This is outside my area of expertise i work with the linux kernel core network stack and memory subsystem cannot solve your research problems ill share my interactions with annoying ifdefs. Go to the 2006 kernel summit coverage subscribers only for discussions on a number of topics, including summaries from various kernel minisummits, kernel quality and the development process, the ioctl interface, the kernel abi, software suspend, and kernel. Feb 25, 2019 add stephen and juergen on mon, feb 25, 2019 at 11. Fengguang wu found that an earlier version crashed on his tests. The inside story of an intel software quality award. Linux kernel performance tests shell 65 107 gnu general public license v2. Oracle linux 7 unbreakable enterprise kernel security update aarch64. Greetings, the below errors show up in both upstream and linux next. Toggle navigation patchwork linux ext4 filesystem development patches bundles about this project login. In proceedings of the 2017 11th joint meeting on foundations of software engineering esecfse 2017. Wu fengguang authored jan 07, 2009 this is to avoid name clashes for the introduction of a global swap macro.
Contribute to torvalds linux development by creating an account on github. Greetings, we get the below oom errors in our kvm boot tests and they are. Across thread and execution sampling for inhouse race detection. The linux kernel has done readahead for a long time, but that does not mean that it cannot be done better. It includes many capabilities, including fuzzer support. Fengguang wus research works university of science and. University of passau, germany publishers version preprint info atexrace. Linux test project ltp collection of tools for testing the linux kernel and related features started by sgi maintained by ibm, cisco, fujitsu, suse, red hat and others. Web help desk, dameware remote support, patch manager, servu ftp, and engineers toolset. The workaround for the expected failure is providing another failure. Approaches to performance can be considered either reactive or proactive. The presentation given by fengguang wu on day 1 of the 2012 kernel summit was about testing for build and boot regressions in the linux kernel. The linux developers had previously announced that 4.
Intel corporationuniversity of science and technology of china. This is intended for use with nvdimms that are physically persistent physically like flash so that they can be used as a costeffective ram replacement. Kedr provides runtime analysis of linux kernel modules including device drivers, file system modules, etc. Sergey senozhatsky, petr mladek fengguang wu fengguang. An updated linux kernel is available for oracle linux 7. See these phoronix articles wu fengguang and kosaki motohiro have published patches this week that they believe will address some of these responsiveness issues, for which they call the system goes unresponsive under memory pressure and lots of dirty. On the scalability of linux kernel maintainers work software. Toggle navigation patchwork linux kernel mailing list patches bundles about this project login. Toggle navigation patchwork linux v4ldvb mailing list. As linux runs an increasing variety of workloads, its inkernel prefetching algorithm has been challenged by. Software variability and software product lines for me, commonly know as ifdef challenges this is outside my area of expertise i work with the linux kernel core network stack cannot solve your research problems ill share my interactions with annoying ifdefs in hope to give insight into more problems to solve. Identifying productivity drivers by modeling work units using partial data. Oct 28, 2015 fengguang wu from intel told me that theyre using btrfs a bit on their autotest farm but often experience latency issues and we talked about using btrfs as dockers storage backend, everything seems perfect except each docker instance is an individual namespace so that theyre not able to share page caching for the same content.
Led by intel engineer fengguang wu, this zeroday security testing. Feng shui software make the most of your home and office. With all of these software tools, you have everything you need to effectively manage your small business. Sequential prefetching is a well established technique for improving io performance. Fengguang wu s 4 research works with 68 citations and 308 reads, including. Jul 18, 2006 the first day of the 2006 linux kernel summit was held on july 17 in ottawa. To provide more information about a project, an external dedicated website is created. On the design of a new linux readahead framework acm sigops.
In proceedings of the 10th workshop on hot topics in operating systems hotos, 2005. But in general we dont emit kernel messages when syscalls return failure. Create a project open source software business software. Led by intel engineer fengguang wu, this zeroday security testing system automatically and constantly run regression tests on the mainline kernel and over 400 linux developer trees.
Software variability and software product lines for me, commonly know as ifdef challenges. Hi john, the below lockup warning pops up very occasionally in kvm guest kernels and its bisected down to. Write and writeback user application kernel flusher thread dirty pages and writeout pages after immediately return dirty expired 30s avoid blocking. Patch 05 v4 allow persistent memory to be used like normal ram. I pulled your tree into linux next next20110415 on an i386 debian host.
University of science and technology of china, hefei. Patch 09 allow persistent memory to be used like normal. Never before has such powerful feng shui software been available to the public or feng shui professionals. In the presentation, fengguang described the test framework that he has established to detect and report these regressions in a more timely fashion.
Customer service customer experience point of sale lead management event management survey. Traffic volumes are immense, often reaching 10,000 messages in a week, and keeping up to date with the entire scope of development is a virtually impossible task for one person. Motivation of software developers in open source projects. China linux storage and file system clsf workshop 2015 report. Requires infrastructure both at hardware and software levels. To that end, fengguang wu has been working on a set of adaptive readahead patches for a. The patches from fengguang and motohiro can be found in this linux kernel mailing list thread. Rather than hacking around it, move espfix definitions into a proper header file.
Yuanhan liu, susie li, fleming feng, tim chen, fengguang wu, bob kasten. Linux test project, dave joness trinity quite effective lately automatedrecurring testing stephen rothwells next testing fengguang wus kbuild test robot see next slide frequent testing from many individuals and organizations tools. Evaluation and optimization of kernel file readaheads based on markov decision models. Patch 03 make mapped executable pages the first class citizen with test cases. Nov, 2017 led by intel engineer fengguang wu, this zeroday security testing system automatically and constantly run regression tests on the mainline kernel and over 400 linux developer trees. Bjorn helgaas when a process uses sysfs and tries to mmap more space than is available in a pci bar, we emit a warning and a backtrace. Enables linux to be scalable, not just a part of it. Metasploit software is used for identifying security issues. On the design of a new linux readahead framework acm. Sparse warns that the percpu variables arent declared before they are defined. Minghui zhou, qingying chen, audris mockus, and fengguang wu. The linux kernel mailing list comprises the core of linux development activities. This establishes a clear link between 01 and the project, and help to have a stronger presence in all internet. On the scalability of linux kernel maintainers work proceedings of.
Fengguang wu subject patch pssproportional set size accounting in smaps. Rik van riel, andrew morton linux, jan kara, li, shaohua, christoph hellwig, dave chinner, theodore tso, chris mason. The mmap fails anyway, so the backtrace is mainly for debugging. Updated for 2020, year of the yang metal rat geng zi would you like to perform your own professional feng shui consultation and print out over 70 pages of personalised reports and charts. Jan 24, 2019 from dave hansen to linuxkernelatvger subject. Unbreakable enterprise kernel security update for oracle linux 7.1130 1063 1191 67 393 705 1242 474 386 704 604 1290 787 261 1501 183 955 1415 226 736 169 1152 309 213 828 1377 957 832 922 871 209 980 1150 553 834 1220