[Libguestfs] guestfsd crashes when the handle is closed

[Safa Rekik]

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 at 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 at 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
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