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stevenschlansker / pf_dump.c
Created September 24, 2015 23:58
Reproduction case for glibc netlink hang
socket(PF_NETLINK, SOCK_RAW, 0) = 78
bind(78, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(78, {sa_family=AF_NETLINK, pid=-1328743, groups=00000000}, [12]) = 0
sendto(78, "\24\0\0\0\26\0\1\3O\206\4V\0\0\0\0\0\0\0\0", 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
poll([{fd=78, events=POLLIN}], 1, 1000) = 1 ([{fd=78, revents=POLLIN}])
recvmsg(78, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"L\0\0\0\24\0\2\0O\206\4V\231\271\353\377\2\10\200\376\1\0\0\0\10\0\1\0\177\0\0\1"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 156
poll([{fd=78, events=POLLIN}], 1, 1000) = 1 ([{fd=78, revents=POLLIN}])
recvmsg(78, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"H\0\0\0\24\0\2\0O\206\4V\231\271\353\377\n\200\200\376\1\0\0\0\24\0\1\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 144
poll([{fd=78, events=POLLIN}], 1, 1000) = 1 ([{fd=78, revents=POLLIN}])
recvmsg(78, {msg_name(12)={sa_family=AF_NETLINK, pi
@stevenschlansker
stevenschlansker / gist:3433f9f99cf11a0a3298d72758c78ee5
Created June 16, 2020 04:27
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: /home/zlandes/asn/log/scraper.log (No such file or directory)
at java.base/java.io.FileOutputStream.open0(Native Method)
at java.base/java.io.FileOutputStream.open(FileOutputStream.java:291)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:234)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:155)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:294)
at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:207)
at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:165)
at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:307)
@stevenschlansker
stevenschlansker / TestJdk12Regression.java
Created April 9, 2019 17:44
public class TestJdk12Regression {
@FunctionalInterface
interface HandleCallback<T, X extends Exception> {
T withHandle(Handle handle) throws X;
}
@FunctionalInterface
interface HandleConsumer<X extends Exception> {
void useHandle(Handle handle) throws X;
}
@stevenschlansker
stevenschlansker / gist:807d0e331aaf569b03450d97a3eb602b
Created April 9, 2019 17:03
[INFO] Compiling 124 source files to /home/travis/build/jdbi/jdbi/core/target/test-classes
An exception has occurred in the compiler (12). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitApply(Flow.java:1304)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1709)
at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:394)
at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.visitSelect(TreeScanner.java:308)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2189)
at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
@stevenschlansker
stevenschlansker / gist:c1ec1e4bd3346c5811cbc74f5bd6e995
Last active April 1, 2019 00:01
Benchmark Mode Cnt Score Error Units
Afterburner.beanArrayDeser ss 10 26.001 ± 5.210 ms/op
Blackbird.beanArrayDeser ss 10 26.777 ± 4.589 ms/op
Vanilla.beanArrayDeser ss 10 31.012 ± 5.982 ms/op
Afterburner.beanArraySer ss 10 3.301 ± 1.122 ms/op
Blackbird.beanArraySer ss 10 3.956 ± 1.089 ms/op
Vanilla.beanArraySer ss 10 3.625 ± 1.376 ms/op
Afterburner.classicBeanItemDeser ss 10 5.510 ± 1.597 ms/op
@stevenschlansker
stevenschlansker / gist:38a9cf0a15988d7058d377fee558a831
Last active March 31, 2019 20:10
# JMH version: 1.21
# VM version: JDK 12, OpenJDK 64-Bit Server VM, 12+33
# VM invoker: /usr/lib/jvm/java-12-openjdk-12.0.0.33-1.ea.1.rolling.fc29.x86_64/bin/java
# VM options: <none>
# Warmup: <none>
# Measurement: 1 iterations, 120 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Throughput, ops/time
# Benchmark: com.fasterxml.jackson.module.blackbird.Afterburner.beanArrayDeser
@stevenschlansker
stevenschlansker / gist:b7769735ce3205f017f2ae5cf398f933
Created January 23, 2019 04:12
# JMH version: 1.21
# VM version: JDK 11.0.1, OpenJDK 64-Bit Server VM, 11.0.1+13
# VM invoker: /usr/lib/jvm/java-11-openjdk-11.0.1.13-10.fc29.x86_64/bin/java
# VM options: <none>
# Warmup: 5 iterations, 2 s each
# Measurement: 5 iterations, 5 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Throughput, ops/time
# Benchmark: org.jdbi.v3.core.qualifier.EnumBenchmark.mapEnumCaseInsensitive
@stevenschlansker
stevenschlansker / gist:afc65d80f895fa1000f6e383d16cc2bc
Created January 23, 2019 03:48
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openjdk.jmh.util.Utils (file:/home/steven/ot-code/jdbi3/benchmark/target/benchmarks.jar) to field java.io.Console.cs
WARNING: Please consider reporting this to the maintainers of org.openjdk.jmh.util.Utils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
# JMH version: 1.21
# VM version: JDK 11.0.1, OpenJDK 64-Bit Server VM, 11.0.1+13
# VM invoker: /usr/lib/jvm/java-11-openjdk-11.0.1.13-10.fc29.x86_64/bin/java
# VM options: <none>
# Warmup: 5 iterations, 2 s each
@stevenschlansker
stevenschlansker / gist:c9baae77be3775868a88474074e04999
Created January 23, 2019 03:54
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openjdk.jmh.util.Utils (file:/home/steven/ot-code/jdbi3/benchmark/target/benchmarks.jar) to field java.io.Console.cs
WARNING: Please consider reporting this to the maintainers of org.openjdk.jmh.util.Utils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
# JMH version: 1.21
# VM version: JDK 11.0.1, OpenJDK 64-Bit Server VM, 11.0.1+13
# VM invoker: /usr/lib/jvm/java-11-openjdk-11.0.1.13-10.fc29.x86_64/bin/java
# VM options: <none>
# Warmup: 5 iterations, 2 s each
@stevenschlansker
stevenschlansker / gist:9e293f89e47ebce9d4ba7f6e3e641ac7
Created June 5, 2018 22:01
TP tp = new KeepaliveTCP();
tp.setBindAddress(bindHost != null ? InetAddress.getByName(bindHost) : InetAddress.getLocalHost());
tp.setBindPort(port);
tp.bundler("no-bundler");
// Discover peers by connecting over TCP. AWS doesn't do multicast UDP.
// Also our network is suspect so TCP will give us better diagnostics for lost packets
TCPPING tcpping = new TCPPING();
tcpping.setPortRange(0);