[Bug 1537125] Comment bridged from LTC Bugzilla
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Fri Jan 29 17:59:13 UTC 2016
------- Comment From naveen.n.rao at in.ibm.com 2016-01-29 09:40 EDT-------
Test results from Ravi:
----------------------------
Systemtap 2.3 on Ubuntu 14.04.03 with 3.13 kernel and proposed enabled
works fine on both ppc64el and on x86. Though, as mentioned in first
comment, "make check" fails on ppc64el. But we observed that "make check"
is also failing on x86.
DETAILS:
Systemtap 2.3 is working fine on ppc64el but with tweak. systemtap is not
able to find kernel debuginfo even if it's installed. We renamed
/usr/lib/debug/boot/vmlinux-3.13.0-76-generic
to
/usr/lib/debug/boot/vmlinux-3.13.0-76-generic.debug
to make stap2.3 working on ppc64el.
$ sudo stap -ve 'probe kernel.function("do_fork") { printf("hit\n"); }'
[sudo] password for ravi:
Pass 1: parsed user script and 95 library script(s) using 42112virt/32064res/5952shr/25344data kb, in 180usr/10sys/229real ms.
Multiple 'sys_ni_syscall' symbols found.Pass 2: analyzed script: 1 probe(s), 0 function(s), 0 embed(s), 0 global(s) using 247744virt/171840res/105152shr/65472data kb, in 710usr/110sys/1976real ms.
Pass 3: using cached /home/ravi/.systemtap/cache/31/stap_31fa92e1f4e1c009931ae3b7c69c27c1_934.c
Pass 4: using cached /home/ravi/.systemtap/cache/31/stap_31fa92e1f4e1c009931ae3b7c69c27c1_934.ko
Pass 5: starting run.
$
But "make check" on ppc64el is failing.
$ apt-get source systemtap
$ cd systemtap-2.3/
$ make check ======> This results to same error mentioned in first comment.
ppc64el machine details:
$ cat /etc/issue
Ubuntu 14.04.3 LTS \n \l ========> with -proposed enabled
$ uname -a
Linux ubuntu-140403-qemu-proposed 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:57:34 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux
$ stap --version ========> We installed systemtap/trusty-proposed
Systemtap translator/driver (version 2.3/0.158, Debian version 2.3-1ubuntu1.3 (trusty))
We observed that Systemtap 2.3 is working fine on x86 as well.
$ sudo stap -ve 'probe kernel.function("do_fork") { printf("hit\n"); }'
[sudo] password for ravi:
Pass 1: parsed user script and 95 library script(s) using 26540virt/16348res/2128shr/14816data kb, in 90usr/0sys/92real ms.
Pass 2: analyzed script: 1 probe(s), 0 function(s), 0 embed(s), 0 global(s) using 246140virt/151204res/112420shr/39244data kb, in 660usr/600sys/1733real ms.
Pass 3: using cached /home/ravi/.systemtap/cache/81/stap_811d223965dcd0a0a692262dc773f020_879.c
Pass 4: using cached /home/ravi/.systemtap/cache/81/stap_811d223965dcd0a0a692262dc773f020_879.ko
Pass 5: starting run.
$
And, "make check" on x86 is also failing with same error mentioned in
first comment.
