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Etimedout Connection Timed Out Futex Wait Private


Thanks Tags: None paulb Axigen Support Team Join Date: Nov 2011 Posts: 1404 #2 07-01-2012, 01:52 PM Hello, So far it appears to affect several kernel versions, you may try one A simply restart of axigen does not solve the issue. Statements about groups proved using semigroups Construct a Gaussian Matrix How can I forget children toys riffs? So it looks like the code doesn't handle properly if WAKE_OP returns 0. have a peek at this web-site

The hang > happened when I tried to close the mail window. See FUTEX_WAIT for how to interpret this correctly in practice. In the cases where callers are forced into the kernel (i.e., required to perform a futex() call), they then deal directly with a so-called RT-mutex, a kernel locking mechanism which implements Like Show 0 Likes (0) Actions 5.

Futex_wait_bitset_private Etimedout (connection Timed Out)

I would like to use this thread for a discussion of questions or issues related to Java performance on VMware ESX 3.5 or vSphere 4.0. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the If I cannot, I will contact you in a private message to your community account so that I can get some additional information.

sem_timedout uses an absolute timespec, not a relative time. –ptan Feb 4 '15 at 13:33 add a comment| active oldest votes Know someone who can answer? I then installed this kernel without fastgup on our R2 system and saw that the problem is not seen. If so, then it could be that removing the mmap sem was serializing some race on this value. Futex Example Comment 4 IBM Bug Proxy 2008-04-29 09:40:55 EDT ------- Comment From sripathi@in.ibm.com 2008-04-29 09:35 EDT------- I looked at some strace outputs from hanging runs. (The test sometimes doesn't hang while running

Futex operations The futex_op argument consists of two parts: a command that specifies the operation to be performed, bit-wise ORed with zero or more options that modify the behaviour of the Futex_wait_private Etimedout Show 27 replies 1. Fast diagnose showed me that there is a lot of ETIMEDOUT during the futex lock. The load from uaddr is an atomic memory access (i.e., using atomic machine instructions of the respective architecture).

I recompiled 32 bit glibc with a modified pthread_cond_signal(), where instead of calling FUTEX_WAKE_OP, it directly calls FUTEX_WAKE. <... Futex Resumed> ) = -1 Etimedout (connection Timed Out) When traced using strace, it shows following o/p continuously :Code: Select all> futex(0x7fb8000ac728, FUTEX_WAKE_PRIVATE, 1) = 0
> futex(0x7fb8000ac754, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, {1340347489,> 822867000}, ffffffff) = -1 ETIMEDOUT (Connection timed CLOCK_MONOTONIC is unaffected by these clock changes, whereas CLOCK_REALTIME is.", from link –ptan Feb 4 '15 at 12:24 It's my stupid fault. Is there an equivalent for vim's \zs in sed or perl?

Futex_wait_private Etimedout

However, for FUTEX_CMP_REQUEUE_PI, val is required to be 1 (since the main point is to avoid a thundering herd). futex resumed> ) = 0 futex(0x7f63fd8de328, FUTEX_WAKE_PRIVATE, 1) = 0 sendto(8, "\0\361\0&\20\376\200\0\0\0\0\0\0\2PV\377\376\236a\263\0\0\233-\1\2\243\254\355\0\5s"..., 1055, 0, {sa_family=AF_INET6, sin6_port=htons(59659), inet_pton(AF_INET6, "fe80::250:56ff:fe9e:61b3", &sin6_addr), sin6_flowinfo=32768, sin6_scope_id=if_nametoindex("lo")}, 28 <... Futex_wait_bitset_private Etimedout (connection Timed Out) The remaining arguments (timeout, uaddr2, and val3) are required only for certain of the futex operations described below. Futex Etimedout Java A rude security guard How is the date of entry and exit decided?

