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2013-04-10 08:13 <wpwrak> let's see what happens if i set kseg0 to write-through ...
2013-04-10 08:15 <wpwrak> kernel gets a little slower. good so far. now let's try IO ...
2013-04-10 08:17 <wpwrak> hmm, 10% out of 50% possible speedup. kinda disappointing :-(
2013-04-10 08:18 <wpwrak> crazy measures should have a more satisfying return
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2013-04-10 09:58 <hellekin>  Vote for wpwrak :)
2013-04-10 09:59 <whitequark> grrrr
2013-04-10 09:59 <whitequark> canada post can't seem to distinguish russia and uk
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2013-04-10 10:38 <larsc> I can understand when they mix up austria and australia, but how do you get the uk and russia confused?
2013-04-10 10:39 <whitequark> http://www.canadapost.ca/cpotools/apps/track/personal/findByTrackNumber?execution=e1s1 304599176765
2013-04-10 10:39 <whitequark> I have *no idea*
2013-04-10 10:58 <viric> whitequark: uk for ukraine, or for united kingdom?
2013-04-10 10:59 <whitequark> viric: united kingdom
2013-04-10 10:59 <viric> UK = United Kingdom = Royaume-Uni = RU = Russia
2013-04-10 11:00 <viric> could be that?
2013-04-10 11:00 <larsc> ...
2013-04-10 11:01 <viric> It's very usual to shorten Royaume-Uni to RU, (same in Catalan; Regne Unit = RU)
2013-04-10 11:02 <viric> and then you have UK for Ukraine too
2013-04-10 11:02 <viric> not that difficult to mix up :)
2013-04-10 11:03 <whitequark> ... indeed.
2013-04-10 11:03 <larsc> did you write RU in your address field?
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2013-04-10 11:04 <whitequark> larsc: it was "Russia".
2013-04-10 11:04 <viric> Russia is harder to mix up
2013-04-10 11:04 <whitequark> not impossible evidently :/
2013-04-10 11:05 * whitequark has run sloccount on gcc sources
2013-04-10 11:05 <larsc> but at least they can't say its your fault
2013-04-10 11:05 <whitequark> 2848901 gcc             ansic=1727123,ada=738502,cpp=247495,f90=85207,exp=16009, objc=14691,fortran=9895,ml=3007,sh=2446,awk=1880,pascal=1005,perl=913,asm=416,lex=200,haskell=112
2013-04-10 11:06 <whitequark> larsc: indeed.
2013-04-10 11:08 <whitequark> omg, the C lexer is... really really simple
2013-04-10 11:09 <viric> that put C in a quite safe position, among programming languages
2013-04-10 11:09 <whitequark> also, I wonder if anyone could explain the rationale of this:
2013-04-10 11:09 <whitequark>  /* Print GENERIC declaration (functions, variables, types) trees coming from the C and C++ front-ends as well as macros in Ada syntax.
2013-04-10 11:10 <whitequark> in the gcc-4.8.0/gcc/c-family/c-ada-spec.c.
2013-04-10 11:11 <whitequark> ... utf-32 string literals?
2013-04-10 11:11 <whitequark> ok let's not stare into the abyss any longer.
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2013-04-10 11:15 <larsc> better quite before it stares back into you?
2013-04-10 11:16 <whitequark> larsc: yes.
2013-04-10 11:16 * whitequark shudders at the very thought of 7.3MLOC of GCC staring at him.
2013-04-10 11:17 <larsc> :)
2013-04-10 11:17 <whitequark> there is something Lovecraftian about that. an ancient beast waking up from its eternal dream, only to cast a single stare and drive an innocent programmer on the verge of insanity
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2013-04-10 12:11 <wpwrak> see, better hurry and lose your innocence. then you're safe :)
2013-04-10 12:16 <whitequark> I wonder what would constitute losing innocence in the context of GCC...
2013-04-10 12:16 <whitequark> (also https://pp.vk.me/c410422/v410422132/82c0/Yt400Y9QKN4.jpg)
2013-04-10 12:18 <wpwrak> marvelous !