x86 machine details:
$ cat /etc/issue
Ubuntu 14.04.3 LTS \n \l ========> with -proposed enabled
$ uname -a
Linux ubuntu-140403-qemu 3.13.0-76-generic #120-Ubuntu SMP Mon Jan 18 15:58:41 UTC 2016 i686 i686 i686 GNU/Linux
$stap --version ========> We installed systemtap/trusty-proposed
Systemtap translator/driver (version 2.3/0.158, Debian version 2.3-1ubuntu1.3 (trusty))
Regards,
Ravi
--
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https://bugs.launchpad.net/bugs/1537125
Title:
ubuntu-14.04.04: fail to run systemtap test suites
Status in systemtap package in Ubuntu:
New
Bug description:
---Problem Description---
ubuntu-14.04.04: fail to run systemtap test suites
---uname output---
Linux u140404 4.2.0-21-generic #25~14.04.1-Ubuntu SMP Thu Dec 3 13:55:42 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
Machine Type = power8
As per launchpad feature systemtap now supported and enabled on 14.04.04
- https://bugs.launchpad.net/ubuntu/+source/systemtap/+bug/1511347
Here are the steps followed to test systemtap -
1. Get 14.04.04 guest VM
2. apt-get update; apt-get install dpkg-dev; apt-get build-dep
systemtap
3. setup repo
codename=$(lsb_release -c | awk '{print $2}')
sudo tee /etc/apt/sources.list.d/ddebs.list << EOF
deb http://ddebs.ubuntu.com/ ${codename} main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-security main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-proposed main restricted universe multiverse
EOF
4. apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 428D7C01
5E0577F2
5. apt-get update
6. devel packages
apt-get install linux-image-`uname -r`-dbgsym
apt-get install linux-headers-4.2.0-24-generic
7. Install required dependencies
- dejagnu, elfutils-*
8. apt-get source systemtap
9. appy systemtap fixes
see BZ - https://bugzilla.linux.ibm.com/show_bug.cgi?id=131220
root at u140404:~/patch# ll
total 32
drwxr-xr-x 2 root root 4096 Jan 7 03:36 ./
drwx------ 8 root root 4096 Jan 7 03:55 ../
-rw-r--r-- 1 root root 6763 Jan 7 03:36 systemtap-1
-rw-r--r-- 1 root root 3094 Jan 7 03:35 systemtap-1511347.diff
-rw-r--r-- 1 root root 3472 Jan 7 03:36 systemtap-2
-rw-r--r-- 1 root root 5864 Jan 7 03:36 systemtap-3
cd /root/systemtap-2.3
apply above patch in below order
patch -p1 < /root/patch/systemtap-1511347.diff
patch -p1 < /root/patch/systemtap-1
patch -p1 < /root/patch/systemtap-2
patch -p1 < /root/patch/systemtap-3
10. ./configure; make -j10; make install
11. make check -------------------------------------------> failed
root at u140404:~/systemtap-2.3# make check
/bin/bash ./git_version.sh -k -s . -o git_version.h
make check-recursive
make[1]: Entering directory `/root/systemtap-2.3'
Making check in .
make[2]: Entering directory `/root/systemtap-2.3'
CXX stap-session.o
CXXLD stap
make check-local
make[3]: Entering directory `/root/systemtap-2.3'
SRCDIR=`cd .; pwd`; \
PWD=`pwd`; \
make -C testsuite check SYSTEMTAP_RUNTIME=$SRCDIR/runtime SYSTEMTAP_TAPSET=$SRCDIR/tapset LD_LIBRARY_PATH=$LD_LIBRARY_PATH${LD_LIBRARY_PATH:+:}$PWD/lib-elfutils:$PWD/lib-elfutils/systemtap SYSTEMTAP_PATH=$PWD SYSTEMTAP_INCLUDES=$PWD/includes RUNTESTFLAGS="" PKGLIBDIR="/usr/local/libexec/systemtap";
make[4]: Entering directory `/root/systemtap-2.3/testsuite'
Run "make check" or "make installcheck".
