2014-09-21 00:02 nicksydney has quit [Remote host closed the connection] 2014-09-21 00:40 atommann has joined #qi-hardware 2014-09-21 01:41 atommann has quit [Ping timeout: 272 seconds] 2014-09-21 02:57 atommann has joined #qi-hardware 2014-09-21 03:19 wpwrak: sounds about right, yes. 2014-09-21 03:20 particularly when you talk about ETB/ETM with all the hw-triggers and funnel and whatnot stuff associated 2014-09-21 03:21 but for the power it offers, this stuff asks a price in complexity 2014-09-21 03:26 aside from my polish colleague at ST-M being the one to develop proprietary solution for ETM, I also had a look into that stuff for myself in private, since that colleague's task gave me the idea of implementing something similar like that "ETB local loopback" for linux. Finally I found out there's already some project aiming at exactly that 2014-09-21 03:29 "post mortem" backtrace of last several 1000s of branch instructions (and obviously all the unconditional linear code in between), plus maybe even data trace for all writes, all incl timestamps, and "for free" from a performance POV. Sounds like mad useful 2014-09-21 03:31 especially when you don't need that damn debug hw IF with its proprietary "JTAG" and high speed databus or whatever it is, but can do this on *any* ARM Cortex core (which has ETM IP) 2014-09-21 03:33 indeed the documentation isn't really welcoming you, learning curve is pretty steep 2014-09-21 03:33 atommann has quit [Ping timeout: 258 seconds] 2014-09-21 03:34 heck, even ARM assembler code is indigestible, particularly when your compiler optimizes the hell out of source code, moving around and swaping and inverting whole sections of code 2014-09-21 03:36 more often than you'd like to, you find some code doing something en passant that maybe is needed 150 lines of sourcecode later, or been in relation to a sourcode line 150 lines earlier and not been neeeded until now 2014-09-21 03:37 atommann has joined #qi-hardware 2014-09-21 03:42 xiangfu has joined #qi-hardware 2014-09-21 03:42 when you think you could find a few bits of your 'if then else' in code so you understand what it's just doing... forget it, the assembler code structure often has not the faintest similarities with what you wrote in a high level language 2014-09-21 04:48 wpwrak: only loosely on topic, but at least funny they mention ETM and *MUSB* as an example ;-) http://elinux.org/images/d/d7/Elc2011_gadiyar.pdf 2014-09-21 04:50 wpwrak: I'm sure you already found http://lxr.free-electrons.com/source/arch/arm/kernel/etm.c 2014-09-21 06:01 atommann has quit [Ping timeout: 272 seconds] 2014-09-21 07:16 atommann has joined #qi-hardware 2014-09-21 07:56 viric has quit [Ping timeout: 272 seconds] 2014-09-21 08:01 viric has joined #qi-hardware 2014-09-21 08:04 wej_ has joined #qi-hardware 2014-09-21 08:05 wej has quit [Ping timeout: 250 seconds] 2014-09-21 08:59 xiangfu_ has joined #qi-hardware 2014-09-21 09:05 wej has joined #qi-hardware 2014-09-21 09:06 wej_ has quit [Ping timeout: 250 seconds] 2014-09-21 09:33 viric has quit [Ping timeout: 246 seconds] 2014-09-21 10:24 wej has quit [Ping timeout: 250 seconds] 2014-09-21 10:26 wej has joined #qi-hardware 2014-09-21 10:49 rz2k has joined #qi-hardware 2014-09-21 11:22 viric has joined #qi-hardware 2014-09-21 11:35 pcercuei has joined #qi-hardware 2014-09-21 11:49 xiangfu_ has quit [Remote host closed the connection] 2014-09-21 11:49 xiangfu has quit [Remote host closed the connection] 2014-09-21 11:57 atommann has quit [Ping timeout: 258 seconds] 2014-09-21 12:04 atommann has joined #qi-hardware 2014-09-21 12:41 DocScrutinizer05: hah, nothing like ETB/ETM. it's much simpler: new chip arrived as "secure". if it's "secure" you can't