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2013-04-10 14:16 <whitequark> omg.
2013-04-10 14:18 <whitequark> a polite postal worker (!) who, having seen an attached paper which stated a weight difference (0.9kg vs 0.6kg) asked me to check the contents and said she'll help with paperwork if something's actually was missing
2013-04-10 14:18 <whitequark> (!!)
2013-04-10 14:19 <pcercuei> there are some nice people out there :)
2013-04-10 14:19 <wpwrak> s/polite/fake/ ? :)
2013-04-10 14:19 <whitequark> wpwrak: haha
2013-04-10 14:20 <whitequark> also they did not lost the parcel despite me writing the wrong zipcode
2013-04-10 14:20 <larsc> whitequark: you'll be on one of these hidden camera shows
2013-04-10 14:21 <whitequark> and, in a previous encounter with EMS (a subsidiary of the russian post), when I've had two parcels to receive and forgot to write the flat # on one of them, a courier who delivered the second one has remembered it and offered to redeliver
2013-04-10 14:22 <whitequark> I wonder if they're they still a government-sponsored organization?
2013-04-10 14:22 <wpwrak> larsc: he should go easy on these mind-altering drugs, particularly the strong ones
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2013-04-10 15:22 <whitequark> huh, 2/3 of connections are suddenly ECONNREFUSED. not sure if just crappy connection or malfunctioning censorship engine
2013-04-10 15:22 <whitequark> regardless, openvpn solves this :)
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2013-04-10 16:32 <viric> meh
2013-04-10 16:32 <viric> UBI error: ubi_read_volume_table: the layout volume was not found
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2013-04-10 16:39 <viric> oh the new qemu added a NAND to the default mips board
2013-04-10 16:40 <viric> Creating 3 MTD partitions on "physmap-flash.0":
2013-04-10 16:40 <viric> 0x000000100000-0x0000003e0000 : "User FS"
2013-04-10 16:40 <viric> 0x0000003e0000-0x000000400000 : "Board Config"
2013-04-10 16:40 <viric> 0x000000000000-0x000000100000 : "YAMON"
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2013-04-10 17:24 <kyak> wpwrak: spi-gpio-atben and spi_atben_gpio - i'm already lost :)
2013-04-10 17:25 <kyak> btw is there a naming convention for kernel modules at all?
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2013-04-10 17:31 <larsc> for some
2013-04-10 17:32 <larsc> e.g. some subsystems use a common prefix
2013-04-10 17:32 <larsc> like i2c-foobar
2013-04-10 17:37 <wpwrak> kyak: yeah, it's a little messy :) also, spi_atben is somewhat correct because it implements a SPI driver, but then spi_atben_gpio only puts things together
2013-04-10 17:38 <wpwrak> kyak: but i think spi_atben can die now. it was the very first one i wrote.
2013-04-10 17:38 <wpwrak> and spi_atben_gpio needs a less confusing name
2013-04-10 17:38 <wpwrak> spi-* are all real SPI drivers
2013-04-10 17:41 <kyak> is there a chance atben and atusb drivers will be accepted by upstream?
2013-04-10 17:42 <kyak> is it even something you want to do, or we don't really care?
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2013-04-10 17:45 <wpwrak> oh, i want them upstream. i don't expect undue difficulties. just need a bit more testing.
2013-04-10 17:46 <wpwrak> and atben has a bunch of at86rf230.c fixes it semi-depends on as well (as in "i already know it'll crash and burn before long if they're not there"). they sould probably go in first.
2013-04-10 17:47 <kyak> cool :)
2013-04-10 17:52 <wpwrak> of course, atben has the added issue that some things are missing in mainline for proper ben support. i do my development on a board without lcd, so i just applied the two patches i need to get at least that far. but that kernel probably has no lcd. and it also doesn't have USB.
2013-04-10 17:53 <wpwrak> (i flash directly via usb-boot, which is very easy if you have idbg)
2013-04-10 17:53 <wpwrak> (and can of course be the mother of all nightmares if you don't :)
2013-04-10 17:56 <kyak> do you mean that your driver might affect USB?
