[Pvfs2-developers] Hang at server shutdown

[Scott Atchley]

On Jan 18, 2007, at 2:41 PM, Sam Lang wrote:

> Hi Scott,
>
> That's not what I suspected but its still helpful.  It looks like  
> the hang is in trove_handle_mgmt_finalize().  Probably trying to  
> lock the trove_handle_mutex, but I'm not sure.   I don't see any  
> other cases where that mutex would already be locked somewhere  
> else.  Can you run the server in gdb, Ctrl-C when it hangs, and  
> send the backtrace?
>
> Thanks,
>
> -sam

To answer my own question, send a HUP, then continue the process in  
GDB. :-)

Here is your backtrace:

Program received signal SIGINT, Interrupt.
0xb7d48129 in mallopt () from /lib/tls/libc.so.6
(gdb) bt
#0  0xb7d48129 in mallopt () from /lib/tls/libc.so.6
#1  0xb7d47f6e in mallopt () from /lib/tls/libc.so.6
#2  0xb7d46dcb in free () from /lib/tls/libc.so.6
#3  0x080cbb80 in extentlist_free (e=0x8174a08)
     at src/io/trove/trove-handle-mgmt/trove-extentlist.c:105
#4  0x080cb48b in trove_handle_ledger_free (hl=0x81749b8)
     at src/io/trove/trove-handle-mgmt/trove-ledger.c:114
#5  0x080b3f43 in trove_handle_mgmt_finalize ()
     at src/io/trove/trove-handle-mgmt/trove-handle-mgmt.c:591
#6  0x08071341 in trove_finalize (method_id=TROVE_METHOD_DBPF)
     at src/io/trove/trove-mgmt.c:136
#7  0x08055f35 in server_shutdown (status=262143, ret=0, siglevel=1)
     at src/server/pvfs2-server.c:1521
#8  0x08054341 in main (argc=4, argv=0xbff31e74) at src/server/pvfs2- 
server.c:704

Scott