[Lustre-discuss] lustre+samba

[Klaus Steden]

Tamas,

I¹ve had issues with software that used POSIX file locking calls with Lustre
1.6 ... the same thing worked on Lustre 1.4, but I suspect it just failed
transparently and didn¹t actually involve any recording locking. Never saw
it panic anything, though, but I know that 1.6 doesn¹t support locking
(yet).

Klaus

On 1/31/08 2:10 AM, "Papp Tamas" <tompos at martos.bme.hu>did etch on stone
tablets:

> Dear All,
> 
> I try to use our cluster though samba share. Everything work fine, but
> I think, we should have -o flock at lustre mount time.
> 
> Great, it's work. But when I want to save a file on the share, I get
> this on the logs:
> 
> Jan 31 10:45:24 opteron-ren-11 kernel: LustreError:
> 24836:0:(file.c:2309:ll_file_flock()) unknown fcntl lock type: 32
> Jan 31 10:45:24 opteron-ren-11 kernel: LustreError:
> 24836:0:(file.c:2310:ll_file_flock()) LBUG
> Jan 31 10:45:24 opteron-ren-11 kernel: Lustre:
> 24836:0:(linux-debug.c:171:libcfs_debug_dumpstack()) can't show stack: kernel
> doesn't export show_task
> Jan 31 10:45:24 opteron-ren-11 kernel:
> Jan 31 10:45:24 opteron-ren-11 kernel: Call Trace:
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff8857ad0a>]
> :libcfs:lbug_with_loc+0x7a/0xc0
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff887c2a65>]
> :lustre:ll_file_flock+0x295/0x550
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff8025fa48>]
> do_page_fault+0x476/0x7b5
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff8868fba0>]
> :ptlrpc:ldlm_flock_completion_ast+0x0/0x690
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff802ac2ff>]
> audit_syscall_entry+0x141/0x174
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff802d39d6>]
> sys_flock+0x117/0x150
> Jan 31 10:45:24 opteron-ren-11 kernel:  [<ffffffff8025729c>]
> tracesys+0xdc/0xe1
> Jan 31 10:45:24 opteron-ren-11 kernel:
> Jan 31 10:45:24 opteron-ren-11 kernel: LustreError: dumping log to
> /tmp/lustre-log.1201772724.24836
> 
> 
> I attached the lustre-log.
> 
> What could cause this problem? The reason, I wanted to use flock is
> there are some softwares, which  cannot save files by various reasons
> on the cluster share (for example MS O2K3, Project 2K7).
> 
> But as I can see, right now doesn't matter, it is a notepad, or a
> Project 2K7.
> 
> 
> Cluster's version is 1.6.4.1 and 1.6.0.1 and I tested this with
> 1.6.4.1 and 1.6.2.
> 
> 
> What can I do?
> 
> 
> Thank you,
> 
> tamas
> 


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