--- Begin Message ---
Package: release.debian.org
Severity: normal
User: release.debian.org@packages.debian.org
Usertags: unblock
Dear Release Team,
This has ended up being quite late, but I request you to grant exception
for systemtap (3.1), which is currently in Experimental.
systemtap depends very closely on the Linux kernel's interfaces, which
if changed, make systemtap useless.
The current version of systemtap (3.0) in Debian Stretch is useless with
the kernel (4.9) shipped on it. Below is the stap log for a very simple
probe, that shows the interface changes.
rrs@chutzpah:~$ stap -e 'probe vfs.read {printf("read performed\n"); exit()}'In file included from /usr/share/systemtap/runtime/linux/runtime.h:209:0,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/share/systemtap/runtime/linux/access_process_vm.h: In function ‘__access_process_vm_’:
/usr/share/systemtap/runtime/linux/access_process_vm.h:36:61: error: passing argument 6 of ‘get_user_pages_remote’ makes pointer from integer without a cast [-Werror=int-conversion]
ret = get_user_pages_remote (tsk, mm, addr, 1, write, 1, &page, &vma);
^
In file included from /usr/src/linux-headers-4.9.0-2-common/include/linux/pid_namespace.h:6:0,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ptrace.h:8,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ftrace.h:13,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/kprobes.h:42,
from /usr/share/systemtap/runtime/linux/runtime.h:21,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/src/linux-headers-4.9.0-2-common/include/linux/mm.h:1298:6: note: expected ‘struct page **’ but argument is of type ‘int’
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/share/systemtap/runtime/linux/runtime.h:209:0,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/share/systemtap/runtime/linux/access_process_vm.h:36:64: error: passing argument 7 of ‘get_user_pages_remote’ from incompatible pointer type [-Werror=incompatible-pointer-types]
/usr/share/systemtap/runtime/linux/access_process_vm.h:36:64: error: passing argument 7 of ‘get_user_pages_remote’ from incompatible pointer type [-Werror=incompatible-pointer-types]
ret = get_user_pages_remote (tsk, mm, addr, 1, write, 1, &page, &vma);
^
^
In file included from /usr/src/linux-headers-4.9.0-2-common/include/linux/pid_namespace.h:6:0,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ptrace.h:8,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ftrace.h:13,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/kprobes.h:42,
from /usr/share/systemtap/runtime/linux/runtime.h:21,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/src/linux-headers-4.9.0-2-common/include/linux/mm.h:1298:6: note: expected ‘struct vm_area_struct **’ but argument is of type ‘struct page **’
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/share/systemtap/runtime/linux/runtime.h:209:0,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/share/systemtap/runtime/linux/access_process_vm.h:36:13: error: too many arguments to function ‘get_user_pages_remote’
ret = get_user_pages_remote (tsk, mm, addr, 1, write, 1, &page, &vma);
^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/src/linux-headers-4.9.0-2-common/include/linux/pid_namespace.h:6:0,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ptrace.h:8,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/ftrace.h:13,
from /usr/src/linux-headers-4.9.0-2-common/include/linux/kprobes.h:42,
from /usr/share/systemtap/runtime/linux/runtime.h:21,
from /usr/share/systemtap/runtime/runtime.h:24,
from /tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.c:25:
/usr/src/linux-headers-4.9.0-2-common/include/linux/mm.h:1298:6: note: declared here
long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
/usr/src/linux-headers-4.9.0-2-common/scripts/Makefile.build:298: recipe for target '/tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.o' failed
make[3]: *** [/tmp/stapfOCBtp/stap_a95e2c68fff3177d6a69bf2b0912f972_1531_src.o] Error 1
/usr/src/linux-headers-4.9.0-2-common/Makefile:1507: recipe for target '_module_/tmp/stapfOCBtp' failed
make[2]: *** [_module_/tmp/stapfOCBtp] Error 2
Makefile:150: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:8: recipe for target 'all' failed
make: *** [all] 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.
15:00 ♒♒♒ ☹ => 1
These issues are all fixed in the 3.1 release of systemtap, currently
accessible through Debian Experimental.
rrs@chutzpah:/var/tmp/Debian-Build/Result$ stap -e 'probe vfs.read {printf("read performed\n"); exit()}'
read performed
15:10 ♒♒♒ ☺
rrs@chutzpah:/var/tmp/Debian-Build/Result$ dpkg -l | grep systemtap
ii systemtap 3.1-2 amd64 instrumentation system for Linux
ii systemtap-common 3.1-2 all instrumentation system for Linux (common component)
ii systemtap-doc 3.1-2 all documentation and examples for SystemTap
ii systemtap-runtime 3.1-2 amd64 instrumentation system for Linux (runtime component)
15:10 ♒♒♒ ☺
This bug report is in regard to asking for an exception for systemtap,
to allow a new release, at this time during freeze.
Please let me know, in this bug report, if it is okay. And accordingly,
then, I will push it to the Unstable archive.
-- System Information:
Debian Release: 9.0
APT prefers unstable-debug
APT policy: (990, 'unstable-debug'), (990, 'testing-debug'), (990, 'unstable'), (990, 'testing'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.10.1+ (SMP w/4 CPU cores)
Locale: LANG=en_IN.utf8, LC_CTYPE=en_IN.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
--- End Message ---