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Message-Id: <49448787@web.de> Date: Sun, 16 Dec 2007 20:11:33 +0100 From: devzero@....de To: Parag Warudkar <parag.warudkar@...il.com> Cc: Matt.Domsch@...l.com, hpa@...or.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH] [RFC] be more verbose when probing EDD > It does not look like this issue is common - googling for "Linux EDD Boot > hang" does not bring up relevant and recent results - in fact this post of > yours comes on top. i don`t wonder here - how should one know that it`s an edd problem if all he sees is a blank screen with a blinking cursor in the upper left ? so i assume, "Linux EDD Boot hang" isn`t the best term for searching here. i think, there is no universal search phrase - i found some references with different words (linux install, blank screen, blinking cursor....) some of them http://forums.suselinuxsupport.de/lofiversion/index.php/t61581.html http://suseforums.net/index.php?showtopic=1302 http://forums.suselinuxsupport.de/lofiversion/index.php/t3157.html http://www.linuxforums.org/forum/installation/73984-cant-boot-past-loading-kernel-fedora-4-a.html http://ubuntuforums.org/archive/index.php/t-146180.html http://ubuntuforums.org/showthread.php?t=450630 http://www.linuxquestions.org/questions/linux-software-2/grub-freezes-before-uncompressing-kernel-464619/ not sure if really all of them are the edd problem i have, but i`m quite sure for some of those. can provide more links if somebody likes. > Adding 3 printks for each such obscure problem would make it even more i wouldn`t call that problem obscure. i have seen this problem more than 5 times since that code is in linux. so it`s at least enough to discuss about even if no other person thinks it`s necessary :) just the fact that it`s not been discussed often (here or elsewhere) doesn`t mean, that it exist or that users come across that. it`s more that type of "mhh, let`s try linux instead of windows. oh, doesn`t boot. ok, let`s stay with windows then...". you don`t expect people like those posting the right question to the right forum, do you? > If there are known chipsets / BIOSes that have this problem - applying > quirks - something like this quirk for pmtmr [1]- (if they work this > early) or even special casing them with forced edd=off may be the right and more useful thing to do. mhh. i`m unsure. ok, i`m no kernel-hacker but there are so many variants of bios/hardware out there so blacklisting certain bios versions may be never more than half of a solution. roland > -----Ursprüngliche Nachricht----- > Von: "Parag Warudkar" <parag.warudkar@...il.com> > Gesendet: 16.12.07 18:34:48 > An: devzero@....de > CC: linux-kernel@...r.kernel.org, Matt.Domsch@...l.com, hpa@...or.com > Betreff: Re: [PATCH] [RFC] be more verbose when probing EDD > > On Sun, 16 Dec 2007, devzero@....de wrote: > > > > > - it seems there are buggy Bios implementations out there which have problems with EDD > > - your favourite distro may have set CONFIG_EDD=y|m , so EDD probe is on by default quite often nowadays. > > - setting "edd=off" when you get that hang on boot is _not_ obvious. > > It does not look like this issue is common - googling for "Linux EDD Boot > hang" does not bring up relevant and recent results - in fact this post of > yours comes on top. Further more there does not seem to be problems with > newer BIOSes so we would be irritating lot many users needlessly. > > Adding 3 printks for each such obscure problem would make it even more > complex to parse and make sense of the boot log - I, for example, already > dislike the mostly-useless-to-end-user stuff it spews on a normal boot. > > If there are known chipsets / BIOSes that have this problem - applying > quirks - something like this quirk for pmtmr [1]- (if they work this > early) or even special casing them with forced edd=off may be the right and more useful thing to do. > > [1] http://www.webservertalk.com/archive242-2006-3-1447442.html > > Parag > _______________________________________________________________________ Jetzt neu! Schützen Sie Ihren PC mit McAfee und WEB.DE. 3 Monate kostenlos testen. http://www.pc-sicherheit.web.de/startseite/?mc=022220 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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