**** BEGIN LOGGING AT Wed Dec 14 02:59:57 2011
**** ENDING LOGGING AT Wed Dec 14 06:20:29 2011

**** BEGIN LOGGING AT Wed Dec 14 06:22:15 2011
Dec 14 09:49:37 <Tequila> hello, I just released my work on a multiboot firmware for the Toshiba AC100 based on tegra 2 chip
Dec 14 09:50:18 <Tequila> You may want to check my pull on https://gitorious.org/~tequila/ac100/tequilas-ac100-multiboot
Dec 14 09:51:06 <Tequila> I had to modify a little kexecboot to make it useful for ac100 device
Dec 14 09:52:11 <Tequila> Patch is there: https://gitorious.org/~tequila/ac100/tequilas-ac100-multiboot/blobs/master/patches/kexecboot-122708bc.patch
Dec 14 09:52:38 <Tequila> with a readme at the end to explain why I made these modifications
Dec 14 10:01:01 <Jay7> Tequila: thanks
Dec 14 10:01:35 <Tequila> hey Jay7, thanks to you and your work ;)
Dec 14 10:01:54 <Jay7> I'll review this and mainline your patches
Dec 14 10:02:19 <Tequila> I think you may want to adapt it at little
Dec 14 10:02:51 <Tequila> the main limitation is the 256 bytes cmdline limit
Dec 14 10:02:58 <Jay7> I see
Dec 14 10:03:15 <Tequila> and the second the forced "root="
Dec 14 10:03:44 <Jay7> you may override root in your config file
Dec 14 10:04:09 <Jay7> second one should win
Dec 14 10:04:22 <Tequila> hum okay
Dec 14 10:04:42 <Jay7> btw, did kernel sources for toshiba define COMMAND_LINE_SIZE somewhere?
Dec 14 10:04:46 <Tequila> I remember the 256 bytes limitation made me think the root= was forced...
Dec 14 10:05:30 <Tequila> arm do it and the limitation is 1024
Dec 14 10:05:44 <Jay7> no, 'root=' is just first item in cmdline passed to kexec
Dec 14 10:06:33 <Jay7> btw, what is root for toshiba?
Dec 14 10:06:39 <Tequila> yes of course, I lost time to find the 256 limitations and I did the root= related patch before
Dec 14 10:06:45 <Jay7> and why it doensn't detected properly?
Dec 14 10:06:57 <Tequila> no it is detected properly
Dec 14 10:07:13 <Tequila> my real trouble was the 256 bytes limitation
Dec 14 10:07:16 <Jay7> ah
Dec 14 10:07:27 <Tequila> only that fianally ;)
Dec 14 10:07:46 <Jay7> try just increase default COMMAND_LINE_SIZE then in util.h
Dec 14 10:07:51 <Tequila> you may forget the patch related to root= part
Dec 14 10:08:16 <Jay7> ok :)
Dec 14 10:08:37 <Tequila> of course, this should have been a simple fix
Dec 14 10:09:05 <Jay7> hehe :)
Dec 14 10:09:29 <Jay7> we should consider to increase it by default
Dec 14 10:09:40 <Tequila> but I prefered a more flexible solution
Dec 14 10:10:26 <Tequila> in my patch this becomes just a buffer size limit to read lines from conf and /proic/cmdline
Dec 14 10:16:23 <Jay7> Tequila: btw, is GUI working ok on Toshiba?
Dec 14 10:17:29 <Tequila> no...
Dec 14 10:17:34 <Tequila> it is just perfect ;)
Dec 14 10:17:43 <Jay7> fine :)
Dec 14 10:18:11 <Tequila> I just modified the "KEXECBOOT" string in gui.c
Dec 14 10:18:27 <Tequila> to extend it
Dec 14 10:18:28 <Jay7> I see.. I'm thinking about making this configurable too..
Dec 14 10:18:52 <Tequila> It would be really nice
Dec 14 10:19:49 <Jay7> anyway, I would ask you about testing kexecboot just with increased default COMMAND_LINE_SIZE in util.h
Dec 14 10:19:57 <Jay7> or even with default
Dec 14 10:20:26 <Jay7> if kernel headers provide right C_L_S it should work out of the box
Dec 14 10:30:28 <Tequila> well as it is cross-compiled, I confirm it doesn't find the right value
Dec 14 10:30:52 <Tequila> I really saw truncated cmdlines when I started to test
Dec 14 10:31:36 <Tequila> and kernels didn't boot correctly until I extended the used buffer
Dec 14 10:36:58 <Tequila> oups, in fact we really don't mind about COMMAND_LINE_SIZE in util.h as a short default one is sufficient for the ac100
Dec 14 10:39:16 <Tequila> btw we can also specify a cmdline to have debug output on the screen during the used kernel boot...
Dec 14 10:40:13 <Tequila> but effectively I've to check if finally it takes the 1024 value
Dec 14 10:40:37 <Tequila> so I'll put that test on on my TODO list...
Dec 14 10:41:53 <Tequila> so to resume, at that time, only the 256 bytes limitation to read boot.cfg file lines is really critical for us
Dec 14 10:45:20 <Jay7> ok
Dec 14 10:45:35 <Jay7> we will consider to increase this default to 1024
Dec 14 10:45:55 <Tequila> and just an info if you have someone asking how our tegra can kexec with a 2.6.38 based kernel
Dec 14 10:47:02 <Tequila> I essentialy delayed D-cache disabling and disabled SMP & THUMBEE
Dec 14 10:47:54 <Jay7> so should user recompile kernel to use kexec?
Dec 14 10:48:09 <Jay7> have you some manual?
Dec 14 10:48:25 <Jay7> It would be nice to place link to it on kexecboot.org site
Dec 14 10:54:10 <Tequila> still not
Dec 14 10:54:47 <Tequila> but there will be one at http://ac100.grandou.net/
Dec 14 10:55:29 <Tequila> I'm currently building the firmware again from scratch to verify I didn't pushed any mistake
Dec 14 10:55:41 <Tequila> and it tooks few hours
Dec 14 10:56:49 <Tequila> oups, it's just finished :) just 50 minutes with a AMD x4
Dec 14 11:10:14 <Jay7> hehe :)
Dec 14 11:10:28 <Jay7> I should go now
Dec 14 11:10:40 * Jay7 afk
Dec 14 17:09:39 <Tequila> Jay7: Here is the page related to my success with ac100 & tegra ;) http://ac100.grandou.net/multiboot
Dec 14 19:30:37 <Jay7> Tequila: thanks
**** ENDING LOGGING AT Thu Dec 15 02:59:57 2011