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[Bug runtime/3911] New: Compilation of systemtap causes the system to crash on p570 system.


My environment is systemtap(systemtap-20070120.tar.bz2),
elfutils(elfutils-0.124.tar.gz), kernel(2.6.18-1.2961.el5), p570 lpared system.

I was compiling latest systemtap source on  rhel5(2.6.18-1.2961.el5) kernel and
system dropped to xmon.

Screen looks loke this 
==================================
FAIL: probefunc:kernel.statement(0xc00000000005be34) compilation
FAIL: probefunc:kernel.function("scheduler_tick") compilation
FAIL: probefunc:kernel.inline("context_switch") compilation
Running
/home/systemtap/tmp/stap_testing_200701240903/src/testsuite/systemtap.base/simple.exp
...
Running
/home/systemtap/tmp/stap_testing_200701240903/src/testsuite/systemtap.base/timeofday.exp
...
FAIL: timeofday test compilation
Running
/home/systemtap/tmp/stap_testing_200701240903/src/testsuite/systemtap.base/timers.exp
...
Running
/home/systemtap/tmp/stap_testing_200701240903/src/testsuite/systemtap.base/tri.exp
...
Running
/home/systemtap/tmp/stap_testing_200701240903/src/testsuite/systemtap.maps/absentstats.exp
...


/////System crashed/////
=========================================

What xmon shows 
=============================
Unable to handle kernel paging request for data at address 0x420000000007f


5:mon> e
cpu 0x5: Vector: 300 (Data Access) at [c000000028a6b310]
    pc: c000000000349f40: ._spin_lock+0x20/0x88
    lr: c0000000000d6640: .__cache_alloc_node+0x4c/0x174
    sp: c000000028a6b590
   msr: 8000000000001032
   dar: 420000000007f
 dsisr: 40000000
  current = 0xc00000002ad74430
  paca    = 0xc000000000464d00
    pid   = 15804, comm = staprun

5:mon> t
[c000000028a6b610] c0000000000d6640 .__cache_alloc_node+0x4c/0x174
[c000000028a6b6b0] c0000000000d6cc8 .kmem_cache_alloc_node+0x104/0x12c
[c000000028a6b750] d000000000aa6f18 ._stp_map_init+0xa0/0x150
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6b800] d000000000aa70d4 ._stp_pmap_new+0x10c/0x1f0
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6b8c0] d000000000aa7328 ._stp_pmap_new_ix+0x170/0x28c
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6b970] d000000000aa757c .systemtap_module_init+0x138/0x254
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6ba20] d000000000aa76a8 .probe_start+0x10/0x2c
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6baa0] d000000000aa7734 ._stp_handle_start+0x70/0x10c
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6bbb0] d000000000aa79b8 ._stp_proc_write_cmd+0x1e8/0x9b0
[stap_a0def33066a20a930648d1bcbf25f718_896]
[c000000028a6bcf0] c0000000000e026c .vfs_write+0x118/0x200
[c000000028a6bd90] c0000000000e09dc .sys_write+0x4c/0x8c
[c000000028a6be30] c00000000000869c syscall_exit+0x0/0x40
--- Exception: c00 (System Call) at 0000008072e9461c
SP (ffff86eee90) is in userspace


5:mon> di c000000000349f40   (PC value)
c000000000349f40  7d20f828      lwarx   r9,r0,r31
c000000000349f44  2c090000      cmpwi   r9,0
c000000000349f48  40820010      bne     c000000000349f58        #
._spin_lock+0x38/0x88
c000000000349f4c  7c00f92d      stwcx.  r0,r0,r31
c000000000349f50  40a2fff0      bne     c000000000349f40        #
._spin_lock+0x20/0x88



5:mon> r
R00 = 0000000080000005   R16 = 0000000010005b18
R01 = c000000028a6b590   R17 = 0000000010005b10
R02 = c000000000578f80   R18 = 00000ffff86ef390
R03 = 000420000000007f   R19 = 0000000010005b38
R04 = 00000000000012d0   R20 = 0000008072d50698
R05 = 0000000000000010   R21 = 0000000010005c28
R06 = 0000000000000030   R22 = 00000000100170c8
R07 = 0000000000000220   R23 = 0000000000000002
R08 = 0000000000000010   R24 = 0000000000000010
R09 = c00000002dfe2980   R25 = 0000000000000800
R10 = c000000000605448   R26 = 0000000000000010
R11 = 0000000000000000   R27 = c00000002dfe2900
R12 = d000000000aaa3f0   R28 = 8000000000009032
R13 = c000000000464d00   R29 = 00000000000012d0
R14 = 00000000100170c0   R30 = c0000000004a59b8
R15 = 0000000010005638   R31 = 000420000000007f
pc  = c000000000349f40 ._spin_lock+0x20/0x88
lr  = c0000000000d6640 .__cache_alloc_node+0x4c/0x174
msr = 8000000000001032   cr  = 24000444
ctr = c0000000000d6cf0   xer = 0000000020000000   trap =  300
dar = 000420000000007f   dsisr = 40000000



======================================

Thanks 
 Srinivasa Ds

-- 
           Summary: Compilation of systemtap causes the system to crash on
                    p570 system.
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: srinivasa at in dot ibm dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=3911

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