More Bugs: depmod segfaults on FC5, agrrrr!

http://konstantin.antselovich.com/archives/2006/08/17/more-bugs-depmod-segfaults-on-fc5-agrrrr/ Fedora bug #202927 depmod segfaults So, me fighting irq kernel bug (see my previous post). I went to kernel.org, got a stock kernel, build it, tried to install : /sbin/depmod -e -F System.map 2.6.17.8 WARNING: Module /lib/modules/2.6.17.8/kernel/net/ipv4/netfilter/ipt_DSCP.ko is not an elf object …. some stuff skipped …. Segmentation fault Nice! Apearantly, depmod segfaults after looking at /lib/modules/$kernel_verion/updates strace output: open("/lib/modules/2.6.17.8/updates", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOENT (No such file or directory) -– SIGSEGV (Segmentation fault) @ 0 (0) — +++ killed by SIGSEGV +++ ...

More Bugs -- IRQ11 nodoby cared

http://konstantin.antselovich.com/archives/2006/08/14/more-bugs-irq11-nodoby-cared/ Fedora bug #202567 “irq 11 nobody cared” I encuntered an annoying bug after I upgraded from Fedora Core 4 to Fedora Core 5. The result of this bug is that after X server restart or switching to a console or after suspend-resume USB, Sound and Network does not work any more. It happens because kernel disables IRQ that mentioned hardware uses to get CPU’s attention. Hopes that it will be fixed soon. ...

CPU Load: Firefox vs Opera vs MS IE

http://konstantin.antselovich.com/archives/2005/06/18/firefox-104-vs-opera-80-vs-internet-explorer-60/ Till yesterday I was yet another one very happy FireFox user. Recently I started to notice that Firefox leads to very high CPU load when you open a lot of tabs. But yesterday I got the real firefox killer. It came from IBM as information portal for Linux on Power architecture. Everyone is welcome to click on this page http://openpowerproject.org/us/index.php and watch how your CPU load goes through the roof. Lets analize it a bit further. Here are the screen shots of that page opened in Opera and MS IE 6.0 and the third screen shot shows CPU load that Opera and IE take to display that page. (for IE, look at ‘wine-preloader’ process, because I have IE running under wine on Linux.) MS IE 6.0 | Opera 8.0 | ...

Fedora, going from 3 to 4

http://konstantin.antselovich.com/archives/2005/06/17/fedora-going-from-3-to-4/ Recently I upgraded my main working machine from Fedora Core 3 to Fedora Core 4 using yum. It was actually an easy thing to do, because I found very good instruction from Brandon Hutchinson. However, not everything went smoothly … At first, yum upgrade failed with a message that it cannot resolve a dependency around few packages, libFLAC.so.4 was the cause. As the work around I went to Fedora Core download mirror “near you”, got a package containing file that caused troubles and installed it with --nodeps option. Impressions: I would call it Fedora 3.5, not Fedora 4… It has many upgraded applications, most noticeable would be Gnome 2.10 and OpenOffice 2.0. With OpenOffice I had an issue: I was running a 2.0 version of OpenOffice already, but when I fired up version shipped with FC4 I discovered that OpenOffice Base lacked 2 pretty important database drives: JDBC and SDBS. (and maybe other too, I didn’t check). So, if anyone needs a database connectivity from OpenOffice, please uninstall Fedora OpenOffice packages. (you do with one line of code sudo nice -n -19 rpm -e $(rpm -qa | grep openoffice)). Then go OpenOffice 2.0 Download page and grab the current build and rpm -Uvh it. For desktop use I run custom kernels with improved-responsiveness patches from Con Kolivas, so I cannot really tell you what was changed in Fedora kernel since the latest FC3 kernel release. By the way, I discovered a segfault bug in vmstat utility. You can reproduce this bug by trying to check block IO on any LVM-based partition. vmstat -p /dev/VolumeGroup/LogicalVolume Other than that everything looks fine. Thank you Fedora! PS: I’m writing this after I came back from a presentation that Warren Togami (the guy who actually started Fedora project in the first place ) gave at US LUG (USC = University of Southern California, LUG = Linux Users Groups). It was actually a very nice presentation, at the end some people got cool little things from RedHat, including RedHat-branded bottles of water with a sign “Free as in Water” and one lucky guy got theat famost red hat! . Thank you Warren and Thank you Red Hat! ...

June 17, 2005 · Bugzz · 2 min