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Date: Wed, 04 Jan 2012 08:54:00 -0000
From: Adrien Kunysz <adrien@kunysz.be>
To: Laris Benkis <laris@tpn.cc>
Cc: systemtap@sourceware.org
Subject: Re: probe process.function on libc not working
Message-ID: <20120104085702.GA7427@chouffe>
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On Wed, Jan 04, 2012 at 12:22:53AM -0500, Laris Benkis wrote:
> I tried probing libc again with the latest snapshot and still get the
> same failure.  Any suggestions?  Thanks
>=20
> Laris
>=20
> [laris@zilonis bin]$ ./stap --ver
> Systemtap translator/driver (version 1.7/0.152 non-git sources)
> Copyright (C) 2005-2011 Red Hat, Inc. and others
> This is free software; see the source for copying conditions.
> enabled features: TR1_UNORDERED_MAP NLS
> [laris@zilonis bin]$
>=20
> [laris@zilonis bin]$ sudo ./stap -e 'probe
> process("/lib/libc-2.14.90.so").function("*").call
> {println(probefunc()." ".$$parms$)}' -c 'ls -l'
> __sigprocmask how=3D2 set=3D{.__val=3D[...]} oset=3D{.__val=3D[...]}
> execvp file=3D"ls" argv=3D"=EF=BF=BD=EF=BF=BD=EF=BF=BD"
> __execvpe file=3D"ls" argv=3D"=EF=BF=BD=EF=BF=BD=EF=BF=BD" envp=3D"=EF=BF=
=BD=EF=BF=BD)=EF=BF=BD=EF=BF=BDi=EF=BF=BD=EF=BF=BD~=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=EF=BF=BD=EF=BF=BD=20=
=20=20=20=20
> =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD"
> getenv name=3D"PATH"
> __strncmp_ia32 s1=3D"TH=3D/sbin:/bin:/usr/sbin:/usr/bin" s2=3D"TH" n=3D2
> __execve file=3D"/sbin/ls" argv=3D"=EF=BF=BD=EF=BF=BD=EF=BF=BD" envp=3D"=
=EF=BF=BD=EF=BF=BD)=EF=BF=BD=EF=BF=BDi=EF=BF=BD=EF=BF=BD~=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=EF=BF=BD=EF=BF=
=BD
> =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD"
> __execve file=3D"/bin/ls" argv=3D"=EF=BF=BD=EF=BF=BD=EF=BF=BD" envp=3D"=
=EF=BF=BD=EF=BF=BD)=EF=BF=BD=EF=BF=BDi=EF=BF=BD=EF=BF=BD~=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=D9=BF=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=20
> =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD"
> strstr_ifunc
> __init_cpu_features
> __new_getrlimit e=3D3 rlimits=3D{.rlim_cur=3D134512692, .rlim_max=3D32199=
11679}
> __sysconf name=3D30
> __getpagesize
> __libc_dl_error_tsd
> Warning: child process exited with signal 11 (Segmentation fault)

What does the backtrace, the EIP and the code around the EIP in that
core look like?

> WARNING: /home/laris/systemtap-1.7-19981/bin/staprun exited with status: 1
> Pass 5: run failed.  Try again with another '--vp 00001' option.
>=20
>=20
> On 22/12/2011 6:27 PM, Laris Benkis wrote:
> > I'm having trouble tracing into libc. Here's the reader's digest version
> > and stap-report. Attached is the -DDEBUG_UPROBES output. Any ideas where
> > the problem lies? Thanks
> >
> > Laris
> >
> >
> > stap -e 'probe process("/lib/libc-2.14.90.so").function("*").call
> > {println(probefunc()." ".$$parms$)}' -c 'ls -l'
> > Warning: child process exited with signal 11 (Segmentation fault)
> > __sigprocmask how=3D2 set=3D{.__val=3D[...]} oset=3D{.__val=3D[...]}
> > execvp file=3D"ls" argv=3D"h=EF=BF=BD!=EF=BF=BD=EF=BF=BD!"
