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• Crash Report in Ubuntu... hardware problem?

  - by Andrew

  Got this on my machine. I was just browsing the web on Chrome and my computer froze. I recently just built this machine. I have a feeling it is a hardware problem... Possibly one of my parts arrived broken in some way.... Starting anac(h)ronistic cron Stopping anac(h)ronistic cron Stopping cold plug devices Stopping log initial device creation Starting enable remaining boot-time encrypted block devices Starting configure network device security Starting configure virtual network devices Starting save udev log and update rules Stopping configure virtual network devices Stopping save udev log and update rules Checking battery state... Stopping System V runlevel compatibility Stopping enable remaining boot-time encrypted block devices Stopping Mount filesystems on boot 91.573384] BUG: unable to handle kernel NULL pointer dereference at (null) 91.573437] IP: [<ffffffff81313514>] strcmp+0x14/0x30 91.573470] PGD 1f7822067 PUD 1ed7a6067 PMD 0 91.573498] Oops: 0000 [#1] SMP 91.573519] CPU 3 91.573531] Modules linked in: dm_crypt bnep snd_hda_codec_realtek rfcomm bluetooth parport_pc ppdev arc4 fglrx(P) rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac0021 cfg80211 psmouse snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer send_seq_device snd joydev mac_hid mei(C) soundcore serio_raw snd_page_alloc lp parport ses enclosure usbhid hid i915 drm_kms_helper drm i2c_algo_bit mxm_umi tg_video wmi usb_storage 91.573826] 91.573837] Pid: 2297, comm: update-notifier Tainted: P C O 3.2.0-29-generic #46-Ubuntu To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Extreme4 91.573912] RIP: 0010:[<ffffffff81313514>] [<ffffffff81313514>] strcmp+0x14/0x30 91.573954] RSP: 0018:ffff8801f83f5bb8 EFLAGS: 00010246 91.573982] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 91.574019] RDX: 0000000000000069 RSI: 0000000000000000 RDI: ffff88021adb26f8 91.574056] RBP: ffff8801f83f5bb8 R08: ffff88022f2d6e80 R09: 0000000000000000 91.574093] R10: ffff88021e7dbf00 R11: 0000000000000003 R12: ffff88021c10eb40 91.574130] R13: 0000000000000000 R14: ffff88021adb26f8 R15: ffff8801f83f5d40 91.574168] FS: 00007f958cf53940(0000) GS:ffff88022f2c0000(0000) kn1GS:0000000000000000 91.574210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 91.574240] CR2: 0000000000000000 CR3: 000000021f6d7000 CR4: 00000000000406e0 91.574277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 91.574314] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000000 91.574351] Process update-notifier (pid: 2297, threadinfo ffff801f83f4000, task ffff880208fe2e00) 91.574397] Stack: 91.574409] ffff8801f83f5be8 ffffffff811ed509 ffff88021adb26c0 ffff88021b8b7020 91.574453] ffff88021b461c60 fffffffffffffffe ffff8801f83f5c18 ffffffff811ed61f 91.574496] ffff88021adb26c0 ffff88021b8b7020 ffff8801f83f5dc8 0000000000000001 91.574539] Call Trace: 91.574558] [<ffffffff811ed509] sysfs_find_dirent+0x59/0x110 91.574591] [<ffffffff811ed61f] sysfs_lookup+0x5f/0x110 91.574621] [<ffffffff81182745] d_alloc_and_lookup+0x45/0x90 91.574654] [<ffffffff8118fe65] ? d_lookup+0x35/0x60 91.574683] [<ffffffff811848d2] do_lookup+0x202/0x310 91.574712] [<ffffffff8118660c] path_lookupat+0x11c/0x750 91.574744] [<ffffffff81318db7] ? __strncpy_from_user+0x27/0x60 91.574778] [<ffffffff81186c71] do_path_lookup+0x31/0xc0 91.574809] [<ffffffff81187779] user_path_at_empty+0x59/0xa0 91.574842] [<ffffffff81187822] ? do_filp_open+0x42/0xa0 91.574872] [<ffffffff811877d1] user_path_at+0x11/0x20 91.574902] [<ffffffff8117c80a] vfs_fstatat+0x3a/0x70 91.574933] [<ffffffff81161cff] ? kmem_cache_free+0x2f/0x110 91.574965] [<ffffffff8117c85e] vfs_lstat+-x31/0x70 91.574993] [<ffffffff8117c9fa] sys_newlstat+0x1a/0x40 91.575022] [<ffffffff81176ee1] ? do_sys_open+0x171/0x220 91.575053] [<ffffffff8117cb1a] ? sys_readlinkat+0x7a/0xb0 91.575086] [<ffffffff81661ec2] system_call_fastpath+0x16/0x1b 91.575118] Code: 83 c1 01 40 84 ff 75 ef 5d c3 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 00 55 31 c0 48 89 e5 66 2e 0f 1f 84 00 00 00 00 00 0f b6 14 07 <3a> 14 06 75 0f 48 83 c0 01 84 d2 75 ef 31 c0 5d c3 0f 1f 00 19 91.577243] RIP [<ffffffff81313514>] strcmp+0x14/0x30 91.579314] RSP <ffff8801f83f5bb8> 91.581385] CR2: 0000000000000000

