32 size 8192
ABTC
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7f00 block 16 size 8192
ABTB
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7e60 block 0 size 1024
XFSB
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00041d7460 block 128 size 8192
INAí
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 0 size 1024
XFSB
<4>_pagebuf page io calling gmk itr 0 bh 0xfffffc00054f6600 block 265160 size
1024 þíº¾
i hope it is complete - because there are problems with the prink's not
getting out all - klogd and syslogd seem to eat them up somehow - the
above is what i got using "cat /proc/kmsg" which should be fine i
think
please let me know if you need also output from some more fs activity
than just that simple echo to file (but i thought this might be
simpler for you to find somthing in)
good luck
t
p.s.: is there any trick to get the printk stuff out in a more prefect
way (i.e. complete and in perfect sync via klogd/syslogd)?
--
thomas.graichen@xxxxxxxxxxxxxx
technical director innominate AG
clustering & security the linux architects
tel: +49-30-308806-13 fax: -77 http://www.innominate.com
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