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[Bug runtime/17274] New: prologues.exp, the beaker killer
- From: "mcermak at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Fri, 15 Aug 2014 11:33:12 +0000
- Subject: [Bug runtime/17274] New: prologues.exp, the beaker killer
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=17274
Bug ID: 17274
Summary: prologues.exp, the beaker killer
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: mcermak at redhat dot com
Beaker is opensource (https://beaker-project.org/). In the Beaker environment,
systemtap.base/prologues.exp causes the testsuite termination if run on RHEL6
or F20 (on RHEL7 this doesn't happen). However, this only happens when the
testsuite is automatically scheduled by beaker scheduler. Running prologues.exp
by hand (even on a beaker box) doesn't seem to reproduce the issue.
The prologues.exp calls stap_run() which, on line 63, calls "kill -INT
-[exp_pid]" (commit 5a2e1a2b). This (possibly indirectly) causes "*** buffer
overflow detected ***: expect terminated" which in Beaker results in the
testsuite run termination. This happens on *all* architectures and quite
reliably. Following is an example acquired by running ba0e072 stap bits on
RHEL6/x86_64:
-----------------------------8<----------------------------------
Running ./systemtap.base/procfs_write.exp ...
Executing: kill -INT -26759
*** buffer overflow detected ***: expect terminated
======= Backtrace: =========
/lib64/libc.so.6(__fortify_fail+0x37)[0x7f9049a2c987]
/lib64/libc.so.6(+0x100870)[0x7f9049a2a870]
/lib64/libc.so.6(+0xffcc9)[0x7f9049a29cc9]
/lib64/libc.so.6(_IO_default_xsputn+0xc9)[0x7f904999e929]
/lib64/libc.so.6(_IO_vfprintf+0x41c0)[0x7f9049972480]
/lib64/libc.so.6(__vsprintf_chk+0x9d)[0x7f9049a29d6d]
/usr/lib64/libexpect5.44.1.15.so(expDiagLog+0xe3)[0x7f904a488213]
/usr/lib64/libexpect5.44.1.15.so(+0x10dfb)[0x7f904a47fdfb]
/usr/lib64/libexpect5.44.1.15.so(Exp_ExpectObjCmd+0x108)[0x7f904a482358]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libexpect5.44.1.15.so(expMatchProcess+0x2f7)[0x7f904a481137]
/usr/lib64/libexpect5.44.1.15.so(Exp_ExpectObjCmd+0x590)[0x7f904a4827e0]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(TclObjInterpProcCore+0x147)[0x7f904a207187]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x3752f)[0x7f904a17d52f]
/usr/lib64/libtcl8.5.so(Tcl_FSEvalFileEx+0x241)[0x7f904a1e9e61]
/usr/lib64/libtcl8.5.so(+0x4eadb)[0x7f904a194adb]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x3752f)[0x7f904a17d52f]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x3af)[0x7f904a17e30f]
/usr/lib64/libtcl8.5.so(+0xc1d34)[0x7f904a207d34]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(+0x80ac6)[0x7f904a1c6ac6]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libtcl8.5.so(+0x49923)[0x7f904a18f923]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(TclObjInterpProcCore+0x147)[0x7f904a207187]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libtcl8.5.so(+0x40a4a)[0x7f904a186a4a]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libtcl8.5.so(+0x40a4a)[0x7f904a186a4a]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libtcl8.5.so(+0x40a4a)[0x7f904a186a4a]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x800fd)[0x7f904a1c60fd]
/usr/lib64/libtcl8.5.so(+0x877a9)[0x7f904a1cd7a9]
/usr/lib64/libtcl8.5.so(TclEvalObjEx+0x196)[0x7f904a17e0f6]
/usr/lib64/libtcl8.5.so(+0x40a4a)[0x7f904a186a4a]
/usr/lib64/libtcl8.5.so(+0x36a63)[0x7f904a17ca63]
/usr/lib64/libtcl8.5.so(+0x3752f)[0x7f904a17d52f]
/usr/lib64/libtcl8.5.so(Tcl_FSEvalFileEx+0x241)[0x7f904a1e9e61]
/usr/lib64/libtcl8.5.so(Tcl_EvalFile+0x2f)[0x7f904a1e9f9f]
/usr/lib64/libexpect5.44.1.15.so(exp_interpret_cmdfilename+0x4b)[0x7f904a488dfb]
expect(main+0xea)[0x400d6a]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x7f9049948d1d]
======= Memory map: ========
00400000-00401000 r-xp 00000000 fd:00 1187410
/usr/bin/expect
00601000-00602000 rw-p 00001000 fd:00 1187410
/usr/bin/expect
024e4000-02f96000 rw-p 00000000 00:00 0 [heap]
7f9048ee3000-7f9048ef9000 r-xp 00000000 fd:00 524290
/lib64/libgcc_s-4.4.7-20120601.so.1
7f9048ef9000-7f90490f8000 ---p 00016000 fd:00 524290
/lib64/libgcc_s-4.4.7-20120601.so.1
7f90490f8000-7f90490f9000 rw-p 00015000 fd:00 524290
/lib64/libgcc_s-4.4.7-20120601.so.1
