Bug#293042: vdr hangs with message cap_set_proc: Operation not permitted

[Juhani Simola]

Package: vdr
Version: 1.2.6-6
Severity: important

When starting vdr, it prints the following error message: 
"cap_set_proc: Operation not permitted" and hangs. 

Associated part from strace log:

time(NULL)                              = 1107203769
getuid32()                              = 1000
getgid32()                              = 1000
geteuid32()                             = 1000
getegid32()                             = 1000
capset(0x19980330, 0, {CAP_SYS_TIME, CAP_SYS_TIME, }) = -1 EPERM (Operation not permitted)
dup(2)                                  = 3
fcntl64(3, F_GETFL)                     = 0x8001 (flags O_WRONLY|O_LARGEFILE)
close(3)                                = 0
write(2, "cap_set_proc: Operation not perm"..., 38) = 38
stat64("/var/lib/video.00", {st_mode=S_IFDIR|0775, st_size=48, ...}) = 0
access("/var/lib/video.00", R_OK|W_OK|X_OK) = 0

Strace log of the forever loop vdr enters:

getpid()                                = 3454
getpid()                                = 3454
gettimeofday({1107203785, 681073}, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1107203785, 681156000}) = 0
futex(0x80fcef0, FUTEX_WAIT, 118, {0, 99917000}) = -1 ETIMEDOUT (Connection timed out)
getpid()                                = 3454
futex(0x80fcec0, FUTEX_WAKE, 1)         = 0
getpid()                                = 3454
getpid()                                = 3454
getpid()                                = 3454
gettimeofday({1107203785, 782060}, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1107203785, 782142000}) = 0
futex(0x80fcef0, FUTEX_WAIT, 119, {0, 99918000}) = -1 ETIMEDOUT (Connection timed out)
getpid()                                = 3454
futex(0x80fcec0, FUTEX_WAKE, 1)         = 0
getpid()                                = 3454


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.10n
Locale: LANG=C, LC_CTYPE=fi_FI (charmap=ISO-8859-1)

Versions of packages vdr depends on:
ii  adduser                       3.59       Add and remove users and groups
ii  debconf [debconf-2.0]         1.4.42     Debian configuration management sy
ii  makedev                       2.3.1-75   Creates device files in /dev
ii  vdr-kbd                       1.2.6-6    Video Disk Recorder for DVB cards 

-- debconf information:
* vdr/select_dvb_card: Cable
* vdr/showinfo:
* vdr/create_video_dir: true