[OpenAFS-devel] openafs-1.2.6 namei-salvager destroys volumes

Hartmut Reuter reuter@rzg.mpg.de
Wed, 28 Aug 2002 10:40:11 +0200


In the meantime I remember: I had to set AFS_64BIT_IOPSW. Without it the 
macros VN_GET_INO and VN_SET_INO etc. do not fill the high order bits of 
   Inode. Many architectures have this already set in param.<arch>.h 
with the comment that it is needed for the namei-interface.

Hartmut

Hartmut Reuter wrote:
> 
> I remember such effects. The names you find by find are much too short. 
> Looks like the high order half of your Inode fileds were not properly 
> filled or they are not interpreted as int64.
> 
> Hartmut Reuter
> 
> Michael Niksch wrote:
> 
>> I compiled openafs-1.2.6 on AIX 4.3.3 with the
>> --enable-namei-fileserver flag. While the fileserver itself seems to be
>> working, running salvager destroys the data. The underlying /vicepa
>> filesystem is a standard JFS created by AIX 4.3.3.
>>
>> Any ideas what might be going wrong would be highly appreciated.
>>
>> Below is a demonstration of the problem, which occurs even on a newly
>> created, empty volume. Interestingly enough, no visible files in
>> /vicepa are deleted, nor does the number of used inodes change during
>> the run of salvager. Nevertheless, the volume is no longer accessible.
>> With actual data in the volume, I have even seen the fileserver refuse
>> to attach the volume at all after salvaging.
>>
>> # find /vicepa
>> /vicepa
>> /vicepa/lost+found
>> /vicepa/Lock
>> /vicepa/Lock/vicepa
>> /vicepa/AFSIDat
>> /vicepa/AFSIDat/README
>> # df /vicepa  Filesystem    512-blocks      Free %Used    Iused %Iused 
>> Mounted on
>> /dev/lv02         262144    253808    4%       21     1% /vicepa
>> # vos create vorab /vicepa test   Volume 536870986 created on 
>> partition /vicepa of vorab
>> # find /vicepa                 /vicepa
>> /vicepa/lost+found
>> /vicepa/Lock
>> /vicepa/Lock/vicepa
>> /vicepa/AFSIDat
>> /vicepa/AFSIDat/README
>> /vicepa/AFSIDat/8=
>> /vicepa/AFSIDat/8=/8=++U
>> /vicepa/AFSIDat/8=/8=++U/special
>> /vicepa/AFSIDat/8=/8=++U/special/zzzz5
>> /vicepa/AFSIDat/8=/8=++U/special/zzzz9
>> /vicepa/AFSIDat/8=/8=++U/special/zzzzD
>> /vicepa/AFSIDat/8=/8=++U/special/zzzzP
>> /vicepa/AFSIDat/8=/8=++U/+
>> /vicepa/AFSIDat/8=/8=++U/+/+
>> /vicepa/AFSIDat/8=/8=++U/+/+/=
>> /vicepa/V0536870986.vl
>> # df /vicepa  Filesystem    512-blocks      Free %Used    Iused %Iused 
>> Mounted on
>> /dev/lv02         262144    253720    4%       32     1% /vicepa
>> # fs mkm /afs/.t/test test
>> # ls -ld /afs/.t/test
>> drwxrwxrwx   2 root     system      2048 Aug 27 17:36 /afs/.t/test
>> # bos salvage vorab /vicepa
>> Note: Operation is performed on cell test.zurich.ibm.com
>> bos: shutting down fs.
>> Starting salvage.
>> bos: salvage completed
>> bos: restarting fs.
>> # bos getlog vorab SalvageLog
>> Fetching log file 'SalvageLog'...
>> Note: Operation is performed on cell test.zurich.ibm.com
>> @(#) OpenAFS 1.2.6 built  2002-08-21 08/27/2002 17:37:31 STARTING AFS 
>> SALVAGER 2.4 (/usr/afs/bin/salvager -f /vicepa)
>> 08/27/2002 17:37:31 SALVAGING FILE SYSTEM PARTITION /vicepa 
>> (device=vicepa)
>> 08/27/2002 17:37:31 ***Forced salvage of all volumes on this partition***
>> 08/27/2002 17:37:32 SALVAGING VOLUME 536870986.
>> 08/27/2002 17:37:32 test (536870986) not updated (created 08/27/2002 
>> 17:36)
>> 08/27/2002 17:37:32 Vnode 1: vnode.unique, 1, does not match inode 
>> unique, 0; fixed, but status will be wrong
>> 08/27/2002 17:37:32 Vnode 1: link count incorrect (was 2, now 0)
>> 08/27/2002 17:37:32 Salvaged test (536870986): 1 files, 2 blocks
>> 08/27/2002 17:37:32 SALVAGING OF PARTITION /vicepa COMPLETED
>> # bos getlog vorab FileLog
>> Fetching log file 'FileLog'...
>> Note: Operation is performed on cell test.zurich.ibm.com
>> Tue Aug 27 17:37:36 2002 File server starting
>> Tue Aug 27 17:37:37 2002 afs_krb_get_lrealm failed, using 
>> test.zurich.ibm.com.
>> Tue Aug 27 17:37:37 2002 Partition /vicepa: attached 1 volumes; 0 
>> volumes not attached
>> Tue Aug 27 17:37:37 2002 Getting FileServer name...
>> Tue Aug 27 17:37:37 2002 FileServer host name is 'vorab.zurich.ibm.com'
>> Tue Aug 27 17:37:37 2002 Getting FileServer address...
>> Tue Aug 27 17:37:37 2002 FileServer vorab.zurich.ibm.com has address 
>> 9.4.3.252 (0x90403fc or 0x90403fc in host byte order)
>> Tue Aug 27 17:37:37 2002 File Server started Tue Aug 27 17:37:37 2002
>> # find /vicepa       /vicepa
>> /vicepa/lost+found
>> /vicepa/Lock
>> /vicepa/Lock/vicepa
>> /vicepa/AFSIDat
>> /vicepa/AFSIDat/README
>> /vicepa/AFSIDat/8=
>> /vicepa/AFSIDat/8=/8=++U
>> /vicepa/AFSIDat/8=/8=++U/special
>> /vicepa/AFSIDat/8=/8=++U/special/zzzz5
>> /vicepa/AFSIDat/8=/8=++U/special/zzzz9
>> /vicepa/AFSIDat/8=/8=++U/special/zzzzD
>> /vicepa/AFSIDat/8=/8=++U/special/zzzzP
>> /vicepa/AFSIDat/8=/8=++U/+
>> /vicepa/AFSIDat/8=/8=++U/+/+
>> /vicepa/AFSIDat/8=/8=++U/+/+/=
>> /vicepa/V0536870986.vl
>> # ls -ld /afs/.t/test     ls: 0653-341 The file /afs/.t/test does not 
>> exist.
>> # df /vicepa         Filesystem    512-blocks      Free %Used    Iused 
>> %Iused Mounted on
>> /dev/lv02         262144    253720    4%       32     1% /vicepa
>>
> 
> 


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Hartmut Reuter                           e-mail reuter@rzg.mpg.de
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Computing Center of the Max-Planck-Gesellschaft (MPG) and the
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