Safa Rekik
2014-May-15 13:23 UTC
Re: [Libguestfs] guestfsd crashes when the handle is closed
Hello,
This is the ouotput for fedora guest.
=========================================*#0 0xb73b7040 in exit () from
/lib/libc.so.6*
No symbol table info available.
*#1 0xb76fb3a8 in main_loop (_sock=_sock@entry=3) at proto.c:112*
xdr = {x_op = XDR_DECODE, x_ops = 0xb753db00 <xdrmem_ops>,
x_public = 0x0, x_private = 0xbba929d8 ".0", x_base =
0xbba929b0
"",
x_handy = 0}
buf = <optimized out>
lenbuf = "\000\000\000("
len = 40
hdr = {prog = 536933877, vers = 4,
proc = GUESTFS_PROC_INTERNAL_AUTOSYNC,
direction = GUESTFS_DIRECTION_CALL, serial = 1192960,
progress_hint = 0, optargs_bitmask = 0, status GUESTFS_STATUS_OK}
*#2 0xb76d3190 in main (argc=2, argv=0xbfedcf34) at guestfsd.c:342*
options = <synthetic pointer>
long_options = {{name = 0xb77448b2 "help", has_arg = 0, flag =
0x0,
val = 63}, {name = 0xb7745fb9 "verbose", has_arg = 0, flag
0x0,
val = 118}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}}
c = <optimized out>
statbuf = {st_dev = 64769, __pad1 = 0, __st_ino = 2, st_mode 16877,
st_nlink = 18, st_uid = 0, st_gid = 0, st_rdev = 0, __pad2 = 0,
st_size = 4096, st_blksize = 4096, st_blocks = 8, st_atim = {
tv_sec = 1400158599, tv_nsec = 226617083}, st_mtim = {
tv_sec = 1400154384, tv_nsec = 581000000}, st_ctim = {
tv_sec = 1400154389, tv_nsec = 390000000}, st_ino = 2}
sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1},
sa_mask = {__val = {0 <repeats 32 times>}}, sa_flags = 0,
sa_restorer = 0x0}
channel = <optimized out>
p = <optimized out>
sock = 3
lenbuf = "\365\365", <incomplete sequence \365>
xdr = {x_op = XDR_ENCODE, x_ops = 0xb753db00 <xdrmem_ops>,
x_public = 0xb76acc46 <_dl_lookup_symbol_x+214>
"\203",
<incomplete sequence \370>,
x_private = 0xbfedcd80 "_IMAGE=/vmlinuz-3.11.10-301.fc20.i686
root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap
vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet
LANG=fr_FR.UTF-8\n",
x_base = 0xbfedcd7c
"\365\365_\365_IMAGE=/vmlinuz-3.11.10-301.fc20.i686
root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap
vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet
LANG=fr_FR.UTF-8\n", x_handy = 0}
len = 4126498805
==============================================
2014-05-15 13:20 GMT+02:00 Richard W.M. Jones <rjones@redhat.com>:
> On Thu, May 15, 2014 at 01:13:47PM +0200, Safa Rekik wrote:
> > For fedora 20 guest, this is the back trace output :
> > ====================================> > *(gdb) bt full*
> > #0 0xb73e2040 in exit () from /lib/libc.so.6
> > No symbol table info available.
> > #1 0xb77263a8 in main_loop ()
> > No symbol table info available.
> > #2 0xb76fe190 in main ()
> > No symbol table info available.
>
> You should install the 'libguestfs-debuginfo' package which will
> produce detailed line numbers. It's not possible to tell what is
> happening from this output.
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat
> http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> virt-df lists disk usage of guests without needing to install any
> software inside the virtual machine. Supports Linux and Windows.
> http://people.redhat.com/~rjones/virt-df/
>
--
Safa REKIK
Richard W.M. Jones
2014-May-15 13:48 UTC
Re: [Libguestfs] guestfsd crashes when the handle is closed
On Thu, May 15, 2014 at 03:23:53PM +0200, Safa Rekik wrote:> Hello, > > This is the ouotput for fedora guest. > =========================================> *#0 0xb73b7040 in exit () from /lib/libc.so.6* > No symbol table info available. > > *#1 0xb76fb3a8 in main_loop (_sock=_sock@entry=3) at proto.c:112*Definitely not what I was expecting: if (len > GUESTFS_MESSAGE_MAX) { fprintf (stderr, "guestfsd: incoming message is too long (%u bytes)\n", len); exit (EXIT_FAILURE); } Are you using two radically different versions of libguestfs on the client and server? (It would have to be really different versions, since it is a long time since we broke backwards compatibility) Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v
Safa Rekik
2014-May-15 14:47 UTC
Re: [Libguestfs] guestfsd crashes when the handle is closed
Hello, In the client side i have guestfish 1.26.1. For the server, guestfsd was installed with libguestfs-live-service 1.26.1 too. So i don't think this is the problem. BTW, isn't ther a libguestfs-debuginfo packages for debian/ubuntu. Because this is what i am looking for actualy. In fedora , i the daemon works fine when i use it via the libguestfs-live-service .(launch it with *systemctl start guestfsd.service*. ). Actually , i am just testing the guestfsd 1.26 behaviour in fedora to see whether it would be worth compiling it in ubuntu/debian (i think there is no libguestfs 1.26 for debian/ubuntu yet) . 2014-05-15 15:48 GMT+02:00 Richard W.M. Jones <rjones@redhat.com>:> On Thu, May 15, 2014 at 03:23:53PM +0200, Safa Rekik wrote: > > Hello, > > > > This is the ouotput for fedora guest. > > =========================================> > *#0 0xb73b7040 in exit () from /lib/libc.so.6* > > No symbol table info available. > > > > *#1 0xb76fb3a8 in main_loop (_sock=_sock@entry=3) at proto.c:112* > > Definitely not what I was expecting: > > if (len > GUESTFS_MESSAGE_MAX) { > fprintf (stderr, "guestfsd: incoming message is too long (%u > bytes)\n", > len); > exit (EXIT_FAILURE); > } > > Are you using two radically different versions of libguestfs on the > client and server? (It would have to be really different versions, > since it is a long time since we broke backwards compatibility) > > Rich. > > -- > Richard Jones, Virtualization Group, Red Hat > http://people.redhat.com/~rjones > Read my programming and virtualization blog: http://rwmj.wordpress.com > virt-p2v converts physical machines to virtual machines. Boot with a > live CD or over the network (PXE) and turn machines into KVM guests. > http://libguestfs.org/virt-v2v >-- Safa REKIK