Package: strace
Version: 4.5.20-2.3
Severity: normal
The strace(1) man page says:
-p pid Attach to the process with the process ID pid and
begin tracing. The trace may be terminated at any
time by a keyboard interrupt signal (CTRL-C).
strace will respond by detaching itself from the
traced process(es) leaving it (them) to continue
running. Multiple -p options can be used to attach
to up to 32 processes in addition to command (which
is optional if at least one -p option is given).
but it no longer works due to a new kernel security feature
(assuming /proc/sys/kernel/yama/ptrace_scope is set to 1).
Since strace is a debugging tool, it should start with higher
privileges (and drop them when possible) so that ptrace can be
used, as documented in the man page.
Note: the experimental version is currently broken (bug 702309),
that's why I report the problem against unstable.
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.9-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages strace depends on:
ii libc6 2.17-5
strace recommends no packages.
strace suggests no packages.
-- no debconf information
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