[sheepdog] Segfault for 0.4.0 branch

[MORITA Kazutaka]

At Wed, 11 Jul 2012 01:37:35 +0800,
Yunkai Zhang wrote:
> 
> On Mon, Jul 9, 2012 at 11:30 AM, Liu Yuan <namei.unix at gmail.com> wrote:
> > On 07/09/2012 11:25 AM, Liu Yuan wrote:
> >> On 07/09/2012 09:58 AM, Liu Yuan wrote:
> >>> Got an weird segfault,
> >>>
> >>> (gdb) where
> >>> #0  0x0000000000411936 in do_process_work (work=0xd13c70) at ops.c:992
> >>> #1  0x000000000040ed05 in worker_routine (arg=0xd12a20) at work.c:171
> >>> #2  0x00007f43f992c971 in start_thread (arg=<value optimized out>) at
> >>> pthread_create.c:304
> >>> #3  0x00007f43f8eeef3d in clone () at
> >>> ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
> >>> #4  0x0000000000000000 in ?? ()
> >>>
> >>> sheep.log:
> >>> ...
> >>> Jul 09 09:47:23 [main] client_handler(764) connection seems to be dead
> >>> Jul 09 09:47:23 [main] clear_client(703) refcnt:0, fd:14, ::1:43328
> >>> Jul 09 09:47:23 [main] destroy_client(672) connection from: ::1:43328
> >>> Jul 09 09:47:23 [main] cdrv_cpg_deliver(448) 5
> >>> Jul 09 09:47:23 [main] sd_notify_handler(851) size: 96, from: IPv4
> >>> ip:127.0.0.1 port:7000
> >>> Jul 09 09:47:23 [main] client_tx_handler(663) connection from: 13, ::1:43330
> >>> Jul 09 09:47:23 [main] client_handler(764) connection seems to be dead
> >>> Jul 09 09:47:23 [main] clear_client(703) refcnt:0, fd:13, ::1:43330
> >>> Jul 09 09:47:23 [main] destroy_client(672) connection from: ::1:43330
> >>> Jul 09 09:47:23 [main] listen_handler(819) accepted a new connection: 13
> >>> Jul 09 09:47:23 [main] listen_handler(819) accepted a new connection: 14
> >>> Jul 09 09:47:23 [block] do_process_work(990) 80, 0 , 32579 <--- XXX
> >>> Jul 09 09:47:23 [main] client_rx_handler(577) connection from: 14, ::1:43337
> >>> Jul 09 09:47:23 [main] queue_request(323) 2
> >>> Jul 09 09:47:23 [main] crash_handler(408) sheep pid 5326 exited
> >>> unexpectedly.
> >>>
> >>> Thanks,
> >>> Yuan
> >>>
> >>
> >> Yet another segfault.
> >>
> >> #0  __libc_free (mem=0x7f3301864000) at malloc.c:3709
> >> 3709  malloc.c: No such file or directory.
> >>       in malloc.c
> >> (gdb) where
> >> #0  __libc_free (mem=0x7f3301864000) at malloc.c:3709
> >> #1  0x00000000004090a1 in free_request (req=0x7f32fc000a00) at sdnet.c:474
> >> #2  0x00000000004098bd in client_tx_handler (ci=0x7f32fc0143c0) at
> >> sdnet.c:656
> >> #3  0x0000000000409d32 in client_handler (fd=14, events=4,
> >> data=0x7f32fc0143c0) at sdnet.c:760
> >> #4  0x000000000041e470 in event_loop (timeout=-1) at event.c:179
> >> #5  0x0000000000404376 in main (argc=7, argv=0x7fff9f1566a8) at sheep.c:275
> >>
> >
> > Again and again:
> >
> > Program terminated with signal 11, Segmentation fault.
> > #0  0x00000000004118b4 in has_process_main (op=0x0) at ops.c:981
> > 981             return !!op->process_main;
> 
> I have fix this segment fault, see my newest patch.

I've updated the for-0.4.0 branch.  Yuan, can you try again?

Thanks,

Kazutaka