Uwe Schindler created SOLR-10553:
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Summary: Caffeine causes SIGSEGV in Solr tests
Key: SOLR-10553
URL: https://issues.apache.org/jira/browse/SOLR-10553
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Uwe Schindler
Priority: Critical
While running the Solr tests, the JVM often crushes with SIGSEGV. The reason is
Caffeine's usage of Unsafe. Please open an issue on this lib or remove this
library.
I looked at Caffeine's usage of Unsafe: IT IS TOTALLY USELESS!
See this log:
https://jenkins.thetaphi.de/job/Lucene-Solr-6.x-Linux/3347/artifact/solr/build/solr-core/test/J2/hs_err_pid17108.log
{noformat}
Current thread (0xbf7af000): JavaThread "Thread-4" [_thread_in_Java, id=17265,
stack(0xc342e000,0xc347f000)]
Stack: [0xc342e000,0xc347f000], sp=0xc347dba0, free space=318k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted,
Vv=VM code, C=native code)
J 5565% c1
com.github.benmanes.caffeine.cache.BaseMpscLinkedArrayQueue.poll()Ljava/lang/Object;
(108 bytes) @ 0xe7ae7848 [0xe7ae6e20+0x00000a28]
j com.github.benmanes.caffeine.cache.BoundedLocalCache.drainWriteBuffer()V+21
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.maintenance(Ljava/lang/Runnable;)V+10
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.performCleanUp(Ljava/lang/Runnable;)V+11
j
com.github.benmanes.caffeine.cache.BoundedLocalCache$PerformCleanupTask.run()V+5
j
org.apache.solr.store.blockcache.BlockCache$$Lambda$278.execute(Ljava/lang/Runnable;)V+1
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.scheduleDrainBuffers()V+54
j com.github.benmanes.caffeine.cache.BoundedLocalCache.scheduleAfterWrite()V+44
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.afterWrite(Lcom/github/benmanes/caffeine/cache/Node;Ljava/lang/Runnable;J)V+47
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.put(Ljava/lang/Object;Ljava/lang/Object;ZZ)Ljava/lang/Object;+209
j
com.github.benmanes.caffeine.cache.BoundedLocalCache.put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;+5
j
com.github.benmanes.caffeine.cache.LocalManualCache.put(Ljava/lang/Object;Ljava/lang/Object;)V+8
j
org.apache.solr.store.blockcache.BlockCache.store(Lorg/apache/solr/store/blockcache/BlockCacheKey;I[BII)Z+176
j org.apache.solr.store.blockcache.BlockCacheTest$1.test()V+331
j org.apache.solr.store.blockcache.BlockCacheTest$1.test(I)V+8
j org.apache.solr.store.blockcache.BlockCacheTest$1.run()V+47
v ~StubRoutines::call_stub
V [libjvm.so+0x65f759] JavaCalls::call_helper(JavaValue*, methodHandle
const&, JavaCallArguments*, Thread*)+0x319
V [libjvm.so+0x910889] os::os_exception_wrapper(void (*)(JavaValue*,
methodHandle const&, JavaCallArguments*, Thread*), JavaValue*, methodHandle
const&, JavaCallArguments*, Thread*)+0x19
V [libjvm.so+0x65e093] JavaCalls::call_virtual(JavaValue*, Handle,
KlassHandle, Symbol*, Symbol*, Thread*)+0x163
V [libjvm.so+0x6ee089] thread_entry(JavaThread*, Thread*)+0x89
V [libjvm.so+0xa747d4] JavaThread::thread_main_inner()+0xf4
V [libjvm.so+0x912e5c] thread_native_entry(Thread*)+0x10c
C [libpthread.so.0+0x6f72] start_thread+0xd2
C [libc.so.6+0xee2ae] clone+0x5e
siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x8d0ffbb0
Register to memory mapping:
EAX=0x00000040 is an unknown value
EBX=0x00000000 is pointing into the stack for thread: 0xbf7ddc00
ECX=0x00000000 is pointing into the stack for thread: 0xbf7ddc00
EDX=0xc9a00918 is pointing into object: 0xc9a004f8
[error occurred during error reporting (printing register info), id 0xb]
Registers:
EAX=0x00000040, EBX=0x00000000, ECX=0x00000000, EDX=0xc9a00918
ESP=0xc347dba0, EBP=0xc347dcf0, ESI=0xc9c81ee8, EDI=0xc347dcc8
EIP=0xe7ae7848, EFLAGS=0x00010246, CR2=0x000000008d0ffbb0
Top of Stack: (sp=0xc347dba0)
0xc347dba0: 00000038 bebd16c0 c347dbf8 f702a6f9
0xc347dbb0: e6c031c0 00000028 00000004 c347dc24
Instructions: (pc=0xe7ae7848)
0xe7ae7828: f0 58 0f be b6 e4 01 00 00 83 fe 00 8b bc 24 f8
0xe7ae7838: 00 00 00 8b b4 24 98 00 00 00 0f 85 cc 06 00 00
0xe7ae7848: 89 0c 3e 8d 34 3e 8b fe 33 f9 c1 ef 14 83 ff 00
0xe7ae7858: 0f 85 cf 06 00 00 f0 83 44 24 c0 00 8b 8c 24 f4
{noformat}
The reson for this crash is wrong integer calculations while calculating
offsets.
I have seen several Unsafe-related crashes the last weeks. All coming from
Caffeine. So please, please, please: Remove that lib or ask them to remove
Unsafe!
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