make check-DEJAGNU check-local
make[5]: Entering directory `/root/systemtap-2.3/testsuite'
srcdir='.'; export srcdir; \
EXPECT=expect; export EXPECT; \
if /bin/bash -c ""env XDG_DATA_DIRS= SYSTEMTAP_SYNC=1 LANG=C SYSTEMTAP_TESTREMOTES= SYSTEMTAP_TESTAPPS= SYSTEMTAP_RUNTIME=/root/systemtap-2.3/runtime SYSTEMTAP_TAPSET=/root/systemtap-2.3/tapset LD_LIBRARY_PATH=/root/systemtap-2.3/lib-elfutils:/root/systemtap-2.3/lib-elfutils/systemtap CRASH_LIBDIR=/usr/local/lib/systemtap PATH=/root/systemtap-2.3:$PATH SYSTEMTAP_PATH=/root/systemtap-2.3 SYSTEMTAP_INCLUDES=/root/systemtap-2.3/includes PKGLIBDIR=/usr/local/libexec/systemtap ./execrc runtest" --version" > /dev/null 2>&1; then \
exit_status=0; l='systemtap'; for tool in $l; do \
if "env XDG_DATA_DIRS= SYSTEMTAP_SYNC=1 LANG=C SYSTEMTAP_TESTREMOTES= SYSTEMTAP_TESTAPPS= SYSTEMTAP_RUNTIME=/root/systemtap-2.3/runtime SYSTEMTAP_TAPSET=/root/systemtap-2.3/tapset LD_LIBRARY_PATH=/root/systemtap-2.3/lib-elfutils:/root/systemtap-2.3/lib-elfutils/systemtap CRASH_LIBDIR=/usr/local/lib/systemtap PATH=/root/systemtap-2.3:$PATH SYSTEMTAP_PATH=/root/systemtap-2.3 SYSTEMTAP_INCLUDES=/root/systemtap-2.3/includes PKGLIBDIR=/usr/local/libexec/systemtap ./execrc runtest" --tool $tool --tool_opts \'\' --srcdir $srcdir ; \
then :; else exit_status=1; fi; \
done; \
else echo "WARNING: could not find '"env XDG_DATA_DIRS= SYSTEMTAP_SYNC=1 LANG=C SYSTEMTAP_TESTREMOTES= SYSTEMTAP_TESTAPPS= SYSTEMTAP_RUNTIME=/root/systemtap-2.3/runtime SYSTEMTAP_TAPSET=/root/systemtap-2.3/tapset LD_LIBRARY_PATH=/root/systemtap-2.3/lib-elfutils:/root/systemtap-2.3/lib-elfutils/systemtap CRASH_LIBDIR=/usr/local/lib/systemtap PATH=/root/systemtap-2.3:$PATH SYSTEMTAP_PATH=/root/systemtap-2.3 SYSTEMTAP_INCLUDES=/root/systemtap-2.3/includes PKGLIBDIR=/usr/local/libexec/systemtap ./execrc runtest"'" 1>&2; :;\
fi; \
exit $exit_status
/bin/bash: line 4: env XDG_DATA_DIRS= SYSTEMTAP_SYNC=1 LANG=C SYSTEMTAP_TESTREMOTES= SYSTEMTAP_TESTAPPS= SYSTEMTAP_RUNTIME=/root/systemtap-2.3/runtime SYSTEMTAP_TAPSET=/root/systemtap-2.3/tapset LD_LIBRARY_PATH=/root/systemtap-2.3/lib-elfutils:/root/systemtap-2.3/lib-elfutils/systemtap CRASH_LIBDIR=/usr/local/lib/systemtap PATH=/root/systemtap-2.3:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games SYSTEMTAP_PATH=/root/systemtap-2.3 SYSTEMTAP_INCLUDES=/root/systemtap-2.3/includes PKGLIBDIR=/usr/local/libexec/systemtap ./execrc runtest: No such file or directory
make[5]: *** [check-DEJAGNU] Error 1
make[5]: Leaving directory `/root/systemtap-2.3/testsuite'
make[4]: *** [check-am] Error 2
make[4]: Leaving directory `/root/systemtap-2.3/testsuite'
make[3]: *** [check-local] Error 2
make[3]: Leaving directory `/root/systemtap-2.3'
make[2]: *** [check-am] Error 2
make[2]: Leaving directory `/root/systemtap-2.3'
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory `/root/systemtap-2.3'
make: *** [check] Error 2
root at u140404:~/systemtap-2.3#
Manually ran cmd instead of make check -
cd testsuite
root at u140404:~/systemtap-2.3/testsuite# cat x
env XDG_DATA_DIRS= SYSTEMTAP_SYNC=1 LANG=C SYSTEMTAP_TESTREMOTES= SYSTEMTAP_TESTAPPS= SYSTEMTAP_RUNTIME=/root/systemtap-2.3/runtime SYSTEMTAP_TAPSET=/root/systemtap-2.3/tapset LD_LIBRARY_PATH=/root/systemtap-2.3/lib-elfutils:/root/systemtap-2.3/lib-elfutils/systemtap CRASH_LIBDIR=/usr/local/lib/systemtap PATH=/root/systemtap-2.3:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games SYSTEMTAP_PATH=/root/systemtap-2.3 SYSTEMTAP_INCLUDES=/root/systemtap-2.3/includes PKGLIBDIR=/usr/local/libexec/systemtap ./execrc runtest
root at u140404:~/systemtap-2.3/testsuite# ./x
WARNING: No tool specified
Test Run By root on Thu Jan 21 13:56:33 2016
Native configuration is powerpc64le-unknown-linux-gnu
=== tests ===
Schedule of variations:
unix
Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using ./config/unix.exp as tool-and-target-specific interface file.
