[Ocfs2-devel] [2.6.6 svn 1364]System hang randomly when writing to the same file from different processes of the same node

[Mark Fasheh <mark.fasheh@oracle.com>]

Are all your nodes updated to r1364 btw? That'd make a big difference as the
voting flags got juggled around a bit (sorry!) Otherwise it looks like it's
hung doing a TRUNCATE_PAGES message which would be very troubling indeed. If
both nodes *are* in fact, running 1364, you mind posting your test code up
so I can give it a try? Thanks,
	--Mark

On Fri, Aug 20, 2004 at 04:24:37PM +0800, Chen, Yukun wrote:
> Hi all
>
> 
> Steps to duplicate:
> 
> 1.Do some operation ,such as mkdir&touch , on node A and node B
> 
>  
> 
> 2.on node A process1  write to a file at a specific position(such as offset
> 1000) ,100 times
> 
>  
> 
> 2.also on node A, at the same time , process2 write to the same file at the
> 
>  
> 
> same position, 100 times
> 
>  
> 
> Repeat step 1-2 several times, system will hang with the following message
> found in node A:
> 
>  
> 
> state=1, lockid=22765568, flags = 0x1000, asked type = 5 master = 1, state =
> 0x0, type = 5
> 
> (18397) ERROR at /tmp/trunk/src/dlm.c, 461: status = -110
> 
> (18397) ERROR at /tmp/trunk/src/vote.c, 910: inode 5558, vote_status=0,
> vote_state=1, lockid=22765568, flags = 0x1000, asked type = 5 master = 1, state
> = 0x0, type = 5
> 
> ...
> 
>  
> 
> on node B , error message with dmesg:
> 
> Call Trace:
> 
> recalc_task_prio
> 
> shedule
> 
> ocfs_comm_process_msg
> 
> ocfs_dlm_recv_msg
> 
> worker_thread
> 
> ocfs_dlm_recv_msg
> 
> default_wake_function
> 
> ....
> 
>  
> 
> Any ideas on it? thanx.
> 
>  
> 
> Aaron
> 
> Intel China Software Lab
> 
> Tel:  8621-52574545 Ext.1587
> 
> E_mail:yukun.chen@intel.com
> 
>  
> 

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--
Mark Fasheh
Software Developer, Oracle Corp
mark.fasheh@oracle.com