debug or program it, but you may still be able to do a mass-erase. it says mass-erase is allowed. so i tried to do that. 2014-09-21 12:42 but ... it doesn't take the command. doesn't ack it. so i went through all the layers to see if any of them had complains, if i had gotten any of the many configuration and control bits wrong, etc. 2014-09-21 12:43 atommann has quit [Ping timeout: 260 seconds] 2014-09-21 12:45 but i can't find any flaw in what i'm doing. the core is in reset. i tried the debug domain power up process in all possible variations, etc., checked acks and errors at all three layers involved, and so on. nothing. 2014-09-21 12:45 wpwrak: have you complained to the vendor? 2014-09-21 12:46 occasionally, it works really well 2014-09-21 12:52 i'm not sure they can be of much help. i went through all the resources (fora, gdb source, etc.), where these problems are being discussed. and it seems that i'm doing everything right. in fact, there are several areas i address that nobody else seems to mention when struggling with this specific problem. 2014-09-21 12:56 perhaps it's a counterfeit chip? 2014-09-21 12:57 i mean, someone i know had similar questions for ti, and eventually they asked him to send the chip back and in a week or two added an errata :D 2014-09-21 12:58 pretty unlikely. a) it comes from digi-key, b) the chip right next to it on the cut tape works fine, c) besides not accepting the mass erase it seems to work fine 2014-09-21 12:58 (errata) hehe :) lemme check if they have an update on these ... 2014-09-21 12:59 of course, having to send my board around wouldn't be such a great thing for me 2014-09-21 12:59 whee, seems that today officially spring started ! :) 2014-09-21 12:59 huh? 2014-09-21 12:59 spring? 2014-09-21 13:00 oh right southern hemisphere 2014-09-21 13:00 ;-) 2014-09-21 13:02 do you really call it "spring"? 2014-09-21 13:03 hmm no, no new errata 2014-09-21 13:03 well, "primavera" in spanish :) 2014-09-21 13:05 that means that fall started here :( 2014-09-21 13:07 so it's really "spring".. i thought season names are tied to months worldwide 2014-09-21 13:07 no matter what seasons it feels like 2014-09-21 13:09 no, in the southern hemisphere winter is in july/august and summer is in december/january 2014-09-21 13:11 kyak: now that sounds odd 2014-09-21 13:11 snow in summer, heatwaves in winter. NAH! 2014-09-21 13:11 it sounds ok for winter/summer.. but for spring/autumn - dunno :) 2014-09-21 13:13 Autumn, Summer, Spring, Winter then? 2014-09-21 13:14 rz2k has quit [Ping timeout: 272 seconds] 2014-09-21 13:14 well, given the sun also runs "the wrong way round" on southern hemisphere, it might actually sound correct when seasons also run backwards ;-P 2014-09-21 13:16 so if one cleverly organizes their position, it's possible to achieve eternal summer 2014-09-21 13:16 s/position/location 2014-09-21 13:16 whitequark meant: "so if one cleverly organizes their location, it's possible to achieve eternal summer" 2014-09-21 13:18 go to Colombia 2014-09-21 13:18 eternal summer there 2014-09-21 13:18 DocScrutinizer05: the sub still rises in the east and sets in the west, even here in the south ;-) 2014-09-21 13:18 I know 2014-09-21 13:19 you even ruined the compass ;-P 2014-09-21 13:19 suN even. we have many miracles, but no flying submarines just yet :) 2014-09-21 13:20 yeah, mueacles like sun from north in the noon 2014-09-21 13:20 miracles* 2014-09-21 13:21 on more than half of the planet, that's something entirely normal to experience every year 2014-09-21 13:23 here, we have it at least always in the north. not sneaking behind our backs and shining from the south. something our northern comrades have to endure :) 2014-09-21 13:46 figure