> > __execvpe file=3D"ls" argv=3D"h=EF=BF=BD!=EF=BF=BD=EF=BF=BD!" envp=3D"c=
=EF=BF=BD=EF=BF=BD=EF=BF=BDv=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=CB=87=EF=BF=BD=EF=BF=BD=E6=87=95
> > =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BDX=EF=BF=BD=EF=BF=BD=EF=BF=BDm=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=C9=8E=EF=BF=BD=EF=BF=BD=E8=8E=
=95=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD"=EF=BF=BD=EF=BF=BD=EF=BF=BDV=EF=BF=BD=EF=BF=BD=EF=BF=
=BDy=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=CE=8F=EF=BF=BD=EF=BF=BD"
> > getenv name=3D"PATH"
> > __strncmp_ia32 s1=3D"TH=3D/usr/local/bin:/bin:/usr/bin" s2=3D"TH" n=3D2
> > __execve file=3D"/usr/local/bin/ls" argv=3D"h=EF=BF=BD!=EF=BF=BD=EF=BF=
=BD!"
> > envp=3D"c=EF=BF=BD=EF=BF=BD=EF=BF=BDv=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=CB=87=EF=BF=BD=EF=BF=BD=E6=87=95=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BDX=EF=BF=BD=EF=BF=BD=EF=BF=BDm=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=C9=8E=EF=BF=BD=EF=BF=
=BD=E8=8E=95=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD
> > =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD"=EF=BF=BD=EF=BF=
=BD=EF=BF=BDV=EF=BF=BD=EF=BF=BD=EF=BF=BDy=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=CE=8F=EF=
=BF=BD=EF=BF=BD"
> > __execve file=3D"/bin/ls" argv=3D"h=EF=BF=BD!=EF=BF=BD=EF=BF=BD!" envp=
=3D"c=EF=BF=BD=EF=BF=BD=EF=BF=BDv=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=CB=87=EF=BF=BD=EF=BF=BD=E6=87=95
> > =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BDX=EF=BF=BD=EF=BF=BD=EF=BF=BDm=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=C9=8E=EF=BF=BD=EF=BF=BD=E8=8E=
=95 =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD"=EF=BF=BD=EF=BF=BD=EF=BF=BDV=EF=BF=BD=EF=BF=BD=EF=BF=
=BDy=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=CE=8F=EF=BF=BD=EF=BF=BD"
> > strstr_ifunc
> > __init_cpu_features
> > __new_getrlimit e=3D3 rlimits=3D{.rlim_cur=3D134512692, .rlim_max=3D321=
9911679}
> > __sysconf name=3D30
> > __getpagesize
> > __libc_dl_error_tsd
> > Warning: /usr/bin/staprun exited with status: 1
> > Pass 5: run failed. Try again with another '--vp 00001' option.
> >
> >
> > [laris@zilonis ~]$ cat stap-report.txt
> > =3D=3D stap -V =3D=3D
> > Systemtap translator/driver (version 1.6/0.152 non-git sources)
> > Copyright (C) 2005-2011 Red Hat, Inc. and others
> > This is free software; see the source for copying conditions.
> > enabled features: AVAHI LIBRPM LIBSQLITE3 NSS BOOST_SHARED_PTR
> > TR1_UNORDERED_MAP NLS
> > =3D=3D which stap =3D=3D
> > /usr/bin/stap
> > =3D=3D locate --regex '/stap(run)?$' | xargs ls -ald =3D=3D
> > drwxrwxr-x. 2 laris laris 4096 Dec 19 00:13 /home/laris/stap
> > -rwxr-xr-x. 1 root root 1920576 Jul 25 19:24 /usr/bin/stap
> > ---s--x---. 1 root stapusr 145408 Jul 25 19:24 /usr/bin/staprun
> > =3D=3D printenv | egrep
> > '^PATH=3D|^LD_LIBRARY_PATH=3D|^SYSTEMTAP_.*=3D|^XDG_DATA.*=3D' =3D=3D
> > PATH=3D/usr/local/bin:/bin:/usr/bin
> > =3D=3D stap -vv -p4 -e 'probe begin {exit()}' =3D=3D
> > Systemtap translator/driver (version 1.6/0.152 non-git sources)
> > Copyright (C) 2005-2011 Red Hat, Inc. and others
> > This is free software; see the source for copying conditions.