Comment 7 Hadmut Danisch 2005-06-23 00:52:44 PDT Hi, I also have that problem with my firefox (directory local, _not_ NFS mounted). Check This Out Re: Java Performance on VMware ESX tommyodom Jul 22, 2009 11:47 AM (in response to haroldr) Hi Hal,Thank you for your response, i appreciate you taking the time to look into The arguments timeout, uaddr2, and val3 are ignored. If this value is greater than val, then the difference is the number of waiters requeued to the futex for the futex word at uaddr2. What Is Futex

The waiter can be removed from the wait on uaddr without requeueing on uaddr2 via a FUTEX_WAKE operation in another task. At the time I had a single browser window with 4 loaded tabs (i.e. Re: Java Performance on VMware ESX tommyodom Jul 22, 2009 12:11 PM (in response to tommyodom) Well I tried those settings on my Glassfish installation but still no luck, I guess Source With this mechanism, when a high-priority task becomes blocked by a lock held by a low-priority task, the priority of the low-priority task is temporarily raised to that of the high-

In order to share a futex between processes, the futex is placed in a region of shared memory, created using (for example) mmap(2) or shmat(2). (Thus, the futex word may have Futex_wake_private If this option is not set, the kernel measures the timeout against the CLOCK_MONOTONIC clock. Because it was inherently racy, FUTEX_FD has been removed from Linux 2.6.26 onward.

All other FUTEX_WAKE_OP calls in my strace outputs have returned 1, whereas this particular one has returned 0.

  • So I can conclude that the fastgup patches by themselves are not the cause of the problem, but they may be contributing to making it occur easily.
  • Priority inversion is the problem that occurs when a high- priority task is blocked waiting to acquire a lock held by a low- priority task, while tasks at an intermediate priority
  • Coprimes up to N Which meta can includegraphics read and report?

By contrast, a requeue operation wakes just one waiter and moves the other waiters to lock A, and when the woken waiter unlocks A then the next waiter can proceed. If the futex value does not match val, then the call fails immediately with the error EAGAIN. Running strace on java indexer process reveals a lot of activity, almost all of which is the futex() system call, and the occasional sendto(): futex(0x41695e58, FUTEX_WAKE_PRIVATE, 1) = 0 gettimeofday({1245245763, 884153}, Restart_syscall The timeout argument provides a timeout for the lock attempt.

Why wasn't the Imperial Pilot in Rogue One made insane or affected? And I also have this problem with Thunderbird when accessing LDAP directories. EAGAIN (FUTEX_CMP_REQUEUE, FUTEX_CMP_REQUEUE_PI) The value pointed to by uaddr is not equal to the expected value val3. http://jscience.net/connection-timed/connection-timed-out-aim-screen-name.html restart_syscall resumed> ) = -1 ETIMEDOUT (Connection timed out) futex(0x41c40be8, FUTEX_WAKE_PRIVATE, 1) = 0 clock_gettime(CLOCK_MONOTONIC, {88335, 123965121}) = 0 futex(0x7f63fd9e6e64, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x7f63fd9e6e60, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 clock_gettime(CLOCK_MONOTONIC,

I have the FoxyProxy, VMWare Console, BetterGmail, Flash and AdBlocker plugins installed (but it occurs even with all the plugins disabled). This must be performed from a non-PI futex to a distinct PI futex (or the error EINVAL results). Any objections? Like Show 0 Likes (0) Actions 12.

EINVAL (FUTEX_WAIT_BITSET, FUTEX_WAKE_BITSET) The bit mask supplied in val3 is zero. This allows the kernel to make some additional performance optimizations. Even if nothing else is happening in the browser, CPU is pegged at 100%. It is invoked when a user-space atomic acquire did not succeed because the futex word was not 0.

Therefore, callers should always conservatively assume that a return value of 0 can mean a spurious wake-up, and use the futex word's value (i.e., the user-space synchronization scheme) to decide whether Attaches the waiter to the futex (i.e., the waiter is enqueued on the RT-mutex waiter list). The machine is not doing any significant I/O, or using any CPU. But it seems that way.

EINVAL The operation in futex_op is one of those that employs a timeout, but the supplied timeout argument was invalid (tv_sec was less than zero, or tv_nsec was not less than FUTEX_WAIT_BITSET Returns 0 if the caller was woken up. If not, the operation fails with the error EAGAIN. Sometimes this app goes into wait state while using 100% cpu.

Effects of bullets firing while in a handgun's magazine How can we get our son to stop sleeping in our bed? Which meta can includegraphics read and report? The operation and comparison that are to be performed are encoded in the bits of the argument val3.

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