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• Vmware Fusion + Ubuntu 12.04, shortcut

  - by lucaghera

  I'm running vmware fusion 5 under OSx Mountain Lion. My virtual machine is running Ubuntu 12.04. I have two fastidious shortcuts which I would like to disable: When I press the command key Ubuntu opens the dash and shows under the text field a set of icons. When I press the option+` keys (which I use fot making accented letters) Ubuntu opens the dash without showing the icons under the text field. How can I disable or block these shortcuts?

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• Agile PLM 9.3 Service Pack 2 (SP2 or 9.3.0.2) is released along with AUT 1.6.2.0 and AutoVue 20 for

  - by Shane Goodwin

  Oracle released Agile PLM 9.3 SP2 on June 14 and the Agile installer for AutoVue 20 for Agile PLM on April 30. Also available are the new versions of AUT and Averify - 1.6.3 for both tools. 9.3 SP2 is a combined English and NLS release for use on any version of 9.3.0. SP2 contains many bug fixes and rolls up several Hot Fixes - please review the Readme for all the details. In addition, this release also addresses some scalability issues when working with very large Exports and Reports. When exporting very large BOMs, the export module will now release objects more efficiently to reduce the amount of memory consumed on the Application Server. Adminstrators can also control the maximum row limits for Users verses system processes, like ACS. Several out of the box BOM reports have also been changed to use a new row limit option. The combination of all these changes will provide more stability on the application server for customers managing very large datasets. 9.3 SP2 also adds support for Oracle Database 11gR2 for Windows, Oracle Internet Directory (OID) and Oracle Access Manager (OAM). Please note that currently the Variant Patch is not intended to be released for SP2. Customers running the Variant Patch should remain on 9.3.0.0 or 9.3.0.1. Back in April, we also released the AutoVue 20 for Agile PLM installer. AutoVue 20 has many new features which will help Agile PLM customers. Large multi-page Word documents and 2D CAD documents will open more quickly to the first page or first rendition. Memory usage is less when working with 3D Models. There are many new formats supported for MCAD, 2D Cad, and EDA. AutoVue 20 is immediately available for Windows and Linux platforms. The new software can be found in Edelivery or Metalink / Oracle Support: - AutoVue 20 for Agile PLM is on E-Delivery with part number B58963-01 - Oracle Agile PLM 9.3 Service Pack 2 (9.3.0.2) My Oracle Support Patch ID 9782736 - AVERIFY 1.6.3 My Oracle Support Patch ID 9791892 - AUT 1.6.3 My Oracle Support Patch ID 9791908 - Agile PLM 9.3 SP2 Documentation is available on the OTN Agile Documentation Page

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• How to sort a ListView control by a column in Visual C#

  - by bconlon

  Microsoft provide an article of the same name (previously published as Q319401) and it shows a nice class 'ListViewColumnSorter ' for sorting a standard ListView when the user clicks the column header. This is very useful for String values, however for Numeric or DateTime data it gives odd results. E.g. 100 would come before 99 in an ascending sort as the string compare sees 1 < 9. So my challenge was to allow other types to be sorted. This turned out to be fairly simple as I just needed to create an inner class in ListViewColumnSorter which extends the .Net CaseInsensitiveComparer class, and then use this as the ObjectCompare member's type. Note: Ideally we would be able to use IComparer as the member's type, but the Compare method is not virtual in CaseInsensitiveComparer , so we have to create an exact type: public class ListViewColumnSorter : IComparer {     private CaseInsensitiveComparer ObjectCompare;     private MyComparer ObjectCompare;     ... rest of Microsofts class implementation... } Here is my private inner comparer class, note the 'new int Compare' as Compare is not virtual, and also note we pass the values to the base compare as the correct type (e.g. Decimal, DateTime) so they compare correctly: private class MyComparer : CaseInsensitiveComparer {     public new int Compare(object x, object y)     {         try         {             string s1 = x.ToString();             string s2 = y.ToString();               // check for a numeric column             decimal n1, n2 = 0;             if (Decimal.TryParse(s1, out n1) && Decimal.TryParse(s2, out n2))                 return base.Compare(n1, n2);             else             {                 // check for a date column                 DateTime d1, d2;                 if (DateTime.TryParse(s1, out d1) && DateTime.TryParse(s2, out d2))                     return base.Compare(d1, d2);             }         }         catch (ArgumentException) { }           // just use base string compare         return base.Compare(x, y);     } } You could extend this for other types, even custom classes as long as they support ICompare. Microsoft also have another article How to: Sort a GridView Column When a Header Is Clicked that shows this for WPF, which looks conceptually very similar. I need to test it out to see if it handles non-string types. #

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• Mixed Solaris 10 and 11 versions in logical domains on the same server