> > enabled features: AVAHI LIBRPM LIBSQLITE3 NSS BOOST_SHARED_PTR
> > TR1_UNORDERED_MAP NLS
> > Created temporary directory "/tmp/stapkSniqm"
> > Session arch: i386 release: 3.1.5-6.fc16.i686
> > Searched: " /usr/share/systemtap/tapset/i386/*.stp ", found: 4, process=
ed: 4
> > Searched: " /usr/share/systemtap/tapset/*.stp ", found: 73, processed: =
73
> > Pass 1: parsed user script and 77 library script(s) using
> > 25224virt/13832res/2544shr kb, in 230usr/10sys/242real ms.
> > Pass 2: analyzed script: 1 probe(s), 1 function(s), 0 embed(s), 0
> > global(s) using 25488virt/14096res/2576shr kb, in 10usr/0sys/6real ms.
> > /root/.systemtap/cache/e6/stap_e64e86c5872c37ebad9b5294ecbcc322_635.ko
> > Pass 3: using cached
> > /root/.systemtap/cache/e6/stap_e64e86c5872c37ebad9b5294ecbcc322_635.c
> > Pass 4: using cached
> > /root/.systemtap/cache/e6/stap_e64e86c5872c37ebad9b5294ecbcc322_635.ko
> > Running rm -rf /tmp/stapkSniqm
> > Spawn waitpid result (0x0): 0
> > =3D=3D gcc -v =3D=3D
> > Using built-in specs.
> > COLLECT_GCC=3Dgcc
> > COLLECT_LTO_WRAPPER=3D/usr/libexec/gcc/i686-redhat-linux/4.6.2/lto-wrap=
per
> > Target: i686-redhat-linux
> > Configured with: ../configure --prefix=3D/usr --mandir=3D/usr/share/man
> > --infodir=3D/usr/share/info
> > --with-bugurl=3Dhttp://bugzilla.redhat.com/bugzilla --enable-bootstrap
> > --enable-shared --enable-threads=3Dposix --enable-checking=3Drelease
> > --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
> > --enable-gnu-unique-object --enable-linker-build-id
> > --enable-languages=3Dc,c++,objc,obj-c++,java,fortran,ada,go,lto
> > --enable-plugin --enable-java-awt=3Dgtk --disable-dssi
> > --with-java-home=3D/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
> > --enable-libgcj-multifile --enable-java-maintainer-mode
> > --with-ecj-jar=3D/usr/share/java/eclipse-ecj.jar
> > --disable-libjava-multilib --with-ppl --with-cloog --with-tune=3Dgeneric
> > --with-arch=3Di686 --build=3Di686-redhat-linux
> > Thread model: posix
> > gcc version 4.6.2 20111027 (Red Hat 4.6.2-1) (GCC)
> > =3D=3D uname -a =3D=3D
> > Linux zilonis.tpn.cc 3.1.5-6.fc16.i686 #1 SMP Thu Dec 15 16:26:31 UTC
> > 2011 i686 i686 i386 GNU/Linux
> > =3D=3D dmesg | egrep 'stap|systemtap' | tail -n 10 =3D=3D
> > [349734.047152] stap_f00a6908ee1cf38c730f35e4569a3012_20037: systemtap:
> > 1.6/0.152, base: fbf05000, memory: 104data/42text/1ctx/10net/18alloc kb,
> > probes: 39
> > [349761.966717] stap_8a7ca24af256d26b2a544c59cd3590f_20261: systemtap:
> > 1.6/0.152, base: fc195000, memory: 100data/24text/2ctx/10net/19alloc kb,
> > probes: 39
> > [349787.431056] stap_a89fd8b79597df06e2aed3bbbbb8a308_20489: systemtap:
> > 1.6/0.152, base: fc443000, memory: 105data/47text/3ctx/10net/20alloc kb,
> > probes: 39
> > [349815.645926] stap_6197efb33bfc2032bb21e6c46a3fd5e3_20715: systemtap:
> > 1.6/0.152, base: fc72c000, memory: 107data/73text/42ctx/10net/59alloc
> > kb, probes: 39
> > [349832.533574] stap_a89fd8b79597df06e2aed3bbbbb8a308_20724: systemtap:
> > 1.6/0.152, base: fc9e8000, memory: 105data/47text/3ctx/10net/20alloc kb,
> > probes: 39
> > [349836.930973] stap_6197efb33bfc2032bb21e6c46a3fd5e3_20733: systemtap:
> > 1.6/0.152, base: fccd1000, memory: 107data/73text/42ctx/10net/59alloc
> > kb, probes: 39
> > [349900.457026] stap_6197efb33bfc2032bb21e6c46a3fd5e3_20742: systemtap:
> > 1.6/0.152, base: fcfc1000, memory: 107data/73text/42ctx/10net/59alloc
> > kb, probes: 39
> > [350400.204798] stap_331043668b61ef0f698e2b8ea4e4c62b_1_21761:
> > systemtap: 1.6/0.152, base: fd472000, memory:
> > 1482data/24text/2ctx/10net/19alloc kb, probes: 4964
> > [350418.223413] stap_331043668b61ef0f698e2b8ea4e4c62b_1_21999:
> > systemtap: 1.6/0.152, base: f9666000, memory:
> > 1482data/24text/2ctx/10net/19alloc kb, probes: 4964
> > [353883.302456] stap_258a75f82f7dd5d0c2303a96a3e47fda_2_22494:
> > systemtap: 1.6/0.152, base: fa4bb000, memory:
> > 1349data/1582text/46ctx/10net/63alloc kb, probes: 2628
> > =3D=3D cat /proc/cpuinfo | egrep 'processor|vendor_id|model name' =3D=3D
> > processor : 0
> > vendor_id : GenuineIntel
> > model name : Intel(R) Pentium(R) D CPU 3.20GHz
> > processor : 1
> > vendor_id : GenuineIntel
> > model name : Intel(R) Pentium(R) D CPU 3.20GHz
> > =3D=3D rpm -qa --qf '%{name}-%{version} %{release}.%{arch}\n' | egrep
> > 'systemtap|elfutils|kernel|gcc' | sort =3D=3D
> > abrt-addon-kerneloops-2.0.7 2.fc16.i686
> > elfutils-0.152 1.fc16.i686
> > elfutils-libelf-0.152 1.fc16.i686
> > elfutils-libs-0.152 1.fc16.i686
> > gcc-4.6.2 1.fc16.i686
> > gcc-c++-4.6.2 1.fc16.i686
> > kernel-3.1.0 7.fc16.i686
> > kernel-3.1.5 6.fc16.i686
> > kernel-debuginfo-3.1.5 6.fc16.i686
> > kernel-debuginfo-common-i686-3.1.5 6.fc16.i686
> > kernel-devel-3.1.5 6.fc16.i686
> > kernel-headers-3.1.5 6.fc16.i686
> > libgcc-4.6.2 1.fc16.i686
> > libreport-plugin-kerneloops-2.0.8 3.fc16.i686
> > systemtap-1.6 1.fc16.i686
> > systemtap-runtime-1.6 1.fc16.i686
> > systemtap-sdt-devel-1.6 1.fc16.i686
> > =3D=3D egrep 'PROBE|TRACE|MARKER|_DEBUG_'
