#qi-hardware IRC log for Wednesday, 2012-08-22

virichm my pc still hangs from time to time. specially after suspend06:37
viricAny kernel dev has any idea of what can I do? sysrq doesn't work at all, when it hangs.06:37
viricI tried both softlockup and hardlockup catching mechanisms06:37
viric(that's x86, I tried the nmi watchdog)06:37
viricThey work well (NMI counter increasing). I use idle=poll, so all counters get a steady rythm.06:38
viricIf it were a 'panic', I use the crashkernel option. That'd launch another kernel.06:39
viricah no wonder. it's failing. damn kexectools07:53
wolfspraulviric: we are all in some weird trouble. I just ran gprof which promply hung my entire machine after several weeks of uptime... nice :-)08:18
viricI wrote to the kexectools mailing list.08:19
wolfspraulI'll move on to perf or valgring, the funny (c) 1992 fsf that comes with gprof is also not entirely convincing :-)08:19
viricI know that kernel developers *know* how to get useful information of crashing situations... but that's not 'common knowledge' about gnu/linux users :)08:19
viricwolfspraul: I always went to oprofile/perf/callgrind. I never used gprof much08:20
viricAnd those in the field of embedded linux programming, often neglect applying the same principles to workstation linux debugging08:21
viric(at least, in my picture of those :)08:21
wpwraki kinda doubt that hang was gprof's fault :)08:35
wolfsprauloh I squarely blame gprof, just for the heck of it :-)08:35
wolfspraulnow using perf... looks much better08:35
viricyes, gprof shuouldn't hang anything08:47
whitequarkviric: dtrace?09:01
whitequarkit has been ported to linux09:01
viricis it in mainline?09:07
viricthat only allows setting probes like ftrace, no?09:07
viricor systemtap in general09:07
viricI'll see how far I go with netconsole, meanwhile kexectools fail.09:07
viricbecause of course I even don't know if the kernel is aware of the crash.09:08
kristianpaulwpwrak, hi !14:02
kristianpaulI want introduce a friend to boom14:02
kristianpaulbesides your fisl presentation there is a project website or such?14:03
wpwrakno, not yet. boom still is work-in-progress.14:34
wpwrakof course, the best source for information is the source ;-) there are also some examples in the regression tests14:35
wpwrakbut as i said, it's not finished yet. i.e., it can't generate a "shopping list" for now14:36
roh   15:26
DocScrutinizer05wpwrak: you might be interested in http://www.ti.com/lit/an/sprabb3/sprabb3.pdf15:27
DocScrutinizer05(about PCB design)15:28
qi-bot[commit] Werner Almesberger: poly2d/: try to work around spurious aborts in CGAL::create_interior_skeleton_and_offset_polygons_with_holes_2 (master) http://qi-hw.com/p/cae-tools/53fe70916:53
qi-bot[commit] Werner Almesberger: cameo/fped2d2z.pl: new option -t Zmax to set the height of the workpiece (master) http://qi-hw.com/p/cae-tools/c73509d16:53
DocScrutinizer05wpwrak: was that you who aslked about VIP?17:30
DocScrutinizer05(via in pad)17:31
GNUtooVIP? Very important programmer?17:36
GNUtooah ok17:37
qi-bot[commit] Werner Almesberger: modules/: add E-SWITCH series 320 tact switch (master) http://qi-hw.com/p/kicad-libs/92b939119:34
wpwrakDocScrutinizer05: (VIP) hmm ... possible. but i forgot the context :)19:35
DocScrutinizer05context: PCB layout21:56
wpwrakyeah, that much is clear ;-)22:04
DocScrutinizer05thought as much22:47
DocScrutinizer05however infobot down is an issue right now to me22:48
DocScrutinizer05IRC allone should make my living22:49
wpwrakliving off IRC ;-)23:06
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