  - by jsavit

  One question that comes up frequently is whether you can mix Solaris 10 and Solaris 11 in different logical domains under Oracle VM Server for SPARC. The answer is yes depending only on the system software requirements for the underlying hardware platform. Different versions of Solaris 10 and 11 can exist side-by-side on the same server and can act as control, service, I/O or guest domains subject only to the minimum software levels documented in the System Requirements section of the Oracle VM Server for SPARC Release Notes. Here's an example just taken from a running system. First, here's the control domain, which is running Solaris 10. I've highlighted a guest running Solaris 11. # uname -a SunOS atl-sewr-24 5.10 Generic_147440-01 sun4v sparc SUNW,SPARC-Enterprise-T5220 # ldm -V Logical Domains Manager (v 2.1) Hypervisor control protocol v 1.7 Using Hypervisor MD v 1.3 System PROM: Hypervisor v. 1.10.0 @(#)Hypervisor 1.10.0 2011/04/27 16:19\015 # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 1.6% 120d 17h atl-sewr-pool-148 active -n---- 5001 8 2G 0.1% 119d 21h atl-sewr-pool-152 active -n---- 5000 8 4G 0.2% 112d 19h atl-sewr-pool-154 active -n---- 5002 8 2G 0.1% 120d 15h atl-sewr-pool-155 active -n---- 5003 16 2G 0.0% 26d 14h 30m This system is running Oracle VM Server 2.1 with a Solaris 10 control domain. Hmm, I should update this machine to 2.2 when I get a few free moments. Upgrading is very straightforward. Here's a display logging into the highlighted guest: Last login: Mon May 21 10:18:16 2012 from dhcp-adc-twvpn- Oracle Corporation SunOS 5.11 11.0 November 2011 sewr@atl-sewr-pool-152:~$ uname -a SunOS atl-sewr-pool-152 5.11 11.0 sun4v sparc SUNW,SPARC-Enterprise-T5220 sewr@atl-sewr-pool-152:~$ cat /etc/release Oracle Solaris 11 11/11 SPARC Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved. Assembled 18 October 2011 sewr@atl-sewr-pool-152:~$ sudo virtinfo -ct Password: Domain role: LDoms guest Control domain: atl-sewr-24 sewr@atl-sewr-pool-152:~$ That's running the GA version of Solaris 11, so I probably should update that some time too. Note the use of the virtinfo -ct command that lets the guest get information about the hosting environment. Summary You can mix and match versions of Solaris in logical domains. All the different combinations work: Solaris 10 and/or Solaris 11 control and service domains with Solaris 10 and/or Solaris 11 guests. Mixing different guest OS levels on the same server is one of the traditional reasons for using virtual machines in the first place since virtual machines were invented some 40 years ago, used to run production and test systems in parallel while upgrading OS levels. This can easily be done with Oracle VM Server for SPARC (Logical Domains).

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• Which language and platform features really boosted your coding speed?

  - by Serge

  The question is about delivering working code faster without any regard for design, quality, maintainability, etc. Here is the list of things that help me to write and read code faster: Language: static typing, support for object-oriented and functional programming styles, embedded documentation, short compile-debug-fix cycle or REPL, automatic memory management Platform: "batteries" included (text, regex, IO, threading, networking), thriving community, tons of open-source libs Tools: IDE, visual debugger, code-completion, code navigation, refactoring

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• June 17, 2010 Webcast - 5 Security Tips To Reduce Cost Using Oracle Directory Services

  - by mark.wilcox

  We're delivering another webcast on June 17 (next week!): 5 Security Tips To Reduce Cost Using Oracle Directory Services  Organizations with business units spread around the world face costly and time consuming security concerns. However, many of these companies are forced to deal with increased scrutiny and security demands while resources are reduced. This live webcast focuses on concrete ways IT organizations can use directory services to do more with less.  Posted via email from Virtual Identity Dialogue

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• Tuxedo Load Balancing

  - by Todd Little

  A question I often receive is how does Tuxedo perform load balancing.  This is often asked by customers that see an imbalance in the number of requests handled by servers offering a specific service. First of all let me say that Tuxedo really does load or request optimization instead of load balancing.  What I mean by that is that Tuxedo doesn't attempt to ensure that all servers offering a specific service get the same number of requests, but instead attempts to ensure that requests are processed in the least amount of time.   Simple round robin "load balancing" can be employed to ensure that all servers for a particular service are given the same number of requests.  But the question I ask is, "to what benefit"?  Instead Tuxedo scans the queues (which may or may not correspond to servers based upon SSSQ - Single Server Single Queue or MSSQ - Multiple Server Single Queue) to determine on which queue a request should be placed.  The scan is always performed in the same order and during the scan if a queue is empty the request is immediately placed on that queue and request routing is done.  However, should all the queues be busy, meaning that requests are currently being processed, Tuxedo chooses the queue with the least amount of "work" queued to it where work is the sum of all the requests queued weighted by their "load" value as defined in the UBBCONFIG file.  What this means is that under light loads, only the first few queues (servers) process all the requests as an empty queue is often found before reaching the end of the scan.  Thus the first few servers in the queue handle most of the requests.  While this sounds non-optimal, in fact it capitalizes on the underlying operating systems and hardware behavior to produce the best possible performance.  Round Robin scheduling would spread the requests across all the available servers and thus require all of them to be in memory, and likely not share much in the way of hardware or memory caches.  Tuxedo's system maximizes the various caches and thus optimizes overall performance.  Hopefully this makes sense and now explains why you may see a few servers handling most of the requests.  Under heavy load, meaning enough load to keep all servers that can handle a request busy, you should see a relatively equal number of requests processed.  Next post I'll try and cover how this applies to servers in a clustered (MP) environment because the load balancing there is a little more complicated. Regards,Todd LittleOracle Tuxedo Chief Architect

