From: "pavan dot naregundi at in dot ibm dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug runtime/10812] New: 2.6.32-rc5: Vector: 300 (Data Access) with systemtap tests
Date: Tue, 20 Oct 2009 05:25:00 -0000 [thread overview]
Message-ID: <20091020052448.10812.pavan.naregundi@in.ibm.com> (raw)
While executing systemtap tests with this week snapshot saw the following
issue,
=================
0:mon> e
cpu 0x0: Vector: 300 (Data Access) at [c0000000fa7c3940]
pc: c00000000004998c: .memcmp+0x18/0x30
lr: d000000002785260: ._stp_ctl_write_cmd+0x250/0x840
[stap_3749988c31b9ae53b507a42e405bc1a8_575696]
sp: c0000000fa7c3bc0
msr: 8000000000009032
dar: d0000000015c2064
dsisr: 40000000
current = 0xc0000000f793db00
paca = 0xc000000001482600
pid = 29521, comm = stapio
0:mon> t
[link register ] d000000002785260 ._stp_ctl_write_cmd+0x250/0x840
[stap_3749988c31b9ae53b507a42e405bc1a8_575696]
[c0000000fa7c3bc0] d00000000278581c ._stp_ctl_write_cmd+0x80c/0x840
[stap_3749988c31b9ae53b507a42e405bc1a8_575696] (unreliable)
[c0000000fa7c3ce0] c0000000001ba72c .vfs_write+0xec/0x1f0
[c0000000fa7c3d80] c0000000001ba958 .SyS_write+0x58/0xb0
[c0000000fa7c3e30] c000000000008570 syscall_exit+0x0/0x40
--- Exception: c00 (System Call) at 00000fffb5fa66cc
SP (fffe757eff0) is in userspace
0:mon> r
R00 = 000000000000006b R16 = 0000000010017b78
R01 = c0000000fa7c3bc0 R17 = 00000fffe757f5b0
R02 = c000000001377d30 R18 = 0000000010008b18
R03 = 00000000000000ec R19 = 0000000010008770
R04 = d0000000015c2063 R20 = d0000000015b051c
R05 = 0000000000000014 R21 = d000000002787918
R06 = d0000000027a8938 R22 = 0000000000000014
R07 = 0000000000000048 R23 = d0000000015c2078
R08 = 000000000000005a R24 = d0000000027885e0
R09 = d0000000027bcf00 R25 = d0000000027876c8
R10 = 0000000000000001 R26 = d0000000027c3000
R11 = c000000000049974 R27 = c0000000fa7c3c40
R12 = d0000000027864b0 R28 = 0000000000000008
R13 = c000000001482600 R29 = d000000002838ba0
R14 = 0000000010009fe0 R30 = d0000000027f0038
R15 = 0000000010011af8 R31 = d0000000027e8ba0
pc = c00000000004998c .memcmp+0x18/0x30
lr = d000000002785260 ._stp_ctl_write_cmd+0x250/0x840
[stap_3749988c31b9ae53b507a42e405bc1a8_575696]
msr = 8000000000009032 cr = 44000444
ctr = 0000000000000014 xer = 0000000000000000 trap = 300
dar = d0000000015c2064 dsisr = 40000000
0:mon> di %pc
c00000000004998c 8c040001 lbzu r0,1(r4)
c000000000049990 7c601851 subf. r3,r0,r3
c000000000049994 4102fff4 bdnzt eq,c000000000049988 #
.memcmp+0x14/0x30
c000000000049998 4e800020 blr
c00000000004999c 38600000 li r3,0
c0000000000499a0 4e800020 blr
c0000000000499a4 2c050000 cmpwi r5,0
c0000000000499a8 4081001c ble c0000000000499c4 #
.memchr+0x20/0x28
c0000000000499ac 7ca903a6 mtctr r5
c0000000000499b0 3863ffff addi r3,r3,-1
c0000000000499b4 8c030001 lbzu r0,1(r3)
c0000000000499b8 7c002000 cmpw r0,r4
c0000000000499bc 4002fff8 bdnzf eq,c0000000000499b4 #
.memchr+0x10/0x28
c0000000000499c0 4d820020 beqlr
c0000000000499c4 38600000 li r3,0
c0000000000499c8 4e800020 blr
0:mon>
========================
--
Summary: 2.6.32-rc5: Vector: 300 (Data Access) with systemtap
tests
Product: systemtap
Version: unspecified
Status: NEW
Severity: critical
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: pavan dot naregundi at in dot ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=10812
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next reply other threads:[~2009-10-20 5:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-20 5:25 pavan dot naregundi at in dot ibm dot com [this message]
2009-10-20 5:34 ` [Bug runtime/10812] " pavan dot naregundi at in dot ibm dot com
2009-11-12 20:18 ` fche at redhat dot com
2010-01-22 9:20 ` pavan dot naregundi at in dot ibm dot com
2010-01-22 9:21 ` pavan dot naregundi at in dot ibm dot com
2010-01-24 14:22 ` fche at redhat dot com
2010-03-16 18:58 ` fche at redhat dot com
2010-09-29 17:00 ` fche at redhat dot com
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