Bug#663505: /sbin/start-stop-daemon: s-s-d segfaults on alpha when starting rrdcached

[Witold Baryluk <baryluk@smp.if.uj.edu.pl>]

Package: dpkg
Version: 1.16.1.2
Severity: important
File: /sbin/start-stop-daemon

I'm not sure if this is s-s-d bug or eglibc one, here is gdb session:

a02:~# gdb --args start-stop-daemon --start --quiet --oknodo --pidfile /var/run/rrdcached.pid --exec /usr/bin/rrdcached -- -l unix:/var/run/rrdcached.sock -j /var/lib/rrdcached/journal/ -F -b /var/lib/rrdcached/db/ -B -p /var/run/rrdcached.pid
GNU gdb (GDB) 7.4-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
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This GDB was configured as "alpha-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /sbin/start-stop-daemon...(no debugging symbols found)...done.
(gdb) r
Starting program: /sbin/start-stop-daemon --start --quiet --oknodo --pidfile /var/run/rrdcached.pid --exec /usr/bin/rrdcached -- -l unix:/var/run/rrdcached.sock -j /var/lib/rrdcached/journal/ -F -b /var/lib/rrdcached/db/ -B -p /var/run/rrdcached.pid
process 16599 is executing new program: /usr/bin/rrdcached
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/alpha-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
strlen () at ../ports/sysdeps/alpha/strlen.S:45
45      ../ports/sysdeps/alpha/strlen.S: Nie ma takiego pliku ani katalogu.
(gdb) bt full
#0  strlen () at ../ports/sysdeps/alpha/strlen.S:45
No locals.
#1  0x000002000083bda0 in *__GI___strdup (s=0x0) at strdup.c:42
        len = <optimized out>
#2  0x0000000120004534 in ?? ()
No symbol table info available.
#3  0x0000000120002c64 in ?? ()
No symbol table info available.
#4  0x00000200007ca84c in __libc_start_main (main=<optimized out>, argc=<optimized out>, ubp_av=<optimized out>, init=0x12000ad40, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x11fdeb640) at libc-start.c:228
        self = 0x0
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {4831882560, 0, 4831970936, 0, 4831970936, 4831970936, -7573792870751129764, -7573795069782489268, 
                -7573795073543097844, 0, 0, 0, 0, 0, 0, 0, 0}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, 
              canceltype = 0}}}
#5  0x0000000120003e18 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)


I'm not sure, why this only happens rrdcached initscript.

I do not have valgrind available (as it is not available for alpha yet,
or anymore), so debuging is harder. I belive strlen problems was
discussed some time ago on debian-alpha mailing list.

Regards,
Witek



-- System Information:
Debian Release: wheezy/sid
  APT prefers unreleased
  APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: alpha

Kernel: Linux 3.2.0-1-alpha-generic
Locale: LANG=pl_PL.UTF-8, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages dpkg depends on:
ii  coreutils    8.13-3
ii  libbz2-1.0   1.0.6-1
ii  libc6.1      2.13-26
ii  libselinux1  2.1.9-2
ii  xz-utils     5.1.1alpha+20110809-3
ii  zlib1g       1:1.2.6.dfsg-2

dpkg recommends no packages.

Versions of packages dpkg suggests:
ii  apt  0.8.15.10

-- no debconf information