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• 25 Secrets for Faster ASP.NET: the Eagle has landed!

  - by Michaela Murray

  On Friday we launched our new free eBook, 25 Secrets for Faster ASP.NET Applications! Heading for 1000 of you have picked it up already, but if you haven’t got your copy yet, you can grab it from http://www.red-gate.com/25secrets. It’s the follow up to the wildly successful 50 Ways to Avoid, Find and Fix ASP.NET Performance Issues, which we released back in January this year (you can download from www.red-gate.com/50ways). Once again, we collected tips from some of the smartest brains in the ASP.NET community, but this time around, we’ve covered the latest stuff in the .NET framework – async/await, Web API, and more. Houston, we have a winner… In my original blogpost, I offered a Microsoft Surface as a prize for the best tip. Now, after some serious deliberation, our judges have settled on a winner. By a unanimous verdict, the prize goes to… (wait for it!) … Jeffrey Richter, for this cheeky number, Tip #1 in the new book: Want to build scalable websites and services? Work asynchronously One of the secrets to producing scalable websites and services is to perform all your I/O operations asynchronously to avoid blocking threads. When your thread issues a synchronous I/O request, the Windows kernel blocks the thread. This causes the thread pool to create a new thread, which allocates a lot of memory and wastes precious CPU time. Calling xxxAsync method and using C#’s async/await keywords allows your thread to return to the thread pool so it can be used for other things. This reduces the resource consumption of your app, allowing it to use more memory and improving response time to your clients. Congratulations Jeffrey! Of course, I also owe a massive thank you to everyone who’s been involved in the book, especially all the authors. It’s a real treat to work with a developer community that’s so keen to collaborate and to share their hard-won nuggets of performance knowhow. If you haven’t read it yet, I can’t recommend it highly enough. You can get it for free at www.red-gate.com/25secrets The full backstory for both eBooks: https://www.simple-talk.com/blogs/2012/11/15/application-performance-the-best-of-the-web/ https://www.simple-talk.com/blogs/2012/11/27/application-performance-episode-2-announcing-the-judges/ https://www.simple-talk.com/blogs/2013/01/25/free-ebook-50-ways-to-avoid-find-and-fix-asp-net-performance-issues/ https://www.simple-talk.com/blogs/2013/03/22/50-ways-to-avoid-find-and-fix-asp-net-performance-issues-the-next-generation/

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• How does process priority influence a process

  - by Luis Alvarado - The Wolverine

  Assuming we have read the following question: Change niceness (priority) of a running process and we know about root, non-root permissions: What actually happens when a running process (Through renice) or a new process (Through nice) gets its priority changed to a positive/negative value it previously had. Does it mean more memory is assign to it? Does more CPU power go to that particular process? Does it reduce any timing for resources for that process? What happens when the process priority change?

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• Wireless acting weird ubuntu 12.04 LTS

  - by Philip Yeldhos

  I'm kinda new here, so please bear with me. My wireless driver is acting very weird. It shows my router's name, but when it is connecting (after entering the correct password), the icon on the tray is like, refreshing every once in a second, while showing the animation that it is connecting. And after a few seconds, error message come up saying that wireless network is disconnected. I installed the drive through "additional drivers". What info do you need? Somebody please help. philip@philip-HP-Mini-110-3100:~$ sudo iwconfig lo no wireless extensions. eth1 IEEE 802.11 ESSID:"" Mode:Managed Frequency:2.472 GHz Access Point: Not-Associated Bit Rate:72 Mb/s Tx-Power:24 dBm Retry min limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=5/5 Signal level=0 dBm Noise level=-96 dBm Rx invalid nwid:0 Rx invalid crypt:11 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 eth0 no wireless extensions. here's what lspci -v gave me: 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Hewlett-Packard Company Device 1483 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at 52000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [58] Vendor Specific Information: Len=78 <?> Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Capabilities: [160] Device Serial Number 00-00-82-ff-ff-3f-e0-2a Capabilities: [16c] Power Budgeting <?> Kernel driver in use: wl Kernel modules: wl, bcma, brcmsmac okay, i removed the driver additional drivers gave me. now, this is what has happened: lsmod gave me: philip@philip-HP-Mini-110-3100:~$ lsmod | grep brc brcmsmac 540875 0 mac80211 436455 1 brcmsmac brcmutil 14675 1 brcmsmac cfg80211 178679 2 brcmsmac,mac80211 crc8 12781 1 brcmsmac cordic 12487 1 brcmsmac and iwconfig gave me: philip@philip-HP-Mini-110-3100:~$ iwconfig lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=19 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off eth0 no wireless extensions. and lspci -v gave me: 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Hewlett-Packard Company Device 1483 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at 52000000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: brcmsmac Kernel modules: bcma, brcmsmac

