On Thu, 27 Jun 2013 19:22:15 +0200 Stefan Tauner <[email protected]> wrote:
> On Wed, 26 Jun 2013 15:59:54 -0700 > Aaron Durbin <[email protected]> wrote: > > > On Wed, Jun 26, 2013 at 3:58 PM, Stefan Tauner > > <[email protected]> wrote: > > > One thing he did not mention is that cbmem seems to not work on > > > his device. I don't know anything about cbmem but I looked into > > > it a bit. mapping the first address (0) works fine, but cbmem > > > does not find anything there and the mapping of the second > > > address (0xf0000) fails then with: > > > Looking for coreboot table at f0000 > > > Mapping 1MB of physical memory at 0xf0000. > > > > > > any ideas why this could happen? > > > > Could someone post the full serial log from the boot? I could take > > a look then. > > Guess what we tried to gather from cbmem ;) I have not followed the > discussion in detail, but IIRC he has no docking station and hence no > serial port... and most probably no USB debugging device either. > There are some possibilities: -> cbmem -c only seem to work with native graphics init or the VGA option rom on X60/T60 -> it doesn't work after resuming from suspend -> it may depend on some compilation options of the kernel(some options filter /dev/mem etc...) -> some cmdline options of the kernel can relax some checks about /dev/mem -> you need to be root to run ./cbmem -c (included for completeness, since you already know that). I've attached my cbmem -c on the T60. Denis.
cbmem-c.txt.xz
Description: application/xz
-- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