> > /lib/modules/3.1.5-6.fc16.i686/build/.config | grep -v not.set | sort |
> > fmt -w 80 =3D=3D
> > CONFIG_AIC79XX_DEBUG_MASK=3D0 CONFIG_AIC7XXX_DEBUG_MASK=3D0
> > CONFIG_ARCH_CPU_PROBE_RELEASE=3Dy CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=
=3Dy
> > CONFIG_BLK_DEV_IO_TRACE=3Dy CONFIG_CAN_PM_TRACE=3Dy
> > CONFIG_CB710_DEBUG_ASSUMPTIONS=3Dy CONFIG_CONTEXT_SWITCH_TRACER=3Dy
> > CONFIG_DEBUG_BOOT_PARAMS=3Dy CONFIG_DEBUG_BUGVERBOSE=3Dy CONFIG_DEBUG_D=
EVRES=3Dy
> > CONFIG_DEBUG_FS=3Dy CONFIG_DEBUG_HIGHMEM=3Dy CONFIG_DEBUG_INFO=3Dy
> > CONFIG_DEBUG_KERNEL=3Dy CONFIG_DEBUG_LIST=3Dy CONFIG_DEBUG_MEMORY_INIT=
=3Dy
> > CONFIG_DEBUG_NX_TEST=3Dm CONFIG_DEBUG_RODATA_TEST=3Dy CONFIG_DEBUG_RODA=
TA=3Dy
> > CONFIG_DEBUG_SHIRQ=3Dy CONFIG_DEBUG_STACKOVERFLOW=3Dy CONFIG_DYNAMIC_FT=
RACE=3Dy
> > CONFIG_FTRACE_MCOUNT_RECORD=3Dy CONFIG_FTRACE_NMI_ENTER=3Dy
> > CONFIG_FTRACE_SYSCALLS=3Dy CONFIG_FTRACE=3Dy CONFIG_FUNCTION_TRACER=3Dy
> > CONFIG_GENERIC_IRQ_PROBE=3Dy CONFIG_GENERIC_TRACER=3Dy
> > CONFIG_HAVE_ARCH_TRACEHOOK=3Dy CONFIG_HAVE_DYNAMIC_FTRACE=3Dy
> > CONFIG_HAVE_FTRACE_MCOUNT_RECORD=3Dy CONFIG_HAVE_FTRACE_NMI_ENTER=3Dy
> > CONFIG_HAVE_FUNCTION_GRAPH_TRACER=3Dy CONFIG_HAVE_FUNCTION_TRACE_MCOUNT=
_TEST=3Dy
> > CONFIG_HAVE_FUNCTION_TRACER=3Dy CONFIG_HAVE_KPROBES=3Dy CONFIG_HAVE_KRE=
TPROBES=3Dy
> > CONFIG_HAVE_MMIOTRACE_SUPPORT=3Dy CONFIG_HAVE_OPTPROBES=3Dy
> > CONFIG_HAVE_SYSCALL_TRACEPOINTS=3Dy CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=
=3Dy
> > CONFIG_KEYS_DEBUG_PROC_KEYS=3Dy CONFIG_KPROBE_EVENT=3Dy CONFIG_KPROBES=
=3Dy
> > CONFIG_KRETPROBES=3Dy CONFIG_MTD_GEN_PROBE=3Dm CONFIG_MTD_JEDECPROBE=3Dm
> > CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=3D0 CONFIG_MTD_QINFO_PROBE=3Dm
> > CONFIG_NET_DCCPPROBE=3Dm CONFIG_NETFILTER_XT_TARGET_TRACE=3Dm
> > CONFIG_NET_SCTPPROBE=3Dm CONFIG_NOP_TRACER=3Dy CONFIG_OPTPROBES=3Dy
> > CONFIG_PCMCIA_PROBE=3Dy CONFIG_PM_TRACE_RTC=3Dy CONFIG_PM_TRACE=3Dy
> > CONFIG_SCHED_TRACER=3Dy CONFIG_STACK_TRACER=3Dy CONFIG_STACKTRACE_SUPPO=
RT=3Dy
> > CONFIG_STACKTRACE=3Dy CONFIG_TRACE_IRQFLAGS_SUPPORT=3Dy CONFIG_TRACEPOI=
NTS=3Dy
> > CONFIG_TRACER_MAX_TRACE=3Dy CONFIG_USER_STACKTRACE_SUPPORT=3Dy CONFIG_U=
TRACE=3Dy
> > CONFIG_WIMAX_DEBUG_LEVEL=3D8 CONFIG_WIMAX_I2400M_DEBUG_LEVEL=3D8
> > =3D=3D find /debugfs /proc /sys /dev -name '*kprobes*' 2>/dev/null | xa=
rgs
> > grep . =3D=3D
> > /proc/sys/debug/kprobes-optimization:1
> >
> >
> >
> >
> >

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