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• Wifi disabled for Intel Centrino Wireless-N 1000 Intel in 12.04

  - by new_bie

  Laptop model - HP- dm4 - 2070. I had faced the same problem for wireless being disabled in case of 11.10. It had to do with the new kernel. I thought with 12.04 this problem will be handled but the problem persists. Is there no way to get the wireless working except for the way mentioned in the following link ?? Wifi for Centrino Wireless-N 1000 Intel Corporation (HP pavillion dm4 - 2070us) is not working Output for sudo lshw -class network *-network UNCLAIMED description: Network controller product: Centrino Wireless-N 1000 vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress cap_list configuration: latency=0 resources: memory:c2500000-c2501fff *-network description: Ethernet interface product: AR8151 v2.0 Gigabit Ethernet vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:08:00.0 logical name: eth0 version: c0 serial: 2c:41:38:07:f3:e3 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.1.116 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:43 memory:c1400000-c143ffff ioport:2000(size=128) Output for dmesg | grep iwl [ 14.742886] iwlwifi 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 14.742897] iwlwifi 0000:01:00.0: setting latency timer to 64 [ 14.743013] iwlwifi 0000:01:00.0: pci_resource_len = 0x00002000 [ 14.743016] iwlwifi 0000:01:00.0: pci_resource_base = ffffc90000c78000 [ 14.743018] iwlwifi 0000:01:00.0: HW Revision ID = 0x0 [ 14.743119] iwlwifi 0000:01:00.0: irq 42 for MSI/MSI-X [ 14.743161] iwlwifi 0000:01:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 14.743229] iwlwifi 0000:01:00.0: L1 Enabled; Disabling L0S [ 14.765147] iwlwifi 0000:01:00.0: device EEPROM VER=0x15d, CALIB=0x6 [ 14.765151] iwlwifi 0000:01:00.0: Device SKU: 0X50 [ 14.765154] iwlwifi 0000:01:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3 [ 14.765907] iwlwifi 0000:01:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels [ 14.912840] iwlwifi 0000:01:00.0: request for firmware file 'iwlwifi-1000-5.ucode' failed. [ 14.914254] iwlwifi 0000:01:00.0: request for firmware file 'iwlwifi-1000-4.ucode' failed. [ 14.915718] iwlwifi 0000:01:00.0: request for firmware file 'iwlwifi-1000-3.ucode' failed. [ 14.916986] iwlwifi 0000:01:00.0: request for firmware file 'iwlwifi-1000-2.ucode' failed. [ 14.919391] iwlwifi 0000:01:00.0: request for firmware file 'iwlwifi-1000-1.ucode' failed. [ 14.919445] iwlwifi 0000:01:00.0: no suitable firmware found! [ 14.919783] iwlwifi 0000:01:00.0: PCI INT A disabled [ 2868.960807] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_idt rfcomm bnep bluetooth parport_pc ppdev binfmt_misc hid_logitech_dj usbhid hid joydev snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq hp_wmi sparse_keymap hp_accel lis3lv02d input_polldev snd_timer snd_seq_device wmi iwlwifi snd mac80211 i915 cfg80211 rts_pstor(C) drm_kms_helper drm uvcvideo videodev psmouse soundcore mei(C) v4l2_compat_ioctl32 mac_hid serio_raw snd_page_alloc i2c_algo_bit video lp parport atl1c

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• It is Wise to Buy High PR Backlinks

  With competition extending into the virtual world, it is necessary to make sure that websites are linked to other websites of high PageRank. This is vital because, it could enjoy the airs of being on the top by mere association with another credible website. The internet domain is now extended and offers scope for websites of high quality to be on the top forever

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• Advantages and disadvantages of building a single page web application