kernel location: /boot/vmlinux-4.2.0-21-generic
kernel version: 4.2.0-21-generic
systemtap location: /root/systemtap-2.3/stap
systemtap version: version 2.3/0.158, Debian version 2.3-1ubuntu1.2 (trusty
gcc location: /usr/bin/gcc
gcc version: gcc (Ubuntu 4.8.4-2ubuntu1~14.04) 4.8.4
**** failed systemtap kernel-devel smoke test:
In file included from /root/systemtap-2.3/runtime/linux/task_finder.c:17:0,
from /root/systemtap-2.3/runtime/linux/runtime.h:188,
from /root/systemtap-2.3/runtime/runtime.h:24,
from /tmp/stapoLzh94/stap_79fa3140436d1423447aa39801d1b0c9_872_src.c:24:
/root/systemtap-2.3/runtime/linux/task_finder2.c: In function '__stp_call_mmap_callbacks_with_addr':
/root/systemtap-2.3/runtime/linux/task_finder2.c:703:24: error: 'struct file' has no member named 'f_dentry'
dentry = vma->vm_file->f_dentry;
^
/root/systemtap-2.3/runtime/linux/task_finder2.c: In function '__stp_utrace_attach_match_filename':
/root/systemtap-2.3/runtime/linux/task_finder2.c:821:11: error: incompatible types when assigning to type 'uid_t' from type 'kuid_t'
tsk_euid = task_euid(tsk);
^
/root/systemtap-2.3/runtime/linux/task_finder2.c: In function '__stp_call_mmap_callbacks_for_task':
/root/systemtap-2.3/runtime/linux/task_finder2.c:1206:42: error: 'struct file' has no member named 'f_dentry'
vma_cache_p->dentry = vma->vm_file->f_dentry;
^
/root/systemtap-2.3/runtime/linux/task_finder2.c: In function 'stap_start_task_finder':
/root/systemtap-2.3/runtime/linux/task_finder2.c:1711:12: error: incompatible types when assigning to type 'uid_t' from type 'kuid_t'
tsk_euid = task_euid(tsk);
^
In file included from /root/systemtap-2.3/runtime/linux/runtime.h:194:0,
from /root/systemtap-2.3/runtime/runtime.h:24,
from /tmp/stapoLzh94/stap_79fa3140436d1423447aa39801d1b0c9_872_src.c:24:
/root/systemtap-2.3/runtime/sym.c: In function '_stp_snprint_addr':
/root/systemtap-2.3/runtime/sym.c:567:4: error: implicit declaration of function 'preempt_enable_no_resched' [-Werror=implicit-function-declaration]
preempt_enable_no_resched();
^
In file included from include/linux/sched.h:56:0,
from ./arch/powerpc/include/asm/elf.h:12,
from include/linux/elf.h:4,
from include/linux/module.h:15,
from /root/systemtap-2.3/runtime/linux/runtime.h:14,
from /root/systemtap-2.3/runtime/runtime.h:24,
from /tmp/stapoLzh94/stap_79fa3140436d1423447aa39801d1b0c9_872_src.c:24:
/root/systemtap-2.3/runtime/transport/control.c: In function '_stp_ctl_write_cmd':
include/linux/cred.h:358:25: error: incompatible types when initializing type 'uid_t' using type 'kuid_t'
#define current_euid() (current_cred_xxx(euid))
^
/root/systemtap-2.3/runtime/transport/control.c:41:15: note: in expansion of macro 'current_euid'
uid_t euid = current_euid();
^
In file included from /root/systemtap-2.3/runtime/linux/print.c:17:0,
from /root/systemtap-2.3/runtime/print.c:17,
from /root/systemtap-2.3/runtime/runtime_context.h:22,
from /tmp/stapoLzh94/stap_79fa3140436d1423447aa39801d1b0c9_872_src.c:46:
/root/systemtap-2.3/runtime/transport/transport.c: In function '_stp_transport_init':
/root/systemtap-2.3/runtime/transport/transport.c:344:11: error: incompatible types when assigning to type 'uid_t' from type 'kuid_t'
_stp_uid = current_uid();
^
/root/systemtap-2.3/runtime/transport/transport.c:345:11: error: incompatible types when assigning to type 'gid_t' from type 'kgid_t'
_stp_gid = current_gid();
^
cc1: all warnings being treated as errors
make[1]: *** [/tmp/stapoLzh94/stap_79fa3140436d1423447aa39801d1b0c9_872_src.o] Error 1
make: *** [_module_/tmp/stapoLzh94] Error 2
WARNING: kbuild exited with status: 2
Pass 4: compilation failed. [man error::pass4]
Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
**** aborting testing.
root at u140404:~/systemtap-2.3/testsuite#
== Comment: #2 - Kalpana Shetty <kalshett at in.ibm.com> - 2016-01-21 13:59:42 ==
few other cmds as well failing -
root at u140404:~# stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
Pass 1: parsed user script and 95 library script(s) using 42752virt/32768res/5952shr/26048data kb, in 160usr/0sys/170real ms.
WARNING: cannot find module kernel debuginfo: No DWARF information found [man warning::debuginfo]
semantic error: while resolving probe point: identifier 'kernel' at /usr/local/share/systemtap/tapset/linux/vfs.stp:768:18
source: probe vfs.read = kernel.function("vfs_read")
^
semantic error: no match
semantic error: while resolving probe point: identifier 'vfs' at <input>:1:7
source: probe vfs.read {printf("read performed\n"); exit()}
^
Pass 2: analyzed script: 0 probe(s), 0 function(s), 0 embed(s), 0 global(s) using 65536virt/35776res/7552shr/27008data kb, in 10usr/0sys/6real ms.
Pass 2: analysis failed. [man error::pass2]
Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
root at u140404:~#
root at u140404:~# stap -e 'probe oneshot { println("hello world") }'
semantic error: while resolving probe point: identifier 'oneshot' at <input>:1:7
source: probe oneshot { println("hello world") }
^
semantic error: probe point mismatch (alternatives: __nd_syscall __nfs __scheduler __signal __tcpmib __vm _linuxmib _nd_syscall _signal _sunrpc _syscall _vfs begin begin(number) end end(number) error error(number) generic ioblock ioblock_trace ioscheduler ioscheduler_trace ipmib irq_handler kernel kprobe kprocess linuxmib module(string) nd_syscall netdev netfilter never nfs nfsd perf process process(number) process(string) procfs procfs(string) scheduler scsi signal socket softirq stap staprun sunrpc syscall tcp tcpmib timer tty udp vfs vm workqueue): identifier 'oneshot' at :1:7
source: probe oneshot { println("hello world") }
^
Pass 2: analysis failed. [man error::pass2]
Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
== Comment: #4 - Hemant K. Shaw <hemkshaw at in.ibm.com> - 2016-01-22 06:50:17 ==
This fails on x86 as well. Here is the o/p of a simple kprobe test :
The systemtap version is :
Systemtap translator/driver (version 2.3/0.158, Debian version 2.3-1ubuntu1.3 (trusty))
$ sudo stap -ve 'probe kernel.function("_do_fork") { printf("hit\n"); }'
Pass 1: parsed user script and 95 library script(s) using 26904virt/19216res/4640shr/15180data kb, in 90usr/0sys/97real ms.
Pass 2: analyzed script: 1 probe(s), 0 function(s), 0 embed(s), 0 global(s) using 268420virt/167580res/126684shr/41468data kb, in 760usr/90sys/857real ms.
Pass 3: translated to C into "/tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.c" using 268420virt/167704res/126808shr/41468data kb, in 10usr/0sys/6real ms.
