[Gluster-devel] pre6 - SEGV on first try

Amar S. Tumballi amar at zresearch.com
Tue Jul 24 16:11:33 UTC 2007


Hi August,
 Hope this link helps you.

http://www.gluster.org/docs/index.php/GlusterFS_Building_RPMs

-amar

On 7/24/07, August R. Wohlt <glusterfs at isidore.net> wrote:
>
> HI avati -
>
> Indeed, I had the pre5_3 rpms installed earlier in the path. I've removed
> them, re-installed pre6 and everything looks good now. I'll go see if I
> can't get the clients to segfault now :-)
>
> As an aside, when will the rpms be updated to pre6 on the download site?
>
> thanks,
> :goose
>
> On 7/24/07, Anand Avati <avati at zresearch.com> wrote:
> >
> > August,
> >   thanks for trying pre6. The bug you have reported was fixed long back,
> > much before the pre6. Also the line numbers from the backtrace dont
> match
> > that of pre6 either. Are you sure that the server you have run is from
> the
> > pre6 release? please confirm.
> >
> > thanks,
> > avati
> >
> > 2007/7/24, August R. Wohlt <glusterfs at isidore.net>:
> > >
> > > Hello,
> > >
> > > I downloaded pre6 today and compiled it. glusterfsd starts up
> > > successfully,
> > > but if I connect to the socket then disconnect, it segfaults. It does
> > > this
> > > every time. The server never segfaulted with pre5 on the same
> > > configuration,
> > > though my clients did at random times after heavy load inside
> > > write-behind.
> > > Hope this report helps:
> > >
> > > Distro is CentOS 5 - stock kernel, latest yum updates, everything
> > > included
> > > in installation.
> > > [emu at chai ~]$ uname -a
> > > Linux chai 2.6.18-8.1.8.el5xen #1 SMP Tue Jul 10 07:06:45 EDT 2007
> > > x86_64
> > > x86_64 x86_64 GNU/Linux
> > >
> > > fuse: fuse-2.7.0 - built by hand with standard installation:
> > > ./configure
> > > make
> > > make install
> > > modprobe fuse
> > >
> > > glusterfs downloaded, untarred and built like so:
> > >
> > > ./configure --prefix=/usr
> > > make CFLAGS='-g -O0'
> > > make install
> > >
> > > started with this config:
> > >
> > > volume test_ko
> > >   type storage/posix
> > >   option directory /home/vg_3ware1/test/ko
> > > end-volume
> > >
> > > volume test_op
> > >   type storage/posix
> > >   option directory /home/vg_3ware1/test/op
> > > end-volume
> > >
> > > ### Add network serving capability to above brick.
> > > volume server
> > >   type protocol/server
> > >   option transport-type tcp/server     # For TCP/IP transport
> > >   option bind-address 192.168.2.5     # Default is to listen on all
> > > interfaces
> > >   subvolumes test_ko test_op
> > >   option auth.ip.test_op.allow * # Allow access to "brick" volume
> > >   option auth.ip.test_ko.allow * # Allow access to "brick" volume
> > > end-volume
> > >
> > >
> > > To produce the segfault, I simply telnet to the port and immediately
> > > disconnect. Dumps every time:
> > >
> > > telnet 192.168.2.5 6996
> > > ^]quit
> > >
> > > Backtrace from gdb shows:
> > >
> > > [emu at chai ~]$ sudo gdb glusterfsd
> > > GNU gdb Red Hat Linux (6.5-16.el5rh )
> > > Copyright (C) 2006 Free Software Foundation, Inc.
> > > GDB is free software, covered by the GNU General Public License, and
> you
> > > are
> > > welcome to change it and/or distribute copies of it under certain
> > > conditions.
> > > Type "show copying" to see the conditions.
> > > There is absolutely no warranty for GDB.  Type "show warranty" for
> > > details.
> > > This GDB was configured as "x86_64-redhat-linux-gnu"...(no debugging
> > > symbols found)
> > > Using host libthread_db library "/lib64/libthread_db.so.1".
> > >
> > > (gdb) set args -N
> > > (gdb) run
> > > Starting program: /sbin/glusterfsd -N
> > > warning: Lowest section in system-supplied DSO at 0xffffe000 is .hash
> at
> > >
> > > ffffe0b4
> > > (no debugging symbols found)
> > > (no debugging symbols found)
> > > [Thread debugging using libthread_db enabled]
> > > [New Thread 4160661184 (LWP 26983)]
> > > glusterfsd: WARNING: ignoring stale pidfile for PID 26972
> > > [New Thread 4160658320 (LWP 26986)]
> > >
> > > Program received signal SIGSEGV, Segmentation fault.
> > > [Switching to Thread 4160661184 (LWP 26983)]
> > > 0x4a76f2a0 in pthread_mutex_lock () from //lib/libpthread.so.0
> > > (gdb) bt
> > > #0  0x4a76f2a0 in pthread_mutex_lock () from //lib/libpthread.so.0
> > > #1  0xf75dd895 in get_frame_for_transport (trans=0x8055ee0) at
> > > server-protocol.c:5525
> > > #2  0xf75de225 in notify (this=0x8050f28, event=2, data=0x8055ee0) at
> > > server-protocol.c:5638
> > > #3  0x47611c87 in transport_notify (this=0x0, event=0) at transport.c
> > > :152
> > > #4  0x476126f9 in sys_epoll_iteration (ctx=0xff89f348) at epoll.c:54
> > > #5  0x47611d5d in poll_iteration (ctx=0xff89f348) at transport.c:260
> > > #6  0x08049150 in main ()
> > >
> > > and the logs show:
> > >
> > > 2007-07-24 08:36:28 C [common-utils.c:208:gf_print_trace]
> > > debug-backtrace:
> > > Got signal (11), printing backtrace
> > > 2007-07-24 08:36:28 C [ common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/libglusterfs.so.0(gf_print_trace+0x2d) [0x476107ed]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > [0xffffe500]
> > > 2007-07-24 08:36:28 C [ common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/glusterfs/1.3.0-pre5.3/xlator/protocol/server.so [0xf75dd895]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/glusterfs/1.3.0- pre5.3/xlator/protocol/server.so(notify+0x1a5)
> > > [0xf75de225]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/libglusterfs.so.0(transport_notify+0x37) [0x47611c87]
> > > 2007-07-24 08:36:28 C [ common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/libglusterfs.so.0(sys_epoll_iteration+0xd9) [0x476126f9]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/libglusterfs.so.0(poll_iteration+0x1d) [0x47611d5d]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > [glusterfsd] [0x8049150]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > //lib/libc.so.6(__libc_start_main+0xdc) [0x4a63edec]
> > > 2007-07-24 08:36:28 C [common-utils.c:210:gf_print_trace]
> > > debug-backtrace:
> > > [glusterfsd] [0x8048b91]
> > > 2007-07-24 08:37:13 E [protocol.c:262:gf_block_unserialize_transport]
> > > libglusterfs/protocol: full_read of  header failed: peer ( 192.168.2.5
> )
> > >
> > > thanks for the great work!
> > > -goose
> > > _______________________________________________
> > > Gluster-devel mailing list
> > > Gluster-devel at nongnu.org
> > > http://lists.nongnu.org/mailman/listinfo/gluster-devel
> > >
> >
> >
> >
> > --
> > Anand V. Avati
> _______________________________________________
> Gluster-devel mailing list
> Gluster-devel at nongnu.org
> http://lists.nongnu.org/mailman/listinfo/gluster-devel
>



-- 
Amar Tumballi
http://amar.80x25.org
[bulde on #gluster/irc.gnu.org]



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