  - by ryanzec

  I'm nearing the end of a prototyping/proof of concept phase for a side project I'm working on, and trying to decide on some larger scale application design decisions. The app is a project management system tailored more towards the agile development process. One of the decisions I need to make is whether or not to go with a traditional multi-page application or a single page application. Currently my prototype is a traditional multi-page setup, however I have been looking at backbone.js to clean up and apply some structure to my Javascript (jQuery) code. It seems like while backbone.js can be used in multi-page applications, it shines more with single page applications. I am trying to come up with a list of advantages and disadvantages of using a single page application design approach. So far I have: Advantages All data has to be available via some sort of API - this is a big advantage for my use case as I want to have an API to my application anyway. Right now about 60-70% of my calls to get/update data are done through a REST API. Doing a single page application will allow me to better test my REST API since the application itself will use it. It also means that as the application grows, the API itself will grow since that is what the application uses; no need to maintain the API as an add-on to the application. More responsive application - since all data loaded after the initial page is kept to a minimum and transmitted in a compact format (like JSON), data requests should generally be faster, and the server will do slightly less processing. Disadvantages Duplication of code - for example, model code. I am going to have to create models both on the server side (PHP in this case) and the client side in Javascript. Business logic in Javascript - I can't give any concrete examples on why this would be bad but it just doesn't feel right to me having business logic in Javascript that anyone can read. Javascript memory leaks - since the page never reloads, Javascript memory leaks can happen, and I would not even know where to begin to debug them. There are also other things that are kind of double edged swords. For example, with single page applications, the data processed for each request can be a lot less since the application will be asking for the minimum data it needs for the particular request, however it also means that there could be a lot more small request to the server. I'm not sure if that is a good or bad thing. What are some of the advantages and disadvantages of single page web applications that I should keep in mind when deciding which way I should go for my project?

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• Apache2 Syntex, cant acces 000-default

  - by enrique2334

  I have been using Apache2 and webmin with my raspberry pi. after a restart and reinstalations apache wont start. > sudo /etc/init.d/apache2 restart apache2: Syntax error on line 268 of /etc/apache2/apache2.conf: Could not open configuration file /etc/apache2/sites-enabled/000-default: No such file or directory Action 'configtest' failed. The Apache error log may have more information. failed! The file 000-default is there and unopenable permisions to root-root My apache2.conf file looks like this (bottom half) # ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a <VirtualHost> # container, error messages relating to that virtual host will be # logged here. If you *do* define an error logfile for a <VirtualHost> # container, that host's errors will be logged there and not here. # ErrorLog ${APACHE_LOG_DIR}/error.log # # LogLevel: Control the number of messages logged to the error_log. # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. # LogLevel debug # Include module configuration: Include mods-enabled/*.load Include mods-enabled/*.conf # Include list of ports to listen on and which to use for name based vhosts Include ports.conf # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i # LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent # Include of directories ignores editors' and dpkg's backup files, # see the comments above for details. # Include generic snippets of statements Include conf.d/ # Include the virtual host configurations: Include sites-enabled/ <VirtualHost *:80> DocumentRoot /var/www <Directory /var/www> allow from all Options +Indexes </Directory> ServerName IMASERVER </VirtualHost> does anyone know what the cause of this?

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• How do I avoid spam domains pointing to my site or IP

  - by Amol Ghotankar

  I came across an issue where I saw some xyz.com is pointing to mydomain.com. How do I avoid spam domains pointing to my domain? I read some posts about setting my virtual hosts and such, but nothing specific about how to avoid it in the first place. I searched on Google but most answers are for HTTP servers and there are no exact answers for Tomcat 7. I am not using Apache or IIS, but Tomcat directly.

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• How to install Network Adapter Drivers for Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) Ubuntu 12.04

  - by Jessica Burnett

  How can I install drivers for 64-bit Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) for Ubuntu 12.04. I dual boot Windows7/Ubuntu 12.04 drivers work for 64-bit Windows 7. lspic -nn: 00:00.0 Host bridge [0600]: Intel Corporation Ivy Bridge DRAM Controller [8086:0154] (rev 09) 00:01.0 PCI bridge [0604]: Intel Corporation Ivy Bridge PCI Express Root Port [8086:0151] (rev 09) 00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) 00:14.0 USB controller [0c03]: Intel Corporation Panther Point USB xHCI Host Controller [8086:1e31] (rev 04) 00:16.0 Communication controller [0780]: Intel Corporation Panther Point MEI Controller #1 [8086:1e3a] (rev 04) 00:1a.0 USB controller [0c03]: Intel Corporation Panther Point USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) 00:1b.0 Audio device [0403]: Intel Corporation Panther Point High Definition Audio Controller [8086:1e20] (rev 04) 00:1c.0 PCI bridge [0604]: Intel Corporation Panther Point PCI Express Root Port 1 [8086:1e10] (rev c4) 00:1c.1 PCI bridge [0604]: Intel Corporation Panther Point PCI Express Root Port 2 [8086:1e12] (rev c4) 00:1c.3 PCI bridge [0604]: Intel Corporation Panther Point PCI Express Root Port 4 [8086:1e16] (rev c4) 00:1d.0 USB controller [0c03]: Intel Corporation Panther Point USB Enhanced Host Controller #1 [8086:1e26] (rev 04) 00:1f.0 ISA bridge [0601]: Intel Corporation Panther Point LPC Controller [8086:1e59] (rev 04) 00:1f.2 SATA controller [0106]: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] [8086:1e03] (rev 04) 00:1f.3 SMBus [0c05]: Intel Corporation Panther Point SMBus Controller [8086:1e22] (rev 04) 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:0de9] (rev a1) 02:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR8161 Gigabit Ethernet [1969:1091] (rev 08) 03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2200 [8086:0891] (rev c4) 04:00.0 System peripheral [0880]: JMicron Technology Corp. SD/MMC Host Controller [197b:2392] (rev 30) 04:00.2 SD Host controller [0805]: JMicron Technology Corp. Standard SD Host Controller [197b:2391] (rev 30) 04:00.3 System peripheral [0880]: JMicron Technology Corp. MS Host Controller [197b:2393] (rev 30) 04:00.4 System peripheral [0880]: JMicron Technology Corp. xD Host Controller [197b:2394] (rev 30) sudo lshw -c network *-network UNCLAIMED description: Ethernet controller product: AR8161 Gigabit Ethernet vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:02:00.0 version: 08 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix bus_master cap_list configuration: latency=0 resources: memory:d3a00000-d3a3ffff ioport:2000(size=128) *-network description: Wireless interface product: Centrino Wireless-N 2200 vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: c4 serial: 9c:4e:36:14:d4:7c width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-23-generic firmware=18.168.6.1 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:45 memory:d3900000-d3901fff I also tried Manually configuring wired connection. Nether wired or wireless connects

