Date: Fri, 05 Sep 2014 21:15:42 +0200 From: Piotr Kubaj <pkubaj@riseup.net> To: hiren panchasara <hiren@freebsd.org> Cc: freebsd-mips@freebsd.org Subject: Re: WR1043ND - too big kernel Message-ID: <540A0BDE.6040605@riseup.net> In-Reply-To: <CALCpEUEZH3RtBioJ4aWcwvvHiRm1Q_rrs4mXB320g0OgHJ%2BTWw@mail.gmail.com> References: <5408BB36.5060409@riseup.net> <5408BE6A.4050500@riseup.net> <5408CE14.2090809@riseup.net> <CALCpEUHK3aDv0b8FVafqwSOEzEdO16rdF7Oim2U3GcYw79yjgA@mail.gmail.com> <CALCpEUFPhZxsfwcQj3vZGVGfUEVNgvZBQR5oAxd%2BOm4Un14YNQ@mail.gmail.com> <CALCpEUEZH3RtBioJ4aWcwvvHiRm1Q_rrs4mXB320g0OgHJ%2BTWw@mail.gmail.com>
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[-- Attachment #1 --] On 09/05/2014 19:59, hiren panchasara wrote: > On Thu, Sep 4, 2014 at 2:27 PM, hiren panchasara <hiren@freebsd.org> wrote: >> On Thu, Sep 4, 2014 at 1:44 PM, hiren panchasara <hiren@freebsd.org> wrote: >>> On Thu, Sep 4, 2014 at 1:39 PM, Piotr Kubaj <pkubaj@riseup.net> wrote: >>>> Adding following lines to kernel config shrinks size to 1750991 (on >>>> releng/10.0): >>>> makeoptions INLINE_LIMIT=768 >>>> nomakeoptions DEBUG >>>> nomakeoptions ALQ >>>> nooptions INET6 >>>> options NO_SWAPPING >>>> nooptions HWPMC_HOOKS >>>> nodevice hwpmc >>>> nodevice hwpmc_mips24k >>>> nooptions KDB >>>> >>>> Any ideas what else I can remove? :P >>> >>> I see you already have r255656. >>> Let me try to build for -head and see. >> >> >>> [mktplinkfw] *** error: kernel image is too big. Max[1572352] kernel img [2000794] >> >> ugh. Need to trim more. I'll see if I can find time this week to check >> where/what we can trim. > > Randomly disabled a ton of things and then I could create small enough > kernel. I'm not even sure if things will actually work. > > We've grown too big, it seems :-( > > Diffs against -head. > > Index: sys/mips/conf/TP-WN1043ND > =================================================================== > --- sys/mips/conf/TP-WN1043ND (revision 271137) > +++ sys/mips/conf/TP-WN1043ND (working copy) > @@ -16,7 +16,7 @@ > options AR71XX_REALMEM=32*1024*1024 > > # i2c GPIO bus > -device gpioiic > +#device gpioiic > device iicbb > device iicbus > device iic > @@ -28,7 +28,7 @@ > device rtl8366rb > > # read MSDOS formatted disks - USB > -options MSDOSFS > +#options MSDOSFS > > # Enable the uboot environment stuff rather then the > # redboot stuff. > @@ -57,3 +57,29 @@ > nooptions WITNESS_SKIPSPIN > nooptions DEBUG_REDZONE > nooptions DEBUG_MEMGUARD > + > +nooptions DDB > +nooptions KDB > +nooptions ALQ > +nooptions HWPMC_HOOKS > +nodevice hwpmc > +nodevice hwpmc_mips24k > +nooptions INET6 #InterNETworking > + > +nooptions ATH_DEBUG > +nooptions AH_DEBUG > +nooption AH_DEBUG_ALQ > +nooptions IEEE80211_DEBUG > +nooptions IEEE80211_SUPPORT_MESH > +nooptions IEEE80211_SUPPORT_TDMA > +nooptions IEEE80211_ALQ # 802.11 ALQ logging support > + > +nodevice usb > +nooptions USB_EHCI_BIG_ENDIAN_DESC > +nooptions USB_DEBUG > +nooptions USB_HOST_ALIGN > +nodevice umass > +nodevice ehci > + > +nodevice gpio > +nodevice gpioled > I could've done it myself, but I need usb and GPIO is required for usb, so that needs to stay. That said, I removed PSEUDOFS (I don't need /proc) and some of what you mailed, so now it's smaller, but still too large (1682325). Here are the contents (still on releng/10.0) # Force the board memory - 64mb options AR71XX_REALMEM=64*1024*1024 makeoptions INLINE_LIMIT=768 nomakeoptions DEBUG nomakeoptions ALQ nooptions INET6 options NO_SWAPPING nooptions HWPMC_HOOKS nodevice hwpmc nodevice hwpmc_mips24k nooptions USB_DEBUG nooptions IEEE80211_DEBUG nooptions PSEUDOFS nooptions ATH_DEBUG nooptions AH_DEBUG nooption AH_DEBUG_ALQ nooptions IEEE80211_SUPPORT_MESH nooptions IEEE80211_SUPPORT_TDMA nooptions IEEE80211_ALQ # 802.11 ALQ logging support # i2c GPIO bus device gpioiic device iicbb device iicbus device iic # ethernet switch device device etherswitch # RTL8366RB support device rtl8366rb # Enable the uboot environment stuff rather then the # redboot stuff. options AR71XX_ENV_UBOOT # uncompress - to boot natively from flash device geom_uncompress options GEOM_UNCOMPRESS # Used for the static uboot partition map device geom_map # Boot off of the rootfs, as defined in the geom_map setup. options ROOTDEVNAME=\"ufs:map/rootfs.uncompress\" # We bite the performance overhead for now; the kernel won't # fit if the mutexes are inlined. options MUTEX_NOINLINE options RWLOCK_NOINLINE options SX_NOINLINE # Remove everything we don't need. We need a _really_ small kernel! nooptions INVARIANTS nooptions INVARIANT_SUPPORT nooptions WITNESS nooptions WITNESS_SKIPSPIN nooptions DEBUG_REDZONE nooptions DEBUG_MEMGUARD nooptions DDB nooptions KDB It doesn't need to be much smaller now, but what made it so large? Why did it work a year ago with 10.0-CURRENT? Since 10.0-RELEASE is too large and there are working images with 10.0-CURRENT from August 2013 at http://www.strugglingcoder.info/pkgs/TP-WN1043ND.factory.bin (it seems to be actually generated by you), something must have happened then and later, when CURRENT went up to 11. 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