Re: Strange problems/bugs with reiserfs and reiserfschk

["Konstantin Münning" <konstantin@muenning.com>]

Hi Everyone.

OK, there seems definitely to be some kind of bug in reiserfsck 3.6.19.
Or is it a feature? ;-)

I tried once again with reiserfsck --rebuild-tree to repair the FS and
here it is again. About the end of pass 2 (about 20h after starting)
counting stopped at "left 32022, 500 /sec" but there was heavy acccess
of the drive. After about an hour reiserfsck started consuming 100% CPU
and is doning some minimal access to the drive (the drive light blinks
every second or so, SCSI reports about 40 commands for each of these
accesses).

What could be causing this? Is the drive too large for reiserfsck? I
wouldn't believe that 0,6TB are but it is consuming at least quite a lot
of memory:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
15185 root      39  19 76304  51m  688 R 99.9 10.3   4591:30 reiserfsck

I have left it like this the last 3 days just to make sure that it's not
my lack of patience. But now still... So any advices? How to find out
what is causing reiserfsck to hang? Or would I have to build a debug
version and check for myself?

The drive itself is working, I checked several times, the server is
working all the time as well. Here some reiserfs output it it helps
somebody to have an idea:

(***snip***)
block 125371211: The number of items (1) is incorrect, should be (0) -
corrected
block 125371211: The free space (0) is incorrect, should be (4072) -
corrected
block 125506454: The number of items (1) is incorrect, should be (0) -
corrected
block 125506454: The free space (0) is incorrect, should be (4072) -
corrected
pass0: vpf-10160: block 129485584: item 2: No "." entry found in the
first item
of a directory
pass0: vpf-10160: block 129485584: item 4: No "." entry found in the
first item
of a directory
pass0: vpf-10160: block 133169584: item 14: No "." entry found in the
first item
 of a directory
pass0: vpf-10160: block 133169648: item 25: No "." entry found in the
first item
 of a directory
pass0: vpf-10160: block 133170064: item 10: No "." entry found in the
first item
 of a directory
pass0: vpf-10160: block 134316400: item 18: No "." entry found in the
first item
 of a directory
pass0: vpf-10560: block 145031172, item 7: Wrong order of items - change
the obj
ect_id of the key [2237738 2237741 0x1 DRCT (2)] to 2237740
pass0: vpf-10160: block 145817616: item 1: No "." entry found in the
first item
of a directory
                                                          left 0, 2623 /sec
914346 directory entries were hashed with "r5" hash.
        "r5" hash is selected
Flushing..finished
        Read blocks (but not data blocks) 94209553
                Leaves among those 3522616
                        - corrected leaves 319
                        - leaves all contents of which could not be
saved and de
leted 15
                pointers in indirect items to wrong area 24 (zeroed)
                Objectids found 984719

Pass 1 (will try to insert 3522601 leaves):
####### Pass 1 #######
Looking for allocable blocks .. finished
0%....20%....40%....is_leaf_bad: block 35452246, item 25: The corrupted
item fou
nd (878203 878203 0x0 SD (0), len 44, location 3056 entry count 65535,
fsck need
 1, format new)
is_leaf_bad: block 35452246, item 26: The corrupted item found (878203
878203 0x
1 DRCT (2), len 1464, location 1592 entry count 65535, fsck need 1,
format new)
is_leaf_bad: WARNING: The leaf (35452246) is formatted badly. Will be
handled on
 the the pass2.
60%....80%....100%                         left 0, 701 /sec
Flushing..finished
        3522601 leaves read
                3489821 inserted
                32780 not inserted
        non-unique pointers in indirect items (zeroed) 656
####### Pass 2 #######

Pass 2:
0%....20%....40%..rewrite_file: 2 items of file [2340286 2340312] moved
to [2340
286 16]
vpf-10260: The file we are inserting the new item (432679 432760 0xf001
IND (1),
 len 160, location 3936 entry count 0, fsck need 1, format new) into has
no Stat
Data, insertion was skipped
vpf-10260: The file we are inserting the new item (432679 432828 0x2a001
IND (1)
, len 132, location 3964 entry count 0, fsck need 1, format new) into
has no Sta
tData, insertion was skipped
(***snip***)
vpf-10260: The file we are inserting the new item (526132 526780 0x1 IND
(1), len 8, location 4088 entry count 0, fsck need 1, format new) into
has no StatData, insertion was skipped
vpf-10260: The file we are inserting the new item (557044 557073 0x1 IND
(1), len 4, location 4092 entry count 0, fsck need 3, format new) into
has no StatData, insertion was skipped
vpf-10260: The file we are inserting the new item (558483 558492 0x20001
IND (1), len 96, location 4000 entry count 0, fsck need 1, format new)
into has no StatData, insertion was skipped
vpf-10260: The file we are inserting the new item (759159 759160 0x1 IND
(1), len 3208, location 888 entry count 0, fsck need 1, format new) into
has no StatData, insertion was skipped
                                         left 32022, 500 /sec