2013-04-10 17:59 <wpwrak> no, but the net-next kernel doesn't have the patch for the jz4740's USB device. so anything you build from that source will be a somewhat limited ben.
2013-04-10 17:59 <wpwrak> not sure where that driver is in the pipeline, if it's on the way into mainline at all
2013-04-10 18:00 <kyak> ok, now i understood :)
2013-04-10 18:01 <kyak> though i thought that most of the patches went upstream
2013-04-10 18:01 <kyak> except for partitions maybe
2013-04-10 18:26 <wpwrak> maybe it's somewhere in a tree that hasn't been merged yet. we have quite a number of patches in the qi-gw owrt repository that aren't in mainline. e.g., several NAND performance improvements.
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2013-04-10 18:54 <pcercuei> hmm
2013-04-10 18:55 <pcercuei> how can I stop a blocking read() call from a different thread?
2013-04-10 19:52 <larsc> kill the thread
2013-04-10 19:53 <larsc> or send any other signal
2013-04-10 19:53 <pcercuei> well, I tried that :)
2013-04-10 19:53 <pcercuei> pthread_kill(thd, SIGTERM)
2013-04-10 19:53 <pcercuei> doesn't stop the read() call :(
2013-04-10 19:54 <larsc> it should, at least if the signal is not blocked
2013-04-10 19:54 <pcercuei> well, SIGTERM should never be blocked, no?
2013-04-10 19:55 <larsc> SIGKILL is unblockable
2013-04-10 19:55 <larsc> SIGTERM is just like any other signal
2013-04-10 19:55 <pcercuei> hmmm
2013-04-10 19:55 <pcercuei> ok
2013-04-10 19:56 <larsc> it's also possible that your backend does a non-interruptible sleep
2013-04-10 19:56 <pcercuei> so I believe I just have to use sigaction()?
2013-04-10 19:56 <larsc> probably
2013-04-10 19:57 <larsc> or you just use poll and friends
2013-04-10 19:58 <pcercuei> polling would be a bit... dirty
2013-04-10 19:59 <larsc> no, poll()
2013-04-10 19:59 <larsc> a.k.a select()
2013-04-10 20:06 <pcercuei> larsc: sigaction() does affect the whole process, not only a thread
2013-04-10 20:07 <viric> pcercuei: I think you can close the fd
2013-04-10 20:08 <pcercuei> viric: oh, good idea
2013-04-10 20:08 <pcercuei> that would probably work
2013-04-10 20:27 <pcercuei> viric: doesn't work :(
2013-04-10 20:28 <pcercuei> calling close() on the file descriptor doesn't stop the read()
2013-04-10 20:29 <larsc> what are you reading on?
2013-04-10 20:30 <pcercuei> a file descriptor obtained with inotify_init()
2013-04-10 20:30 <viric> hm ok
2013-04-10 20:30 <viric> then I'm with lars
2013-04-10 20:30 <viric> select or signal
2013-04-10 20:32 <larsc> according to the code inotify_read is interruptible
2013-04-10 20:39 <pcercuei> that's why I don't understand why I can't interrupt it ;)
2013-04-10 20:40 <viric> interruptible means that on a signal it will unblock, no?
2013-04-10 20:40 <viric> maybe you have set SA_RESTART for SIGTERM ?
2013-04-10 20:41 <pcercuei> well, my code doesn't set it
2013-04-10 20:41 <viric> ok
2013-04-10 20:43 <viric> I never understood how threads and signals cope together though
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2013-04-10 21:14 <larsc> wpwrak: be careful if you ever want to buy a poodle
2013-04-10 21:14 <larsc> http://news.yahoo.com/blogs/sideshow/ferret-poodle-argentina-125901615.html
2013-04-10 21:23 <wpwrak> bwahaa. of course, he deserves it for buying at La Salada, the XXL market for fences (german "Hehler") and scammers.
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