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Posted to commits@harmony.apache.org by "Gregory Shimansky (JIRA)" <ji...@apache.org> on 2008/01/25 12:16:34 UTC
[jira] Commented: (HARMONY-5422) [drlvm][jit] intermittent VM crash
in api.zip.ZlibTest from the reliability suite
[ https://issues.apache.org/jira/browse/HARMONY-5422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12562443#action_12562443 ]
Gregory Shimansky commented on HARMONY-5422:
--------------------------------------------
I would try to disassemble earlier from RIP. Stepping back just 14 bytes is often not enough for disassembler to pick up correct instructions beginnings, so it can show bad instructions.
> [drlvm][jit] intermittent VM crash in api.zip.ZlibTest from the reliability suite
> ---------------------------------------------------------------------------------
>
> Key: HARMONY-5422
> URL: https://issues.apache.org/jira/browse/HARMONY-5422
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: Linux x86_64
> Reporter: Pavel Rebriy
>
> I've executed reliability ZlibTest on 614799 debug revision on Linux x86_64 platform.
> The result was an intermittent crash (1 crash from 20 runs) with the following diagnostic:
> $ i=1; res=104; while [ $res -eq 104 ]; do /nfs/ims/home/psrebriy/work/git-master/build/lnx_em64t_gcc_debug/deploy/jdk/jre/bin/java -classpath /nfs/ims/proj/drl/mrt2/users/psrebriy/bti2/build/checkouts/reliability/classes org.apache.harmony.test.reliability.share.ReliabilityTestStarter -testReliabilityMode longrunning -testTimeOut 1200 -testClassName org.apache.harmony.test.reliability.api.zip.ZlibTest 10 /nfs/ims/proj/drl/mrt2/users/psrebriy/bti2/tests/reliability/src/java/org/apache/harmony/test/reliability/api/zip/auxiliary 30000 Test.out 10 > out.Zlib.debug; res=$?; i=$((i+1)); echo --- $i ----; done
> Illegal instruction (core dumped)
> The native stacks are the following:
> 1:
> (gdb) where
> #0 0x00002aaabe2a8a78 in ?? ()
> #1 0xdeadbeefdeadbeef in ?? ()
> #2 0xdeadbeefdeadbeef in ?? ()
> #3 0xdeadbeefdeadbeef in ?? ()
> #4 0xdeadbeefdeadbeef in ?? ()
> #5 0xdeadbeefdeadbeef in ?? ()
> #6 0xdeadbeefdeadbeef in ?? ()
> #7 0xdeadbeefdeadbeef in ?? ()
> #8 0xdeadbeefdeadbeef in ?? ()
> #9 0x00000000deadbeef in ?? ()
> #10 0x0000000000000000 in ?? ()
> (gdb) x /20i $rip-14
> 0x2aaabe2a8a7a: in (%dx),%al
> 0x2aaabe2a8a7b: add %al,(%rax)
> 0x2aaabe2a8a7d: add %al,(%rax)
> 0x2aaabe2a8a7f: add %dl,0xffffffffc7909090(%rax)
> 0x2aaabe2a8a85: test %ebp,%esp
> 0x2aaabe2a8a87: std
> 0x2aaabe2a8a88: (bad) <<<<<<<<<<<<<<<<<<<<<<< Illegal instruction
> 0x2aaabe2a8a89: incl (%rax)
> 0x2aaabe2a8a8b: add %al,(%rax)
> 0x2aaabe2a8a8d: add %cl,0xffffffffffffff83(%rax)
> 0x2aaabe2a8a90: in (%dx),%al
> 0x2aaabe2a8a91: or %cl,0xffffffffffffffba(%rax)
> 0x2aaabe2a8a94: fsubrl 0x2aaaaab8(%rcx)
> 0x2aaabe2a8a9a: add %al,(%rax)
> 0x2aaabe2a8a9c: rex64 callq *%rdx
> 0x2aaabe2a8a9f: add $0x8,%rsp
> 0x2aaabe2a8aa3: cmpl $0x0,0x8(%rax)
> 0x2aaabe2a8aa7: je,pt 0x2aaabe2a8ac3
> 0x2aaabe2a8aae: sub $0x8,%rsp
> 0x2aaabe2a8ab2: mov $0x2aaaac63a800,%rsi
> 2:
> (gdb) where
> #0 0x00002aaabe2a8a78 in ?? ()
> #1 0xdeadbeefdeadbeef in ?? ()
> #2 0xdeadbeefdeadbeef in ?? ()
> #3 0xdeadbeefdeadbeef in ?? ()
> #4 0xdeadbeefdeadbeef in ?? ()
> #5 0xdeadbeefdeadbeef in ?? ()
> #6 0xdeadbeefdeadbeef in ?? ()
> #7 0xdeadbeefdeadbeef in ?? ()
> #8 0xdeadbeefdeadbeef in ?? ()
> #9 0x00000000deadbeef in ?? ()
> #10 0x0000000000000000 in ?? ()
> (gdb) x /20i 0x2aaabe2a8a6c
> 0x2aaabe2a8a6c: stos %al,%es:(%rdi)
> 0x2aaabe2a8a6d: sub (%rax),%al
> 0x2aaabe2a8a6f: add %dl,0xffffffffc7909090(%rax)
> 0x2aaabe2a8a75: test %ebp,%esp
> 0x2aaabe2a8a77: std
> 0x2aaabe2a8a78: (bad) <<<<<<<<<<<<<<<<<<<<<< Illegal instruction
> 0x2aaabe2a8a79: incl (%rax)
> 0x2aaabe2a8a7b: add %al,(%rax)
> 0x2aaabe2a8a7d: add %cl,0xffffffffffffff83(%rax)
> 0x2aaabe2a8a80: in (%dx),%al
> 0x2aaabe2a8a81: or %cl,0xffffffffffffffba(%rax)
> 0x2aaabe2a8a84: fsubrl 0x2aaaaab8(%rcx)
> 0x2aaabe2a8a8a: add %al,(%rax)
> 0x2aaabe2a8a8c: rex64 callq *%rdx
> 0x2aaabe2a8a8f: add $0x8,%rsp
> 0x2aaabe2a8a93: cmpl $0x0,0x8(%rax)
> 0x2aaabe2a8a97: je,pt 0x2aaabe2a8ab3
> 0x2aaabe2a8a9e: sub $0x8,%rsp
> 0x2aaabe2a8aa2: mov $0x2aaaac63a800,%rsi
> 0x2aaabe2a8aac: rex64 callq *%rsi
> It could be a problem with JIT'ed encode.
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