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8268773: Improvements related to: Failed to start thread - pthread_create failed (EAGAIN)

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Reviewed-by: stuefe, iklam
This commit is contained in:
David Holmes 2021-07-16 02:49:40 +00:00
parent ea77ef8348
commit e35005d5ce
8 changed files with 75 additions and 29 deletions
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15
src/hotspot/os/linux/os_linux.cpp
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@ -863,16 +863,21 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
ThreadState state;
{
ResourceMark rm;
pthread_t tid;
int ret = pthread_create(&tid, &attr, (void* (*)(void*)) thread_native_entry, thread);
int ret = 0;
int limit = 3;
do {
ret = pthread_create(&tid, &attr, (void* (*)(void*)) thread_native_entry, thread);
} while (ret == EAGAIN && limit-- > 0);
char buf[64];
if (ret == 0) {
log_info(os, thread)("Thread started (pthread id: " UINTX_FORMAT ", attributes: %s). ",
(uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
log_info(os, thread)("Thread \"%s\" started (pthread id: " UINTX_FORMAT ", attributes: %s). ",
thread->name(), (uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
} else {
log_warning(os, thread)("Failed to start thread - pthread_create failed (%s) for attributes: %s.",
os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
log_warning(os, thread)("Failed to start thread \"%s\" - pthread_create failed (%s) for attributes: %s.",
thread->name(), os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
// Log some OS information which might explain why creating the thread failed.
log_info(os, thread)("Number of threads approx. running in the VM: %d", Threads::number_of_threads());
LogStream st(Log(os, thread)::info());