7f90490f9000-7f904910f000 r-xp 00000000 fd:00 524328
/lib64/libresolv-2.12.so
7f904910f000-7f904930f000 ---p 00016000 fd:00 524328
/lib64/libresolv-2.12.so
7f904930f000-7f9049310000 r--p 00016000 fd:00 524328
/lib64/libresolv-2.12.so
7f9049310000-7f9049311000 rw-p 00017000 fd:00 524328
/lib64/libresolv-2.12.so
7f9049311000-7f9049313000 rw-p 00000000 00:00 0
7f9049313000-7f9049318000 r-xp 00000000 fd:00 524316
/lib64/libnss_dns-2.12.so
7f9049318000-7f9049517000 ---p 00005000 fd:00 524316
/lib64/libnss_dns-2.12.so
7f9049517000-7f9049518000 r--p 00004000 fd:00 524316
/lib64/libnss_dns-2.12.so
7f9049518000-7f9049519000 rw-p 00005000 fd:00 524316
/lib64/libnss_dns-2.12.so
7f9049519000-7f9049525000 r-xp 00000000 fd:00 524318
/lib64/libnss_files-2.12.so
7f9049525000-7f9049725000 ---p 0000c000 fd:00 524318
/lib64/libnss_files-2.12.so
7f9049725000-7f9049726000 r--p 0000c000 fd:00 524318
/lib64/libnss_files-2.12.so
7f9049726000-7f9049727000 rw-p 0000d000 fd:00 524318
/lib64/libnss_files-2.12.so
7f9049727000-7f9049729000 r-xp 00000000 fd:00 524334
/lib64/libutil-2.12.so
7f9049729000-7f9049928000 ---p 00002000 fd:00 524334
/lib64/libutil-2.12.so
7f9049928000-7f9049929000 r--p 00001000 fd:00 524334
/lib64/libutil-2.12.so
7f9049929000-7f904992a000 rw-p 00002000 fd:00 524334
/lib64/libutil-2.12.so
7f904992a000-7f9049ab5000 r-xp 00000000 fd:00 524302
/lib64/libc-2.12.so
7f9049ab5000-7f9049cb4000 ---p 0018b000 fd:00 524302
/lib64/libc-2.12.so
7f9049cb4000-7f9049cb8000 r--p 0018a000 fd:00 524302
/lib64/libc-2.12.so
7f9049cb8000-7f9049cb9000 rw-p 0018e000 fd:00 524302
/lib64/libc-2.12.so
7f9049cb9000-7f9049cbe000 rw-p 00000000 00:00 0
7f9049cbe000-7f9049d41000 r-xp 00000000 fd:00 524310
/lib64/libm-2.12.so
7f9049d41000-7f9049f40000 ---p 00083000 fd:00 524310
/lib64/libm-2.12.so
7f9049f40000-7f9049f41000 r--p 00082000 fd:00 524310
/lib64/libm-2.12.so
7f9049f41000-7f9049f42000 rw-p 00083000 fd:00 524310
/lib64/libm-2.12.so
7f9049f42000-7f9049f44000 r-xp 00000000 fd:00 524308
/lib64/libdl-2.12.so
7f9049f44000-7f904a144000 ---p 00002000 fd:00 524308
/lib64/libdl-2.12.so
7f904a144000-7f904a145000 r--p 00002000 fd:00 524308
/lib64/libdl-2.12.so
7f904a145000-7f904a146000 rw-p 00003000 fd:00 524308
/lib64/libdl-2.12.so
7f904a146000-7f904a25f000 r-xp 00000000 fd:00 1187135
/usr/lib64/libtcl8.5.so
7f904a25f000-7f904a45f000 ---p 00119000 fd:00 1187135
/usr/lib64/libtcl8.5.so
7f904a45f000-7f904a46f000 rw-p 00119000 fd:00 1187135
/usr/lib64/libtcl8.5.so
7f904a46f000-7f904a49c000 r-xp 00000000 fd:00 1187424
/usr/lib64/libexpect5.44.1.15.so
7f904a49c000-7f904a69c000 ---p 0002d000 fd:00 1187424
/usr/lib64/libexpect5.44.1.15.so
7f904a69c000-7f904a69e000 rw-p 0002d000 fd:00 1187424
/usr/lib64/libexpect5.44.1.15.so
7f904a69e000-7f904a6a2000 rw-p 00000000 00:00 0
7f904a6a2000-7f904a6c2000 r-xp 00000000 fd:00 524295
/lib64/ld-2.12.so
7f904a8ab000-7f904a8b0000 rw-p 00000000 00:00 0
7f904a8bf000-7f904a8c1000 rw-p 00000000 00:00 0
7f904a8c1000-7f904a8c2000 r--p 0001f000 fd:00 524295
/lib64/ld-2.12.so
7f904a8c2000-7f904a8c3000 rw-p 00020000 fd:00 524295
/lib64/ld-2.12.so
7f904a8c3000-7f904a8c4000 rw-p 00000000 00:00 0
7fff9c520000-7fff9c55b000 rw-p 00000000 00:00 0
[stack]
7fff9c5ff000-7fff9c600000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
./execrc: line 4: 16359 Aborted (core dumped) runtest --tool
systemtap --tool_opts '' --srcdir . --debug -v -v --tool_opts 'install '
make[2]: Leaving directory `/usr/share/systemtap/testsuite'
if test -n ""; then mail < systemtap.sum; fi
make[1]: Leaving directory `/usr/share/systemtap/testsuite'
:: [ PASS ] :: Running 'make RUNTESTFLAGS='--debug -v -v' installcheck
2>&1' (Expected 0, got 0)
-----------------------------8<----------------------------------
Aforementioned log snippet comes from the x86_64 TESTOUT.log within following
beaker run: https://url.corp.redhat.com/fd230c3.
Note that [exp_pid] refers to the stap process. When running the testcase by
hand, my exp_pid was 42612:
|-sshd(1117)-+-sshd(34005)---bash(34032)---make(42456)---make(42459)---sh(42460)---execrc(42495)---expect(42496)---stap(42612)---stapio(42835)-+-[{stapio}(42837){stapio}(42838)].
Could you, guys, please, have a look at this issue? So far I have no idea what
exactly happens here. This can possibly also be a Beaker issue.
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