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[Bug kprobes/4039] New: system drops to xmon on executing systemtap-20070210 tests
- From: "srinivasa at in dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 14 Feb 2007 08:59:13 -0000
- Subject: [Bug kprobes/4039] New: system drops to xmon on executing systemtap-20070210 tests
- Reply-to: sourceware-bugzilla at sourceware dot org
My environment is RHEL5-RC (kernel 2.6.18-8el5), elfutils
(elfutils-0.124.tar.gz) systemtap(systemtap-20070210.tar.bz2) on p570 lpar system.
I was running systemtap(systemtap-20070210.tar.bz2) tests and system dropped to
xmon.
Screen looks like this.
================================
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.stress/whitelist.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/isinstr.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/strlen.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/strtol.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/substr.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/text_str.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.string/tokenize.exp
...
Running
/home/systemtap/tmp/stap_testing_200702140648/src/testsuite/systemtap.syscall/syscall.exp
...
FAIL: alarm
FAIL: clock
FAIL: mmap
FAIL: readwrite
FAIL: signal
FAIL: stat
FAIL: statfs
FAIL: 32-bit alarm
FAIL: 32-bit clock
FAIL: 32-bit mmap
FAIL: 32-bit readwrite
FAIL: 32-bit signal
FAIL: 32-bit stat
FAIL: 32-bit statfs
//System crashed///
=================================================
0:mon> e
cpu 0x0: Vector: d00 (Single Step) at [c0000000778bfbb0]
pc: d000000000040434
lr: c000000000029918: .kretprobe_trampoline_holder+0x0/0x8
sp: c0000000778bfe30
msr: 8000000040109032
current = 0xc000000029c99ce0
paca = 0xc000000000464300
pid = 24713, comm = sh
0:mon> r
R00 = c000000000029918 R16 = 0000000000000000
R01 = c0000000778bfe30 R17 = 0000000000000000
R02 = c000000000579660 R18 = 0000000000000000
R03 = 00000000101118e0 R19 = 0000000000000000
R04 = 00000000ff60f5d8 R20 = 00000000100d65d0
R05 = 00000000ff60f5d8 R21 = 000000000000003d
R06 = 000000000ffb18b8 R22 = 0000000000000001
R07 = 0000000000000004 R23 = 00000000100e0000
R08 = 00000000101118d8 R24 = 00000000100e0000
R09 = c0000000778bfea0 R25 = 00000000ff60f690
R10 = c0000000000ee604 R26 = 00000000ff60f690
R11 = c0000000000112c8 R27 = 00000000101118e0
R12 = 000000000fd8def7 R28 = 00000000ff60fc78
R13 = c000000000464300 R29 = 0000000000000024
R14 = 0000000000000000 R30 = 000000000ffafff4
R15 = 0000000000000000 R31 = 00000000101118d0
pc = d000000000040434
lr = c000000000029918 .kretprobe_trampoline_holder+0x0/0x8
msr = 8000000040109032 cr = 42000422
ctr = c0000000000ee604 xer = 0000000000000000 trap = d00
0:mon> t
[link register ] c000000000029918 .kretprobe_trampoline_holder+0x0/0x8
[c0000000778bfe30] c00000000000875c syscall_dotrace+0xc/0x38 (unreliable)
--- Exception: c00 (System Call) at 000000000ff18b64
SP (ff60f5a0) is in userspace
0:mon> di d000000000040434
d000000000040434 7c0802a6 mflr r0
...
d000000000040450 7c852378 mr r5,r4
d000000000040454 7c0802a6 mflr r0
...
=========================================
Thanks
Srinivasa DS
--
Summary: system drops to xmon on executing systemtap-20070210
tests
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: kprobes
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: srinivasa at in dot ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=4039
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