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• Display Resolution all wrong iin 12.04.1 running in VBox

  - by André Alçada Padez

  I have a Ubuntu 12.04.1 (64bits) system, running perfectly alongside Windows 7. I needed to create a Virtual Machine in VBox running the same 12.04.1 (64bits). I have a 15 inch notebook w/ NVidia Graphics, display running at 1920*1080 on the host system. installed the Guest Additions and restarted the VM Configured the VM for 128 MB (max) of memory for the graphics I can only configure the 4:3 display resolutions: 1280*960 / 1023*768 / 800*600 What can i do to be able to have 16/10 1920*1080?

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• Generic log analyzer that produces reports

  - by Eugene

  About 600 customers use our application. We have very detailed logs for everything that happens in the application, from changes in the data model, memory and CPU/GPU usage to clicks on the UI elements. We want to be able to parse the logs coming from these customers and analyze them to understand how users use our application and what happens internally in the application. Is there a log analyzer that can produce such reports automatically?

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• Adding interactive graphical elements to text-based browser game with HTML5

  - by st9

  I'm re-writing an old virtual world/browser based game. It is text and HTML form based with some static graphics. The client is HTML and JS. I want to introduce some interactive graphical elements to certain parts of the game, for example a 'customise character' page, with hooks to server side and local data storage. I want to use HTML5/JS, what is the best approach to designing the web-site? For example could I use Boilerplate and then embed these interactive elements in the page? Thanks

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• Advice for a getting a job in algorithmic trading - writing faster code

  - by Alex

  I am currently an intermediate Java developer working in the financial industry. I am considering trying to get into an algorithmic trading developer position. I am looking for any advice/resources that may help me obtain such a job. My naive initial thoughts are to concentrate on learning how to write faster, more memory efficient code whilst maintaining readability. Can anyone point me in the right direction of some useful resources for what I am aiming to achieve?

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• My 24HOP session

  - by NeilHambly

  Hello So was very exicited to have my 24HOP session on SQL Sever 2012 Memory Unfortunately I had the Demo gods decided that I should be paid a few visits.. and caused me to drop my connections for 10-15 minutes (several reboots later) I have attached the PPT slide (PDF) for those who want it I had to rush through the demo's as I lost 10-15 minutes and will redo this session as a camtasia recording to give this session again in one contigous recording The demo scripts will also be made available...(read more)

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• Oracle OpenWorld 2013 – Wrap up by Sven Bernhardt