poles! ;-D 2014-09-21 13:46 sun from any arbitrary direction 2014-09-21 13:47 a NIGHTMARE! ;-P 2014-09-21 13:47 only mildly mitigated by a 6 months of contiguous night, which I'd adore a lot 2014-09-21 13:56 rz2k has joined #qi-hardware 2014-09-21 14:02 atommann has joined #qi-hardware 2014-09-21 14:09 viric has quit [Ping timeout: 240 seconds] 2014-09-21 14:14 viric has joined #qi-hardware 2014-09-21 14:37 uselessd: fork of systemd which tries to make it somewhat sane - http://uselessd.darknedgy.net/ :) 2014-09-21 14:38 FrankBlues has joined #qi-hardware 2014-09-21 15:06 atommann has quit [Quit: Leaving] 2014-09-21 15:08 I saw this earlier today. Looks interesting, definitely 2014-09-21 15:09 what would look interesting is a bonfire 2014-09-21 15:10 ? 2014-09-21 15:10 :) 2014-09-21 15:10 burn, code burn 2014-09-21 15:11 code, flesh, etc 2014-09-21 15:11 bonefire 2014-09-21 15:17 FrankBlues has quit [Remote host closed the connection] 2014-09-21 15:20 mth has joined #qi-hardware 2014-09-21 15:45 dos1: http://xkcd.com/927/ 2014-09-21 15:45 viric has quit [Ping timeout: 245 seconds] 2014-09-21 15:46 DocScrutinizer05: this strip is actually indirectly referenced on that page :) 2014-09-21 15:46 "Wasn’t there a famous and overused comic involving stick figures on the folly of standardization?... Nah, couldn’t be." :D 2014-09-21 15:47 nice chess opening though. Finally somebody not only criticises but actually shows that stuff could have done better 2014-09-21 15:47 dos1: that's how I found it ;-D 2014-09-21 15:49 (done better) IOW: expose incompetence of systemd cabal 2014-09-21 15:49 redhat should get nuked 2014-09-21 15:50 viric has joined #qi-hardware 2014-09-21 15:51 maybe drop canonical on it, from 10000 km height 2014-09-21 15:53 canonical as a kinetic weapon 2014-09-21 15:55 viric_ has joined #qi-hardware 2014-09-21 15:57 viric has quit [Ping timeout: 258 seconds] 2014-09-21 15:57 viric_ is now known as viric 2014-09-21 16:19 ooh, it will have enough kinetic energy when falling down from 10'000km altitude, I'd hope 2014-09-21 16:21 not much more than from 1000km, say 2014-09-21 16:21 inverse square law and all that 2014-09-21 16:53 yeah, probably true 2014-09-21 16:54 maybe we need to shoot canonical around the moon for a nice lil slingshot maneuver to gain some 20km/s speed 2014-09-21 16:56 might take a year til impact at redhat, when we accelerate it contrary to the earth's vector around the sun 2014-09-21 16:56 actually prolly only 6 months 2014-09-21 18:00 fmeerkoetter has joined #qi-hardware 2014-09-21 18:10 fmeerkoetter has quit [Ping timeout: 250 seconds] 2014-09-21 18:23 fmeerkoetter has joined #qi-hardware 2014-09-21 18:28 kristianpaul has quit [Ping timeout: 260 seconds] 2014-09-21 18:29 fmeerkoetter has quit [Ping timeout: 250 seconds] 2014-09-21 18:30 kristianpaul has joined #qi-hardware 2014-09-21 18:30 kristianpaul has joined #qi-hardware 2014-09-21 19:28 fmeerkoetter has joined #qi-hardware 2014-09-21 20:03 fmeerkoetter has quit [Ping timeout: 250 seconds] 2014-09-21 21:07 pcercuei is now known as p 2014-09-21 21:07 p is now known as zcrc 2014-09-21 21:13 rz2k has quit [] 2014-09-21 21:26 porchao has joined #qi-hardware 2014-09-21 21:31 newcup has quit [Ping timeout: 272 seconds] 2014-09-21 21:31 porchaso0 has quit [Ping timeout: 272 seconds] 2014-09-21 21:31 rozzin has quit [Ping timeout: 272 seconds] 2014-09-21 21:38 rozzin has joined #qi-hardware 2014-09-21 21:46 https://www.indiegogo.com/projects/axiom-beta-the-first-open-digital-cinema-camera 2014-09-21 21:49 nicksydney has joined #qi-hardware 2014-09-21 22:43 zcrc has quit [Quit: dodo] 2014-09-21 23:53 viric has quit [Ping timeout: 260 seconds] 2014-09-21 23:57 viric has joined #qi-hardware