search for: acquires

Hi, when I tested building nbdkit 1.1.15 in a current Debian chroot, I ran into the following test failure. A repeated build went fine through the tests and so far I have not been able to reproduce it with the previous version. The failing build was done using a clean Debian/sid, amd64 chroot spawned by sbuild. Cheers, -Hilko FAIL: test-python =================

Hello, I am trying to execute virsh commands on a host but it is giving errors due to failure in acquiring lock. root at kvm01:~# virsh suspend blindone error: Failed to suspend domain blindone error: Timed out during operation: cannot acquire state change lock Any suggestions how can we figure out possible reasons. -- Jatin -------------- next part -------------- An HTML attachment was

Hi, after a recent live backup done with a snapshot, blockcommit failed and a subsequent (manual) blockjob abort got stuck. Now we are unable to do basic operations on the virtual machine like if it was frozen and when issuing another command we see the following: $ virsh shutdown $domain error: Failed to shutdown domain $domain error: Timed out during operation: cannot acquire state change lock

I'm working with an experimental backend for an MCU with heavy multithreading capabilities but lacks proper acquire/release semantics. This is okay, as the programmer can customize __cxa_guard_acquire and __cxa_guard_release to lower/raise appropriate semaphores. The issue I'm having is that I can't seem to figure out when to lower atomic load into an acquire/load pair early

Hi, syslinux: I use pxelinux to install Linux from network. Currently, my problem is: The first time, the client machine can acquire the IP address from dhcp server but at the second time, the client machine cannot acquire the IP again. The only way is to remove the /var/lib/dhcp/dhcpd.leases file in server and restart the dhcpd service. Then the client machine can get the IP again.

A question has come up on how to interpret the wording of LLVM's documentation regarding the possible memory ordering for success and failure of atomic compare_exchange operations. >From the LLVM reference: "The success and failure ordering <https://llvm.org/docs/LangRef.html#ordering> arguments specify how this cmpxchg synchronizes with other atomic operations. Both ordering

I have no idea whatsoever as to why racoon/IKE does not work here. I've tried various how-to documents but found nothing that works for me. Gateway (10.0.0.1) running 4.9-stable. Laptop (10.0.0.10) running 5.2.1-release. Both running racoon-20040408a On the gateway 10.0.0.1 # cat /etc/ipsec.conf add 10.0.0.1 10.0.0.10 esp 691 -E rijndael-cbc "1234567890123456" -A hmac-sha1

--- src/locks.c | 26 ++++++-------------------- 1 file changed, 6 insertions(+), 20 deletions(-) diff --git a/src/locks.c b/src/locks.c index bd8fd99..1724b5a 100644 --- a/src/locks.c +++ b/src/locks.c @@ -56,53 +56,39 @@ lock_init_thread_model (void) void lock_connection (void) { - if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS) { - debug ("acquire connection

Hi I keep getting libvirtError: Timed out during operation: cannot acquire state change lock errors - what does this mean exactly ? Using Ubuntu 64 bit 10.04 host and guest -- Kind regards Julian Robbins

Hi, I'm getting a returning build failure when building a linux->windows crosscompiler out of LLVM/Clang. Attached is config.log and below is the output of "make VERBOSE=1" llvm[2]: Linking Release executable FileCheck (without symbols) g++ -I/home/ruben/mingw-w64/toolchain/linux64mingw64/llvm-clang/include

...the actual silicon. > > > > I do wonder, though, if there is some way to make the compiler do > > something better for us. Clearly, implementing real > > memory_order_consume hasn't worked out until today. But maybe the > > compiler could promote dependent loads to acquires if it recognizes it > > lost dependencies during optimizations. Just thinking out loud, it > > probably still has some weird corner case that will break. ;-) > > > > The other thing is that I'd be cautious blaming LTO, as I tried to > > summarize here: > > ht...

Hi everyone, I have a question that you may be able to help me with. I had a live block migration of a qemu-kvm guest fail (initiated via nova), in which the guest remained running on the source, but if I try to re-initiate the live migration it returns libvirtError: Timed out during operation: cannot acquire state change lock (held by monitor=remoteDispatchDomainMigratePerform3Params). Looking at

Hi, what's the current status of the memory-ordered operations described in https://docs.google.com/Doc?docid=0AYWBeVVqyP7dZGRiNG1oeHpfMjJkejVnOThkZA&hl=en.&pli=1 i.e. the ones for "load acquire", "store release" etc. for C++0x atomics, not the older ones for the __sync intrinsics? The specification looks good - is it just waiting to be implemented? Al --

FYI, Google is acquiring On2: <http://www.betanews.com/article/Future-of-open-Web-video-may-change-with-Google-acquisition-of-On2/1249481107> Also on Slashdot: <http://tech.slashdot.org/article.pl?sid=09/08/05/1742249> Anyone knows what, if anything, this means for Theora, open video and/or the Xiph.Org Foundation? Wild speculation: considering that they complained about the

On Fri, May 30, 2014 at 11:43:55AM -0400, Waiman Long wrote: > Enabling this configuration feature causes a slight decrease the > performance of an uncontended lock-unlock operation by about 1-2% > mainly due to the use of a static key. However, uncontended lock-unlock > operation are really just a tiny percentage of a real workload. So > there should no noticeable change in

On Fri, May 30, 2014 at 11:43:55AM -0400, Waiman Long wrote: > Enabling this configuration feature causes a slight decrease the > performance of an uncontended lock-unlock operation by about 1-2% > mainly due to the use of a static key. However, uncontended lock-unlock > operation are really just a tiny percentage of a real workload. So > there should no noticeable change in

On 11/21/2017 03:21 PM, Richard W.M. Jones wrote: > This works OK on x86_64, but fails on our fast new Amberwing (aarch64) > machine. I've attached the test-suite.log file, but I'm not very sure > what's going wrong from that. > I'll see what I can spot... > FAIL: test-parallel-file.sh > =========================== > > read 1/1 bytes at offset 0 > 1

Everyone, I apologize if this is off topic for this list!!!!! I have an application that I need to acquire, store and merge to a pdf file a digital signature from a client. What favorite equipment do some of you use to do this. I contacted the topaz systems support team, and they advised me their equipment produced a proprietary file type, and required me to sign a non-disclosure agreement to

The messages are not really useful to us, but they do bloat the debugging output of virt-v2v massively: nbdkit: python[1]: debug: acquire global request lock nbdkit: python[1]: debug: acquire per-connection request lock nbdkit: python[1]: debug: acquire unload prevention lock nbdkit: python[1]: debug: pwrite count=2097152 offset=4628414464 fua=0 nbdkit: python[1]: debug: release unload prevention

Hi, After recently upgrading to 0.9.11 (as shipped with Fedora 17), I was just trying to migrate a qemu domain from one host to another (using virDomainMigrateToURI()), when I got this error message: Unsafe migration: Migration may lead to data corruption if disks use cache != none Okay, this is explainable (if a bit disappointing - I would have hoped that qemu would be able to disable disk