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Mantis - Quercus
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| Viewing Issue Advanced Details | |||||
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 1719 | crash | always | 04-27-07 08:44 | 04-29-07 02:53 | |
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| Reporter: | salishev | Platform: | |||
| Assigned To: | nam | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | closed | Product Version: | 3.1.1 | ||
| Product Build: | Resolution: | fixed | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 3.1.1 | ||
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| Summary: | 0001719: Thread race when com.caucho.quercus.env.DefinitionState | ||||
| Description: |
I've checked with latest resin-3.1.s070425 snapshot The following exception is always thrown when requesting 64K pages from 2 or more threads simultanously [19:31:33.820] java.util.ConcurrentModificationException [19:31:33.820] at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) [19:31:33.820] at java.util.HashMap$EntryIterator.next(HashMap.java:833) [19:31:33.820] at java.util.HashMap$EntryIterator.next(HashMap.java:831) [19:31:33.820] at java.util.HashMap.putAll(HashMap.java:523) [19:31:33.820] at com.caucho.quercus.env.DefinitionState.<init>(DefinitionState.java:98) [19:31:33.820] at com.caucho.quercus.env.DefinitionState.copy(DefinitionState.java:357) [19:31:33.820] at com.caucho.quercus.Quercus.putDefinitionCache(Quercus.java:673) [19:31:33.820] at com.caucho.quercus.env.Env.importPage(Env.java:3317) [19:31:33.820] at com.caucho.quercus.env.Env.include(Env.java:3295) [19:31:33.820] at com.caucho.quercus.expr.IncludeExpr.eval(IncludeExpr.java:86) [19:31:33.820] at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64) [19:31:33.820] at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99) [19:31:33.820] at com.caucho.quercus.program.Function.callImpl(Function.java:316) [19:31:33.820] at com.caucho.quercus.program.Function.call(Function.java:264) [19:31:33.820] at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180) [19:31:33.820] at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125) [19:31:33.820] at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64) [19:31:33.820] at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99) [19:31:33.820] at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239) [19:31:33.820] at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61) [19:31:33.820] at com.caucho.quercus.page.QuercusPage.executeTop(QuercusPage.java:115) [19:31:33.820] at com.caucho.quercus.servlet.ResinQuercusServlet.service(ResinQuercusServlet.java:125) [19:31:33.820] at com.caucho.quercus.servlet.QuercusServlet.service(QuercusServlet.java:341) [19:31:33.820] at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) [19:31:33.820] at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103) [19:31:33.820] at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:175) [19:31:33.820] at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:240) [19:31:33.820] at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:263) [19:31:33.820] at com.caucho.server.port.TcpConnection.run(TcpConnection.java:477) [19:31:33.820] at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:600) [19:31:33.820] at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:522) [19:31:33.820] at java.lang.Thread.run(Thread.java:619) |
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| Steps To Reproduce: | |||||
| Additional Information: |
Can't provide the test case as it's proprietary software. It uses DokuWiki as a backend and creates an exhaustive multi-threaded request stream through http with page size of 64K. Synchronizing access to com.caucho.quercus.env.DefinitionState solves the problem. |
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