In file included from /usr/share/systemtap/runtime/linux/task_finder.c:17:0,
from /usr/share/systemtap/runtime/linux/runtime.h:188,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.c:24:
/usr/share/systemtap/runtime/linux/task_finder2.c: In function ?__stp_call_mmap_callbacks_with_addr?:
/usr/share/systemtap/runtime/linux/task_finder2.c:703:24: error: ?struct file? has no member named ?f_dentry?
dentry = vma->vm_file->f_dentry;
^
/usr/share/systemtap/runtime/linux/task_finder2.c: In function ?__stp_utrace_attach_match_filename?:
/usr/share/systemtap/runtime/linux/task_finder2.c:821:11: error: incompatible types when assigning to type ?uid_t? from type ?kuid_t?
tsk_euid = task_euid(tsk);
^
/usr/share/systemtap/runtime/linux/task_finder2.c: In function ?__stp_call_mmap_callbacks_for_task?:
/usr/share/systemtap/runtime/linux/task_finder2.c:1206:42: error: ?struct file? has no member named ?f_dentry?
vma_cache_p->dentry = vma->vm_file->f_dentry;
^
/usr/share/systemtap/runtime/linux/task_finder2.c: In function ?stap_start_task_finder?:
/usr/share/systemtap/runtime/linux/task_finder2.c:1711:12: error: incompatible types when assigning to type ?uid_t? from type ?kuid_t?
tsk_euid = task_euid(tsk);
^
In file included from /usr/share/systemtap/runtime/linux/runtime.h:194:0,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.c:24:
/usr/share/systemtap/runtime/sym.c: In function ?_stp_snprint_addr?:
/usr/share/systemtap/runtime/sym.c:567:4: error: implicit declaration of function ?preempt_enable_no_resched? [-Werror=implicit-function-declaration]
preempt_enable_no_resched();
^
In file included from include/linux/sched.h:56:0,
from include/linux/ptrace.h:5,
from include/linux/ftrace.h:13,
from include/linux/kprobes.h:42,
from /usr/share/systemtap/runtime/linux/runtime.h:21,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.c:24:
/usr/share/systemtap/runtime/transport/control.c: In function ?_stp_ctl_write_cmd?:
include/linux/cred.h:358:25: error: incompatible types when initializing type ?uid_t? using type ?kuid_t?
#define current_euid() (current_cred_xxx(euid))
^
/usr/share/systemtap/runtime/transport/control.c:41:15: note: in expansion of macro ?current_euid?
uid_t euid = current_euid();
^
In file included from /usr/share/systemtap/runtime/linux/print.c:17:0,
from /usr/share/systemtap/runtime/print.c:17,
from /usr/share/systemtap/runtime/runtime_context.h:22,
from /tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.c:43:
/usr/share/systemtap/runtime/transport/transport.c: In function ?_stp_transport_init?:
/usr/share/systemtap/runtime/transport/transport.c:344:11: error: incompatible types when assigning to type ?uid_t? from type ?kuid_t?
_stp_uid = current_uid();
^
/usr/share/systemtap/runtime/transport/transport.c:345:11: error: incompatible types when assigning to type ?gid_t? from type ?kgid_t?
_stp_gid = current_gid();
^
cc1: all warnings being treated as errors
make[1]: *** [/tmp/stapwvyY7W/stap_96747bc38104f19f4e295204b6a5d176_873_src.o] Error 1
make: *** [_module_/tmp/stapwvyY7W] Error 2
WARNING: kbuild exited with status: 2
Pass 4: compiled C into "stap_96747bc38104f19f4e295204b6a5d176_873.ko" in 4460usr/400sys/5342real ms.
Pass 4: compilation failed. [man error::pass4]
Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
Kernel version :
4.2.0-26-generic #31~14.04.1-Ubuntu SMP Wed Jan 20 14:26:00 UTC 2016 i686 i686 i686 GNU/Linux
It looks like there is a mismatch between the kernel and the systemtap
version. Need to upgrade systemtap. For ubuntu 14.04.03, systemtap 2.3
worked because it has a older kernel and older systemtap. Its no more
the case now. The systemtap version needs to be upgraded.
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