  - by JuergenKress

  OOW 2013 is over and we’re heading home, so it is time to lean back and reflecting about the impressions we have from the conference. First of all: OOW was great! It was a pleasure to be a part of it. As already mentioned in our last blog article: It was the biggest OOW ever. Parallel to the conference the America’s Cup took place in San Francisco and the Oracle Team America won. Amazing job by the team and again congratulations from our side Back to the conference. The main topics for us are: Oracle SOA / BPM Suite 12c Adaptive Case management (ACM) Big Data Fast Data Cloud Mobile Below we will go a little more into detail, what are the key takeaways regarding the mentioned points: Oracle SOA / BPM Suite 12c During the five days at OOW, first details of the upcoming major release of Oracle SOA Suite 12c and Oracle BPM Suite 12c have been introduced. Some new key features are: Managed File Transfer (MFT) for transferring big files from a source to a target location Enhanced REST support by introducing a new REST binding Introduction of a generic cloud adapter, which can be used to connect to different cloud providers, like Salesforce Enhanced analytics with BAM, which has been totally reengineered (BAM Console now also runs in Firefox!) Introduction of templates (OSB pipelines, component templates, BPEL activities templates) EM as a single monitoring console OSB design-time integration into JDeveloper (Really great!) Enterprise modeling capabilities in BPM Composer These are only a few points from what is coming with 12c. We are really looking forward for the new realese to come out, because this seems to be really great stuff. The suite becomes more and more integrated. From 10g to 11g it was an evolution in terms of developing SOA-based applications. With 12c, Oracle continues it’s way – very impressive. Adaptive Case Management Another fantastic topic was Adaptive Case Management (ACM). The Oracle PMs did a great job especially at the demo grounds in showing the upcoming Case Management UI (will be available in 11g with the next BPM Suite MLR Patch), the roadmap and the differences between traditional business process modeling. They have been very busy during the conference because a lot of partners and customers have been interested Big Data Big Data is one of the current hype themes. Because of huge data amounts from different internal or external sources, the handling of these data becomes more and more challenging. Companies have a need for analyzing the data to optimize their business. The challenge is here: the amount of data is growing daily! To store and analyze the data efficiently, it is necessary to have a scalable and flexible infrastructure. Here it is important that hardware and software are engineered to work together. Therefore several new features of the Oracle Database 12c, like the new in-memory option, have been presented by Larry Ellison himself. From a hardware side new server machines like Fujitsu M10 or new processors, such as Oracle’s new M6-32 have been announced. The performance improvements, when using one of these hardware components in connection with the improved software solutions were really impressive. For more details about this, please take look at our previous blog post. Regarding Big Data, Oracle also introduced their Big Data architecture, which consists of: Oracle Big Data Appliance that is preconfigured with Hadoop Oracle Exdata which stores a huge amount of data efficently, to achieve optimal query performance Oracle Exalytics as a fast and scalable Business analytics system Analysis of the stored data can be performed using SQL, by streaming the data directly from Hadoop to an Oracle Database 12c. Alternatively the analysis can be directly implemented in Hadoop using “R”. In addition Oracle BI Tools can be used to analyze the data. Fast Data Fast Data is a complementary approach to Big Data. A huge amount of mostly unstructured data comes in via different channels with a high frequency. The analysis of these data streams is also important for companies, because the incoming data has to be analyzed regarding business-relevant patterns in real-time. Therefore these patterns must be identified efficiently and performant. To do so, in-memory grid solutions in combination with Oracle Coherence and Oracle Event Processing demonstrated very impressive how efficient real-time data processing can be. One example for Fast Data solutions that was shown during the OOW was the analysis of twitter streams regarding customer satisfaction. The feeds with negative words like “bad” or “worse” have been filtered and after a defined treshold has been reached in a certain timeframe, a business event was triggered. Cloud Another key trend in the IT market is of course Cloud Computing and what it means for companies and their businesses. Oracle announced their Cloud strategy and vision – companies can focus on their real business while all of the applications are available via Cloud. This also includes Oracle Database or Oracle Weblogic, so that companies can also build, deploy and run their own applications within the cloud. Three different approaches have been introduced: Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a Service (SaaS) Using the IaaS approach only the infrastructure components will be managed in the Cloud. Customers will be very flexible regarding memory, storage or number of CPUs because those parameters can be adjusted elastically. The PaaS approach means that besides the infrastructure also the platforms (such as databases or application servers) necessary for running applications will be provided within the Cloud. Here customers can also decide, if installation and management of these infrastructure components should be done by Oracle. The SaaS approach describes the most complete one, hence all applications a company uses are managed in the Cloud. Oracle is planning to provide all of their applications, like ERP systems or HR applications, as Cloud services. In conclusion this seems to be a very forward-thinking strategy, which opens up new possibilities for customers to manage their infrastructure and applications in a flexible, scalable and future-oriented manner. As you can see, our OOW days have been very very interresting. We collected many helpful informations for our projects. The new innovations presented at the confernce are great and being part of this was even greater! We are looking forward to next years’ conference! Links: http://www.oracle.com/openworld/index.html http://thecattlecrew.wordpress.com/2013/09/23/first-impressions-from-oracle-open-world-2013 SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: cattleCrew,Sven Bernhard,OOW2013,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Reminder: Totally Awesome and Totally Free Training SQL Server Training

  - by KKline

  One of the things that I enjoy about working for Quest Software is that we give back copiously to the community. From activities and offerings like SQLServerPedia , to our free posters mailed anywhere in North America (and don't forget the free hi-res PDFs for the rest of the world ), Don't forget that free DVDs of our virtual conferences featuring me, along with Buck Woody ( blog | twitter ) and Brent Ozar ( blog | twitter ) will be mailed anywhere in North America free of charge, now available...(read more)

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• Columnar Databases

  - by jchang

  Ingres just published a TPC-H benchmark for VectorWise , an analytic database technology employing 1) SIMD processing (Intel SSE 4.2), 2) better memory optimizations to leverage on-chip cache, 3) compression, 4) Column-based storage. Ingres originated as a research project at UC Berkeley (see Wikipedia ) in the 1970s, and has since become a commercially supported, open source database system. Apparently, Ingres project people later founded Sybase. So Ingres in a sense, is the grandfather (or perhap...(read more)

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